al plus.pdf

AL PDH radio systems

User manual

MN.00107.E - 017Volume 1/1

The information contained in this handbook is subject to change without notice.

Property of Siae Microelettronica S.p.A. All rights reserved according to the law and according to the inter-national regulations. No part of this document may be reproduced or transmitted in any form or by anymeans, electronic or mechanical, without written permission from Siae Microelettronica S.p.A.

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Other products cited here in are constructor registered trademarks.

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Contents

Section 1.USER GUIDE 9

1 DECLARATION OF CONFORMITY ............................................................................... 9

2 FIRST AID FOR ELECTRICAL SHOCK AND SAFETY RULES .........................................10

2.1 FIRST AID FOR ELECTRICAL SHOCK....................................................................10

2.1.1 Artificial respiration .................................................................................10

2.1.2 Treatment of burns .................................................................................10

2.2 SAFETY RULES .................................................................................................11

2.3 CORRECT DISPOSAL OF THIS PRODUCT (Waste electrical & electronic equipment) ....13

2.4 INTERNAL BATTERY ..........................................................................................13

3 PURPOSE AND STRUCTURE OF THE MANUAL............................................................14

3.1 PURPOSE OF THE MANUAL.................................................................................14

3.2 AUDIENCE BASIC KNOWLEDGE ..........................................................................14

3.3 STRUCTURE OF THE MANUAL .............................................................................14

Section 2.DESCRIPTIONS AND SPECIFICATION 17

4 ABBREVIATION LIST................................................................................................17

4.1 LIST OF ABBREVIATIONS...................................................................................17

5 SYSTEM PRESENTATION ..........................................................................................19

5.1 RADIO SYSTEM OVERVIEW ................................................................................19

5.1.1 General .................................................................................................19

5.2 RECOMMENDATION ..........................................................................................19

5.3 APPLICATION ...................................................................................................19

5.4 SYSTEM ARCHITECTURE....................................................................................20

5.4.1 IDU.......................................................................................................20

5.4.2 IDU Plus ................................................................................................21

5.4.3 ODU......................................................................................................21

5.5 MANAGEMENT SYSTEM......................................................................................22

5.5.1 Hardware platform ..................................................................................22

5.5.2 Management ports ..................................................................................22

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5.5.3 Protocols ...............................................................................................22

6 EQUIPMENT TECHNICAL SPECIFICATIONS...............................................................26

6.1 TECHNICAL SPECIFICATIONS.............................................................................26

7 CHARACTERISTICS OF THE INDOOR UNIT ...............................................................38

7.1 GENERAL.........................................................................................................38

7.2 TRIBUTARY INTERFACE .....................................................................................38

7.2.1 2 Mbit/s interface....................................................................................38

7.2.2 34 Mbit/s interface ..................................................................................39

7.2.3 Ethernet interface ...................................................................................39

7.3 STM-1 INTERFACE ............................................................................................39

7.3.1 Characteristics of STM-1 electrical interface................................................40

7.4 SERVICE CHANNEL INTERFACE...........................................................................41

7.4.1 2 Mbit/s wayside interface........................................................................41

7.4.2 64 kbit/s co–directional interface ..............................................................41

7.4.3 64 kbit/s contra–directional interface V.11 .................................................41

7.4.4 Analogue interface ..................................................................................42

7.4.5 9600 bit/s low speed synchronous/asynchronous data .................................42

7.4.6 9600 or 2x4800 bit/s low speed asynchronous data.....................................42

7.4.7 Alarm interface.......................................................................................42

7.4.8 Network Management Interface ................................................................43

7.5 MODULATOR/DEMODULATOR .............................................................................44

7.6 CABLE INTERFACE ............................................................................................44

7.7 AVAILABLE LOOPS ............................................................................................44

8 DESCRIPTION OF THE INDOOR UNIT FOR 2, 8, 34 Mbit/s AND Nx2 Mbit/s SIGNALS..45

8.1 1+0/1+1 STANDARD IDU VERSION ....................................................................45

8.1.1 LIM .......................................................................................................45

8.1.2 Circuit description ...................................................................................45

8.1.3 RIM.......................................................................................................48

8.1.3.1 QAM modulator ........................................................................48

8.1.3.2 QAM demodulator.....................................................................48

8.1.3.3 Power supply ...........................................................................48

8.1.3.4 Telemetry IDU/ODU..................................................................48

8.1.4 CONTROLLER .........................................................................................49

8.1.4.1 Service signals.........................................................................49

8.1.4.2 Equipment software..................................................................49

8.1.4.3 Supervision ports .....................................................................50

8.2 IDU LOOPS ......................................................................................................50

8.2.1 Tributary loop.........................................................................................50

8.2.2 Baseband unit loop .................................................................................50

8.2.3 IDU loop................................................................................................51

9 DESCRIPTION OF THE INDOOR UNIT IDU PLUS FOR Nx2MBIT/S STREAMS HIERAR-CHIC AND NOT HIERARCHIC61

9.1 GENERAL.........................................................................................................61

9.2 COMPOSITION OF TERMINAL 1RU.......................................................................61

9.3 COMPOSITION OF TERMINAL 2RU.......................................................................62

9.4 1RU TERMINAL.................................................................................................62

9.5 2RU TERMINAL.................................................................................................63

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9.6 2 Mbit/s TRIBUTARY INTERFACE .........................................................................63

9.7 TERMINAL STM1+16E1 (1RU and 2RU)................................................................63

9.8 DROP-INSERT (2RU) .........................................................................................64

9.9 NODAL (UP TO 3X2RU)......................................................................................65

9.10 LIM.................................................................................................................66

9.11 CIRCUIT DESCRIPTION......................................................................................66

9.12 RIM ................................................................................................................68

9.12.1 QAM modulator ......................................................................................68

9.12.2 QAM demodulator ...................................................................................68

9.12.3 Power supply..........................................................................................68

9.12.4 Telemetry IDU/ODU ................................................................................69

9.13 EQUIPMENT CONTROLLER..................................................................................69

9.13.1 Service signals .......................................................................................69

9.13.2 Equipment software ................................................................................69

9.13.3 Supervision ports....................................................................................70

9.14 IDU LOOPS ......................................................................................................70

9.14.1 Tributary loop.........................................................................................71


9.14.3 IDU loop................................................................................................71

9.15 EXPANSION 53E1 .............................................................................................71

9.16 SERVICE CHANNEL ADAPTER .............................................................................71

9.17 PROCESSOR 53E1.............................................................................................71

10 DESCRIPTION OF THE INDOOR UNIT FOR 2 Mbit/s AND ETHERNET SIGNALS77

10.1 1+0/1+1 STANDARD IDU VERSION WITH ETHERNET INTERFACE............................77

10.1.1 LIM Ethernet/2 Mbit/s for 2 Mbit/s signals ..................................................77

10.1.2 Circuit description ...................................................................................77

10.1.3 LIM Ethernet/2 Mbit/s for Ethernet signals..................................................80

10.1.3.1 2 Mbit/s tributaries ...................................................................80

10.1.3.2 Electrical Ethernet interface .......................................................81

10.1.3.3 Front panel LEDs......................................................................81

10.1.3.4 Bridge/switch function ..............................................................81

10.1.3.5 Ethernet Full Duplex function .....................................................82

10.1.3.6 Link Loss Forwarding ................................................................82

10.1.3.7 MDI/MDIX cross–over ...............................................................82

10.1.3.8 VLAN functionality ....................................................................83

10.1.3.9 Switch organized by port...........................................................83

10.1.3.10 Switch organized by VLAN ID.....................................................83

10.1.3.11 Layer 2, Priority function, QoS, 802.1p........................................84

10.1.3.12 Layer 3, Priority function, QoS, IP–V4 ToS (DSCP) ........................85

10.1.4 RIM.......................................................................................................85

10.1.4.1 QAM modulator ........................................................................85

10.1.4.2 QAM demodulator.....................................................................85

10.1.4.3 Power supply ...........................................................................85

10.1.4.4 Telemetry IDU/ODU..................................................................86

10.1.5 CONTROLLER .........................................................................................86

10.1.5.1 Service signals.........................................................................86

10.1.6 Equipment software ................................................................................86

10.1.6.1 Supervision ports .....................................................................87

10.2 IDU LOOPS ......................................................................................................87

10.2.1 Tributary loop.........................................................................................87


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10.2.3 IDU loop................................................................................................88

11 DESCRIPTION OF THE INDOOR UNIT FOR E/W REPEATER WITH DROP/INSERT....100

11.1 GENERAL.......................................................................................................100

11.2 COMPOSITION ...............................................................................................100

11.3 IDU CHARACTERISTICS...................................................................................101

11.3.1 Management of tributaries .....................................................................101

11.3.2 Capacity ..............................................................................................101

11.3.3 E1 switching criteria ..............................................................................101

11.4 CIRCUIT DESCRIPTION....................................................................................101

11.4.1 Matrix .................................................................................................102

11.4.2 Processor.............................................................................................102

11.4.3 RIM.....................................................................................................105

11.4.3.1 QAM modulator ......................................................................105

11.4.3.2 QAM demodulator...................................................................105

11.4.3.3 Power supply .........................................................................105

11.4.3.4 Telemetry IDU/ODU................................................................105

11.4.4 CONTROLLER .......................................................................................106

11.4.4.1 Service signals.......................................................................106

11.4.4.2 Equipment software................................................................106

11.4.4.3 Supervision ports ...................................................................107

11.5 IDU LOOPS ....................................................................................................107

11.5.1 Tributary loop.......................................................................................107

11.5.2 Baseband unit loop ...............................................................................107

11.5.3 IDU loop..............................................................................................108

12 CHARACTERISTICS OF THE OUTDOOR UNIT...........................................................112

12.1 GENERAL.......................................................................................................112

12.2 TECHNICAL SPECIFICATION.............................................................................112

13 OUTDOOR UNIT DESCRIPTION...............................................................................114

13.1 GENERAL.......................................................................................................114

13.2 TRANSMIT SECTION........................................................................................114

13.3 RECEIVE SECTION ..........................................................................................115

13.4 CABLE INTERFACE ..........................................................................................115

13.5 ATPC OPERATION ...........................................................................................115

13.6 1+1 Tx SYSTEM.............................................................................................115

13.7 POWER SUPPLY ..............................................................................................116

Section 3.INSTALLATION 123

14 INSTALLATION AND PROCEDURES FOR ENSURING THE ELECTROMAGNETIC COMPATI-BILITY123

14.1 GENERAL.......................................................................................................123

14.2 MECHANICAL INSTALLATION............................................................................123

14.2.1 IDU installation.....................................................................................123

14.3 ELECTRICAL WIRING.......................................................................................124

14.4 GROUNDING CONNECTION ..............................................................................125

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15 USER CONNECTIONS..............................................................................................126

15.1 CONNECTOR USE FOR 1+0/1+1 STANDARD VERSION.........................................126

15.2 CONNECTOR USE FOR 1+0 COMPACT AND NON EXPANDABLE VERSIONS ..............126

15.3 STANDARD VERSION CONNECTORS..................................................................128

15.4 1/2 UNIT COMPACT VERSION CONNECTORS ......................................................132

16 USER CONNECTIONS FOR IDU PLUS.......................................................................135

16.1 CONNECTOR USE FOR 1+0/1+1 IDU PLUS VERSION ...........................................135

17 INSTALLATION ONTO THE POLE OF THE ODU WITH SEPARATED ANTENNA ...........141

17.1 INSTALLATION KIT .........................................................................................141

17.2 REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED) ...........................................141

17.3 INSTALLATION PROCEDURE.............................................................................142

17.4 GROUNDING ..................................................................................................143

18 INSTALLATION ONTO THE WALL OF THE ODU WITH SEPARATED ANTENNA...........155




18.4 GROUNDING ..................................................................................................157

19 INSTALLATION ONTO THE POLE OF THE ODU WITH INTEGRATED ANTENNA .........166

19.1 FOREWORD ...................................................................................................166




19.4.1 Installation onto the pole of the support system and the antenna ................167

19.4.2 Installation of ODU................................................................................168

19.4.3 ODU installation....................................................................................168

19.5 ANTENNA AIMING...........................................................................................169

19.6 COMPATIBILITY..............................................................................................169

19.7 GROUNDING ..................................................................................................169

20 INSTALLATION ONTO THE POLE OF THE ODU WITH INTEGRATED ANTENNA (KITV32307, V32308, V32309)184

20.1 FOREWORD ...................................................................................................184




20.5 1+0 MOUNTING PROCEDURES .........................................................................186

20.5.1 Setting antenna polarization...................................................................186

20.5.2 Installation of the centring ring on the antenna.........................................186

20.5.3 Installation of 1+0 ODU support .............................................................186

20.5.4 Installation onto the pole of the assembled structure .................................186

20.5.5 Installation of ODU (on 1+0 support).......................................................186

20.5.6 Antenna aiming ....................................................................................187

20.5.7 ODU grounding.....................................................................................187

20.6 1+1 MOUNTING PROCEDURES .........................................................................187

20.6.1 Installation of Hybrid .............................................................................187

20.6.2 Installation of ODUs (on hybrid for 1+1 version) .......................................188

21 INSTALLATION ONTO THE POLE OF THE 4 GHz ODU WITH SEPARATED ANTENNA (KIT

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V32323)197




Section 4.LINE-UP 203

22 LINE–UP OF THE RADIO HOP .................................................................................203

22.1 LINE–UP OF THE RADIO HOP............................................................................203

22.1.1 Antenna alignment and received field measurement ..................................203

22.1.2 Network element configuration ...............................................................204

22.1.3 Radio checks ........................................................................................204

23 LINE–UP OF LIM ETHERNET/2 Mbit/s ....................................................................206

23.1 GENERAL.......................................................................................................206

23.2 LOCAL LAN–1 PORT TO REMOTE LAN–1 PORT TRANSPARENT CONNECTION LAN PERPORT206

23.3 LOCAL LAN–1 PORT TO REMOTE LAN–1 PORT TRANSPARENT CONNECTION LAN PERPORT211

23.4 3 TO 1 PORT CONNECTIONS ............................................................................214

23.5 3 TO 1 PORT CONNECTIONS, SETTINGS FOR UNTAGGED TRAFFIC ........................214

23.6 3 TO 1 PORT CONNECTIONS, SETTINGS FOR TAGGED AND UNTAGGED TRAFFIC ....217

23.7 3 TO 1 CONNECTIONS: EXAMPLES OF PRIORITY MANAGEMENT ............................218

24 LINE–UP OF LIM FOR EAST/WEST REPEATER WITH DROP/INSERT .......................221

24.1 GENERAL.......................................................................................................221

24.2 BASEBAND CONFIGURATION............................................................................221

24.3 EAST/WEST CONFIGURATION ..........................................................................222

24.4 EAST OR WEST PRESETTING............................................................................223

24.5 TRIBUTARY ENABLING ....................................................................................224

24.6 ONE DIRECTION TRIBUTARY CONNECTION ........................................................225

24.7 PROTECTED TRIBUTARY CONNECTION ..............................................................226

24.8 PROTECTION SETTING (Rx E1 SWITCH) ............................................................226

24.9 PASS–THROUGH E1 CONNECTION ....................................................................227

Section 5.MAINTENANCE 229

25 PERIODICAL CHECKS .............................................................................................229

25.1 GENERAL.......................................................................................................229

25.2 CHECKS TO BE CARRIED OUT ..........................................................................229

26 TROUBLESHOOTING...............................................................................................230

26.1 GENERAL.......................................................................................................230

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26.2 TROUBLESHOOTING PROCEDURE .....................................................................230

26.2.1 Loop facilities .......................................................................................230

26.2.2 Alarm messages processing....................................................................231

27 EQUIPMENT CONFIGURATION UPLOAD/SAVE/DOWNLOAD. PARAMETER MODIFICA-TION AND CREATION OF VIRTUAL CONFIGURATIONS.232

27.1 SCOPE ..........................................................................................................232

27.2 PROCEDURE...................................................................................................232

27.2.1 General equipment configuration.............................................................232

27.2.2 Addresses and routing table ...................................................................233

27.2.3 Remote Element Table...........................................................................234

28 BACK UP FULL EQUIPMENT CONFIGURATION WITHOUT POSSIBILITY OF MODIFYINGTHE PARAMETERS235

28.1 SCOPE ..........................................................................................................235

28.2 CONFIGURATION UPLOAD ...............................................................................235

28.3 CONFIGURATION DOWNLOAD ..........................................................................235

Section 6.PROGRAMMING AND SUPERVISION 237

29 PROGRAMMING AND SUPERVISION.......................................................................237

29.1 GENERAL.......................................................................................................237

Section 7.COMPOSITION 239

30 COMPOSITION OF THE INDOOR UNIT ....................................................................239

30.1 GENERAL.......................................................................................................239

30.2 IDU PART NUMBER .........................................................................................239

30.3 COMPOSITION OF THE INDOOR UNIT................................................................240

31 COMPOSITION OF THE INDOOR UNIT IDU PLUS ....................................................242

31.1 GENERAL.......................................................................................................242

31.2 IDU PLUS PART NUMBER .................................................................................242

31.3 COMPOSITION OF THE IDU PLUS......................................................................242

31.3.1 1+0 1RU 32E1 Terminal.........................................................................243

31.3.2 1+1 1RU 32E1 terminal .........................................................................243

31.3.3 1+1 terminale 2RU 53E1........................................................................244

31.3.4 2RU 32E1 drop/insert ............................................................................244

31.3.5 Nodal 2RU STM1 E1 ..............................................................................244

32 COMPOSITION OF OUTDOOR UNIT.........................................................................246

32.1 GENERAL.......................................................................................................246

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Section 8.LISTS AND SERVICES 249

33 LIST OF FIGURES ...................................................................................................249

34 LIST OF TABLES .....................................................................................................255

35 ASSISTANCE SERVICE............................................................................................257

35.1 RQ.00961 MODULE .........................................................................................257

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Section 1.USER GUIDE

1 DECLARATION OF CONFORMITY

SIAE Microelettronica S.p.A. declares that the products:

- digital radio relay system AL4

- digital radio realy system AL7











complies with the essential requirements of article 3 of the R&TTE Directive (1999/05/EC) and therefore ismarked CE.

The following standards have been applied:

- EN 60950:200 “Safety of information technology equipment”.

- EN 301 489–4 V.1.3.1 (2002–8): “Electromagnetic compatibility and radio spectrum Matters (ERM);Electromagnetic Compatibility (EMC) standard for radio equipment and services; Part 4. Specific con-ditions for fixed radio links and ancillary equipment and services”

- ETSI EN 301 751 V.1.1. (2002–12): “Fixed Radio Systems; Point–to point equipment and antennas;generic harmonized standard for point–to–point digital fixed radio systems and antennas covering theessential requirements under article 3.2 of the 1999/5/EC Directive”.

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2 FIRST AID FOR ELECTRICAL SHOCK AND SAFETY RULES

2.1 FIRST AID FOR ELECTRICAL SHOCK

Do not touch the bare hands until the circuit has been opened. pen the circuit by switching off the lineswitches. If that is not possible protect yourself with dry material and free the patient from the con-ductor.

2.1.1 Artificial respiration

It is important to start mouth resoutputtion at once and to call a doctor immediately. suggested procedurefor mouth to mouth resoutputtion method is described in the Tab.1.

2.1.2 Treatment of burns

This treatment should be used after the patient has regained consciousness. It can also be employed whileartificial respiration is being applied (in this case there should be at least two persons present).

Warning

• Do not attempt to remove clothing from burnt sections

• Apply dry gauze on the burns

• Do not apply ointments or other oily substances.

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Tab.1 - Artificial respiration

2.2 SAFETY RULES

When the equipment units are provided with the plate, shown in Fig.1, it means that they contain compo-nents electrostatic charge sensitive.

Step Description Figure

1

Lay the patient on his back with his arms parallel to the body. If the patient is laying on an inclined plane, make sure that his

stomach is slightly lower than his chest. Open the patients mouth and check that there is no foreign matter in mouth (den-

tures, chewing gum, etc.).

2

Kneel beside the patient level with his head. Put an hand under the patient’s head and one under his neck.

Lift the patient’s head and let it recline backwards as far as possible.

3

Shift the hand from the patient’s neck to his chin and his mouth, the index along his jawbone, and keep the other fingers

closed together.

While performing these operations take a good supply of oxy-gen by taking deep breaths with your mouth open

4

With your thumb between the patient’s chin and mouth keep his lips together and blow into his nasal cavities

5

While performing these operations observe if the patient’s chest rises. If not it is possible that his nose is blocked: in that case open the patient’s mouth as much as possible by pressing on his chin with your hand, place your lips around his mouth and blow into his oral cavity. Observe if the patient’s chest heaves. This second method can be used instead of the first even when the patient’s nose is not obstructed, provided his

nose is kept closed by pressing the nostrils together using the hand you were holding his head with. The patient’s head must

be kept sloping backwards as much as possible.

6

Start with ten rapid expirations, hence continue at a rate of twelve/fifteen expirations per minute. Go on like this until the patient has regained conscious–ness, or until a doctor has as-

certained his death.

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Fig.1 - Components electrostatic charge sensitive indication

In order to prevent the units from being damaged while handling, it is advisable to wear an elasticized band(Fig.2) around the wrist ground connected through coiled cord (Fig.3).

Fig.2 - Elasticized band

Fig.3 - Coiled cord

The units showing the label, shown in Fig.4, include laser diodes and the emitted power can be dangerousfor eyes; avoid exposure in the direction of optical signal emission.

Fig.4 - Laser indication

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2.3 CORRECT DISPOSAL OF THIS PRODUCT (Waste electrical & electronic equipment)

(Applicable in the European Union and other European countries with separate collection systems). Thismarking of Fig.5 shown on the product or its literature, indicates that it should not be disposed with otherhousehold wastes at the end of its working life. To prevent possible harm to the environment or humanhealth from uncontrolled waste disposal, please separate this from other types of wastes and recycle itresponsibly to promote the sustainable reuse of material resources. Household users should contact eitherthe retailer where they purchased this product, or their local government office, for details of where andhow they can take this item for environmentally safe recycling. Business users should contact their supplierand check the terms and conditions of the purchase contract. This product should not be mixed with othercommercial wastes for disposal.

Fig.5 - WEEE symbol - 2002/96/CE EN50419

2.4 INTERNAL BATTERY

Inside the equipment, in IDU unit, there is a lithium battery.

CAUTION: Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteriesaccording to law.

14 AL - MN.00107.E - 017

3 PURPOSE AND STRUCTURE OF THE MANUAL

3.1 PURPOSE OF THE MANUAL

The purpose of this manual consists in providing the user with information which permit to operate andmaintain the AL radio family.

Warning: This manual does not include information relevant to the SCT/LCT management program win-dows and relevant application. They will provided by the program itself as help-on line.

3.2 AUDIENCE BASIC KNOWLEDGE

The following knowledge and skills are required to operate the equipment:

• a basic understanding of microwave transmission

• installation and maintenance experience on digital radio system

• a good knowledge of IP/OSI networks and routing policy.

3.3 STRUCTURE OF THE MANUAL

The manual is subdivided into sections each of them developing a specific topic entitling the section.

Each section consists of a set of chapters, enlarging the main subject master.

Section 1 – User Guide

It provides the information about the main safety rules and expounds the purpose and the structure of themanual.

Section 2 – Description and specifications

It traces the broad line of equipment operation and lists the main technical characteristics of the wholeequipment and units it consists of.

List of abbreviation meaning is also supplied.

Section 3 – Installation

The mechanical installation procedures are herein set down as well as the user electrical connections.

The content of the tool kit (if supplied) is also listed.

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Section 4 – Line–Up

Line–up procedures are described as well as checks to be carried out for the equipment correct operation.The list of the instruments to be used and their characteristics are also set down.

Section 5 – Maintenance

The routine maintenance actions are described as well as fault location procedures in order to identify thefaulty unit and to re–establish the operation after its replacement with a spare one.

Section 6 – Programming and supervision

The AL radio family is programmed and supervised using different software tools. Some of them are al-ready available, some other will be available in the future.

This section lists the tools implemented and indicates if descriptions are already available.

Each description of software tools is supplied in a separated manual.

Section 7 – Composition

Position, part numbers of the components the equipment consist of, are shown in this section.

Section 8 – Lists and assistance

This section contains the lists of figures and tables and the assistance service information.

16 AL - MN.00107.E - 017

AL - MN.00107.E - 017 17

Section 2.DESCRIPTIONS AND SPECIFI-CATION

4 ABBREVIATION LIST

4.1 LIST OF ABBREVIATIONS

- AF Assured Forwarding

- AL Access Link

- AIS Alarm Indication Signal

- ATPC Automaric Transmit Power Control

- BB Baseband

- BBER Background Block Error Radio

- BER Bit Error Rate

- DSCP Differentiated Service Code Point

- DSP Digital Signal Processing

- EMC/EMI Electromagnetic Compatibility/Electromagnetic Interference

- EOC Embedded Overhead Channel

- ERC European Radiocommunication Committee

- ESD Electrostatic Discharge

- FEC Forward Error Corrector

- FEM Fast Ethernet Module

- HDLC High Level Data Link Control

- IDU Indoor Unit

- IF Intermediate Frequency

- IpToS Type of Service IP

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- LAN Local Area Network

- LAPS Link Access Procedure SDH

- LCT Local Craft Terminal

- LIM Line Interface Module

- LLF Link Loss Forwarding

- LOF Loss Of Frame

- LOS Loss Of Signal

- MAC Media Access Control

- MDI Medium Dependent Interface

- MDIX Medium Dependent Interface Crossover

- MIB Management Information Base

- MMIC Monolitic Microwave Integrated Circuit

- MTBF Mean Time Between Failure

- NE Network Element

- ODU Outdoor Unit

- OSI Open System Interconnection

- PDH Plesiochronous Digital Hierarchy

- PPI Plesiochronous Physical Interface

- PPP Point to Point Protocol

- PTOS Priority Type Of Service

- RIM Radio Interface Module

- SCT Subnetwork Craft Terminal

- SNMP Simple Network Management Protocol

- TCP/IP Transmission Control Protocol/Internet Protocol

- TOS Type Of Service

- VID Virtual LAN Identifier

- VLAN Virtual LAN

- WFQ Wait Fair Queue

- Wayside Traffic Additional 2 Mbit/s Traffic

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5 SYSTEM PRESENTATION

5.1 RADIO SYSTEM OVERVIEW

5.1.1 General

Access Link (AL) is the name of the new PDH radio family designed by SIAE for low/medium capacity trans-mission in the overall frequency bands from 4 GHz up to 38 GHz.

Different versions offer a wide range of transmission capacity using programmable 4QAM/16QAM modula-tion or 32QAM modulation.

Reduced cost, high reliability, compact size, light weight, fully programmability are the most outstandingperformances of these equipment.

5.2 RECOMMENDATION

The equipment complies with the following international standards:

• EN 301 489–4 for EMC

• ITU–R recommendations for all frequency bands

• EN 300 132–2 characteristics for power supply

• EN 300 019 environmental characteristics (Operation class 3.2 for IDU and class 4.1 for ODU; stor-age: class 1.2; transport: class 2.3)

• EN 60950 for safety

5.3 APPLICATION

Equipment main applications are:

• Radio links inside GSM cells of mobile radio networks

• Radio links for voice and data transmission

• LAN Ethernet extension

• Spur routes for high capacity radio systems

• Emergency links.

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5.4 SYSTEM ARCHITECTURE

The AL equipment consists of two separate units available in different versions:

• indoor unit called IDU for rack or 19” structure mounting that interfaces the input/output tributariesand supervises the full equipment

• outdoor unit called ODU for pole or wall mounting where the circuit forming the RF head take place.

The two units are interconnected via coaxial cable. Fig.6 and Fig.7 show a typical IDU/ODU layout whereasFig.8 shows the equipment block diagram in 1+1 configuration and Fig.9 shows the 1+0 non expandableversion.

5.4.1 IDU

The IDU is made–up in the following versions:

• 1+0 compact version non expandable, 1/2 unit high, capacity 2x2, 4x2 Mbit/s

• 1+0 compact version non expandable, 1/2 unit high, capacity 2x2, 4x2, 8x2 Mbit/s

• 1+0 version non expandable, 1 unit high, capacity 2x2, 4x2, 8x2, 16x2 Mbit/s

• 1+0 compact version non expandable, 1/2 unit high, capacity 2 Mbit/s and 10/100BaseT

• 1+0/1+1, 1 unit high, capacity 2x2, 4x2, 8x2, 16x2 Mbit/s

• 1+0/1+1 full duplicated, 2 unit high, capacity 2x2, 4x2, 8x2, 16x2 Mbit/s

• 1+0/1+1, 2 unit high, capacity 32x2 Mbit/s

• 1+1, 1 unit high, capacity 34/2x34 Mbit/s

• 1+0/1+1, 1 unit high, capacity 4x2 and 3x10/100BaseT

The IDU consists of LIM, CONTROLLER, RIM modules, plug–in inserted into a wired shelf.

In the 1+0 compact version LIM/CONTROLLER/RIM functions are integrated in a single module. Followingfunctionality description covers both 1+0 compact and 1+0/1+1 standard versions.

The LIM interfaces the in/out tributaries and, through a multiplexing (demultiplexing) and bit insertion (bitextraction) process, supplies (receives) the aggregate signal to the modulator (from the demodulator). Inaddition the LIM performs the digital processing of the QAM modulator.

Moreover the module duplicates the main signals at the Tx side and performs the changeover at the receiveside in the 1+1 version.

The RIM contains:

• the IF section of the 4QAM/16QAM programmable modemodulator or 32QAM in alternative;

• the power supply unit that processes the battery voltage to supply power to the IDU circuits andsend the battery voltage towards the ODU;

• the cable interface for the bidirectional communication between IDU and ODU via interconnectingcable.

The Controller performs the following:

• interfaces the service signals as 1x9600 bit/s or 2x4800 bit/s, 64 kbit/s, 2 Mbit/s (details are givenin the system technical specification)

• contains the equipment software that permits to control and to manage all the equipment function-ality through a main controller and associated peripherals distributed within IDU and ODU

• interfaces the SCT/LCT management system through Ethernet, RS232 and USB ports

• receive external alarms and route them to relay contact along with the internal alarms generatedby the equipment.

AL - MN.00107.E - 017 21

5.4.2 IDU Plus

The IDU Plus is made up of the following versions:

• terminal 1+0 and 1+1, 2x2 Mbit/s up to 32x2 Mbit/s capacity with up to 32E1 Mbit/s interface,subrack 1RU

• terminal 1+0 and 1+1, 2x2 Mbit/s up to 53x2 Mbit/s capacity with up to 53E1 Mbit/s interface,subrack 2RU

• drop-insert 1+0, 1+1, 4x(1+0), up to 4x53x2 Mbit/s capacity, that is passthrough up to 212x2Mbit/s streams plus drop-insert up to 32x2 Mbit/s or up to 53x2 Mbit/s or up to 79x2 Mbit/s withSTM1+16E1 interface, equipped with matrix into 2RU

• nodal, up to 3xIDU Plus can be joined in a mode giving full switching capabilitiesto all the 2 Mbit/sstreams coming from max 12 directions. Any direction can contain max 53x2 Mbit/s.

1RU IDU Plus consists of LIM 32E1, Eq. Controller, RIM plug-in inserted into a wired shelf.

2RU IDU Plus consists of Eq. Controller, LIM 32E1 or Matrix with 32E1, or Matrix with STM1 and 16E1, oneProcessor for two ODU.

The LIM interfaces the in/out tributaries and, through a multiplexing (demultiplexing) and bit insertion (bitextraction) process, supplies (receives) the aggregate signal to the modulator (from the demodulator). Inaddition the LIM performs the digital processing of the QAM modulator.

Moreover the module duplicates the main sigbals at the Tx side and performs the changeover at the receiveside in the 1+1 version.

The Matrix and the processor perform LIM Plus drop/insert of each 2 Mbit/s stream coming from max 4directions and cross-connection of each 2 Mbit/s stream from 12 direction for a Nodal configuration.

The RIM contains:

• the IF section of the 4QAM/16QAM programmable modemodulator or 32QAM in alternative;

• the power supply unitthat processes the battery voltage to supply power to the IDU circuits andsend the battery voltage towards the ODU

• the cable interface for the bidirectional communication between IDU and ODU via interconnectingcable.

The Controller performs the following:

• interfaces the service signals as 1x9600 bit/s or 2x4800 bit/s, 64 kbit/s, 2 Mbit/s (details are givenin the system technical specification)

• contains the equipment software that permits to control and to manage all the equipment functio-nality through a main controller and associated peripherals distributed within IDU and ODU

• interfaces the SCT/LCT management system through Ethernet, RS232 and USB ports

• receive external alarms and route them to relay contact along with the internal alarms generatedby the equipment.

5.4.3 ODU

The ODU unit contains circuits that permit to interface from one side the IDU and the antenna from theother side.

The QAM modulated carrier is shifted to RF frequency bands through a double conversion.

Similarly it occurs at the receive side to send the IF converted carrier to the demodulator within the IDU.

The ODU unit is available in two different versions: AL and AS.

The ODU AS is also called “Universal” because it can be used as SDH ODU in Siae ALS (SIAE SDH link fam-ily).

Antenna coupling is performed through a balanced or unbalanced hybrid system.

22 AL - MN.00107.E - 017

5.5 MANAGEMENT SYSTEM

AL different equipment can be locally and remotely controlled via a dedicated application software calledSCT/LCT running on PC.

It provides a friendly graphic interface complying with current standard use of keyboard, mouse, windowsand so on.

5.5.1 Hardware platform

The hardware platform used by SCT/LCT is based on personal computer having at least following charac-teristics:

• microprocessor Pentium 133 MHz

• 32 Mbyte RAM

• windows compatible graphic monitor

• floppy drive 1.44 Mb

• HD with 50 Mbyte of free space

• Windows 95/Windows NT/Windows 98/Windows 2000/Windows XP.

5.5.2 Management ports

The SCT/LCT program is connected to the equipment via the following communication ports:

• Ethernet LAN, 10BaseT, 10Base2, AUI

• Asynchronous RS232 serial line

• USB port (1+0 version only)

• Embedded Overhead Channel (EOC) embedded into the radio frame.

• Embedded Overhead Channel (EOC) embedded into a 16 kbit/s or 4x16 kbit/s time slot of one ofthe 2 Mbit/s tributary signals.

5.5.3 Protocols

SNMP along with IP or OSI protocol stacks are used to reach and manage the equipment operation.

AL - MN.00107.E - 017 23

Fig.6 - 1+1 ODU typical configuration with integrated antenna

Fig.7 - 1+1 IDU typical configuration – 2x2, 4x2, 8x2, 16x2 Mbit/s

IDU - 1+1 - 2x2 - 4x2 - 8x2 - 16x2 Mb/s

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ODUIDU

R

CONTROLLER MODULERIM2 MODULE

LIM MODULE RIM1 MODULE

24 AL - MN.00107.E - 017

Fig.8 - 1+1 equipment block diagram

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AL - MN.00107.E - 017 25

Fig.9 - 1+0 non expandable equipment block diagram

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26 AL - MN.00107.E - 017

6 EQUIPMENT TECHNICAL SPECIFICATIONS

6.1 TECHNICAL SPECIFICATIONS

- Frequency range

- AL4 4.4 to 5 GHz

- AL7 7.11 to 7.7 GHz

- AL8 7.7 to 8.5 GHz

- AL11 10.7 to 11.7 GHz

- AL13 12.75 to 13.25 GHz

- AL15 14.4 to 15.35 GHz

- AL18 17.7 to 19.7 GHz

- AL23 21.2 to 23.6 GHz

- AL25 24.5 to 26.5 GHz

- AL28 27.5 to 29.5 GHz

- AL32 31.81 to 33.38 GHz

- AL38 37 to 39.5 GHz

- RF channel arrangement

- AL4 ITU–R Rec F.385–7

- AL7 ITU–R Rec F.385


- AL11 no ITU–R Rec for 11 GHz PDH




- AL23 ERC/T/R 13–02 Annex A or ITU–R Rec F.637

- AL25 ERC/T/R 13–02 Annex B

- AL28 ERC/T/R 13–02 Annex C

- AL32 ITU-R Rec. F.1520


- Go–return frequency

- AL4 100 MHz

- AL7 245/196/168/161/154 MHz

- AL8 311.32 MHz

- AL11 530 MHz

- AL13 266 MHz

- AL15 420/728 MHz

- AL18 1010 MHz

AL - MN.00107.E - 017 27

- AL23 1008/1232 MHz

- AL25 1008 MHz

- AL28 1008 MHz

- AL32 812 MHz

- AL38 1260 MHz

- Transmission capacity

- Main signal from 2 to 32x2 Mbit/s see Tab.2

- Main signal nx2 Mbit/s plus Ethernet transport see Tab.3

Tab.2 - Transmission capacity

Tab.3 - TDM plus Ethernet mixed transport structure

Configuration Max capacity

1+0/1+1 1U up to 16x2

1+0/1+1 2U up to 16x2

2+0 2U up to 32x2 in ring with D/I up to 16x2

1+0/1+1 1U 34/2x34

1+0/1+1 2U up to 32x2

Version Channel spacing (MHz) 2 Mbit/s availableAvailable Ethernet sig-

nal (Mbit/s)

2x2 Mbit/s 4QAM 3.521–

–24

4x2 Mbit/s 16QAM 3.542–

–48

4x2 Mbit/s 4QAM 742–

–28

8x2 Mbit/s 16QAM 7 4–

816

8x2 Mbit/s 4QAM 144–

816

16x2 Mbit/s 16QAM 144+1

12432

16x2 Mbit/s 4QAM 28 4+1

12432

32x2 Mbit/s 16QAM 284+1

15664

100BaseT 32QAM 28 2 100

100BaseT 32QAM 28 4 95

28 AL - MN.00107.E - 017

- Service channel capacity

The following service channels and auxiliary capacity are made available for each configuration:

• 1+0 compact – 2, 2x2, 4x2 Mbit/s compact version (1/2 standard unit) (obsolete) 1

- V28 interface 1x9600 baud data channel with digital party line or 2x4800 baud or RS232C 9600baud data channel sync./async.

• 1+0/1+1 standard – 2x2, 4x2, 8x2, 16x2, 34, 2x34 Mbit/s version (1 standard unit)

Available two service channels subdivided as follow:

- V28 interface 1x9600 baud data channel with digital party line or 2x4800 baud or RS232C 9600baud data channel sync/async.

- 64 kbit/s V11 co/contradirectional interface

- 2 Mbit/s wayside for capacity equal or higher than 16x2 Mbit/s1

• 1+0/1+1 high capcity – 32x2 Mbit/s version (2 standard units)

Availbale four service channels subdivided as follow.Two channels always available as standard:

- V28 interface 1x9600 baud data channel with digital party line or 2x4800 baud or RS232C 9600baud data channel sync/async.

- 64 kbit/s V11 co/contradiectional interface

Two channels available as option:

- V28 interface 1x9600 baud data channel with digital party line or 2x4800 baud 2x4800 baud or RS232C 9600 baud data channel sync/async

- 64 kbit/s G.703 co/contradirectional interface

- 2 wire 300/3400 Hz analogue interface with DTMF calling facility

- 2/4 wire 300–3400 Hz analogue interface with omnibus extension for EOW

- 2/4 wire 300–3400 Hz analogue interface

- 2 Mbit/s wayside

• 1+0/1+1 100 Mbit/s Ethernet version (1 standard unit)

Available three service channel as follow:

- V.28 interface 1x9600 baud data channel with digital party line or 2x4800 baud o RS232 (9600baud data channel synch/asynch

- 2 channels 2 Mbit/s wayside available on LIM front panel at tributary 3 and 4

- Antenna configuration 1+0/1+1 hot stand–by – 1 antenna/1+1 frequency diversity, 1 cross polar antenna or twoseparated antennas

- Frequency accuracy ± 5 ppm; ± 10 ppm ageing included

- RF spurious emissions according to ETSI EN 301 390

- Modulation 4QAM/16QAM/32QAM as per Tab.4 and Tab.5

Tab.4 - Modulation used according to bit rate and RF channel space

1 Up to 8x2 Mbit/s, version wayside channel are not available.

Modulat. type

Bit rate (Mbit/s)

2x2 4x2 8x2 16x2/34 32x2/2x34 100

4QAM 3.5 MHz 7 MHz 14 MHz 28 MHz n.a. n.a.

16QAM 1.75 MHz 3.5 MHz 7 MHz 14 MHz 28 MHz n.a.

32QAM n.a. n.a. n.a. n.a. n.a. 28 MHz

AL - MN.00107.E - 017 29

Tab.5 - Modulation, capacity, channeling and size for IDU Plus

- Demodulation coherent

- Output power at the antenna side, 1+0 version refer to Tab.6

- Receiver threshold at the antenna side 1+0 version refer to Tab.7 (2x2, 4x2 Mbit/s) and Tab.8 (8x2, 16x2, 32x2, 100 Mbit/s)

- Additional losses both Tx and Rx sides, 1+1 version

- 4 dB ±0.5 dB version with balanced hybrid

- ≤1.7 dB (branch1)/≤7 dB (branch 2) version with unbalanced hybrid

- Residual BER 1x10–11

- Maximum input level for BER 10–3 –20 dBm

Tab.6 - Nominal output power 1 dB tolerance - (1+0 version) ODU AL/ODU AS

Capacity Modulation Channeling Size

2x2 Mbit/s4x2 Mbit/s5x2 Mbit/s

4QAM16QAM16QAM

3,5 MHz 1RU

4x2 Mbit/s5x2 Mbit/s8x2 Mbit/s10x2 Mbit/s

4QAM4QAM16QAM16QAM

7 MHz 1RU


4QAM4QAM16QAM16QAM

14 MHz 1RU


4QAM4QAM16QAM

28 MHz 1RU

42x2 Mbit/s53x2 Mbit/s

16QAM32QAM

28 MHz 2RU

GHzOutput power

4QAMOutput power

16QAMOutput power

32QAM

4 +29/n.a. dBm +24/n.a. dBm +22/n.a. dBm

7 +27/30 dBm +22/26 dBm +20/n.a. dBm

8 +27/30 dBm +22/26 dBm +20/n.a. dBm

11 +25/29 dBm +20/25 dBm -

13 +25/29 dBm +20/25 dBm +20/n.a. dBm

15 +25/28 dBm +20/24 dBm +20/n.a. dBm

18 +20/24 dBm +15/20 dBm +15/20 dBm

23 +20/23 dBm +15/19 dBm +15/19 dBm

25 +20/23 dBm +15/19 dBm +15/19 dBm

28 +19/22 dBm +14/18 dBm +14/18 dBm

32 +17/20 dBm +13/16 dBm +13/16 dBm

38 +17/20 dBm +13/16 dBm +13/16 dBm

30 AL - MN.00107.E - 017

Tab.7 - Threshold 2x2, 4x2 Mbit/s

Tab.8 - Threshold 8x2 ..... 100 Mbit/s

- Power supply

- Power supply voltage –40.8 to –57.6 Vdc

- Power consumption see Tab.9

Terminal fully equipped with 370 m 1/4” IDU–ODU cable.

GHz

4QAM 16QAM

2x2 4x2 2x2 4x2

10–6 10–3 10–6 10–3 10–6 10–3 10–6 10–3

4 –92 –94 –89 –91 n.a. n.a. –85 –87

7 –91 –93 –88 –90 n.a. n.a. –84 –86

8 –91 –93 –88 –90 n.a. n.a. –84 –85

11 –90.5 –92.5 –87.5 –89.5 n.a. n.a. –83.5 –85.5

13 –90.5 –92.5 –87.5 –89.5 n.a. n.a. –83.5 –85.5

15 –90.5 –92.5 –87.5 –89.5 n.a. n.a. –83.5 –85.5

18 –90 –92 –87 –89 n.a. n.a. –84 –86

23 –90 –92 –87 –89 n.a. n.a. –83 –85

25 –89.5 –91.5 –86.5 –88.5 n.a. n.a. –82.5 –84.5

28 –89 –91 –86 –88 n.a. n.a. –82 –84

32 -88 -90 -85 -88 n.a. n.a. -81 -83

38 –88 –90 –85 –88 n.a. n.a. –81 –83

GHz

4QAM 16QAM 32QAM

8x2 16x2/34 32x2/2x34 8x2 16x2/34 32x2/2x34 100

10–6 10–3 10–6 10–3 10–6 10–3 10–6 10–3 10–6 10–3 10–6 10–3 10–6 10–3

4 –86 –88 –83 –85 n.a. n.a. –86 –84 –79 –81 –76 –78 –73 –75

7 –85 –87 –82 –84 n.a. n.a. –81 –83 –78 –80 –75 –77 –72 –74

8 –85 –87 –82 –84 n.a. n.a. –81 –83 –78 –80 n.a. n.a. n.a. n.a.

11 –84.5 –86.5 –81.5 –83.5 n.a. n.a. –80.5 –82.5 –77.5 –79.5 –74.5 –76.5 –71.5 –73.5

13 –84.5 –86.5 –81.5 –83.5 n.a. n.a. –80.5 –82.5 –77.5 –79.5 –74.5 –76.5 –71.5 –73.5

15 –84.5 –86.5 –81.5 –83.5 n.a. n.a. –80.5 –82.5 –77.5 –79.5 –74.5 –76.5 –71.5 –73.5

18 –84 –86 –81 –83 n.a. n.a. –80 –82 –77 –79 –74 –76 –71 –73

23 –84 –86 –81 –83 n.a. n.a. –80 –82 –77 –79 –73 –75 –70 –72

25 –83.5 –85.5 –80.5 –82.5 n.a. n.a. –79.5 –81.5 –76.5 –78.5 –72.5 –74.5 –69.5 –71.5

28 –83 –85 –80 –82 n.a. n.a. –79 –81 –76 –78 –72 –74 –69 –71

32 -82 -84 -80 -81 n.a. n.a. -78 -80 -75 -77 -72 -74 -69 -71

38 –82 –84 –80 –81 n.a. n.a. –78 –80 –75 –77 –71 –73 –68 –70

AL - MN.00107.E - 017 31

Tab.9 - Power consumption

- IDU only consumption see Tab.10

Tab.10 - IDU consumption

- Guaranteed consumption for power supply connector see Tab.11

Warning: As power supply circuit protection, on RIM board behind the front panel, a fuse F1 with followingcharacteristics is present:

- Nominal current 3A

- Nominal voltage 125 V dc

- Type timed

- Dimensions 6.10 mm x 2.59 mm

Tab.11 - Guaranteed consumption for power supply connector

- Environmental conditions

- Operational range for IDU –5° C to +45° C

- Operational range for ODU –33° C to +55° C

- Survival temperature range for IDU –10° C to +55° C

- Survival temperature range for ODU –40° C to +60° C

- Operational humidity for IDU 95% at +35° C

- Operational humidity for ODU weather proof according to IP65 environmentalclass

- Heat dissipation of ODU Thermal resistance 0.5° C/WSolar heat gain: not exceeding 5° C

- Wind load ≤260 Km/h

Configuration

Guaranteed pow-er consumption

f≤15 GHz –40.8 a –57.6 Vdc

Nominal power consumption

f≤15 GHz -48 Vdc

Guaranteed pow-er consumption

f>15 GHz –40.8 a –57.6 Vdc

Nominal power consumption

f>15 GHz -48 Vdc

1+0 with compact IDU ≤42 W ≤42 W ≤31/44 W ≤31/44 W

1+0 with standard IDU ≤50/52 W ≤42/44 W ≤39/52 W ≤31/44 W

1+1 with standard IDU ≤74/84 W ≤66/76 W ≤58/84 W ≤50/76 W

High capacity 1+0 ≤54/56 W ≤46/48 W ≤43/56 W ≤35/48 W

High capacity 1+1 ≤79/87 W ≤71/79 W ≤62/87 W ≤54/79 W

2x (1+0) ≤78/90 W ≤70/82 W ≤65/90 W ≤57/82 W

ConfigurationGuaranteed

consumption–40.8 a –57.6 Vdc

Nominal consumption

-48 Vdc

1+0 Standard Configuration ≤25 Watts ≤24 Watts

1+0 High Capacity Configuration ≤45 Watts ≤44 Watts

1+1 Standard Configuration ≤30 Watts ≤28 Watts

1+1 High Capacity Configuration ≤50 Watts ≤48 Watts

2+0 East/West Repeater Configuration ≤53 Watts ≤51 Watts

Configuration Imax per f 15 GHz Imax per f > 15 GHz

IDU standard ≤ 1,13 A ≤ 0,96 A

IDU high capacity ≤ 1,23 A ≤ 1,05 A

32 AL - MN.00107.E - 017

- Mechanical characteristics

- Dimensions refer to Tab.12

Tab.12 - IDU/ODU dimensions

- Weight refer to Tab.13

Tab.13 - IDU/ODU weight

- Mechanical layout refer to typical Fig.10 to Fig.24.

In following pages, most common IDUs are shown.

Fig.10 - 1+1 IDU standard configuration – Micro coaxial tributary connectors

Fig.11 - 1+1 IDU standard – Ethernet tributary connectors

Width (mm) Height (mm) Depth (mm)

ODU AL 1+0 255 255 100

ODU AL 1+1 278 255 280

ODU AS 1+0 255 255 121

ODU AS 1+1 358 255 280

IDU 1+0/1+1 standard, up to 16x2, up to 2x34 Mb/s 480 45 260

IDU 1+0/1+1 32x2 Mbit/s 480 90 260

IDU 2+0 east/west repeater 480 90 260

IDU Plus 53E1 480 90 260

IDU Plus drop-insert 480 90 260

ODU AL 1+0 4.5 kg

ODU AL 1+1 13.3 kg

ODU AS 1+0 5.5 kg

ODU AS 1+1 15.3 kg

IDU 1+0/1+1 standard, up to 16x2, up to 2x34 Mbit/s 3.5/3.7 kg

IDU 1+0/1+1 32x2 Mbit/s 3.5/3.7 kg

IDU 2+0 east/west repeater 3.7 kg

Panning system 1+0/1+1 4.4 kg

IDU - 1+1 - 2x2 - 4x2 - 8x2 - 16x2 Mb/s

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AL - MN.00107.E - 017 33

Fig.12 - 1+1 IDU standard – D type tributary connectors

Fig.13 - 1+1 IDU (34, 2x34 Mbit/s)

Fig.14 - 1+1 IDU high capacity configuration – Micro coaxial tributary connectors

Fig.15 - 1+1 IDU high capacity configuration – D type tributary connectors

Fig.16 - IDU Plus 1U - 32x2 Mbit/s

Fig.17 - IDU Plus 1+1 2U - 16x2 Mbit/s + STM1 nodale 4+0

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Trib: M-N-O-PTrib: I-J-K-LTrib: E-F-G-H

2Mb/s2Mb/s2Mb/s2Mb/s

Trib: A-B-C-D

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RIM


FAIL

Trib: 13-14-15-16Trib: 9-10-11-12Trib: 1-2-3-4 Trib: 5-6-7-8

Trib: 29-30-31-32Trib: 25-26-27-28Trib: 21-22-23-24Trib: 17-18-19-20

2Mb/s 2Mb/s 2Mb/s 2Mb/s

FAIL

Q3R

IDU ODU

TESTREM

TX RX12 SIDE

2Mb/sCH2CH1RS232USER IN/OUTLCT

A WAY

+ -

-+

Q3/1R

IDU ODU

TESTREM

SIDE

2Mb/sCH2CH1RS232 USER IN/OUTLCT

A WAYQ3/2

FAIL

Trib: 1-8 Trib: 9-16 Trib: 17-24 Trib: 25-32

Q3/1R

IDU ODU

TESTREM

SIDE


A WAYQ3/2

+ -

-++ -

-+

FAIL

FAIL

21

NBUS

21

FAIL

Trib: 1-8 Trib: 9-16

ON ON

STM12MHz

34 AL - MN.00107.E - 017

Fig.18 IDU Plus 1+1 2U (up to 53x2 Mbit/s)

Fig.19 - 1+0 ODU AL with separated antenna (pole mounting)

Fig.20 - 1+1 ODU AL with separated antenna

FAIL


Q3/2WAYA

LCT USER IN/OUTRS232 CH1 CH2 2Mb/s

SIDE

REM TEST

ODUIDUR

Q3/1

+ -

-+

FAIL

Trib: 33-40 Trib: 41-48 Trib: 49-53

AL - MN.00107.E - 017 35

Fig.21 - 1+0 ODU AL with integral antenna (pole mounting)

Fig.22 - 1+1 ODU AL with integral antenna (pole mounting)

36 AL - MN.00107.E - 017

Fig.23 - 1+1 ODU AL with separated antenna (wall mounting)

AL - MN.00107.E - 017 37

Fig.24 - ODU AS 1+1 with separated antenna

38 AL - MN.00107.E - 017

7 CHARACTERISTICS OF THE INDOOR UNIT

7.1 GENERAL

The following IDU characteristics are guaranteed for the temperature range from –5° C to +45° C.

7.2 TRIBUTARY INTERFACE

7.2.1 2 Mbit/s interface

Input side

- Bit rate 2048 kbit/s ±50 ppm

- Line code HDB3

- Rated impedance 75 Ohm or 120 Ohm

- Rated level 2.37 Vp/75 Ohm or 3 Vp/120 Ohm

- Return loss 12 dB from 57 kHz to 102 kHz18 dB from 102 kHz to 2048 kHz14 dB from 2048 kHz to 3072 kHz

- Max attenuation of the input cable 6 dB according to trend

- Accepted jitter see mask in Table 2, CCITT Rec. G.823

- Transfer function see mask in Figure 1, CCITT Rec. G.742

- Connector type 1.0/2.3 or SUB–D, 25 pins

Output side




- Output jitter in accordance with G.742/G.823

- Pulse shape see mask in Figure 15, CCITT Rec. G.703

- Connector type 1.0/2.3 or SUB–D, 25 pins

f

AL - MN.00107.E - 017 39

7.2.2 34 Mbit/s interface

Input side


- Line code HDB3

- Rated impedance 75 Ohm

- Rated level 1.0 Vp/75 Ohm


- Max attenuation of the input cable 12 dB at 17184 kHz according to trend


- Transfer function in accordance with G.823

- Connector type 1.0/2.3

Output side



- Output jitter 0.3 U.I. from 0 Hz to 800 kHz0.05 U.I. from 10 kHz to 800 kHz

- Rated level 1.0 Vp/75 Ohm


- Connector type 1.0/2.3

7.2.3 Ethernet interface

- Ethernet characteristics according to IEEE 802.3

- Ethernet switch functionalities MAC switchingMAC learningMAC AgeingIEEE 802.1q VLANIEEE 802.1x Flow ControlIEEE 802.1p QoSIP–V4 ToS

7.3 STM-1 INTERFACE

The STM-1 interface can be specialized for different applications, by simply equipping the STM-1 interfacewith the appropriate pluggable optical or electrical transceiver. Optical interface has LC connectors. Infor-mation about the presence/absence and type of transceiver is transferred to the main controller. The char-acteristics of all the possible optical interfaces are summarized in the Tab.14.

f

40 AL - MN.00107.E - 017

Tab.14 - Optical interface characteristics

The LIM is provided with Automatic Laser Shutdown as prescribed by ITU-T G.664 Recommendation.

7.3.1 Characteristics of STM-1 electrical interface

Input side

- Bit rate 155520 kbit/s ±4,6 ppm

- Line code CMI

- Rated impedance 75 ohm

- Rated level 1 Vpp ±0,1 V

- Return loss ≥ 15 dB from 8 MHz to 240 MHz

- Max attenuation of the input cable 12,7 dB at 78 MHz ( law)

Output side

- Bit rate 155520 kbit/s ±4,6 ppm

- Rated level 1 Vpp ±0,1 V

- Pulse shape see mask of Figure 24 and 25 of ITU-TRec. G.703

Interface Ref.Launched

power(dBm)

Minimum sensitivity

(dBm)

Operating wavelength

Transceiver FiberDistance

(km)

L-1.2 G.957 0 ... -5 -34 1480-1580 LaserSingle-Mode

Fino a 80

L-1.1 G.957 0 ... -5 -34 1263-1360 LaserSingle-Mode

Fino a 40

S-1.1 G.957 -8 ... -15 -28 1263-1360 LaserSingle-Mode

Fino a 15

I-1 ANSI -14 ... -20 -28 1263-1360 Led MultiMode Fino a 2

f

AL - MN.00107.E - 017 41

7.4 SERVICE CHANNEL INTERFACE

7.4.1 2 Mbit/s wayside interface

Input side


- Line code HDB3




- Max attenuation of the input cable 6 dB according to trend


- Transfer function see mask in Figure 1, CCITT Rec. G.742

Output side





- Output jitter in accordance with G.742/G.823

7.4.2 64 kbit/s co–directional interface

- Tolerance ±100 ppm

- Coding synch + data + octet as per G.703

- Impedance 120 Ohm

- Max attenuation of the input cable 3 dB at 128 kHz

- User side see CCITT Rec. G.703

- Input/output level 1 Vp/120 Ohm ±0.1 V

- Return loss see tables at par. 1.2.1.3 in CCITT Rec. G.703

7.4.3 64 kbit/s contra–directional interface V.11

- Tolerance ±100 ppm

- Equipment side contra–directional

- Coding clock and data on independent wires

- Electrical interface see Rec. CCITT V.11

f

42 AL - MN.00107.E - 017

7.4.4 Analogue interface

- Electrical characteristics as per Recc. G.712

- Input level from –14 dBr to +1 dBr/600 Ohm

- Output level from –11 dBr to +4 dBr/600 Ohm

7.4.5 9600 bit/s low speed synchronous/asynchronous data

- Data interface RS232

- Electrical interface CCITT Rec. V.28

- Input speed 9600 baud

- Control wires DTR, DSR, DCD

7.4.6 9600 or 2x4800 bit/s low speed asynchronous data

- Electrical interface CCITT Rec. V.28

- Input speed 4800 or 9600 bit/s

- Electrical interface V.28

7.4.7 Alarm interface

User output

- Relay contacts normally open (NO) or normally closed (NC)

- Open contacts Rmin 100 Mohm at 500 Vdc

- Closed contacts Rmax 0.5 Ohm

- Switching voltage Vmax 100 V

- Switching current Imax 1A

User input

- Equivalent circuit recognised as a closed contact 200 Ohm risist. (max) referred to ground

- Equivalent circuit recognised as an open contact 60 kOhm (min) referred to ground

AL - MN.00107.E - 017 43

7.4.8 Network Management Interface

RJ45 interface

- LAN type Ethernet Twisted Pair 802.3 10BaseT

- Connector RJ45

- Connection to LAN direct with a CAT5 Twisted Pair

- Protocol TCP/IP or IPoverOSI

BNC interface

- LAN type Ethernet thinnet 802.3 10Base2

- Connector BNC

- Connection to LAN RG58 coax. cable 50 Ohm

- Protocol TCP/IP or IPoverOSI

RS232 interface


- Asynchronous baud rate 9600, 19200, 38400, 57600

- Protocol PPP

LCT RS232 interface


- Asynchronous baud rate 9600, 19200, 38400, 57600

- Protocol PPP

LCT USB interface

- Electrical interface USB 1.1 version

- Baud rate 1.5 Mbit/s

- Protocol PPP

44 AL - MN.00107.E - 017

7.5 MODULATOR/DEMODULATOR

- Carrier modulating frequency

- Tx side 330 MHz

- Rx side 140 MHz

- Type of modulation 4QAM/16QAM/32QAM

- Type of coding BCM

- Modulating signal from 2 Mbit/s to 105 Mbit/s depending on different versions

- Spectrum shaping raised cosine (roll–off = 0.5)

- Equialization 5 taps

- Coding gain 2.5 dB at 10–6

1 dB at 10–3

7.6 CABLE INTERFACE

- Interconnection with the ODU unit single coaxial cable for both Tx and Rx

- Cable length up to 470 m. with 1/4” cable type for 4QAM modulationup to 370 m. with 1/4” cable type for 16/32QAMmodulation


- Signal running along the cable

- Tx nominal frequency 330 MHz

- Rx nominal frequency 140 MHz

- Transceiver management signals 388 kbit/s bidirectional

- Carrier for transceiver management signals IDU to ODU = 17.5 MHz/0 dBmODU to IDU = 5.5 MHz/0 dBm

- Remote power supply direct from battery voltage

7.7 AVAILABLE LOOPS

The following loop are available within the IDU:

• line tributary loop

• internal tributary loop

• baseband loop

• IDU loop.

AL - MN.00107.E - 017 45

8 DESCRIPTION OF THE INDOOR UNIT FOR 2, 8, 34 MBIT/S AND NX2 MBIT/S SIGNALS

Description that follows covers the following:

• 1+0/1+1 standard version

• 1+0 non expandable IDU.

8.1 1+0/1+1 STANDARD IDU VERSION

Description that follows is referring to LIM/CONTROLLER/RIM module the IDU consists of.

8.1.1 LIM

The LIM performs the following operations:

• multiplexing process of the input tributaries

• aggregation of the multiplexed signals along with services through a Bit Insertion circuit

• processing in digital form of the baseband part of the QAM modulator (the IF part of the QAM mod-ulator takes place within the RIM

• duplication of the digital processed signal to supply two RIMs in 1+1 versions. In the full duplicatedversion the changeover occurs at tributary level.

Different baseband structures and digital processing of the signal to be forwarded to the QAM modulator/demodulator is produced by a “chip set”. Controls to the chip set and status/alarm reporting from the chipset are given/received by main controller within the CONTROLLER module.

8.1.2 Circuit description

Tx side

Refer to Fig.25.

The 2/34 Mbit/s input signal is code converted from HDB3 to NRZ format before being multiplexed. Themultiplexing scheme depends on the number and the bit rate of the input tributaries.

Attached figures show different multiplexing scheme as follows:

• Fig.26 – 2/34 Mbit/s single tributary multiplexing . The mux performs stuffing operation and gen-erates a proprietary frame to be sent to the Bit Insertion. Opposite operation occurs at the Rx side.

• Fig.27 – 2x2 Mbit/s multiplexing. The mux performs stuffing operation on each single tributary andgenerates a proprietary frame embedding the two tributaries to be sent to the Bit Insertion. Oppo-site operation occurs at the Rx side.

46 AL - MN.00107.E - 017

• Fig.28 – 4x2 Mbit/s multiplexing. The mux aggregates the four 2 Mbit/s tributaries generating a8448 kbit/s frame as per Recc. G.742. The multiplexed signal is then sent to the Bit Insertion. Op-posite operation occurs at the Rx side.

• Fig.29 – 8x2 Mbit/s multiplexing. The eight 2 Mbit/s tributaries are grouped in two 4x2 Mbit/s groupseach of one generating a G742 frame structure at 8448 kbit/s to be sent to the next Bit Insertion.Opposite operation occurs at the Rx side.

• Fig.30 – 16x2 Mbit/s multiplexing. The sixteen 2 Mbit/s tributaries are grouped in four 4x2 Mbit/sgroups each of one generating a G.742 frame structure at 8448 kbit/s. A further multiplexing of theachieved four 8448 kbit/s streams will generate a frame structure at 34368 kbit/s as per Recc.G.751. This latter is to be sent to the Bit Insertion.The 2 Mbit/s wayside undergoes stuffing processbefore being sent to the Bit Insertion. Opposite operation occurs at the Rx side.

• Fig.31 – 32x2 Mbit/s multiplexing. This version consisted of two LIMs (master and slave) each ofone manipolating two 16x2 Mbit/s signals. Each of one will generate a 34368 kbit/s frame structureas per Recc. G.751.The two signals are sent to the Bit Insertion within the master LIM for aggregation and stuffing proc-ess. The 2 Mbit/s wayside undergoes stuffing process before being sent to the B.I. Opposite oper-ation occurs at the Rx side.

• Fig.32 – 2x34 Mbit/s multiplexing. The two 34368 kbit/s tributaries are directly sent to the Bit In-sertion for aggregation and stuffing process. Opposite situation occurs at the Rx side.

In addition to the tributary mux, an additional service mux is provided for aggregation of various servicesignals interfaced by Controller module.

The multiplexed tributary and service signals are then sent to the B.I. for aggregate frame generation oc-curring at the following bit rate depending on various versions implemented:

Tab.15 - Aggregate frame

The aggregate frame contains:

• the main signal from the MUX(s)

• the framed service signal from the service MUX

• the EOC signals for supervision message propagation towards the remote equipment

• the frame alignment word

• the bits dedicated to the FEC.

All the synch. signals to perform multiplexing (demultiplexing) and BI (BE) process are achieved from a x0at 38.88 MHz

The LIM also includes the processing in digital form (see Fig.25) of the modulating signal to be sent to themixers of the QAM modulator within the RIM.

The digital process includes:

• serial to parallel conversion

• differential encoding

• generation of the shaped modulating signals I and Q to be sent to each individual RIM.

Version Aggregate frame

2 Mbit/s 2430 kbit/s

2x2 Mbit/s 4860 kbit/s



16x2/34 Mbit/s 38880 kbit/s

32x2/2x34 Mbit/s 77760 kbit/s

AL - MN.00107.E - 017 47

Rx side

Refer to Fig.33.

From the two RIMs the LIM is receiving the I and Q analogue signals then digital converted for the followingprocessing:

• clock recovery

• frequency and phase carrier locking

• baseband equalisation and filtering

• bit polarity decision

• differential decoding

• parallel to serial convertion to recover the aggregate signal at the receive side.

The aggregate signal is then sent to a frame alignment circuit and CRC analysis and then to the error cor-rector. The errors uncorrected by the FEC are properly counted to achieve:

• BER extimate measurement

• radio performances

HBER/LBER/Early Warning Alarm roots for monitoring purpose and Rx switching operation are taken di-rectly from CRC circuit before FEC correction.

The Rx switching receives the two aggregate signals and performs signal selection under the control of alogic circuit according with Tab.16.

The changeover is error free and the system has built in capabilities of minimising the passed errors duringthe detection time, such as the early warning criteria. The hitless switching facility provides automatic syn-chronisation of the two incoming streams up to a dynamic difference of ± 7 bits; additionally, the switchingunit is also capable of compensating static delays between the two incoming streams of up to ±7 bits. Atthe output of the Rx switch the Bit Extraction separates the main signal from the services and then, aftera proper demultiplexing process as previously described, sends them to the output interface lines.

Tab.16 - Switching priority

Priority Levels Description

Highest|||||||||||||||||||||||||↓

Lowest

Priority 1 RIM PSU Alarm

Priority 2 Manual forcing (from main controller)

Priority 3 Cable Short Alarm

Priority 3 Cable Open Alarm

Priority 3 IF Unit Alarm

Priority 3 Demodulator Failure

Priority 3 Base Band Unit Failure Alarm

Priority 3 ODU Unit Failure

Priority 3 ODU PSU Alarm

Priority 3 VCO Failure Alarm

Priority 3 High BER >10–3 (or 10–4 or 10–5, selectable by software)

Priority 4 Low BER > 10–6 (or 10–7 or 10–8, selectable by software)

Priority 5Early Warning BER > 10–9 (or 10–10 or 10–11 or 10–12, select-

able by software)

Priority 6RF Input Low (Rx threshold SW selectable from –40 to –99

dBm)

Priority 7 CRC Pulse

Priority 8 Revertive Rx (branch one preferential)

48 AL - MN.00107.E - 017

8.1.3 RIM

Refer to Fig.34.

The RIM consists of the following main circuits:

• IF part of the QAM modulator

• IF part of the QAM demodulator

• power supply

• telemetry IDU/ODU

8.1.3.1 QAM modulator

I and Q signals from LIM are connected to a 4 or 16QAM programmable modulator. It consists of the fol-lowing circuits:

• recovery low pass filter to eliminate signal periodicity

• two mixers for carrier amplitude and phase modulation process

• 330 MHz local oscillator

• a 90° phase shifter to supply two mixers with two in quadrature carriers

• a combiner circuit to generate the QAM modulation

The thus obtained 330 MHz QAM modulated carrier is then sent to the cable interface for connection withODU.

8.1.3.2 QAM demodulator

At the receive side, from the cable interface, the 140 MHz QAM modulated carrier is sent to the QAM de-modulator passing through a cable equalizer circuit. The QAM demodulator within the RIM extracts the Iand Q signals to be sent to the digital part of the demodulator within the LIM.

8.1.3.3 Power supply

The –48 V battery voltage feeds the IDU and ODU circuitry. The service voltages for the IDU feeding areachieved through a DC/DC converter for +3.6 V generation and a step down circuit for –5V.

Both voltages are protected against overvoltages and overcurrents.

The power to the ODU is given by the same battery running through the interconnection cable.

An electronic breaker protects the battery against cable failure.

8.1.3.4 Telemetry IDU/ODU

The dialogue IDU/ODU is made–up by the main controller and associated peripherals within the ODU. Con-trols for ODU management and alarm reporting is performed making use of a bidirectional 388 kbit/sframed signals. The transport along the interconnecting cable is carried out via two FSK modulated carri-ers: 17.5 MHz from IDU to ODU; 5.5 MHz from ODU to IDU.

AL - MN.00107.E - 017 49

8.1.4 CONTROLLER

The controller module performs the following:

• interfaces the service signals

• houses the equipment software for equipment management

• interfaces the SCT/LCT program through supervision ports

• receive external alarms and route them to relay contacts along with the internal alarms generatedby the equipment.

Warning: lithium battery inside, refer to national rules for disposal.

8.1.4.1 Service signals

The controller offers an electrical interface to the following three service channel options:

• 9600 baud/V28 with digital party line or in alternative 2x4800 baud/V28 – 9600 baud V28/RS232synchronous/asynchronous channels

• 64 kbit/s/V11 codirectional or contradirectional

• 2 Mbit/s wayside G.703.

The service channels thus interfaced are then sent to the LIM for MUX/DEMUX processing.

8.1.4.2 Equipment software

Equipment software permits to control and manage all the equipment functionality. It is distributed on twohardware levels: main controller and ODU peripheral controllers.

The dialogue between main and peripheral controllers is shown in Fig.35.

Main controller

The activities executed by the main controller are the following:

• Communication management: it makes use of SNMP as management protocol and IP or IP over OSIas communication protocol stacks. See Fig.36 for details. The interface ports for the equipmentmanagement are the following:

- LAN Ethernet 10BaseT/10Base2 or AUI

- USB port for 1+0 version

- RS232 asynchronous used for SCT/LCT connection

- RS232 asynchronous used for connection to further NEs

- EOC embedded within the PDH radio frame for connection to the remote NEs

- EOC embedded within the 2 Mbit/s tributary G.704 frame.

• Log–in: the main controller manages the equipment or network login/logout by setting and thencontrolling the user’s ID and relevant password.

• Database (MIB): validation and storing in a non–volatile memory of the equipment configurationparameters.

• Equipment configuration: distribution of the parameters stored in the MIB towards the peripheralµPs for their attuation in addition to the controls from user not stored in the MIB (i.e. loops, manualforcing etc...).

• Alarm monitoring: acquisition, filtering and correlation of the alarms gathered from slaved µPs. Lo-cal logger and alarm sending to the connected managers: SCT/LCT – NMS5UX. Management of thealarm signalling on the LIM front panel.

50 AL - MN.00107.E - 017

• Performances: PM management as per Recc. G.828.

• Download: the main controller is equipped with two flash memory banks containing the running pro-gram (active bank) and the stand–by program (inactive bank). This permits to download a new soft-ware release to the inactive bank without distributing the traffic.Bank switch enables the new release to be used.Download activity is based on FTP protocol which downloads application programs, FPGA configu-ration, configuration files on main controller inactive bank or directly on the peripheral controllers.

Peripheral controllers

The peripheral controllers take place within the ODU and are slaved to main controller with the task of ac-tivating controls and alarm reporting of dedicated functionality.

8.1.4.3 Supervision ports

The equipment managemnt is made by SCT/LCT program through the supervision ports.

The following are made available:

• LCT/RS232 interface ports using PPP protocol and baud rate speed up to 57600

• LAN interface using IP or IPoverOSI protocols

• EOC (Embedded Overhead Channel) using a 64 kbit/s slot of the radio frame to broadcast the su-pervision messages towards the remote terminals. The protocol used is IP or IPoverOSI.

8.2 IDU LOOPS

To control the IDU correct operation a set of local and remote loops are made available. The commandsare forwarded by the LCT/SCT program. Loop block diagram is shown by Fig.37.

8.2.1 Tributary loop

Tributary local loop

Each input tributary is routed directly to the trib. output upon receiving the command from the LCT. TheTx line transmission is still on.

Tributary remote loop

Each tributary directed towards the Rx output line is routed back to the Tx line. The Rx line is still on.

8.2.2 Baseband unit loop

This kind of loop is only local and is activated at BI/BE level. The Tx line is still on.

AL - MN.00107.E - 017 51

8.2.3 IDU loop

This kind of loop permits to check the full IDU operation. When activated, the modulator output is connect-ed to demodulator input. The loop is assured by converting the frequency of the modulator from 330 MHzto 140 MHz.

Fig.25 - LIM block diagram – Tx side

Code

conve

rter

Code

conve

rter

Code

conve

rter

MU

X

2/2

x2/4

x28x2

/16x2

32x2

/2x3

4se

eFi

g.2

3

th

rough

Fig.2

9

Ser

vice

ch

annel

m

odule

Contr

olle

r m

odule

BI:

- m

ain t

raffic

- se

rvic

es-

EO

C-

FEC

- FA

W

Fram

egen

erat

or

Dig

ital

MO

D-

S/P

conve

rtio

n-

diff. e

nco

din

g-

modula

ting

signal

gen

erat

ion

X0 3

8.8

8 M

Hz

D/A

D/A

to R

IM2

to R

IM1

I&Q

I&Q

synch

r.

2/3

4 M

bit/s

G.7

03

nx2 . . .

nx3

4

2 M

bit/s

way

side

serv

ices

only

(16x2

/34 o

r hig

her

spee

dNRZ

CK

NRZ

CK

NRZ

CK

- FS

K m

od/d

emod

- 388 fra

me

gen

erat

or/

rece

iver

to/f

rom

mai

n

contr

olle

r

52 AL - MN.00107.E - 017

Fig.26 - Single tributary multiplexing/demultiplexing

Fig.27 - 2x2 Mbit/s multiplexing/demultiplexing


MUX proprietary

frameB.I.

DEMUX proprietary

frameB.E.

Ck

Ck

Tx data

Rx data

2/34 Mbit/s

2/34 Mbit/s

Aggregate Ck

MUX proprietary

frameB.I.

DEMUX proprietary

frameB.E.

Ck

Ck

Tx data

Rx data

2x2 Mbit/s

2x2 Mbit/s

Aggregate Ck

MUX 2 ->8G.742

B.I.

DEMUX 2 ->8G.742

B.E.

Ck

Ck

Framed data 8448 Tx

Framed data 8448 Rx

4x2 Mbit/s

4x2 Mbit/s

Aggregate Ck

AL - MN.00107.E - 017 53


MUX 2 ->8G.742

B.I.

DEMUX 8 -> 2G.742

B.E.

Ck 8448 kHz Tx

4x2 Mbit/s

4x2 Mbit/s

Aggregate Ck

MUX 2 ->8G.742

Framed data 8448 Tx

4x2 Mbit/s

DEMUX 8 -> 2G.742

4x2 Mbit/s

Framed data 8448 Rx

Ck

Data

Data

Data

54 AL - MN.00107.E - 017


MUX2 ->8G.742

B.I.

4x2 Mbit/s

Aggregate Ck

MUX2 ->8G.742

4x2 Mbit/s

MUX2 ->8G.742

4x2 Mbit/s

MUX2 ->8G.742

4x2 Mbit/sMUX 8->34G.751

Ck 8448 kHz Tx

Framed data 8448 kbit/s Tx

Framed data 34368 kbit/s

Ck 34368 kHz Tx

DEMUX8 ->2G.742

B.E.

4x2 Mbit/s

Aggregate Ck

DEMUX8 ->2G.742

4x2 Mbit/s

DEMUX8 ->2G.742

4x2 Mbit/s

DEMUX8 ->2G.742


Ck 8448 kHz



Ck 34368 kHz

Destuffing2 Mbit/s wayside

Stuffing2 Mbit/s wayside

AL - MN.00107.E - 017 55

Fig.31 - 32x2 multiplexing/demultiplexing

Fig.32 - Multiplexing/demultiplexing 2x34 Mbit/s

Mux 2->8Demux 8->2

MuxDemux8->3434->8 BI/BE

8448 k

8448 k

8448 k

8448 k

34368 k 77600 kbit/s

LIM Master

Aggregate Ck

MuxDemux8->3434->8

8448 k

8448 k

8448 k

8448 k

34368 k

LIM Slave

2 M

bit/s

inte

rfac

e2 M

bit/s

inte

rfac

e1 set of 16x2 Mbit/s

2 set of 16x2 Mbit/s

Mux 2->8Demux 8->2

Mux 2->8Demux 8->2

Mux 2->8Demux 8->2

Mux 2->8Demux 8->2

Mux 2->8Demux 8->2

Mux 2->8Demux 8->2

Mux 2->8Demux 8->2

BI/BE77600 kbit/s

34368 k

34368 k

Aggregate Ck

56 AL - MN.00107.E - 017

Fig.33 - LIM block diagram – Rx side

A

D-

Ck

reco

very

- Car

rier

lock

- Equal

iz.

& filt

.-

Dec

isio

n

- D

iff. d

ecod.

- S/P

CRC

anal

ysis

& a

ligner

FEC

- BER e

xtim

ates

- H

igh B

ER

- Lo

w B

ER

- EW

SW

lo

gic

from

m

ain

µP

switch

co

ntr

ols

sam

e as

ab

ove

I&Q

fr

om

RIM

1

I&Q

fro

m

RIM

2

BE

DEM

UX

2/2

x2/4

x28x2

/16x2

32x2

/2x3

4See

Fig.2

3

th

rough

Fig.

29

Ser

vice

chan

nel

DEM

UX

Code

conve

rter

Code

conve

rter

Code

conve

rter

Contr

olle

r m

odule

2/3

4 M

bit/s

G.7

03

nx2

or

nx3

4 M

bit/s

Ser

vice

s

BER m

eas.

P.M

.

AL - MN.00107.E - 017 57

Fig.34 - RIM block diagram

Cab

le

inte

rfac

e

Ove

rcurr

ent

pro

tect

.

Rem

ote

pow

er s

upply

5.5

MH

z

QAM

MO

D(I

F par

t)

330 M

Hz

DC

DC

from

LIM

I&Q

bat

tery

-4

8 V

I/V

pro

tect

Ste

p

dow

n

+3.6

V

-5 V

Cab

le

equal

iz.

DEM

QAM

(IF

par

t)

I&Q

to L

IM

17.5

MH

zfr

om

LIM

to L

IM

58 AL - MN.00107.E - 017

Fig.35 - Main and peripheral controller connection

Mai

n c

ontr

olle

r

338 k

b/s

388 k

bit/s

LAN

RS232

LCT

Use

r In

Ala

rm/

Use

r O

ut

FSK

modem

FSK

modem O

DU

2

388 k

b/s

388 k

bit/s

FSK

modem

FSK

modem O

DU

1

EO

C

388 k

bit/s

gen

erat

or

rece

iver

388 k

bit/s

gen

erat

or

rece

iver

gen

/rec

.Pe

ripher

alco

ntr

olle

rPe

ripher

alco

ntr

olle

rgen

/rec

.

AL - MN.00107.E - 017 59

Fig.36 - IP/IPoverOSI protocol stack

APPLICATION SOFTWARE

SNMP

TCP/UDP

IPIPoverOSI

IS-ISISO 10589

PPP PPPLLCMAC

LAPDQ921

LCCMAC

RS232 EOCEthernet

LAN EOCEthernet

LAN

Applic./present.session layers

Transportlayer

Routinglayer

Data linklayer

Physicallayer

60 AL - MN.00107.E - 017

Fig.37 - IDU loopback

330 M

Hz

to O

DU

MU

X

BB loop

Trib

. lo

c. loop

Trib

. IN

DEM

UX

BI

BE

MO

D

330 1

40

IDU

loop

140 M

Hz

from

OD

U

Trib

. O

UT

Trib

. re

m.

loop

DEM

LIM

RIM

AL - MN.00107.E - 017 61

9 DESCRIPTION OF THE INDOOR UNIT IDU PLUS FOR NX2MBIT/S STREAMS HIERARCHIC AND NOT HIERARCHIC

9.1 GENERAL

The indoor unit IDU Plus is housed into a 1 Rack Unit (1RU) or 2 Rack Unit (2RU) and can have the followingconfigurations:

• terminal

• drop-insert

• nodal.

Radio side stream has a PDH structure NxE1 but user interface can be NxE1 or SDH STM-1 partially filled.

Modulation and capacity are programmable. Other characteristics are:

• hierarchic stransport up to 32E1

• not hierarchic transport up to 53E1

• tributaries: E1 (2 Mbit/s), STM1, Ethernet

• managing up to 4 directions with drop-insert and cross-connection capability of 2 Mbit/s streams

• combined IDU plus can create a nodal system to interface up to 12 radios (ODU)

• path protection for E1 streams with drop-insert configuration

• dynamic modulation with automatic switch from 16QAM to 4QAM and viceversa, based on BER and/or on the RX signal power

• internal PRBS generator and receiver on a E1 streams

• local Tx switch managed by Rx alarms on remote equipment

• modulation 4QAM, 16QAM, 32QAM

9.2 COMPOSITION OF TERMINAL 1RU

For 1RU composition see Fig.38:

1 LIM 32E1 or LIM STM1+16E1

2 equipment controller

3 RIM

4 cover or second RIM in 1+1 configuration

Fig.38 - IDU + 1RU composition

1 3

2 4

62 AL - MN.00107.E - 017

9.3 COMPOSITION OF TERMINAL 2RU

For 2RU composition see Fig.39:


2 LIM 32E1 o LIM STM1+16E1

3 expansion 53E1

4 cover

5 RIM


7 cover or third RIM in 4x(1+0) configuration

8 cover or fourth RIM in 4x(1+0) configuration

Fig.39 - IDU + 2RU composition

9.4 1RU TERMINAL

With 1 Rack Unit it is possible to configure a 1+0 or 1+1 terminal and to manage up to 32E1 tributarieswith LIM32E1 or up to 53x2Mbit/s streams with LIM STM1+16E1 (16 are physical 2 Mbit/s other 37 arebuilt in STM1 stream). Capacity and configuration are listed in Tab.17.

Tab.17 - IDU Plus possible terminal configurations

1 5

2 6

3 7

4 8

Capacity Modulation Spectrum use Size


4QAM16QAM16QAM

3,5 MHz 1RU


4QAM4QAM16QAM16QAM

7 MHz 1RU


4QAM4QAM16QAM16QAM

14 MHz 1RU


4QAM4QAM16QAM

28 MHz 1RU

42x2 Mbit/s53x2 Mbit/s

16QAM32QAM

28 MHz 1RU or 2RU

AL - MN.00107.E - 017 63

9.5 2RU TERMINAL

With 2 unit IDU Plus it is possible to manage up to 53 tributaries E1 with the following configurations:

• terminal 1+0

• terminal 1+1

• terminal 2x (1+0)

Capacity and configuration are listed in Tab.17.

9.6 2 Mbit/s TRIBUTARY INTERFACE

The 2 Mbit/s tributary interface is 75 Ohm or 120 Ohm. Both interfaces are present into the front panelconnectors the user can select the interface to use, preparing in the correct way the relevant cabling.

9.7 TERMINAL STM1+16E1 (1RU and 2RU)

A different LIM version provides 16x2 Mbit/s interfaces and one SDH STM1 port. STM1 port is protected bytwo STM1 interfaces that can be available electrical or optical (different 2 plug-in modules).

STM1 is terminated and the contained E1 streams are sent to switch matrix built in the LIM, where E1streams can be redirected towards radio link, towards 2 Mbit/s interface or remapped into STM-1. IDU Plusis operating in MST mode and has a complete SETS synchronisation circuit with input and output synchro-nisation signals.

Maximum capacity of LIM STM1+16E1 is:

• 53E1 for terminal 1+0

• 53E1 for terminal 1+1

• 79E1 for terminal 2x(1+0).

64 AL - MN.00107.E - 017

Fig.40 - IDU Plus 2RU drop/insert and nodal structure

9.8 DROP-INSERT (2RU)

For 2RU subrack composition see Fig.39:


2 processor 53E1

3 matrix 32E1 or matrix node STM1+16E1

4 processor 53E1

5 RIM


ODU1A ODU2A

RIM1A RIM2A

Processor A

LIM A

53E1 53E1

ODU1B ODU2B

RIM1B RIM2B

Processor B

LIM B

53E1 53E1

Back Plane

Matrix with32E1 front panel

Matrix withSTM1 front panel

32E1

21E1

Exp53E1

21E1STM1 STM1

16E1NBUS

NBUS

Two redundant STM1 interfaces

or

AL - MN.00107.E - 017 65

7 cover or third RIM in 4x(1+0) configuration

8 cover or fourth RIM in 4x(1+0) configuration.

With drop-insert configuration (only into 2RU) it is possible to manage up to 4 directions radio (full capac-ity) with the possibility to drop-insert freely the 2 Mbit/s streams arriving from the 4 directions and fromfront panel according the capacity of the switch matrix (32E1 or STM1+16E1).

For example with 32E1 the maximum drop-insert possibilities is 32 tributaries but total capacity is limitedby total capacity of 4 directions. If total capacity of 4 directions is less then 32E1 that is the drop-insertlimit. The LIM STM1+16E1 has a minimum drop-insert capacity 63E1 streams built in the STM1 frame plus16E1 interfaces for a total of 79 E1, each 2 Mbit/s tributary can be sent in any of 4 directions.

Maximum capacity arriving from the 4 radios is with 4 link at 53E1 for a total of 212 E1. For any configu-ration the switch matrix is no blocking. A repeater can be done without activating local E1 ports.

9.9 NODAL (UP TO 3X2RU)

Composition of nodal is similar to drop-insert (see Fig.39):


2 processor 53E1

3 matrix 32E1 or matrix node STM1+16E1

4 processor 53E1

5 RIM

6 cover or RIM

7 cover or RIM

8 cover or RIM

A node can be made up of up to 3 subracks of 2RU so that we can have up to 12 maximum independentdirections.

On front panel of matrix STM1+16E1 there are two ports “NBUS” (1 and 2) which should be connected tothe other two 2RU racks as in Fig.41.

Fig.41 - Nodal connections

Subracks are connected with cables CAT7 quality (SIAE code F03471) to be inserted on front panel at NBUScable.

Each NBUS port is able to transfer 126 tributaries E1 (2xSTM1) from one rack to another with many pos-sible cross-connections on all 12 directions of the node and front panel STM1+16E1.

2RU

2RU 2RU

NBUS1

NBUS1 NBUS1

NBUS2

NBUS2NBUS2

66 AL - MN.00107.E - 017

9.10 LIM

The LIM performs the following operations:




• duplication of the digital processed signal to supply two RIMs in 1+1 versions. In the full duplicatedversion the changeover occurs at tributary level.


9.11 CIRCUIT DESCRIPTION

Tx side

Refer to Fig.42.

The 2 Mbit/s input signal is code converted from HDB3 to NRZ format before being multiplexed. The mul-tiplexing scheme depends on the number and the bit rate of the input tributaries.

In addition to the tributary mux, an additional service mux is provided for aggregation of various servicesignals interfaced by Equipment Controller module.

The multiplexed tributary and service signals are then sent to the B.I. for aggregate frame generation oc-curring at the bit rate depending on various versions implemented.







All the synch. signals to perform multiplexing (demultiplexing) and BI (BE) process are achieved from a x0at 48 MHz






Rx side

Refer to Fig.43.


• clock recovery

AL - MN.00107.E - 017 67











The changeover is hitless and the system has built in capabilities of minimising the passed errors duringthe detection time, such as the early warning criteria. The hitless switching facility provides automatic syn-chronisation of the two incoming streams up to a dynamic difference of ± 7 bits; additionally, the switchingunit is also capable of compensating static delays between the two incoming streams of up to ±7 bits. Atthe output of the Rx switch the Bit Extraction separates the main signal from the services and then, aftera proper demultiplexing process as previously described, sends them to the output interface lines.



Highest|||||||||||||||||||||||||↓

Lowest














able by software)


dBm)



68 AL - MN.00107.E - 017

9.12 RIM

Refer to Fig.44.




• power supply


There are two types of RIM according to modulation capability:

• 4QAM/16QAM or

• 4QAM/16QAM/32QAM

Inside the RIM, behind the front panel, the is a fuse for protection to whole IDU. It is a soldering type fuse.

9.12.1 QAM modulator

I and Q signals from LIM are connected to a 4/16/32QAM programmable modulator. It consists of the fol-lowing circuits:







9.12.2 QAM demodulator


9.12.3 Power supply



The power to the ODU is given by the same battery running through the interconnection cable.

An electronic breaker protects the battery against cable failure.

AL - MN.00107.E - 017 69

9.12.4 Telemetry IDU/ODU


9.13 EQUIPMENT CONTROLLER

The Equipment Controller module performs the following:






9.13.1 Service signals

The Equipment Controller offers an electrical interface to the following three service channel options:





9.13.2 Equipment software



Main controller







70 AL - MN.00107.E - 017











9.13.3 Supervision ports



• LCT USB interface port PPP protocol and baud rate speed up to 230000

• RS232 interface ports using PPP protocol and baud rate speed up to 57600

• 2xLAN interface using IP or IPoverOSI protocols; two LAN interfaces are connected with a “all-pass”switch


9.14 IDU LOOPS


AL - MN.00107.E - 017 71








9.14.3 IDU loop


9.15 EXPANSION 53E1

This board can be used in a 2RU in position 3 together with LIM 32E1 to provide the interfaces necessaryto connect up to 53E1.

9.16 SERVICE CHANNEL ADAPTER

This board can be used in a 2RU in position 3 together with LIM 32E1.

This board gives the interface to service channels CH1 and CH2 plus 2 Mbit/s wayside channel. To be usedwhen there are no matrix and no expansion 53E1.

9.17 PROCESSOR 53E1

The 53E1 processor has the same functionnality of LIM but doesn’t have the front panel connector becauseall 53E1 are sent to Matrix.

72 AL - MN.00107.E - 017

Fig.42 - LIM block diagram - Tx side

Code

conve

rter

Code

conve

rter

Code

conve

rter

MU

X

2x2

/4x2

8x2

/16x2

32x2

/5x2

10x2

/21x2

42x2

/53x2

Mbit/s

Ser

vice

ch

annel

m

odule

Contr

olle

r m

odule

BI:

- m

ain t

raffic

- se

rvic

es-

EO

C-

FEC

- FA

W

Fram

egen

erat

or

Dig

ital

MO

D-

S/P

conve

rtio

n-

diff. e

nco

din

g-

modula

ting

signal

gen

erat

ion

X0 4

8 M

Hz

D/A

D/A

to R

IM2

to R

IM1

I&Q

I&Q

synch

r.

2/3

4 M

bit/s

G.7

03

nx2 . . .

nx3

4

2 M

bit/s

way

side

serv

ices

only

(16x2

or

hig

her

spee

dNRZ

CK

NRZ

CK

NRZ

CK

- FS

K m

od/d

emod

- 388 fra

me

gen

erat

or/

rece

iver

to/f

rom

mai

n

contr

olle

r

AL - MN.00107.E - 017 73

Fig.43 - LIM block diagram - Rx side

A

D-

Ck

reco

very

- Car

rier

lock

- Equal

iz.

& filt

.-

Dec

isio

n

- D

iff. d

ecod.

- S/P

CRC

anal

ysis

& a

ligner

FEC

- BER e

xtim

ates

- H

igh B

ER

- Lo

w B

ER

- EW

SW

lo

gic

from

m

ain

µP

switch

co

ntr

ols

sam

e as

ab

ove

I&Q

fr

om

RIM

1

I&Q

fro

m

RIM

2

BE

DEM

UX

2x2

/4x2

8x2

/16x2

32x2

/5x2

10x2

/21x2

42x2

/53x2

Mbit/s

Ser

vice

chan

nel

DEM

UX

Code

conve

rter

Code

conve

rter

Code

conve

rter

Contr

olle

r m

odule

2 M

bit/s

G.7

03

nx2

Mbit/s

Ser

vice

s

BER m

eas.

P.M

.

74 AL - MN.00107.E - 017


Cab

le

inte

rfac

e

Ove

rcurr

ent

pro

tect

.

Rem

ote

pow

er s

upply

5.5

MH

z

QAM

MO

D(I

F par

t)

330 M

Hz

DC

DC

from

LIM

I&Q

bat

tery

-4

8 V

I/V

pro

tect

Ste

p

dow

n

+3.6

V

-5 V

Cab

le

equal

iz.

DEM

QAM

(IF

par

t)

I&Q

to L

IM

17.5

MH

zfr

om

LIM

to L

IM

AL - MN.00107.E - 017 75



Mai

n c

ontr

olle

r

338 k

b/s

388 k

bit/s

LAN

RS232

LCT

Use

r In

Ala

rm/

Use

r O

ut

FSK

modem

FSK

modem O

DU

2

388 k

b/s

388 k

bit/s

FSK

modem

FSK

modem O

DU

1

EO

C

388 k

bit/s

gen

erat

or

rece

iver

388 k

bit/s

gen

erat

or

rece

iver

gen

/rec

.Pe

ripher

alco

ntr

olle

rPe

ripher

alco

ntr

olle

rgen

/rec

.

USB


SNMP

TCP/UDP

IPIPoverOSI

IS-ISISO 10589

PPP PPPLLCMAC

LAPDQ921

LCCMAC

RS232 EOCEthernet

LAN EOCEthernet

LAN


Transportlayer

Routinglayer

Data linklayer

Physicallayer

76 AL - MN.00107.E - 017


330 M

Hz

to O

DU

MU

X

BB loop

Trib

. lo

c. loop

Trib

. IN

DEM

UX

BI

BE

MO

D

330 1

40

IDU

loop

140 M

Hz

from

OD

U

Trib

. O

UT

Trib

. re

m.

loop

DEM

LIM

RIM

AL - MN.00107.E - 017 77

10 DESCRIPTION OF THE INDOOR UNIT FOR 2 MBIT/S AND ETHERNET SIGNALS

Description that follows covers indoor unit with Ethernet ports. Paragraph 10.1.1 LIM Ethernet/2 Mbit/s for2 Mbit/s signals deals with 2 Mbit/s.

Signal treatment and paragraph 10.1.3 LIM Ethernet/2 Mbit/s for Ethernet signals deals with Ethernet sig-nal treatment.

In the place of LIM module it is possible to insert the LIM Ethernet/2 Mbit/s module. LIM Ethernet/2 Mbit/s contains all the circuits of LIM with 2 Mbit/s interfaces plus some specific circuits for Ethernet interface.

10.1 1+0/1+1 STANDARD IDU VERSION WITH ETHERNET INTER-FACE

Description that follows is referring to LIM/CONTROLLER/RIM modules contained into IDU.

10.1.1 LIM Ethernet/2 Mbit/s for 2 Mbit/s signals

The LIM Ethernet/2 Mbit/s performs the following operations:




• duplication of the digital processed signal to supply two RIMs in 1+1 versions. In the full duplicatedversion the changeover occurs at tributary level

• concatenation of 2 Mbit/s streams

• switching between a local LAN port and a remote LAN port.


10.1.2 Circuit description

Tx side

Refer to Fig.48.

The 2/34 Mbit/s input signal is code converted from HDB3 to NRZ format before being multiplexed. Themultiplexing scheme depends on the number and the bit rate of the input tributaries.

Attached figures show different multiplexing scheme as follows:

78 AL - MN.00107.E - 017

• Fig.49 – 2/34 Mbit/s single tributary multiplexing . The mux performs stuffing operation and gen-erates a proprietary frame to be sent to the Bit Insertion. Opposite operation occurs at the Rx side.

• Fig.50 – 2x2 Mbit/s multiplexing. The mux performs stuffing operation on each single tributary andgenerates a proprietary frame embedding the two tributaries to be sent to the Bit Insertion. Oppo-site operation occurs at the Rx side.

• Fig.51 – 4x2 Mbit/s multiplexing. The mux aggregates the four 2 Mbit/s tributaries generating a8448 kbit/s frame as per Recc. G.742. The multiplexed signal is then sent to the Bit Insertion. Op-posite operation occurs at the Rx side.

• Fig.52 – 8x2 Mbit/s multiplexing. The eight 2 Mbit/s tributaries are grouped in two 4x2 Mbit/s groupseach of one generating a G742 frame structure at 8448 kbit/s to be sent to the next Bit Insertion.Opposite operation occurs at the Rx side.

• Fig.53 – 16x2 Mbit/s multiplexing. The sixteen 2 Mbit/s tributaries are grouped in four 4x2 Mbit/sgroups each of one generating a G.742 frame structure at 8448 kbit/s. A further multiplexing of theachieved four 8448 kbit/s streams will generate a frame structure at 34368 kbit/s as per Recc.G.751. This latter is to be sent to the Bit Insertion.The 2 Mbit/s wayside undergoes stuffing processbefore being sent to the Bit Insertion. Opposite operation occurs at the Rx side.

• 32x2 Mbit/s multiplexing. This version consisted of two multiplexers of 16x2 Mbit/s signals. Each ofone will generate a 34368 kbit/s frame structure as per Recc. G.751.The two signals are sent to the Bit Insertion within the LIM for aggregation and stuffing process.The 2 Mbit/s wayside undergoes stuffing process before being sent to the B.I.Opposite operation occurs at the Rx side.

In addition to the tributary mux, an additional service mux is provided for aggregation of various servicesignals interfaced by Controller module.

The multiplexed tributary and service signals are then sent to the B.I. for aggregate frame generation oc-curring at the following bit rate depending on various versions implemented:

Tab.19 - Aggregate frame







All the synch. signals to perform multiplexing (demultiplexing) and BI (BE) process are achieved from a x0at 38.88 MHz






Version Aggregate frame








AL - MN.00107.E - 017 79

Rx side

Refer to Fig.55.


• clock recovery











The changeover is error free and the system has built in capabilities of minimising the passed errors duringthe detection time, such as the early warning criteria. The hitless switching facility provides automatic syn-chronisation of the two incoming streams up to a dynamic difference of ± 7 bits; additionally, the switchingunit is also capable of compensating static delays between the two incoming streams of up to ±7 bits. Atthe output of the Rx switch the Bit Extraction separates the main signal from the services and then, aftera proper demultiplexing process as previously described, sends them to the output interface lines.



Highest|||||||||||||||||||||||||↓

Lowest














able by software)


dBm)



80 AL - MN.00107.E - 017

10.1.3 LIM Ethernet/2 Mbit/s for Ethernet signals

In the place of LIM module it is possible to insert the LIM Ethernet/2 Mbit/s Module. LIM Ethernet/2 Mbit/s contains all the circuits of LIM with 2 Mbit/s interfaces plus some specific circuits for Ethernet interface.In the following Ethernet interface circuits are described.

For the description of all the other circuits relative to 2 Mbit/s interface and the structure of LIM pleaserefer to previous prargraph. LIM Ethernet is equipped with the following interfaces:

• 3x electrical interface Ethernet 10/100 BaseT IEEE 802.3

• from 0 to 4x2 Mbit/s (E1) interface

• total capacity from 2 to 64 Mbit/s

Most important functions of LIM Ethernet are:

• multiplexing of 2 Mbit/s tributaries

• concatenation of 2 Mbit/s streams

• LAPS Link Access Procedure SDH (ITU X.86) for concatenated 2 Mbit/s

• bridge/switch between a local LAN port and the radio LAN port

• MAC switching

• MAC address learning

• MAC address ageing

• Ethernet interface with autonegotiation 10/100, full duplex, half duplex

- Ethernet interface with Flow Control, Back Pressure, MDI/MDX crossover

• network segmentation into bridge

• virtual LAN as per IEEE 802.1q (anyone from 0 to 4095 VID for a maximum of 64 memory location)(see Fig.61)

• layer 2 QoS, priority management as per IEEE 802.1p (see Fig.61)

• layer 3 ToS/DSCP (see Fig.64)

• packet forwarding

A block diagram of LIM Ethernet module can be found into Fig.60.

Into LIM Ethernet there is a “switch” with 3 external ports and 1internal ports. External ports are electricalEthernet 10/100BaseT interfaces placed on the front panel. Internal port is connected to radio side stream.

Ethernet traffic coming from external ports goes to internal port radio side. The radio side port is connectedto one or two streams group of concatenated 2 Mbit/s. One stream for capacity up to 16x2 Mbit/s and twostreams for capacity of 12 – 16 2 Mbit/s streams, plus other 16x2 Mbit/s streams in case of maximumcapacity.

The concatenated 2 Mbit/s are assembled in a protocol called LAPS similar to HDLC.

In Tx side Ethernet traffic is packet into a protocol called LAPS similar to HDLC. The resulting stream isdivided into the used number of 2 Mbit/s streams. The 2 Mbit/s streams are then multiplexed, like intostandard LIM, together with 2 Mbit/s arriving from front panel, the resulting stream goes to the modulator,see Fig.49, Fig.50, Fig.51, Fig.52, Fig.53 e Fig.60.

In Rx the stream arriving from the demodulator is divided into the 2 Mbit/s streams, like into standard LIM,then the 2 Mbit/s not used into the front panel 2 Mbit/s are concatenated and sent to Ethernet circuits.Resulting stream, after LAPS protocol control, is sent to switch internal port.

10.1.3.1 2 Mbit/s tributaries

LIM Ethernet module uses the 16x2 Mbit/s mode of AL radio link. Tributary channels at 2 Mbit/s (E1) areconnected to 8 coaxial connectors 1.0/2.3 into front panel. 2 Mbit/s streams are multiplexed as into stand-ard LIM see Fig.49, Fig.50, Fig.51, Fig.52, Fig.53.

From 0 to 4 2 Mbit/s tributaries can be selected to be used via SCT/LCT program, all the other available 2Mbit/s are sent to switch internal port.

AL - MN.00107.E - 017 81

For 100 Mbit/s version can be selected up to 2 tributaries, position number 3 and 4 in tributary connectorsare available for wayside connection (2 Mbit/s each).

10.1.3.2 Electrical Ethernet interface

The electrical Ethernet/Fast Ethernet interfaces are type IEEE 802.3 10/100BaseT with RJ45 connector. Forinput or output signals at RJ45 please refer to chapter 15 USER CONNECTIONS. Cable can be UTP (Un-shielded Twisted Pair) or STP (Shielded Twisted Pair) Category 5.

Standard coding:

• Ethernet 10 Mbit/s: Manchester

• Fast Ethernet 100 Mbit/s: MLT–3 ternary

EMC/EMI protection:

• input and output pins are galvanically isolated through a transformer

• to reduce EMI every pin at RJ45 connector is terminated even if not used

• two signal lines are equipped with low capacity secondary protection to sustain residuals of possibleelectrostatic discharges (ESD).With LCT/SCT program it is possible to activate autonegotiation (speed/duplex/flow control) on 10/100BaseT interface.

10.1.3.3 Front panel LEDs

On FEM front panel there are a total of 6 Leds. There are 2 Leds for any Ethernet interface:

• DUPLEX: color green, On = full duplex, OFF = half duplex

• LINK/ACT: color green, ON = link up without activity, OFF = link down, BLINKING = link with activityon Rx and Tx.

10.1.3.4 Bridge/switch function

A radio link AL equipped witha LIM/Ethernet module can operate like a bridge/switch between two or moreseparated LANs with the following advantags:

• to connect two separated LANs at a distance even greater than the maximum limits of 2.5 km (forEthernet)

• to connect two LANs via radio within a complex digital network

• to keep separated the traffic into two LANs towards MAC filtering to get a total traffic greater thantraffic in a single LAN.

The bridge realized into LIM/Ethernet module is a transparent bridge (IEEE 802.1 part D) into the sameVlan described by VLAN Configuration Table.

The bridge works at data link level, Layer 2 of OSI pile, and leave untouched Layer 3.

The bridge takes care to sendo traffic from a local LAN, to remote LAN.. Routing is only on the basic ofLevel 2 addresses, sublevel MAC.

The operation of bridge is the following:

• when a bridge interface receives a MAC frame, the bridge on the basis of destination address, de-cides which LAN to send it

• if destination address is on originating LAN the frame is descarded

• if destination address is a known address (towards address learning procedure) and is present intolocal address table the frame is sent only on destintion LAN (MAC switching)

• otherwise the frame is sent to all ports with the same VLAN ID (flooding).

82 AL - MN.00107.E - 017

A bridge is very different from a repeater, which copies slavishly everything that receives from a line onall the others. The bridge, in fact, acquires a frame, analyzes it, reconstruct it and routes it. The bridgecompensates also the different speeds of the interfaces, therefore an input can be at 100 Mbit/s and outputat 10 Mbit/s.

The mechanism is the following:

• from the moment of its activation, the bridge examines all the frames that arrive it from differentLANs, and on these basis it builds its routing tables progressively.In fact, every received frame allows the bridge to know on what LAN the sending station is located(MAC address learning).

• every frame that arrives to the bridge is rebroadcasted:

- if the bridge has the destination address into the routing table, sends the frame only into thecorresponding LAN

- otherwise the frame is sent to all the LANs except the originating (flooding)

- as soon as the bridge increases its knowledge of different machines, the retransmission becomesmore and more selective (and therefore more efficient)

• the routing tables are updated every some minutes (programmable), removing addresses not alivein the last period (so, if a machine is moved, within a few minute it is addressed correctly) (MACaddress ageing).

The whole process of bridging is restricted to the ports which are members of the same Vlan as describedinto Vlan Configuration Table.

10.1.3.5 Ethernet Full Duplex function

The first realizations of the Ethernet network were on coaxial cable with the 10Base5 standard.

According to this standard Ethernet interfaces (e.g. PC) are connected to the coaxial cable in parallel andare normally in receiving mode. Only one PC, at a certain time, transmits on the cable, the others are re-ceiving, so this is half duplex mode, and only one PC uses the recived message.

Then the coaxial cable was progressively replaced by the pairs cable Unshielded Twisted Pair (UTP) as per10BaseT standard. Normally there are four pairs into UTP Cat5 cable but two pairs are used with 10BaseT,one for Tx one for Rx. Into 10Base5 and 10BaseT standards, network protocols are the same the differencelays into the electrical interface. UTP cable is connected point to point betwen a hub and a Ethernet inter-face. Network structure is a star where the server is connected to a hub and from this a UTP cable is laiddown for each Ethernet interface starts.

The further step is to replace the hub with a more powerful equipment, e.g. a switch. In this case it ispossible to activate transmission on both pairs at the same time, on one twisted pair for one direction, onthe other pair for opposite direction. Thus we obtain full duplex transmission on UTP.

Activating full duplex transmission it is possible to obtain a theoretical increase of performance of nearly100%. Full duplex mode can be activated into 10/100BaseT interfaces manually or with autonegotiation100BaseFx operates always into full duplex mode.

10.1.3.6 Link Loss Forwarding

Link Loss Forwarding (LLF) is an alarm status of ethernet interface.

LLF can be enabled or disabled. If LLF is enabled an US radio alarm condition will generate the alarm statusof Ethernet interface blocking any transmission to it. LLF can be enabled for each 3 ports at front panel.With LLF enabled the equipment connected (routers, switches so on) can be notified that radio link is notavailable and can temporarerly reroute the traffic.

10.1.3.7 MDI/MDIX cross–over

The Ethernet electrical interface into FEM module can be defined by SCT program as MDI or MDIX to cross–over between pairs so that external cross–over cable is not required.

AL - MN.00107.E - 017 83

10.1.3.8 VLAN functionality

LIM Ethernet module works with IEEE 802.1q and 802.1p tag for VLANs and QoS see Fig.61.

The virtual LAN (VLAN) are logical separated subnets so that all the stations, into VLAN, seem to be intothe same physical LAN segment even if they are geographically separated.

The VLAN are used to separate traffic on the same physical LAN too. Station operating on the same physicalLAN but on different VLAN work in separated mode thus they do not share broadcast and multicast mes-sages. This results in a reduction of broadcast generated traffic and above all we get more security thanksto network separation.

Tag position and structure are shown into Fig.61.

Tag is made up with:

• a fixed word of 2 bytes

• 3 bits for priority according 802.1p

• 1 fixed bit

• 12 bits VLAN identifier (VLAN ID) according 802.1q.

Switch crossconnections are based on Vlan Configuration Table where input and output ports or only outputports should be defined for any used VID.

Vlan Configuration Table has 64 position for Vlan ID range from 1 to 4095.

10.1.3.9 Switch organized by port

The switch can be organized on port basis treating both Tagged and Untagged packets in the same way.

For each input port it is possible to define where to route the incoming traffic; one or more of the 3 otherports can be Enabled to exit the incoming traffic. It is possible, also, to route back the incoming traffic intothe same port. This type of connection are monodirectional. For a dibirectional connection between a ge-neric Lan A and Lan B it is necessary to set the connection from Lan A to Lan B and from Lan B to Lan A.

LIM Ethernet has 3 physical ports and one internal port, radio side. The internal switch can connect two ormore ports together.

Then MAC address bridging rules will be applied to this packet. It is possible to select that a packet followsthe description of Vlan Configuration Table for its Vlan ID.

Another selection is to follow only Vlan Configuration Table.

Packets can exit from a port as Unmodified or all Tagged either all Untagged. Unteggad packets will takedefault tags.

For output operations there are 3 selections:

• unmodified: tagged packets keep their tag. Untagged packets remain untagged

• tagged: all the packets will exit tagged, tagged packets keep their tag, untagged packets take De-fault VID of incoming port.

• untagged: all the packets will exit untagged.

10.1.3.10 Switch organized by VLAN ID

Vlan Configuration Table

Vlan Configuration Table defines a list of Vlan ID, For any Vlan ID some ports are members of Vlan othersare not members. Ports members of a Vlan are allowed to receive and send packets with that Vlan. Switchdinamically assignes packets to the output port according their VLAN ID.

Packets aren’t sent out to that port unless they belong to one of the Vlan of which the port is a member.

A port can be a member of a Vlan or many Vlan.

84 AL - MN.00107.E - 017

A port can be a member from 1 to 64 Vlans but tagged packets are dropped if their input port is not amember of packet’s Vlan.

After the control of packet and port Vlan membership MAC address bridging rules will be applied to thispacket.

Ingress Filtering Check

This is a process to check an incoming packet to compare its Valn ID to input port’s Vlan membership. WithIngress Filtering Check it is possible to permit only to tagged packets to enter the switch. If the port is notmember of the Vlan n. XX all the incoming packets with Vlan ID XX will be dropped.

There are 3 option into Ingress Filtering Check to manage incoming packets:

• Disable: all Tagged and Untagged packets can transit into the switch following setting of swicth or-ganized by port.

• Fallback: Untagged frames follow the rules of switch organized by port, Tagged frames with VlanID described into the Vlan Configuration Table follow the rules of the table, Tagged frames with VlanID not described into the Vlan Configuration Table follow the rules of switch organized by port.

• Secure: Untagged frames cannot enter the switch, Tagged frames with Vlan ID described into theVlan Configuration Table follow the rules of the table, Tagged frames with Vlan ID not described intothe Vlan Configuration Table cannot enter the switch.

Operations at the input. At the input port the packet is received and a switching decision must be made.The switch analyse the Vlan ID (if present) and decides whether and where to forward the frame. If thereceived packet is untagged, the switch sends the packet to the port specified into incoming port “Lan perport” settings. If the packet is tagged the switch check the other 3 destination ports to find at least onewith the same Vlan ID and put the packet into output port queue. If the Vlan ID is not listed into VlanConfiguration Table the switch sends the packet to the port specified into incoming port “Lan per port” set-tings. Then MAC address bridging rules will be applied to this packet.

Operations at the output. For each output port there are 3 selections for outgoing packets.

• Disable output port

• Enable unchanged: tagged packets keep their tag. Untagged packets remain untagged.

• Enable tagged: all the packets will exit tagged with Vlan ID specified into Vlan Configuration Table,tagged packets keep their tag, untagged packets take Default VID of incoming port.

• Untagged: all the packets will exit untagged.

10.1.3.11 Layer 2, Priority function, QoS, 802.1p

Some services as voice overIP and videoconference have some time limits to work properly. A solution isto increase the priority of time sensitive packets. In this case random crowding coming from other servicesaffects the delay of prioritized packets a lot less.Into LIM Ethernet module different priority of incoming packets is managed using Tag defined into IEEE802.1p (see Fig.61).Every switch output port holds 4 output queues: queue 4 has highest priority, queue 0 has the lowest pri-ority (see Fig.62).

Priority can be organized by incoming port or by incoming priority tag:

• Priority by incoming port. For Untagged packets at each input ports it is decided to send the packetsto one of the 4 queues of output ports defining which is the Default Priority Queue: Queue = 0, 1,2, 3. For Tagged packets it is necessary to Disable Priority so they will go in the same queue ofUntagged packets.

• Priority by incoming priority. For tagged packets for each priority tag (3 bits = for 7 priority levels)it is possible to define where to send the packets, into Queue from 0 to 3. Priority must be enableon 802.1p mode only or IpToS mode only (see next paragraph) or first check 802.1p mode andIpToS mode either first check IpToS mode only (see next paragraph) or first check 802.1p modeand IpToS mode either first check IpToS mode and then 808.1q. For untagged packets the priorityis defined only by incoming port.

Outgoing packet policy at output ports can be WFQ (Wait Fair Queue) with fixed proportional output policy8 packets from Queue 3, 4 from Queue 2, 4 from Queue 1, 1 from Queue 0.

AL - MN.00107.E - 017 85

10.1.3.12 Layer 3, Priority function, QoS, IP–V4 ToS (DSCP)

Only for IP packets it is possible to use incoming Layer 3 ToS (see Fig.63) to prioritize incoming packets.The 8 bits available can be read as 7 bits of ToS or 6 bits of DSCP as shown in Fig.64.

According priority defined into ToS/DSCP the packet is sent into high priority queue low priority queue ofoutput ports.

With SCT/LCT program it is possible to select a different output queue for any ToS/DSCP priority level ateach input port.

10.1.4 RIM

Refer to Fig.56.




• power supply

• telemetry IDU/ODU.














The power to the ODU is given by the same battery running through the interconnection cable. An elec-tronic breaker protects the battery against cable failure.

86 AL - MN.00107.E - 017



10.1.5 CONTROLLER












For 100 Mbit/s version the following service channels are available:


• 2x2 Mbit/s wayside G.703 channels.

10.1.6 Equipment software



Main controller







AL - MN.00107.E - 017 87

















10.2 IDU LOOPS





88 AL - MN.00107.E - 017





10.2.3 IDU loop


AL - MN.00107.E - 017 89

Fig.48 - LIM block diagram – Tx side

Code

conve

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Code

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90 AL - MN.00107.E - 017

Fig.49 - Single tributary multiplexing/demultiplexing



MUX proprietary

frameB.I.

DEMUX proprietary

frameB.E.

Ck

Ck

Tx data

Rx data

2/34 Mbit/s

2/34 Mbit/s

Aggregate Ck

MUX proprietary

frameB.I.

DEMUX proprietary

frameB.E.

Ck

Ck

Tx data

Rx data

2x2 Mbit/s

2x2 Mbit/s

Aggregate Ck

MUX 2 ->8G.742

B.I.

DEMUX 2 ->8G.742

B.E.

Ck

Ck

Framed data 8448 Tx

Framed data 8448 Rx

4x2 Mbit/s

4x2 Mbit/s

Aggregate Ck

AL - MN.00107.E - 017 91


MUX 2 ->8G.742

B.I.

DEMUX 8 -> 2G.742

B.E.

Ck 8448 kHz Tx

4x2 Mbit/s

4x2 Mbit/s

Aggregate Ck

MUX 2 ->8G.742

Framed data 8448 Tx

4x2 Mbit/s

DEMUX 8 -> 2G.742

4x2 Mbit/s

Framed data 8448 Rx

Ck

Data

Data

Data

92 AL - MN.00107.E - 017


Fig.54 - Multiplexing/demultiplexing 2x34 Mbit/s

MUX2 ->8G.742

B.I.

4x2 Mbit/s

Aggregate Ck

MUX2 ->8G.742

4x2 Mbit/s

MUX2 ->8G.742

4x2 Mbit/s

MUX2 ->8G.742


Ck 8448 kHz Tx



Ck 34368 kHz Tx

DEMUX8 ->2G.742

B.E.

4x2 Mbit/s

Aggregate Ck

DEMUX8 ->2G.742

4x2 Mbit/s

DEMUX8 ->2G.742

4x2 Mbit/s

DEMUX8 ->2G.742


Ck 8448 kHz



Ck 34368 kHz

Destuffing2 Mbit/s wayside

Stuffing2 Mbit/s wayside

BI/BE77600 kbit/s

34368 k

34368 k

Aggregate Ck

AL - MN.00107.E - 017 93

Fig.55 - LIM block diagram – Rx side

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94 AL - MN.00107.E - 017


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AL - MN.00107.E - 017 95



Mai

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338 k

b/s

388 k

bit/s

LAN

RS232

LCT

Use

r In

Ala

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Use

r O

ut

FSK

modem

FSK

modem

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388 k

bit/s

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modem

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modem

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IPIPoverOSI

IS-ISISO 10589

PPP PPPLLCMAC

LAPDQ921

LCCMAC

RS232 EOCEthernet

LAN EOCEthernet

LAN


Transportlayer

Routinglayer

Data linklayer

Physicallayer

96 AL - MN.00107.E - 017


330 M

Hz

to O

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BB loop

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AL - MN.00107.E - 017 97

Fig.60 - LIM Ethernet 2 Mbit/s block diagram

10/1

00Bas

eT

10/1

00Bas

eT

10/1

00Bas

eT

LAPS

MU

X

16x2

M

bit/s

MU

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16x2

M

bit/s

CONCATENATED 2 Mbit/s

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ra

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10/100BaseT 2 Mbit/s

0-4

x2 M

bit/s

Only

for

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Mbit/s

ver

sion

98 AL - MN.00107.E - 017

Fig.61 - Tag control into field

Fig.62 - Output queues

Fig.63 - ToS/DSCP tag position into IP packets

Ethernet Layer 2 Header, non-802.1p

Destination Source Type/Length

Ethernet Layer 2 Header, 802.1p

Destination Source Tag Control Info Type/Length

8100 h

2-Bytes 3-Bits 1-Bit 12-Bits

Tagged frame type interpretation3 bit priority

field 802.1p Canonical 12-bit 802.1q VLAN Identifier

Ethernet Layer 2 Header, 802.1p

Type = 2 byte (8100)Level 2 priority (802.1p) = 3 bit (value from 0 to 7)Level 2 VLAN (802.1q) = 12 bit (value from 1 to 4095)Canonical form = 1 bit (shows if MAC addresses of current frame are with canonical form:- C = 0 canonical form (MAC with LSB at left) (always into Ethernet 802.3 frames)- C = 1 canonocal form (MAC with MSB ay left) (token ring and some FDDI)

Queue 3

Queue 2

Queue 1

Queue 0

Output Port

Input port

Version TOS Total Length

Total Length Flags Fragment Offset

IHL

TTL Protocol ID Header Checksum

Source IP Address

Destination IP Address

Options Padding

Data

4 4 8 16

AL - MN.00107.E - 017 99

Fig.64 - ToS/DSCP

0 1 2 3 4 5 6 7

MSB LSB

Not used

Not used

DSCP

ToS

100 AL - MN.00107.E - 017

11 DESCRIPTION OF THE INDOOR UNIT FOR E/W REPEATER WITH DROP/INSERT

11.1 GENERAL

Description that follows covers indoor unit for East/West repeater with Ring Protection.

Paragraph 11.2 COMPOSITION deals with unit composition because number and type of modules are dif-ferent respect a standard IDU.

Paragraph 11.3 IDU CHARACTERISTICS deals with an explanation of unit block diagrams and with a de-scription of functions performed by each module.

11.2 COMPOSITION

Indoor unit for East/West repeater with Drop/Insert functionalities is made up with the following modules:

- D12052–02 Processor unit (2: East, West)

- D12089 Crossconnection matrix

- D12094 Controller

- D12037 RIM (2: East, West)

Fig.65 - IDU for E/W repeater

RIMRIM

12

21

RIMRIM

FAIL

FAIL

Q3WAYA


SIDE

RXTX

REMTEST

ODUIDU

16151413121110987654321FAIL

D12052-02 D12089 D12037

D12094

East

West

AL - MN.00107.E - 017 101

11.3 IDU CHARACTERISTICS

11.3.1 Management of tributaries

A 2 Mbit/s tributary can be managed by cross connection matrix in different ways:

• Ring Protection – A tributary is inserted (transmitted) in radio aggregate frame towards both direc-tion and can be dropped (received) from one direction or from the other depending on cross con-nection and E1 switch criteria

• Pass through – IDU works as repeater, tributary coming from one direction is sent to the other

• Loop – E1 accessing the matrix from East side or West side can be looped back towards its origin.

11.3.2 Capacity

IDU max capacity depends on modulation used:

• 16QAM – max capacity is 32x2 Mbit/s with maximum 16 tributaries with protected connections(Drop/Insert). Lower capacity can be set.

• 4QAM – max capacity is 16x2 Mbit/s and in this configuration all tributaries can be set in DropInsertor in Pass through (in this last configuration the three sides of the matrix have the same capacity:16x2 Mbit/s). Lower capacity can be set.

System can work with one branch capacity different than the other.

11.3.3 E1 switching criteria

In network configuration where thus East/West repeater IDU is employed as a Ring Protection, where adirection protects the other on the opposite direction, the E1 drop can be managed through suitable E1switching criteria:

1 Manual forcing

2 2 Mbit/s G.704 alarms (AIS, OOF, OOMF, BER6) where:

- AIS: presence of AIS

- OOF: out of E1 frame

- OOMF: out of E1 multiframe

- BER6: BER = 10–6

3 Preferential.

11.4 CIRCUIT DESCRIPTION

Description that follows is referring to MATRIX/PROCESSOR/CONTROLLER/RIM module the IDU consists of.

102 AL - MN.00107.E - 017

11.4.1 Matrix

Matrix module presents on front panel the 2 Mbit/s connectors and contains the sixteen relevant electricalinterface and the cross connection matrix.

The matrix allows connections of 2 Mbit/s streams with following capacities and directions:

• east side – 32x2 Mbit/s, subduvided from 1 to 16 one at a time and from 17 to 32 framed inside a34368 kbit aggregate

• west side – 32x2 Mbit/s, subdivided from 1 to 16 one at a time and from 17 to 32 framed inside a34368 kbit aggregate

• towards front panel – 16x2 Mbit/s 75 ohm.

Function performed by matrix module are the following:

• code conversion of 2 Mbit/s streams in input and output (for Drop/Insert operations)

• tributary transit between East and West

• tributary transit towards one or both directions, in position not involved in tribitary transit

• tributary drop from East or West or from one of them using appropriate switching criteria.

Tributaries cross connected by matrix are sent and received to/from East and/or West processor module,depending on their direction and connection.

Hitless Rx switch between 2 Mbit/s streams, coming from East and West, can work with relative delay upto 7 ms.

11.4.2 Processor

Operations performed by processor module depend on selected capacity and modulation.

Tx side

• 32x2 Mbit/s (available in 16QAM only) – processor module receives from matrix 32 tributaries, thefirst sixteen one by one and the second sixteen inside a 34368 kbit/s aggregate. The first sixteentributaries, in MUX block, are grouped in a frame structure at 34368 kbit/s as per Recc. G751. Inthis way two aggregates at 34368 kbit/s are sent to the Bit Insertion. The 2 Mbit/s wayside under-goes stuffing process before being sent to the B.I.After B.I. signal at 77760 kbit/s is sent to modulator.

• 16x2 Mbit/s – Processor module receives from Matrix 16 tributaries. The sixteen tributaries aregrouped in a frame structure at 34368 kbit/s as per Recc. G751. In this way the aggregate at 34368kbit/s is sent to the Bit Insertion. The 2 Mbit/s wayside undergoes stuffing process before being sentto the B.I. After B.I. signal at 38880 kbit/s is sent to modulator.

• 8x2 Mbit/s – Processor module receives from matrix 8 tributaries. These are grouped in two 4x2Mbit/s groups generating a G.742 frame structure at 8448 kbit/s and sent to the Bit Insertion. AfterB.I. signal at 19440 kbit/s is sent to modulator.

• 4x2 Mbit/s – Processor module receives from matrix 4 tributaries. These are grouped in one 4x2Mbit/s group generating a G.742 frame structure at 8448 kbit/s and sent to the Bit Insertion. AfterB.I. signal at 9720 kbit/s is sent to modulator.

• 2x2 Mbit/s – Processor module receives from matrix 2 tributaries. These are grouped in a proprie-tary frame and sent to the Bit Insertion. After B.I. signal at 4860 kbit/s is sent to modulator.

An additional Service Mux/Demux is provided to aggregate various service signal interfaces by Controllermodule. Achieved stream is sent to BI/BE to obtain the aggregate frame (various bit rate depending oncapacity set) for block MOD/DEMOD.

This aggregate frame contains:

• main signal from MUX and from MATRIX

• aggregate signal from service MUX

AL - MN.00107.E - 017 103

• EOC signal for supervision towards remote equipments

• Frame Alignment Word

• Bits dedicated to FEC.

Processor also includes digital process of modulating signal to be sent to the mixer of QAM nodulator insideRIM. The digital process includes:



• generation of shaped modulating signal I and Q towards the RIM module.

Rx side

From connected RIM, Processor module receives I and Q analogue signals, converts them in digital formand performs:

• clock recovery



• bit decision


• parallel to serial convertion to recover aggregate signal.

Aggregate signal is sent to a frame alignment circuit and CRC analysis and after to error corrector block(FEC). Errors are properly counted to achieve:


• Radio performances.

HBER alarm is used to insert AIS in Rx signal.

Achieved signal is sent to Bit Ex circuit that, depending on capacity and modulation, performs in oppositeway the operations mentioned in Tx side.

104 AL - MN.00107.E - 017

Fig.66 - Block diagram of IDU with Cross Connection Matrix

D/A

Dig

ital

MO

D/D

EM

OD

- S/P

conve

rsio

n-

Diffe

r. E

nco

de/

Dec

ode

- M

odula

tion/D

emodula

tion

with C

RC a

nd F

EC

- FS

K m

od

- 388 k

bit/s

Bit I

n/B

it E

x

- M

ain t

raffic

+ s

ervi

ces

- EO

C-

FEC

- FA

W

Aggre

gat

e CK

MU

X/D

EM

UX

16x2

D/A

Dig

ital

MO

D/D

EM

OD

- S/P

conve

rsio

n-

Diffe

r. E

nco

de/

Dec

ode

- M

odula

tion/D

emodula

tion

with C

RC a

nd F

EC

- FS

K m

od

- 388 k

bit/s

Bit I

n/B

it E

x

- M

ain t

raffic

+ s

ervi

ces

- EO

C-

FEC

- FA

W

Aggre

gat

e CK

MU

X/D

EM

UX

16x2

MATRIX

- E1 in P

ass

thro

ugh

- E1 w

ith p

rote

cted

connec

tion

to/f

rom

RIM

EAST

QI

77760 k

bit/s

From

se

rvic

e ch

annel

in

terf

ace

34368 k

bit/s

EAST

34368 k

bit/s

(17..

.32)

(1..

.16)

16x2

Mbit/s

From

co

ntr

olle

r

17.5

MH

z5.5

MH

z

...

Trib

uta

ry inte

rfac

es

116

QI

From

se

rvic

e ch

annel

in

terf

ace

17.5

MH

z5.5

MH

z

From

co

ntr

olle

r

77760 k

bit/s

34368 k

bit/s

WEST

34368 k

bit/s

to/f

rom

RIM

WEST

AL - MN.00107.E - 017 105

11.4.3 RIM

Refer to Fig.67.




• power supply















The power to the ODU is given by the same battery running through the interconnection cable. An elec-tronic breaker protects the battery against cable failure.



106 AL - MN.00107.E - 017

11.4.4 CONTROLLER













11.4.4.2 Equipment software



Main controller




- USB asynchronous used for SCT/LCT connection









AL - MN.00107.E - 017 107










11.5 IDU LOOPS









108 AL - MN.00107.E - 017

11.5.3 IDU loop


East side or West side tributary loop

Tributaries, accessing the matrix from East side or West side, not assigned nor in a Transit nor in a crossconnection, can be looped back towards their direction of origin.


Cab

le

inte

rfac

e

Ove

rcurr

ent

pro

tect

.

Rem

ote

pow

er s

upply

5.5

MH

z

QAM

MO

D(I

F par

t)

330 M

Hz

DC

DC

from

LIM

I&Q

bat

tery

-4

8 V

I/V

pro

tect

Ste

p

dow

n

+3.6

V

-5 V

Cab

le

equal

iz.

DEM

QAM

(IF

par

t)

I&Q

to L

IM

17.5

MH

zfr

om

LIM

to L

IM

AL - MN.00107.E - 017 109


Mai

n c

ontr

olle

r

338 k

b/s

388 k

bit/s

LAN

RS232

LCT

Use

r In

Ala

rm/

Use

r O

ut

FSK

modem

FSK

modem

OD

U2

388 k

b/s

388 k

bit/s

FSK

modem

FSK

modem O

DU

1

EO

C

388 k

bit/s

gen

erat

or

rece

iver

388 k

bit/s

gen

erat

or

rece

iver

gen

/rec

.Pe

ripher

alco

ntr

olle

rPe

ripher

alco

ntr

olle

rgen

/rec

.

110 AL - MN.00107.E - 017



SNMP

TCP/UDP

IPIPoverOSI

IS-ISISO 10589

PPP PPPLLCMAC

LAPDQ921

LCCMAC

RS232 EOCEthernet

LAN EOCEthernet

LAN


Transportlayer

Routinglayer

Data linklayer

Physicallayer

AL - MN.00107.E - 017 111

Fig.70 - IDU E/W loops

MATRIX

32

.

.

.

.

.

1

1 16

BI/BE

MOD/DEM

PRO

CESSO

RRIM

East side

Remote loop

Local loop

Remote loop

Local loop

..........

EAST ODU

West side

IDU loop

Baseband loop

Tributary

Eas

t si

de

trib

. lo

ops

112 AL - MN.00107.E - 017

12 CHARACTERISTICS OF THE OUTDOOR UNIT

12.1 GENERAL

The ODU unit is available in two different versions: AL and AS.AS ODU is also called Universal ODU because it can work with ALS equipment (SDH).The following ODU characteristics are guaranteed for the temperature range from –33° C to +55° C.

12.2 TECHNICAL SPECIFICATION

- Output power at the antenna side see Tab.21

- Transceiver tuning range

- AL4 45.5 MHz

- AL7 42 MHz (154 MHz duplex spacing)56 MHz (161/168/196 MHz duplex spacing)94 MHz (245 MHz duplex spacing)

- AL13 84 MHz

- AL15 112 MHz (420 MHz duplex spacing)120 MHz (728 MHz duplex spacing)

- AL18 330 MHz

- AL23 336 MHz

- AL25/AL28 448 MHz

- AL32 252/280 MHz

- AL38 560 MHz

- RF frequency agility 125 kHz step

- Duplex spacing

- AL4 100 MHz

- AL7 154/161/168/196/245 MHz

- AL8 311,32 MHz

- AL11 530 MHz

- AL13 266 MHz

- AL15 420/490/728 MHz

- AL18 1010 MHz

- AL23 1008/1232 MHz

- AL25 1008 MHz

- AL28 1008 MHz

- AL32 812 MHz

- AL38 1260 MHz

- ATPC dynamic range 40 dB

AL - MN.00107.E - 017 113

- Transmit power attenuation range 40 dB, 1 dB step software adjustable

- Transmitter shut–down 40 dB

- Antenna side flange

- AL4 N female connector

- AL7/8 UBR84 (with separated antenna) or PBR84 (withintegrated antenna)

- AL11 UBR100

- AL13 UDR120 or PDR120 with 90° rigid elbow

- AL15 UDR140 or PDR140 with 90° rigid elbow

- AL18/23/25 UBR220 or PBR220 with 90° rigid elbow

- AL28/32/38 UBR320 or PBR320 with 90° rigid elbow

- AGC dynamic range from –20 dBm to threshold corresponding to BER10–3

- Accuracy of Rx level indication (PC reading) ±3 dB in the range –40 dBm to –75 dBm±4 dB in the range –30 dBm to –40 dBm

- Maximum input level for BER 10–3 –20 dBm

- Type of connector at the cable interface side “N”

- Signals at the cable interface

- QAM modulated carrier 330 MHz (from IDU to ODU)140 MHz (from ODU to IDU)

- Telemetry 388 kbit/s

- Telemetry carriers 17.5 MHz (from IDU to ODU)5.5 MHz (from ODU to IDU)

- Available loops RF loop

Tab.21 - Nominal output power 1 dB tolerance (1+0 version) AL ODU/AS ODU

Note

In 1+1 hot stand–by version the output power decreases by the following values:

• –4 dB ±0.5 dB (balanced hybrid)

• –1.7/7 dB ±0.3 dB (unbalanced hybrid)

GHzOutput power

4QAMOutput power

16QAMOutput power

32QAM

4 +29/n.a. dBm +24/n.a. dBm +22/n.a. dBm

7 +27/30 dBm +22/26 dBm +20/n.a. dBm

8 +27/30 dBm +22/26 dBm +20/n.a. dBm

11 +25/29 dBm +20/25 dBm -

13 +25/29 dBm +20/25 dBm +20/n.a. dBm

15 +25/28 dBm +20/24 dBm +20/n.a. dBm

18 +20/24 dBm +15/20 dBm +15/20 dBm

23 +20/23 dBm +15/19 dBm +15/19 dBm

25 +20/23 dBm +15/19 dBm +15/19 dBm

28 +19/22 dBm +14/18 dBm +14/18 dBm

32 +17/20 dBm +13/16 dBm +13/16 dBm

38 +17/20 dBm +13/16 dBm +13/16 dBm

114 AL - MN.00107.E - 017

13 OUTDOOR UNIT DESCRIPTION

13.1 GENERAL

The 1+0 ODU (refer to Fig.71 or to Fig.73) consists of a two shell alluminium mechanical structure, oneshell housing all the ODU circuits, the other forming the covering plate.

On the ODU are accessible:

• the “N” type connector for cable interfacing IDU and ODU

• the “BNC” connector for connection to a multimeter with the pourpose to measure the received fieldstrenght

• a ground bolt.

The 1+1 hot stand–by version (refer to Fig.72) consist of two 1+0 ODUs mechanically secured to a struc-ture housing the hybrid for the antenna connection.

ODU exists in two different versions, AL and AS. They differs about dimensions and output power.

AS ODU is also called Universal because it can work with ALS equipment (SDH).

13.2 TRANSMIT SECTION

Refer to block diagram shown in Fig.74.

The 330 MHz QAM modulated carrier from the cable interface (see chapter 13.4 CABLE INTERFACE) is for-warded to a mixer passing through a cable equalizer for cable loss compensation up to 40 dB at 330 MHz.The mixer and the following bandpass filter give rise to a second IF Tx carrier the frequency of which de-pends on the go/return frequency value. The mixer is of SHP type.

The IF Tx frequency is µP controlled. Same happens to Rx IF and RF local oscillators. This latter is commonto both Tx and Rx sides.

The IF carrier is converted to RF and then amplified making use of a MMIC circuit. The convertion mixer isSSB type with side band selection.

The power at the MMIC output can be manually attenuated by 40 dB, 1 dB step .

Total attenuation is 40 dB including the 20 dB attenuator that follows.

The automatic adjustment is performed making use of an ATPC (see paragraph 13.5 ATPC OPERATION fordetails). The regulated output power is kept constant against amplifier stage gain variation by a feedbackincluding the AGC.

Before reaching the antenna side the RF signal at the output of MMIC passes through the following circuits:

• a decoupler plus detector diode to measure the output power

• a circulator to protect the amplifier stages against possible circuit mismatch.

• a ON/OFF switch for 1+1 operation

• an RF bandpass filter for antenna coupling.

An RF coupler plus a detector and a shift oscillator made up the RF loop which is enabled upon receiving aµP control. The RF loop permits the Tx power to return back to receive side thus controlling the total localradio terminal performance.

AL - MN.00107.E - 017 115

13.3 RECEIVE SECTION

The RF signal from the Rx bandpass filter is sent to a low noise amplifier that improves the receiver sen-sitivity. The following down–converter translates the RF frequency to approximately 765 MHz. The conver-tion mixer is SSB type. The sideband selection is given through a µP control.

A second down converter generates the 140 MHz IF carrier to be sent to the demodulator within the IDU.The level of the IF carrier is kept constant to –5 dBm thank to the IF amplifier stages, AGC controlled,distributed in the IF chain. In addition the AGC gives a measure of the receive RF level.

Between two amplifiers a bandpass filter assures the required selectivity to the receiver. The filter is SAWtype and the bandwidth depends on the transmitted capacity.

13.4 CABLE INTERFACE

The cable interface permits to interface the cable interconnecting IDU to ODU and viceversa.

It receives/transmits the following signals:

• 330 MHz (from IDU to ODU)

• 140 MHz (from ODU to IDU)

• 17.5 MHz (from IDU to ODU)

• 5.5 MHz (from ODU to IDU)

• remote power supply.

The 17.5 MHz and 5.5 MHz FSK modulated carriers, carry the telemetry channel. This latter consists of two388 kbit/s streams one from IDU to ODU with the information to manage the ODU (RF power, RF frequen-cy, capacity, etc...) while the other, from ODU to IDU, sends back to IDU measurements and alarms of theODU. The ODU management is made by a µP.

13.5 ATPC OPERATION

The ATPC regulates the RF output power of the local transmitter depending on the value of the RF level atthe remote terminal. This value has to be preset from the local terminal as threshold high and low. Thedifference between the two thresholds must be equal or higher than 3 dB.

As soon as the received level crosses the preset threshold level low (see Fig.77) due to the increase of thehop attenuation, a microP at the received side of the remote terminal sends back to the local terminal acontrol to increase the transmitted power. The maximum ATPC range is 40 dB.

If the hop attenuation decreases and the threshold high is crossed then the control sent by the microPcauses the output power to decrease.

13.6 1+1 Tx SYSTEM

The two ODUs are coupled to the antenna side via a balanced or unbalanced hybrid.

1+1 Tx switching occurs in the 1+1 hot stand–by 1 antenna or 2 antennas versions as shown in Fig.75 andFig.76.

116 AL - MN.00107.E - 017

The transmitter switchover is electromechanic type and consists of two ON/OFF switches within the twoODUs that assure at least 40 dB insulation on the stand–by transmitter.

Transmit alarm priority is shown in Tab.22.

Tab.22 - Transmit alarm priority

13.7 POWER SUPPLY

The battery voltage is dropped from the cable interface and then sent to a DC/DC converter to generatethree stabilized output voltages to be distributed to the ODU circuitry:

• +3.5 V

• a voltage comprised between +6.2 V and +8.2 V to power MMIC amplifiers operating at differentfrequency bands

• a –12 V through an inverter circuit.

Each voltage is protected against overcurrent with automatic restart.

Protection against overvoltage occurs as soon as the output voltage raises more than 15% respect to thenominal voltage. The restart is automatic.

Priority Levels Definition

Highest


Priority 2 Manual forcing



Priority 3 Modulator Failure

Priority 3 ODU Unit Failure Alarm




Priority 3 Tx Power Low Alarm

Priority 4Request from remote terminal (both re-

ceivers alarmed)

Lowest Priority 5 Revertive Tx (branch one preferential)

AL - MN.00107.E - 017 117

Fig.71 - 1+0 AL ODU

Fig.72 - 1+1 AL ODU

"N"

"BNC"

Ground bolt

118 AL - MN.00107.E - 017

Fig.73 - 1+0 AS or Universal ODU version

AL - MN.00107.E - 017 119

Fig.74 - ODU block diagram (both versions)

Cab

lein

terf

ace

Cab

leeq

ual

iz.

DC

DC

Ste

p

up

T

LNA

MM

IC

variab

le b

w

(cap

acity

dep

endin

g)

AG

C

N t

ype

330

MH

z

-48 V

x

PRx

mea

s

140

MH

z140

MH

z

appro

x.765

MH

z

+3.5

V

+6.2

to 8

.2 V

-12 V

AG

C

x

PTx

att.

co

ntr

ol

0 t

o 4

0 d

B

IF

LO

unit

MO

D

5.5

M

Hz

REC

17.5

M

Hz

DEM

17.5

M

Hz

MU

X

DEM

UX

388

kbit/s

Ala

rmm

anag

&

co

ntr

ol

Alm

com

mlo

ops

5.5

M

Hz

17.5

M

Hz

388

kbit/s

IF T

x

ante

nna

side

INV

BN

C

PRx

mea

s.

ctrl

RF

LO

unit Rx

Tx

RF

loop

ctrl

ctrl

ctrl

Rx

Tx

120 AL - MN.00107.E - 017

Fig.75 - 1+1 hot stand–by 1 antenna

Fig.76 - 1+1 hot stand–by 2 antennas

Antenna side

SW control

Tx side

Rx side

SW control

Tx side

Rx side

First antenna

SW control

Tx side

Rx side

SW control

Tx side

Rx side

Second antenna

AL - MN.00107.E - 017 121

Fig.77 - ATPC operation

Thresh High

Thresh Low

Hop attenuation (dB)

40 dBATPC range

PTx max.

PTx min.

Remote PRxdBm

Local PTxdBm

Hop attenuation (dB)

Tx

Rx

Rx

Tx

PTx actuation

Local Remote

PRx recording

Transmission

of PTx control

µP µPlevel

PTx control

122 AL - MN.00107.E - 017

AL - MN.00107.E - 017 123

Section 3.INSTALLATION

14 INSTALLATION AND PROCEDURES FOR ENSUR-ING THE ELECTROMAGNETIC COMPATIBILITY

14.1 GENERAL

The equipment consists of IDU and ODU(s) units and is mechanically made up of a wired 19” subrack (IDU)and a weather proof metallic container (ODU). The two units are shipped together in an appropriate card-board boxe.

After unpacking, mechanical installation takes place followed by electrical connections as described in thefollowing paragraphs.

14.2 MECHANICAL INSTALLATION

14.2.1 IDU installation

On their sides the subracks making up the several IDU versions are provided with two holes for the M6screws fastening the subracks to a rack or to a 19” mechanical structure. The front of the IDU mechanicalstructure is provided with the holes at the sides. This permits to fasten the subrack to a 19” rack by meansof 4 M6 screws.

To avoid overtemperature problems two IDUs maximum must be packed up. Leave 1/2 unit (22 mm) spacebetween two IDU pack if more than two IDUs are required to be mounted.

124 AL - MN.00107.E - 017

14.3 ELECTRICAL WIRING

The electrical wiring must be done using appropriate cables thus assuring the equipment responds to theelectromagnetic compatibility standards.

The cable terminates to flying connectors which have to be connected to the corresponding connectors onthe equipment front.

Position and pin–out of the equipment connectors are available in this section.

Tab.23 shows the characteristics of the cables to be used and the flying connector types.

Tab.23 - Characteristics of the cables

Interconnecting pointsType of connector terminating

the cableType of cable/conductor

BatteryPolarised SUB–D 3W3 female con-

nectorSection of each wire ≥ 2.5

sq.mm a

a. For power cable lenght longer than 20 m. a section of 4 mm is required.

Tributary signals 1.0/2.3 male connector

– 75 ohm coaxial cable withdouble shield diameter 4.5mm dielectric in expandedpolyethylene type 2YCC0.4/2.5 or equivalent– Alternatively to the aboveoption, 75 ohm coaxial ca-ble with double shield, di-ameter 3.1 mm dielectric inTeflon type RG179 B/U DSor equivalent

Tributary signals 25 pin SUB–D male connector

–120 Ohm balanced foursymmetric pairs with shield–75 Ohm unbalanced fourcoaxial cable pairs with theshield connect to groundpin (see “15 USER CON-NECTIONS” document forpin details)

Tributary signalsSCSI 50 pin male connector

(IDU Plus)

8 conductor cable different for 75 Ohm and 120 Ohm

signals

User input/alarm outputFemale type D connector with 9

pins and shielded holder

9 conductor cable with double brass sheath type

interconductor DB28.25 or equivalent

LCT/RS232 Female type D connector with 9

pins and shielded holder

9 conductor cable with double brass sheath type

interconductor DB 28.10 or equivalent

GND Faston male type Section area ≥ 6 sq. mm.

AL - MN.00107.E - 017 125

14.4 GROUNDING CONNECTION

Fig.78 and annexed legend show how to perform the grounding connections.

Legend

1 IDU grounding point, faston type. The cross section area of the cable used must be ≥ 4 sq. mm. Thefaston is available on the IDU both sides.

2 ODU grounding bolt. The cross section area of the cable used must be ≥ 16 sq. mm

3 IDU–ODU interconnection cable type Celflex CUH 1/4” terminated with N–type male connectors atboth sides.

4 Grounding kit type Cabel Metal or similar to connect the shield of interconnection cable.

5 Matching cable (tail) terminated with N male and N female connectors.

6 Battery grounding point of IDU to be connected to earth by means of a cable with a section area2.5 sq. mm. Length ≤ 10 m.

7 Grounding cords connected to a real earth internal of station. The cross section area of the cablemust be ≥ 16 sq. mm

Fig.78 - Grounding connection

IDUunit

ODUunit

2

6(+) (-)

4

Localground

rackground

Indoor

Stationground

7

1 5

3 4 3

126 AL - MN.00107.E - 017

15 USER CONNECTIONS

15.1 CONNECTOR USE FOR 1+0/1+1 STANDARD VERSION

The user connections are performed through connectors on LIM/CONTROLLER/RIM modules. Fig.79 showsconnector position.

The connectors are the following:

• LIM module

- Trib IN/OUT: connectors 1.0/2.3 female 75 Ohm type or SUB–D 25 pins male 75 Ohm or 120Ohm type. For SUB–D connector details refer to Tab.24.

• Controller module

- LCT:RS232 type: connector SUB–D, 9 pins male type. For connector detail refer to Tab.26.USB type – connector “B” receptable. For connector detail refer to USB standard.

- USER IN/OUT: connector SUB–D, 9 pins male type. For connector details refer to Tab.33.

- RS232: connector SUB–D, 9 pins male type. For connector detail see Tab.27.

- Q3: connector BNC or microSUB–D 15 pins or RJ45. For SUB–D and RJ45 connector details referto Tab.25 and Tab.28.

- CH1/CH2: connector RJ45. For connector details see Tab.30 and Tab.31.

- 2 Mbit/s: connector RJ45. For connector details see Tab.32.

• RIM module

- connector TNC–50 Ohm for interconnection to ODU

- connector SUB–D, 3 pins for interconnection to battery.

15.2 CONNECTOR USE FOR 1+0 COMPACT AND NON EXPANDABLE VERSIONS

The user connections are performed through connectors on the IDU module. Fig.81 and Fig.82 show con-nector position.

The connectors are the following:

• Trib IN/OUT connectors up to 4x2 Mbit/s and up to 16x2 Mbit/s versions 1.0/2.3 female 75 Ohmtype or SUB–D 25 pins male 75 Ohm or 120 Ohm type. For SUB–D connector details refer to Tab.34

• Trib IN/OUT connectors up to 8x2 Mbit/s version SUB–D 25 pins male 75 Ohm or 120 Ohm type.For SUB–D connector details refer to Tab.34.

• LCT:RS232 type: connector SUB–D, 9 pins male type. For connector detail refer to .USB type – connector “B” receptable. For connector detail refer to USB standard.

• USER IN/OUT: connector SUB–D, 9 pins male type. For connector details refer to Tab.35.

• RS232: connector SUB–D, 9 pins male type. For connector detail see Tab.36.

AL - MN.00107.E - 017 127

• Q3: connector BNC or microSUB–D 15 pins or RJ45. For SUB–D and RJ45 connector details refer toTab.37 and Tab.38.

• CH1 connector RJ45 up to 4x2 Mbit/s version. For connector details see Tab.39.

• connector TNC–50 Ohm for interconnection to ODU

• connector SUB–D, 3 pins for interconnection to battery.

Fig.79 - User connector position, 1+0/1+1 standard version

Fig.80 - User connector posistion 1+0/1+1 standard version with Ethernet and 2 Mbit/s

Fig.81 - User connector position for IDU 1+0 compact (2, 2x2, 4x2 Mbit/s)

Fig.82 - User connector position for IDU 1+0 compact (2, 2x2, 4x2, 8x2 Mbit/s)

1 UNITA'

RIM

RIM

1

2

2

1

RIM

RIM-

++

-

Trib: M-N-O-PTrib: I-J-K-LTrib: E-F-G-H


Trib: A-B-C-D

FAIL

RIDU ODU

TESTREM

TX RX12 SIDE

2Mb/sCH2CH1

Q3

RS232USER IN/OUT

A WAY

LCT

RIM

CONTROLLER

LIM

RIDU ODU TX RX1

2 SIDE

AWAY

DCBA

10/100 BTX

2

2

1

RIM

RIM

RIM

RIM12

USER IN/OUTLCT RS232

FAIL

DPLX

ACTLINK

DPLX

ACTLINK

DPLX

ACTLINK

1 3

Q3

TEST REM CH1 CH2 2 Mbit/s +

+

-

-

RS232Trib. 1-2-3-4

2Mb/s

USER IN/OUTLCT

R

IDU ODU

TESTREM

Q3

+

-

CH1

A

A

-

+

Q3

REM TEST

ODUIDU

R

LCT USER IN/OUTRS232

2Mb/s

Trib. 5-6-7-8Trib. 1-2-3-4

2Mb/s

128 AL - MN.00107.E - 017

15.3 STANDARD VERSION CONNECTORS

Tab.24 - Tributary connector pin–out

Pin 120 Ohm impedance 75 Ohm impedance a

a. The 75 Ohm impedance tributary connector pin–out is referred to the flying connectors to beconnected to the equipment connectors.

1 Tributary 1/5/9/13 input (cold wire) Ground

2 Tributary 1/5/9/13 input (hot wire) Tributary 1/5/9/13 input

14 Tributary 1/5/9/13 input (ground) Ground

15 Tributary 1/5/9/13 output (cold wire) Ground

16 Tributary 1/5/9/13 output (hot wire) Tributary 1/5/9/13 output

3 Tributary 1/5/9/13 output (ground) Ground



















13 Ground Ground

AL - MN.00107.E - 017 129

Tab.25 - 100BaseT connector pin–out for 10/100BaseT Ethernet connection Pin Description

Tab.26 - LCT connector pin–out for connection to supervision system

Tab.27 - RSR232 connector pin–out for supervision system

Pin Description

1 Tx+

2 Tx–

3 Rx+

4 ––

5 ––

6 Rx–

7 ––

8 ––

Pin Description

1 ––

2 RxD

3 TxD

4 ––

5 GND

6 ––

7 ––

8 ––

9 ––

Pin Description

1 Not connected

2 Rx D (IN)

3 Tx D (OUT)

4 Not connected

5 GND

6/7/8/9 --

130 AL - MN.00107.E - 017

Tab.28 - Q3 AUI connector pin–out for Ethernet connection

Tab.29 - CH1 connector pin–out for 9600 bit/s – V.24 interface

Tab.30 - CH1 connector pin–out for 1x9600 or 2x4800 kbit/s – V.28 interface

Pin Description

1 GND

2 ACX+

3 ATX+

4 GND

5 ARX+

6 GND

7 NC

8 GND

9 ACX–

10 ATX–

11 GND

12 ARX–

13 –12V

14 GND

15 NC

Pin Description

1 CKTx

2 TD

3 DTR

4 DSR

5 GND

6 RD9600

7 CKRx

8 DCD

Pin Description

1 ––

2 TD (1° ch 9600 or 4800)

3 TD (2° ch 4800)

4 ––

5 GND

6 RD (1° ch 9600 or 4800)

7 ––

8 RD (2° ch 4800)

AL - MN.00107.E - 017 131

Tab.31 - CH2 connector pin–out for 64 kbit/s channel – V.11 interface

Tab.32 - 2 Mbit/s connector pin–out

Tab.33 - User in/out connector pin–out for external alarm input and alarm transfer to outside

Pin Description

1 D–V11–Tx

2 D+V11–Tx

3 C–V11–Tx

4 C+V11–Tx

5 D–V11–Rx

6 D+V11–Rx

7 C–V11–Rx

8 C+V11–Rx

Pin Description

1 Tx–C

2 Tx–F

3 GND

4 ––

5 Rx–C

6 Rx–F

7 GND

8 ––

Pin Description

1 C relay contact – branch 1

2 NA/NC relay contact – branch 1



5 User input 01

6 User input 02

7 User input 03

8 User input 04

9 GND

132 AL - MN.00107.E - 017

15.4 1/2 UNIT COMPACT VERSION CONNECTORS

Tab.34 - Tributary connector pin–out

Pin 120 Ohm impedance 75 Ohm impedance a

a. The 75 Ohm impedance tributary connector pin–out is referred to the flying connectors to beconnected to the equipment connectors.

























13 Ground Ground

AL - MN.00107.E - 017 133

Tab.35 - User in/out connector pin–out for external alarm input and alarm transfer to outside

Tab.36 - RS232 connector pin–out for connection to/from supervision system

Tab.37 - Q3 connector pin–out for 10BaseT Ethernet connection

Pin Description



3 --

4 --

5 User input 01

6 User input 02

7 User input 03

8 User input 04

9 GND

Pin Description

1 Not to be connected

2 Rx D (IN)

3 Tx D (OUT)

4 Not to be connected

5 GND

6 --

Pin Description

1 Tx+

2 Tx–

3 Rx+

4 --

5 --

6 Rx–

7 --

8 --

134 AL - MN.00107.E - 017

Tab.38 - Q3 AUI connector pin–out for Ethernet connection

Tab.39 - CH1 connector pin–out for 1x9600 or 2x4800 kbit/s – V.28 interface

Pin Description

1 GND

2 ACX+

3 ATX+

4 GND

5 ARX+

6 GND

7 NC

8 GND

9 ACX–

10 ATX–

11 GND

12 ARX–

13 –12V

14 GND

15 NC

Pin Description

1 ––

2 TD (1° ch 9600 or 4800)

3 TD (2° ch 4800)

4 ––

5 GND

6 RD (1° ch 9600 or 4800)

7 ––

8 RD (2° ch 4800)

AL - MN.00107.E - 017 135

16 USER CONNECTIONS FOR IDU PLUS

16.1 CONNECTOR USE FOR 1+0/1+1 IDU PLUS VERSION

User connections are performed through connectors on the IDU front panel modules (see Fig.83 andFig.84). The connectors are the following:

• Trib IN/OUT: 75 or 120 50-pin female connector: for SCSI connector details Tab.40, Tab.41

• LCT: USB connector B type receptable. For connector details see USB standard.

• USER IN/OUT: SUB-D male connector. Connector details refer to Tab.49

• Q3/1 and Q3/2: RJ45 connector. Connector details refer to Tab.42

• 50 Ohm connector for interconnection to ODU

• 48V: SUB-D 3 pin connector for interconnection to battery.

• V11: optional service interface. Connector details in Tab.47

• V.28: optional service interface. Connector details in Tab.46

• RS232 optional management interface. Connector details in Tab.43

• 2 Mbit/s wayside: optional 2 Mbit/s service channel. Connector details in Tab.48

Fig.83 - IDU Plus 1+1 (2x2 - 32x2 Mbit/s)

Fig.84 - IDU Plus 1+1 (up to 53x2 Mbit/s)

Tab.40 - Tributary IN/OUT - 75 Ohm

Pin 75 Ohm

48 Ground A

23 Tributary 1/9/17/25/33/41/49 input

50 Ground A

25 Tributary 1/9/17/25/33/41/49 output

47 Ground A

22 Tributary 2/10/18/26/34/42/50 input

+ -

-+

Q3/1R

IDU ODU

TESTREM

SIDE


A WAYQ3/2

FAIL


FAIL


Q3/2WAYA


SIDE

REM TEST

ODUIDUR

Q3/1

+ -

-+

FAIL

Trib: 33-40 Trib: 41-48 Trib: 49-53

136 AL - MN.00107.E - 017

Note: Join pin 44 with ground A pins, join pin 32 with ground B pins.

Fig.85 - Pin-out Tributary IN/OUT 50 SCSI

45 Ground A


42 Ground A

17 Tributary 3/11/19/27/35/43/51 input

43 Ground A

18 TributaryTributary 3/11/19/27/35/43/51 output

40 Ground A

15 Tributary 4/12/20/28/36/44/52 input

39 Ground A


36 Ground B

11 Tributary 5/13/21/29/37/45/53 input

37 Ground B


34 Ground B

9 Tributary 6/14/22/30/38/46 input

33 Ground B

8 Tributary 6/14/22/30/38/46 output

29 Ground B


31 Ground B


28 Ground B


26 Ground B


. . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . .

125

2650

AL - MN.00107.E - 017 137

Tab.41 - Tributary IN/OUT - 120 Ohm

Pin 120 Ohm

49 Tributary 1/9/17/25/33/41/49 input

23 Tributary 1/9/17/25/33/41/49 input

44 Ground A



44 Ground A

21 Tributary 2/10/18/26/34/42/50 input

22 Tributary 2/10/18/26/34/42/50 input

44 Ground A



44 Ground A

16 Tributary 3/11/19/27/35/43/51 input

17 Tributary 3/11/19/27/35/43/51 input

44 Ground A



44 Ground A

41 Tributary 4/12/20/28/36/44/52 input

15 Tributary 4/12/20/28/36/44/52 input

44 Ground A



44 Ground A

10 Tributary 5/13/21/29/37/45/53 input

11 Tributary 5/13/21/29/37/45/53 input

32 Ground B



32 Ground B



32 Ground B



32 Ground B

138 AL - MN.00107.E - 017

Tab.42 - Q3/1 and Q3/2 100BaseT connector pin-out for 10/100BaseT Ethernet connection

Tab.43 - Connector pin-out RS232 PPP interface



32 Ground B



32 Ground B



32 Ground B



32 Ground B

Pin Description

1 Tx+

2 Tx-

3 Rx+

4 --

5 --

6 Rx-

7 --

8 --

Pin Description

1 DCD (IN)

2 RD (IN)

3 TD (OUT)

4 DTR (OUT)

5 GND

6 Not connected

7 RTS (OUT)

8 CTS (IN)

9 Not connected

AL - MN.00107.E - 017 139

Tab.44 - CH1 connector pin-out for 9600 bit/s synchronous V.24 interface

Tab.45 - CH1 connector pin-out for 9600 bit/s asynchronous V.24 interface

Tab.46 - CH1 connector pin-out for 1x9600 or 2x4800 kbit/s V.28 interface

Pin Description

1 CKTx

2 TD

3 DTR

4 DSR

5 GND

6 RD9600

7 CKRx

8 DCD

Pin Description

1 --

2 TxD

3 DTR

4 DSR

5 GND

6 RxD

7 --

8 DCD

Pin Description

1 --

2 TD (1° ch 9600 or 4800)

3 TD (2° ch 4800)

4 --

5 GND

6 RD (1° ch 9600 or 4800)

7 --

8 RD (2° ch 4800)

140 AL - MN.00107.E - 017

Tab.47 - CH2 connector pin-out for 64 kbit/s channel - V.11 interface

Tab.48 - 2 Mbit/s wayside connector pin-out

Tab.49 - User IN/OUT connector pin-out

Pin Description

1 D-V11-Tx

2 D+V11-Tx

3 C-V11-Tx

4 C+V11-Tx

5 D-V11-Tx

6 D+V11-Tx

7 C-V11-Tx

8 C+V11-Tx

Pin Description

1 Tx-C (IN) commun

2 TX-F (IN) 120 Ohm

3 GND

4 TX-F (IN) 75 Ohm

5 Rx-C (OUT) commun

6 Rx-F (OUT) 120 Ohm

7 GND

8 Rx-F (OUT) 75 Ohm

Pin Description

1 C relay contact- branch 1

2 NA/NC relay contact - branch 1

3 C relay contact - branch 2

4 NA/NC relay contact - branch 2

5 User input 01

6 User input 02

7 User input 03

8 User input 04

9 Ground

AL - MN.00107.E - 017 141

17 INSTALLATION ONTO THE POLE OF THE ODU WITH SEPARATED ANTENNA

17.1 INSTALLATION KIT

Following installation kits are supplied with the equipment depending on different versions:

• 1+0 version

- antisliding strip (see Fig.86)

- supporting plate plus 60–114 mm pole fixing bracket and relevant nuts and bolts (see Fig.87)

- adapting tools and relevant bolts and nuts for 219 mm pole (see Fig.88)

- Band-it fixing system (see Fig.91)

- antenna side flange, variable as function of RF frequency (see Fig.89)

- support with ODU fast locking mechanism (see Fig.87)

- connection to the antenna with flexible wave guide and possible use of a rigid elbow (optional)(see Fig.89)

- kit for ground connection making part of ODU

• 1+1 version

- antisliding strip (see Fig.86)

- supporting plate plus pole fixing bracket and relevant nuts and bolts (see Fig.87)

- adapting tools and relevant bolts and nuts for 219 mm pole (see Fig.88)

- hybrid with ODU fast locking mechanism (see Fig.90)

- flexible waveguide trunk for connection to antenna (optional) (see Fig.89)

- kit for ground connection making part of the two ODUs.

Warning: in order to avoid damages to flexible waveguides, don’t fold or twist them more than values spec-ified as limit in installation instructions of the waveguide supplier.

17.2 REQUIRED TOOLS FOR MOUNTING (NOT SUPPLIED)

• N.2 13mm torque wrench

• N.1 15 mm torque wrench


• N.1 3 mm Allen wrench

142 AL - MN.00107.E - 017

17.3 INSTALLATION PROCEDURE

Installation procedure proceeds according to the following steps:

• Version 1+0: installation onto the pole of the supporting plate 2

• Version 1+0: installation onto the pole of the support plate by Band-it

• Version 1+1: installation onto the pole of the supporting plate 2

• Installation of the ODU (common to both 1+0 and 1+1 version)

• ODU grounding

1+0 version – Installation onto the pole of the supporting plate

Fig.86 – Mount antislide strip around the pole. The position of the plastic blocks depends on the positionof the supporting plate (see next step)

Fig.87 – Adhere the supporting plate to the antisliding strip plastic blocks and then secure it to the polethrough the fixing bracket for 60–114 mm pole (see Fig.87). Bolts and nuts are available on the supportingplate. Tightening torque must be 32 Nm.

Warning: As shown in Fig.88 an adapting kit must be used for the 219 mm pole. It consists of an additionalplate to enlarge the standard supporting plate dimension and relevant U–bolt for 219 mm pole fixing.

Fig.89 – Fix the flexible waveguide to the antenna side flange. Four fixing screws are available the dimen-sions of which depend on the waveguide type. Tighten progressively and alternatively the four screws withthe following torque:

Tab.50 - Torques for tightening screws

Fig.89 – Fix the antenna side flange to the support with ODU fast locking mechanism. The flange can bemounted horizontally (as shown in Fig.89) or vertically as function of convenience.

Fig.90 – Fix the support with ODU fast locking mechanism to the supporting plate making use of availablebolts and nuts. Fig.90 shows the possible positions. Tightening torque must be 18 Nm.

1+0 version – Installation onto the pole of the supporting plate by B

In case of 1+0 ODU installation, a Band-it pole mounting kit can be used: through slots (see Fig.91) onthe supporting plate two metallic bands secure the plate on the pole. Band characteristics are:

• thickness 0.76 mm

• width 19 mm.

1+1 version – Installation onto the pole of the supporting plate

Fig.86 – Mount antislide strip around the pole. The position of the plastic blocks depends on the positionof the supporting plate (see next step)

Fig.87 – Position the supporting plate to the antisliding strip plastic blocks and then secure it to the polethrough the fixing bracket for 60–114 mm pole (see Fig.87). Bolts and nuts are available on the supportingplate kit. Tightening torque must be 32 Nm.

2 In case of 219 mm pole, an adapting kit is supplied for the purpose.

Frequencies Screw Tool Torque

from 18 to 38 GHz Allen screw M3 Allen key 2.5 mm 1 Nm

up to 15 GHz Allen screw M4 Allen key 3 mm 2 Nm

AL - MN.00107.E - 017 143

Fig.92 – Secure the hybrid with ODU fast locking mechanism to the supporting plate using bolt and nutsavailable on the support plate. Tightening torque must be 18 Nm.Remove the plastic cover from the hybrid flange sides.

Warning: Do not remove the foil from the hybrid flange sides.



Warning: It is advisable to shape the waveguide flexible trunk, connecting ODU flange with antenna flangeas shown in Fig.95. This avoids possible condensate to be channelled towards the ODU flange.

Installation of the ODU

1 Remove the plastic cover from the ODU flange side. Apply silicon grease e.g. type RHODOSIL PATE4 to the O–ring of Fig.94.Warning: Do not remove the foil from the flange.

2 Bring the ODU with the two hands and position the ODU handle at the bottom side.

3 Position the ODU body close to the support with ODU fast locking mechanism and align ODU sideflange (see Fig.94) to antenna side flange ( see Fig.89 – 1+0 version) or hybrid side flange (seeFig.92 – 1+1 version).Note: For 1+0 version the ODU can assume positions of Fig.93 depending on the polarisation.

4 With respect to the flange alignment, turn the ODU body approx. 30° anti–clockwise and then insertthe ODU body into the support and search for alignment between reference tooth on the support(see Fig.89 – 1+0 version or Fig.92 – 1+1 version) and ODU body reference tooth (see detail Fig.94)

5 When alignment is achieved, turn the ODU body clockwise until “clack” is heard and the ODU rota-tion stops.

6 Secure ODU body on the support by tightening bolts (1) (see Fig.89 – 1+0 version or Fig.92 – 1+1version). Tightening torque must be 6 Nm.Final assembly of 1+1 version is shown in Fig.95. A parasol mounting is optionally possible.

17.4 GROUNDING

The ODU must be connected to ground making reference to details of Fig.96.




144 AL - MN.00107.E - 017

Fig.86 - Antisliding strip

Antisliding stripPlastic blocks

AL - MN.00107.E - 017 145

Fig.87 - 60–114 mm pole supporting plate fixing

Supporting plate

Use 15 mm wrench(32Nm torque)

Use 17 mm wrench(32Nm torque)

146 AL - MN.00107.E - 017

Fig.88 - Adapting kit for 219 mm pole

AL - MN.00107.E - 017 147

1 13 mm wrench6 Nm torque

Fig.89 - Mounting position

Antenna side flange

Support with ODU fastlockinh mechanism

Dente di riferimento

Position of antennaside flange

Reference tooth

1

1

148 AL - MN.00107.E - 017

Fig.90 - Possible positions of the support with ODU fast locking mechanism

Adapting kit for 219 mm pole

A

B C

AL - MN.00107.E - 017 149

Fig.91 - Band-it pole mounting kit

150 AL - MN.00107.E - 017

Fig.92 - Installation onto the pole of the supporting plate

Use 13 mm wrench (18 Nm torque)

Reference toothReference tooth

Hybrid with ODU fastlocking mechanism

1

1

RT1 RT2

Optional vaweguide

AL - MN.00107.E - 017 151

Fig.93 - Position of the ODU body depending on the polarisation for 1+0. For 1+1 the polarisa-tion is always vertical: handle at the left side.

Vertical Horizontal

152 AL - MN.00107.E - 017

Fig.94 - ODU body reference tooth

"N"

"BNC"

Ground bolt

ODU side flange

Reference tooth

O-ring

AL version

AS version

AL - MN.00107.E - 017 153

Fig.95 - Final ODU assembly of 1+1 version

Suncover (optional)AL version

AS version

154 AL - MN.00107.E - 017

Fig.96 - ODU grounding

1

2

4

3

5

AL version

AS version

AL - MN.00107.E - 017 155

18 INSTALLATION ONTO THE WALL OF THE ODU WITH SEPARATED ANTENNA



• 1+0 version

- wall supporting plate with additional contact surface extension plates (see Fig.97)

- antenna side flange, variable as function of RF frequency (see Fig.98)

- support with ODU fast locking mechanism (see Fig.98)


- kit for ground connection making part of ODU

• 1+1 version

- supporting plate with additional contact surface extension tools (see Fig.97)

- hybrid with ODU fast locking mechanism (see Fig.100)


- kit for ground connection making part of the two ODUs.


• N.2 13mm torque wrench



• N.1 3 mm allen wrench.


Installation procedure proceeds according to the following steps:

• version 1+0: installation onto the wall of the supporting plate

• version 1+1: installation onto the wall of the supporting plate

• installation of the ODU (common to both 1+0 and 1+1 version)

• ODU grounding.

156 AL - MN.00107.E - 017

1+0 version – Installation onto the wall of the supporting plate

Fig.97 – Fix on the supporting plate the two supplied extension plates to increase the wall contact surface.

Fig.97 – Secure the supporting plate on the wall using the more suitable screws.



Fig.98 – Fix the antenna side flange to the support with ODU fast locking mechanism. The flange can bemounted horizontally (as shown in Fig.98) or vertically as function of convenience.

Fig.99 – Fix the support with ODU fast locking mechanism to the supporting plate making use of availablebolts and nuts. Fig.99 shows three possible positions. Tightening torque must be 18 Nm.

1+1 version – Installation onto the wall of the supporting plate

Fig.97 – Fix on the supporting plate the two supplied extension plates to increase the wall contact surface.

Fig.97 – Secure the supporting plate on the wall using the more suitable screws.

Fig.100 – Secure the hybrid with ODU fast locking mechanism to the supporting plate using bolt and nutsavailable on the support plate. Tightening torque must be 18 Nm.Remove the plastic cover from the hybrid flange sides.

Warning: Do not remove the foil from the hybrid flange sides.



Warning: It is advisable to shape the waveguide flexible trunk, connecting ODU flange with antenna flangeas shown in Fig.103 This avoids possible condensate to be channelled towards the ODU flange.

Installation of the ODU

1 Remove the plastic cover from the ODU flange side. Apply silicon grease e.g. type RHODOSIL PATE4 to the O–ring of Fig.102.Warning: Do not remove the foil from the flange.

2 Bring the ODU with the two hands and position the ODU handle at the bottom side.

3 Position the ODU body close to the support with ODU fast locking mechanism and align ODU sideflange (see Fig.102) to antenna side flange (see Fig.98 – 1+0 version) or hybrid side flange (seeFig.100 – 1+1 version).

Note: For 1+0 version the ODU can assume positions of Fig.101 depending on the polarisation.

4 With respect to the flange alignment, turn the ODU body approx. 30° anti–clockwise and then insertthe ODU body into the support and search for alignment between reference tooth on the support(see Fig.98 – 1+0 version or Fig.100 – 1+1 version) and ODU body reference tooth (see detailFig.102)







AL - MN.00107.E - 017 157

5 When alignment is achieved, turn the ODU body clockwise until “clack” is heard and the ODU rota-tion stops.

6 Secure ODU body on the support by tightening bolts (1) (see Fig.98 – 1+0 version or Fig.100 – 1+1version). Tightening torque must be 6 Nm.

Final assembly of 1+1 version is shown in Fig.103. A parasol mounting is optionally possible.

18.4 GROUNDING

The ODU must be connected to ground making reference to details of Fig.104.

158 AL - MN.00107.E - 017

Fig.97 - Wall supporting plate

Extension plate

Supporting plate

M8 bolt and nut

Another possible fixation

AL - MN.00107.E - 017 159

Fig.98 - Support with ODU fast locking mechanism

Antenna side flange

Support with ODU fastlocking mechanism

Reference tooth

Position of antennaside flange

Reference tooth

1

1

13 mm wrench 6 Nm torque

160 AL - MN.00107.E - 017

Fig.99 - Mounting possible positions

AL - MN.00107.E - 017 161

Fig.100 - Installation onto the wall of the supporting plate

Use 13 mm wrench (18 Nm torque)

Reference tooth

Hybrid with ODU fastlocking mechanism

1

1

RT1 RT2

Optional waveguide

Reference tooth

162 AL - MN.00107.E - 017

Fig.101 - Position of the ODU body depending on the polarisation for 1+0. For 1+1 the polari-sation is always vertical: handle at the left side.

Vertical Horizontal

AL - MN.00107.E - 017 163


"N"

"BNC"

Ground bolt

ODU side flange

Reference tooth

O-ring

AS version

AL version

164 AL - MN.00107.E - 017

Fig.103 - Final ODU assembly of 1+1 version

Suncover (optional)

AS version

AL version

AL - MN.00107.E - 017 165

1 Bolt

2 Spring washer

3 Flat washer

4 Earth cable collar

5 Flat washer


1

2

4

3

5

AS version

AL version

166 AL - MN.00107.E - 017

19 INSTALLATION ONTO THE POLE OF THE ODU WITH INTEGRATED ANTENNA

19.1 FOREWORD

The installation onto the pole of the ODU with integrated antenna concerns both 1+0 and 1+1 versions.



1+0 version

• 60 to 114 mm pole mounting kit consisting of:

- centering ring and relevant screws (see Fig.105)

- antislide strip (see Fig.106)

- pole support system and pole fixing brackets (see Fig.107)

- ODU with O–ring and devices for ground connection

1+1 version

• pole mounting kit from 60 to 114 mm for 1+1 consisting of:

- centering ring and relevant screws (see Fig.105)

- antislide strip (see Fig.106)

- pole support system and pole fixing brackets (see Fig.107)

• hybrid mechanical body (see Fig.116)

• polarization twist disk (see Fig.117)

• 2 ODUs with O–rings and devices for ground connection.





• N.1 3 mm allen wrench.

AL - MN.00107.E - 017 167


Installation procedure proceeds according with the following steps:

1+0 version

1 installation onto the pole of the support system

2 installation of the antenna

3 installation of ODU

4 antenna aiming

5 ODU grounding

1+1 version

1 installation onto the pole of the support system

2 installation of the antenna

3 installation of hybrid circuit

4 installation of the two ODUs

5 antenna aiming

6 ODU grounding.

19.4.1 Installation onto the pole of the support system and the antenna

Fig.105 – Set the antenna in such a position as to be able to operate on its rear side. Locate the five thread-ed holes around antenna flange. Mount centering ring onto antenna flange and tight it with 3 calibratedbolts.Caution: centering ring should be mounted so that the screws do not stick out.

Define if the antenna will be mounted with vertical or horizontal polarization. Check that free drain holesstay at bottom side. Mount bolt type M10x30, in position A leaving it loose of 2 cm approx. With horizontalpolarization mount bolt type M10x30 in position D, leaving it loose of 2 cm approx.

Fig.106 – Mount antislide strip onto the pole. Place blocks as in Fig.106 following antenna aiming direction.Tighten the strip with screwdriver.

Fig.107 – Mount pole supporting system with relevant pole fixing brackets following antenna aiming direc-tion as indicated by arrow. Antislide strip should result at the center of supporting plate. Supporting systemshould lean against antislide clamp with the tooth as in Fig.108. Position the antenna in such a way thatbolt in position A or D of Fig.105 cross through hole E of Fig.109. Secure the support system to the poleby means of the pole fixing brackets and relevant fixing bolts.

Fig.110 – Rotate the antenna body until the remainder three antenna holes coincide with the three supportholes. Secure the antenna to the support by thightening the relevant passing through bolts.

168 AL - MN.00107.E - 017

19.4.2 Installation of ODU

1+0 version

1 Apply silicon grease e.g. RHODOSIL PATE 4” to the O–ring (4) of Fig.113 by protecting finger handswith gloves.

2 Bring the ODU with the two hands and position the ODU handle at the bottom side. The ODU handlecan assume position of Fig.111 depending on the polarization.

3 Position the ODU body near the support system and align ODU side flange to antenna side flange(see Fig.112). With respect to the flange alignment, turn the ODU body approx. 30° anti–clockwiseand then insert the ODU body into the support and search for alignemnt between reference toothon the support (see Fig.112) and ODU body reference tooth (see detail of Fig.113).

4 When alignment is achieved, turn the ODU body clockwise until “clack” is heard and the ODU rota-tion stops.Fig.114 and Fig.115 show ODU housing final position for vertical and horizontal polarization respec-tively.

5 Secure ODU body on the support system by tightening bolts (1) of Fig.112.

1+1 version

Fig.116 – Apply silicon grease, type “RHODOSIL PATE 4” to O–rings (1). Insert O–rings (1) and (6) intotwist polarization disk (2).

Vertical polarization

Fix the disk on hybrid flange placing marker (4), on disk, close to V mark.

Horizontal polarization

Fix the disk on hybrid flange placing reference (4), on disk, close to H mark.

Caution: Twist disk has two planes. Take care of position marker (4) on twist disk. The position of marker(4) plane should be in contact to hybrid like in figure. Tighten progressively and alternatively four screws(7) with four spring washers (8) with the following torque:


Fig.117 – Fix hybrid to support system with four bolts (1) taking care of RT1/RT2 position shown by labelsof Fig.117. Tighten progressively and alternatively four bolts (1).

19.4.3 ODU installation

The installation procedure of the two ODUs is the same.

1 Apply silicon grease e.g. RHODOSIL PATE 4” to the O–ring (4) of the Fig.113 by protecting fingerhands with gloves.

2 Bring the ODU with the two hands and position the ODU handle at the bottom side. For 1+0 theODU can assune position of Fig.111 depending on the polarisation. For 1+1 the handle ODU positionis always placed at the right side (horizontal polarization).

3 Position the ODU body near the support system and align ODU side flange to antenna side flange(see Fig.112). With respect to the flange alignment, turn the ODU body approx. 30° anti–clockwiseand then insert the ODU body into the support and search for alignemnt between reference toothon the support (see Fig.112) and ODU body reference tooth (see detail of Fig.113).




AL - MN.00107.E - 017 169

4 When alignment is achieved, turn the ODU body clockwise until “clack” is heard and the ODU rota-tion stops.Fig.114 and Fig.115 show ODU housing final position for vertical and horizontal polarization respec-tively for 1+0 version.Fig.118 shows ODU housing final position for 1+1 version.

5 Secure ODU body on the support system by tightening bolts (1) of Fig.112.

19.5 ANTENNA AIMING

Antenna aiming for 1+0 version and 1+1 version is the same. The antenna aiming devices allow to performthe following adjustments with respect to the starting aiming position:

- Horizontal ± 15° operating on the nut (3) shown in Fig.119, only after having loosenthe nuts (7), (8), (9), (10) of Fig.120.

- vertical ± 15° operating on vertical adjustment worm screw (2) shown in Fig.119only after having loosen nuts (1), (2), (11) of Fig.120 and (4) and (5) of Fig.119.For adjustment from 0° to +30° extract nut (1) Fig.120 and position it inhole (4), extract nut (2) Fig.120 and position it in hole (6). Operate on vertical adjustment worm screw (2) after having loosen nuts (1), (2), (11) ofFig.120 and (4) of Fig.119.For adjustment from 0° to –30° extract nut (1) of Fig.120 and position it inhole (3), extract nut (2) of Fig.120 and position it in hole (5). Operate onvertical adjustment worm screw (2) after having loosen nuts (1), (2), (11) ofFig.120 and (4) of Fig.119.

For vertical adjustment some markers, every 10°, are available on support.The bigger marker gives 0° starting aiming position. Once the optimum aimingposition is obtained, tighten firmly the four nuts (1), (2), (11) of Fig.120 and(4) and (5) of Fig.119 for vertical adjustment and the four nuts (7), (8), (9),(10) of Fig.120 for horizontal adjustment. Tighten with 15 mm wrench and32 Nm torque.

19.6 COMPATIBILITY

The pole installation kit of the ODU unit in 1+0 and 1+1 configuration is compatible with integrated antennacomplying with SIAE standard with measures 0.2 m, 0.4 m, 0.6 m, 0.8 m of diameter.

19.7 GROUNDING

See Fig.121.

On ODU grounding can be connected with the available bolt spring washer and flat washers as shown.

170 AL - MN.00107.E - 017

1 Antenna

2 Calibrated Allen screw

3 Centering ring

Fig.105 - Centering ring position

A

B C

D D

A B

C

A

B

C1

2

3

horizontal polarizationVertical polarization

3 mm allen key2,5 Nm torque

AL - MN.00107.E - 017 171

1 Steel belt

2 Plastic blocks

Fig.106 - Antislide strip

1

2

172 AL - MN.00107.E - 017

1 Pole fixing brackets

2 Tooth

3 Bolt

4 Pole support system

Fig.107 - Support mount on pole

2

3Antenna aiming direction

15 mm wrench32 Nm torque

1

3

1

3

3 3

3

AL - MN.00107.E - 017 173

1 Tooth

Fig.108 - Supporting system position

Fig.109 - Hole E

1

Antenna aiming direction

E

174 AL - MN.00107.E - 017

A, B, C, D Bolt slots

Fig.110 - Antenna installation on pole support

Fig.111 -Position of the ODU handle depending on the polarisation for 1+0. For 1+1 the polari-sation is always horizontal. Handle at the right side.

DA

B C


Vertical Horizontal

AL - MN.00107.E - 017 175

H: Reference tooth

Fig.112 - Support system for ODU housing and reference tooth in evidence

1

1

1

H

H

H

H

HH

HH


1

176 AL - MN.00107.E - 017


"N"

"BNC"

Ground bolt

ODU side flange

Reference tooth

O-ring

AL - MN.00107.E - 017 177

Fig.114 - ODU housing final position for vertical polarization

Fig.115 - ODU housing final position for horizontal polarization

305

305

305

178 AL - MN.00107.E - 017

1 O–ring

2 Polarization twist disk

3 Hybrid mechanical body

4 Position marker of twist disk

5 Reference label for twist disk

6 O–ring

7 Allen screws

8 Spring washer

Fig.116 - Hybrid and twist disk

2

1

3

4

5

6

7

8

AL - MN.00107.E - 017 179

1 Bolts

2 Spring washer

Fig.117 - Hybrid mount on pole support

21

1


RT2

RT1

180 AL - MN.00107.E - 017

Fig.118 - ODU housing final position for 1+1 version

AL version

AS version

AL - MN.00107.E - 017 181

1 Marker

2 Vertical adjustment

3 Horizontal adjustment

4 Bolt

5 Fixing nut

Fig.119 - Vertical and horizontal adjustments

12

34

5

182 AL - MN.00107.E - 017

1., 2., 3., 4. Horizontal aiming block bolts

5., 6., 7. Vertical aiming block bolts

8., 11. Threaded hole for vertical aiming up to –30°

9., 10. Threaded hole for vertical aimimg up to +30°

Fig.120 - Antenna aiming block

2

1 3

5

4

69

10

87

11



15 mm wrench 32 Nm torque


AL - MN.00107.E - 017 183

1 Bolt

2 Spring washer

3 Flat washer


5 Flat washer


1

2

4

3

5AL version

AS version

184 AL - MN.00107.E - 017

20 INSTALLATION ONTO THE POLE OF THE ODU WITH INTEGRATED ANTENNA (KIT V32307, V32308, V32309)

20.1 FOREWORD

The description concerns pole mounting of ODU, in 1+0 and 1+1 version, using following installation kits:

- V32307 for ODU with frequency from 10 to 13 GHz



Differences regard the dimensions and the presence of the centring ring (see Fig.122):

- V32307 centring ring for antenna flange from 10 to 13 GHz

- V32308 centring ring for antenna flange from 15 to 38 GHz

- V32309 no centring ring (and relevant screws).


Following installation kits are supplied with the equipment depending on different versions.

1+0 version

• 60 to 129 mm pole mounting kit:

- centring ring and relevant screws

- pole support system plus antenna (already assembled) and pole fixing brackets

- 1+0 ODU support and relevant screws

- ODU with O–ring and devices for ground connection

1+1 version

• 60 to 129 mm pole mounting kit:

- centring ring and relevant screws

- pole support system plus antenna (already assembled) and pole fixing brackets

- 1+0 ODU support

- hybrid and relevant screws

- polarization twist disk and relevant screws

- 2 ODUs with O–rings and devices for ground connection.

AL - MN.00107.E - 017 185


• N.1 2.5 mm Allen wrench



• N.1 13 mm spanner

• N.2 17 mm spanner.


Installation procedure is listed below:

1+0 version

1 antenna polarization

2 installation of the centring ring on the antenna

3 installation of 1+0 ODU support

4 installation onto the pole of the assembled structure

5 installation of ODU

6 antenna aiming

7 ODU grounding

1+1 version

1 antenna polarization

2 installation of the centring ring on the antenna

3 installation of 1+0 ODU support

4 installation onto the pole of the assembled structure

5 installation of hybrid

6 installation of ODUs

7 antenna aiming

8 ODU grounding.

186 AL - MN.00107.E - 017

20.5 1+0 MOUNTING PROCEDURES

20.5.1 Setting antenna polarization

Fig.122 – Set the antenna in such a position to operate on its rear side. Locate the four M3 Allen screwsaround the antenna flange. Unscrew them (use 2.5 mm Allen wrench) and position the antenna flange ac-cording on: horizontal wave guide –> vertical polarization, vertical wave guide –> horizontal polariza-tion. Screw again the four Allen screws (torque = 1 Nm).

20.5.2 Installation of the centring ring on the antenna

Fig.122 – Set the antenna in such a position to operate on its rear side. Locate the three holes around theantenna flange. Mount the centring ring onto antenna flange and tight it with the 3 Allen screws M4 (use3mm Allen wrench, torque 2 = Nm).

20.5.3 Installation of 1+0 ODU support

Fig.122 – Mount the support onto assembled structure (pole support system plus antenna) using the fourM8 Allen screws (use 6 mm Allen wrench, torque 18 = Nm). Two of the four screws, diagonally opposed,must be mounted with the two bushes around.

20.5.4 Installation onto the pole of the assembled structure

Fig.122 – Mount the assembled structure on the pole using the two pole fixing brackets and the four M10screws (use 17 mm spanner, torque = 13 Nm); the heads of the screws are inserted on the antenna side,the four nuts and the springs between nut and brackets are inserted on bracket side.

20.5.5 Installation of ODU (on 1+0 support)

Fig.123 – Apply silicon grease (e.g. RHODOSIL PATE 4”) on the O–ring by protecting fingers with gloves.

Fig.124 – Bring the ODU with the two hands and position the ODU handle at the bottom side. The handlecan assume the positions shown in the figure depending on the polarization. Position the ODU body nearthe support and align the wave guide of the ODU to the Wave guide of the antenna: respect to the positionof wave guide alignment, turn the ODU body approx. 30° counter–clockwise into the support and searchfor matching between reference tooth on the support (see Fig.125) and reference tooth on the ODU body.

Fig.126 – When alignment of the references teeth is achieved, turn the ODU body clockwise until rotationis stopped. In figure are shown ODU final position for both polarizations.

Fig.125 – When ODU positioning is over, secure ODU body on the support by tightening bolts (use 13mmspanner, torque = 6Nm).

AL - MN.00107.E - 017 187

20.5.6 Antenna aiming

Antenna aiming procedure for 1+0 version or 1+1 version is the same.

Horizontal aiming: ±5° operating on the 17 mm nut shown in Fig.127 with a 17 mm spanner, only afterhaving loosen the two 17 mm nut on the pivot.

Vertical aiming: ±20° operating on the 13 mm nut shown in Fig.127 with a 13 mm spanner, only afterhaving loosen the three 13 mm nut on the pole support.

Once optimum position is obtained, tighten firmly all the nuts previously loosen.

20.5.7 ODU grounding

ODU grounding is achieved with:

• M8 screw without washers

• M6 screw with washer

as shown in Fig.128.

20.6 1+1 MOUNTING PROCEDURES

In further page are explained all the mounting step not already discussed in paragraph “20.5 1+0 MOUNT-ING PROCEDURES”.

20.6.1 Installation of Hybrid

Fig.129 – The polarization twist disk must be always fixed on hybrid flange. Apply silicon grease (e.g. RHO-DOSIL PATE 4”) on the O–rings by protecting fingers with gloves. Bring the polarization twist disk with theposition marker down. Insert the O–ring into polarization twist disk.

Vertical polarization: fix the twist disk on hybrid flange placing the marker of the disk towards V mark.

Horizontal polarization: fix the twist disk on hybrid flange placing the marker of the disk towards H mark.

Tighten progressively and alternatively the four screws and spring washer with following torque:


Fig.130 – Fix hybrid body to 1+0 support with four M8 bolts (use 13 mm spanner, torque = 18 Nm), tightenprogressively and alternatively the bolts.




188 AL - MN.00107.E - 017

20.6.2 Installation of ODUs (on hybrid for 1+1 version)

For both ODUs.

Fig.123 – Apply silicon grease e.g. RHODOSIL PATE 4” to the O–ring by protecting fingers with gloves.

Fig.124 – Bring the ODU with the two hands and position the ODU handle at the bottom side. The handlecan assume the positions shown in the figure depending on the polarization. Position the ODU body nearthe support and align the wave guide of the ODU to the wave guide of the hybrid: respect to the positionof wave guide alignment, turn the ODU body approx. 30° counter–clockwise and then insert the ODU bodyinto the support. For 1+1 system the handle of the ODU is always positioned on the right. The polarizationtwist disk on the hybrid matches the antenna polarization.

Fig.131 – When alignment of the reference teeth is achieved, turn the ODU body clockwise until the rota-tion stops. In figure are shown ODUs final position.

Fig.125 – When ODU positioning is over, secure ODU body on the support by tightening bolts (use 17 mmspanner, torque = 6 Nm).

WARNING: Internal codes (e.g. installation items, antennas, PCB) are here reported only as example. TheManufacturer reserves the right to change them without any previous advice.

Fig.122 - 1+0 pole mounting

Four 13mmscrews

Two bushes

1+0 support

Three 3mm Allen screws(not present in V32309)

Centring ring(not present in V32309)

Antenna

AL - MN.00107.E - 017 189


Fig.124 - Position of the ODU handle depending on the polarisation for 1+0. For 1+1 the polar-isation is always horizontal. Handle at the right side.

"N"

"BNC"

Ground bolt

ODU wave guide

Reference tooth

O-ring

Vertical Horizontal

190 AL - MN.00107.E - 017

1 6 mm Allen screw

2 Bush (diagonally placed)

3 17 mm Tightening bolts (max torque = 6 Nm)

4 Reference point for horizontal polarization

5 Reference point for vertical polarization

Fig.125 - 1+0 support

1

1

2

2

3

1

1

3

4

5

4

5

AL - MN.00107.E - 017 191

Fig.126 - ODU housing final position for both polarization

1+0 ODU HP with handle on the right:horizontal polarization

1+0 ODU standard with handle on the left: vertical polarization

192 AL - MN.00107.E - 017

Fig.127 - Antenna aiming

Horizontal aiming:two 17mm block screws

Vertical aiming:13mm block screws

Pole support

17mm nut for horizontaladjustment of antenna

Internal 5mm Allenscrew for vertical

adjustment of antenna

AL - MN.00107.E - 017 193

1 Bolt

2 Spring washer

3 Flat washer


5 Flat washer


1

2

4

3

5AL version

AS version

194 AL - MN.00107.E - 017

1 O–ring

2 Polarization twist disk

3 Hybrid mechanical body

4 Position marker of twist disk

5 Reference label for twist disk

6 O–ring

7 Allen screws

8 Spring washer

Fig.129 - Hybrid and twist disk

2

1

3

4

5

6

7

8

AL - MN.00107.E - 017 195

Fig.130 - Hybrid installation

196 AL - MN.00107.E - 017

Fig.131 - 1+1 ODUs installation

AL version

AS version

AL - MN.00107.E - 017 197

21 INSTALLATION ONTO THE POLE OF THE 4 GHZ ODU WITH SEPARATED ANTENNA (KIT V32323)


1+0 version

• anti–sliding bracket

• ODU pole support and relevant screws

1+0 version

• anti–sliding bracket

• ODU pole support and relevant screws

• hybrid and relevant screws

• hybrid–ODU connecting cables




• N.1 17 mm spanner.


Installation procedure is listed below:

• 1+0/1+1 version: pole installation of the support

• 1+1 version: installation of the hybrid on the support

• installation of the ODU on the support

• ODU grounding and connection of the cables to the hybrid and antenna

198 AL - MN.00107.E - 017

1+0/1+1 version: pole installation of the support

Fig.132 – Install anti–sliding device (1) around the pole. The position of the plastic blocks depends on theposition of the support (2) and of the relevant hooking pin (3).

Hook the support to the plastic blocks by means of the hooking pin. Insert to the four screws (4) in therelevant holes, set the two brackets (5) and clamp them around the pole tightening the four nuts (6) (tight-ening torque = 32 Nm).

Cover the projecting bits of the screws using the relevant red covers (7).

The two holes (8) house the two tightening screws of the hybrid (only for 1+1 version).

1+1 version: hybrid installation on the support

Fig.133 – Set the hybrid (1) on the support (2) in such a way that the connectors are downward and thatthe holes on the lower side of the hybrid match with the corresponding holes (8) of the Fig.132.

Insert the two screws (3) (tightening torque = 7.3 Nm) and tighten the hybrid to the support.

ODU installation on the support

Locate the part of the support more suitable for the installation of the ODU: both the parts can be used(1+0 version).

Fig.133 – Locate the four slots (4) on the support (2).

Fig.134 – Keeping the knob of the ODU1 downward, partially screw the two screws (2) into the two upperholes of the ODU, on N connector side.

Hook the heads of the two screws (2) of the Fig.134 into the slots (4) of the Fig.133.

Insert also the remaining screws (2) into the holes (3).

Tighten all the four screws (2) (tightening torque = 7.3 Nm).

Put the sun–cover (5) over the ODU (1) and fix it to the knob of the ODU by means of the supplied strip.

In case of 1+1 version, repeat the whole procedure for the second ODU.

ODU grounding and connection of the cables to hybrid and antenna

Fig.135 – Tighten the grounding cable of each ODU by means of grounding bolt (1) (tightening torque =7.3 Nm) and the relevant washer. For the connection of the RF cable follow the label on the bottom of thehybrid: ODU1 (RT1) is that connected to RIM1 of IDU, ODU 2 (RT2) is that connected to RIM2 of IDU.

AL - MN.00107.E - 017 199

Fig.132 - Pole installation of the support

4

4

4

4

8

2

3

6

7

67

5

5

1

200 AL - MN.00107.E - 017

Fig.133 - Installation of the hybrid on the pole support (only for 1+1 version)

2

3

1

4

4

AL - MN.00107.E - 017 201

Fig.134 - Installation of the ODU on the support

5

231

202 AL - MN.00107.E - 017

Fig.135 - ODU grounding and connection of the cables to hybrid and antenna

1

1

RT2

RT1

AL - MN.00107.E - 017 203

Section 4.LINE-UP

22 LINE–UP OF THE RADIO HOP

22.1 LINE–UP OF THE RADIO HOP

The line–up consists of the following steps:

• on site radio terminal installation (perform user connections and ODU installation as described inthe relevant chapters)

• equipment switch–on (operate the ON/OFF switch on the RIM front)

• antenna alignment for maximum received RF signal level

• network element configuration

• check measurements.

22.1.1 Antenna alignment and received field measurement

Purpose of antenna alignment is to maximize the RF received signal level.

Proceed as follows:

• connect a multimeter to BNC connector on the ODU for AGC measurement

• adjust antenna pointing as soon as the maximum AGC voltage value is achieved.

The relationship between AGC voltage and received field is shown by Fig.136.

The received field level has a tolerance of ±4 dB in the full temperature range.

204 AL - MN.00107.E - 017

22.1.2 Network element configuration

A factory default address is assigned to each network element that must normally be reconfigurated onsite following the network administrator rules.

To the purpose it is required to connect the PC, where the SCT/LCT program has been installed, to thenetwork interfaces.

This has to be done via serial cable or Ethernet cable.

Warning: the checks that follow require a good knowledge of the program use.

The description of each menu and relevant windows are given by the program itself as help on line.

Run the program and perform the connection to equipment by choosing from menu “Option” the connec-tion made via serial cable.

Perform the login to the equipment by entering:

• Equipment IP address 3

• User ID (default: SYSTEM)

• Password: (default: siaemicr)

Proceed to program what above mentioned following this path:

• IP Address: select menu “Equipment” from the menu bar and then Communication Setup–>PortConfiguration. Enter the required port addresses in the available communication ports. Press ? fordetails.

• Routing Table and Default Gateway: select menu “Equipment” from the menu bar and then Com-munication Setup–>Routing table: enter the routes or default gateway if necessary. Press ? for de-tails.

Warning: the routing policy depends on the routing type: manual IP/OSPF/IS–IS. The relevantrouting rules must be normally given by network administrator.

• Remote Element Table: select menu “Tools” from menu bar and then Subnetwork ConfigurationWizard. Station name and remote element table must be assigned following description of the con-textual help on–line (?).

• Agent IP Address: select menu “Equipment” and then “Properties”. Assign the address in accord-ance to the address of the remote element you want to reach.

22.1.3 Radio checks

It is advisable to perform the following measurements to check the correct operation of the radio hop:

• transmitted power

• received power

• RF frequency

• BER measurement

All these checks make use of the SCT/LCT program.

• Transmitted power, received RF level, RF frequency

- run SCT/LCT program and then perform the connection to the equipment you want to check.

- make double click on the select equipment until main RADIO PDH–AL window is shown.

- on top of the window Tx/Rx power and frequency values are displayed. In case of Tx power andfrequency setup proceed to Branch 1/2 and Power/Frequencies submenus.

• BER measurement

- Run SCT/LCT program and then perform the connection to the equipment you want to check.

3 If the connection is made via serial cable, the IP address is automatically achieved.

AL - MN.00107.E - 017 205

- Make double click on the selected equipment until main RADIO PDH–AL window is shown.

- On the left side select BER1/2 measure.In alternative it is possible to use the PRBS function if one or 2 Mbit/s line is free.

- Perform the BER measurement and check that values comply with the requirements.

Fig.136 - Detected voltage versus Rf received signal

-100 -80 -60 -40 -20

3

2,25

1,5

0,75

0 dBm

V

-70 -50 -30

1,125

1,875

2,625

206 AL - MN.00107.E - 017

23 LINE–UP OF LIM ETHERNET/2 MBIT/S

23.1 GENERAL

This paragraph deals with line–up of LIM Ethernet module with details of SCT/LCT program related only toEthernet application.

Assuming that the radio link is already in service, with correct frequency, output power and correct antennaalignment, the line up procedure for two different kinds of connection set up of a radio link AL, equippedwith LIM Ethernet/2 Mbit/s module, is hereafter described:

1 Local Lan–1 port to remote Lan–1 port connection Lam per port, see Fig.137

2 Local Lan–1 port to remote Lan–1 port connection with only VLANs

3 3 to 1 port connections, see Fig.150.

Settings here below are intended to be done both into local and remote radio equipment.

23.2 LOCAL LAN–1 PORT TO REMOTE LAN–1 PORT TRANSPARENT CONNECTION LAN PER PORT

Settings for Untagged and Tagged Traffic

Fig.137 - Local Lan–1 port to remote Lan–1 port connection

The line–up of AL with LIM Ethernet is made with the help of SCT/LCT program.

Please refer to Fig.138. First selection is Ethernet throughput and modulation scheme, in this example weselect 16 Mbit/s and modulation 16QAM (max throughput and modulation scheme depend on terms of li-cence provided by Siae Microelettronica).

Select configuration 1+0 or 1+1 according system requirements. Inside LCT, select Tributary window (seeFig.139). If 2 Mbit/s tributaries are needed, inside the Tributary window it is possible to activate a 2 Mbit/s input/output on the front panel. When the activation of required 2 Mbit/s tributaries is completed, all theothers 2 Mbit/s streams are automatically used for the Ethernet traffic. For instance with a 8x2 Mbit/s ca-pacity if we use two 2 Mbit/s the capacity assigned to Ethernet circuits is automatically set to 6x2 = 12Mbit/s full duplex.

AL radio

port 1

switch

Lan-1

AL radio

port 1

switch

Lan-2

Lan-3

Nx2 Mbit/s

Local

Lan-1

Lan-2

Lan-3

Nx2 Mbit/s

Remote

AL - MN.00107.E - 017 207

Fig.138 - Selection of Ethernet Throughput

Fig.139 - Tributary enable

208 AL - MN.00107.E - 017

See Fig.140 for General settings for the switch. All the used ports must be Enabled, so enable Lan–1 andInternal Port, see Fig.141.

The other ports should be disabled. The correct cable crossover arrangement must be selected too (seeFig.141). Enable LLF if needed only at the end of link line up.

For Untagged traffic, connections are done with Lan per port selections. Referring to Fig.142 incoming traf-fic at Lan–1 exits at Internal Port and into Fig.144 incoming traffic at Internal Port exits at lan–1 port. Thisconnection are done for all Untagged traffic and all Tagged packets with Vlan Id not described into VlanConfiguration Table.

If Vlan Configuration Table is blank all Tagged traffic follows the rules of Lan per port.

Possible selections of Ingress Filtering Check:

1 “Disable 802.1q”: no check of Virtual Lan tag is made and all packets follow Lan per port settings

2 “Fallback”: if Tagged packets have their Vlan Id into Vlan Configuration Table they follow the con-nection described into the table, otherwise they follow the Lan per port settings as Untagged pack-ets

3 “Secure”: no Untagged packet transits; only Tagged packets with Vlan Id listed into the table cantransit. For all pass configuration “Disable 802.1” should be selected. With Egress Mode as Unmodi-fied the outgoing packets at Lan–1 port exit Untagged or Tagged exactly as they were Untagged orTagged at the incoming port.

Fig.140 - Switch general settings

Link Loss Forwarding Histeresys

Click here for Port mapping andVLAN configuration table

Output policyfor Taggedpackets: Level2 priority, ifused, definedfor all the portsfor incomingpacketsalready Tagged

AL - MN.00107.E - 017 209

Fig.141 - Lan–1 interface settings

Fig.142 - Vlan settings for Lan–1

210 AL - MN.00107.E - 017

Fig.143 - Priority setting for Lan–1 and Internal Port

With Priority disabled no check is done into 802.1p priority Tag. All types of packets go into Default PriorityQueue.

Fig.144 - Vlan settings for Internal Port

InvomingUntaggedpackets at

Lan-1 are sent into output partqueue followingthis selection.

In this examplepackets areinserted into

queue 0

AL - MN.00107.E - 017 211

Fig.145 - Vlan Configuration Table

23.3 LOCAL LAN–1 PORT TO REMOTE LAN–1 PORT TRANSPARENT CONNECTION LAN PER PORT

Settings are done to transfer only Tagged traffic within some Vlans.

We want that Vlan 701, 702, 710 and 1, 2, 3 can pass into the radio link and all the other Tagged or Un-tagged packets should be blocked.

The line up of AL with LIM Ethernet is made with the help of LCT/SCT program. Please refer to Fig.137.First selection is Ethernet throughput and modulation scheme, in this example we select 16 Mbit/s andmodulation 16QAM (max throughput and modulation scheme depends on terms of licence provided by SiaeMicroelettronica). Select configuration 1+0 or 1+1 according system requirements.

Inside LCT, select tributary window (see Fig.138). If 2 Mbit/s tributaries are needed, inside the tributarywindow it is possible to activate a 2 Mbit/s input/output on the front panel. When the activation of required2 Mbit/s tributaries is completed, all the others 2 Mbit/s streams are automatically used for the Ethernettraffic. for instance with a 16 Mbit/s capacity if we use two 2 Mbit/s the capacity assigned to ethernet cir-cuits is automatically set to 16–2x2 = 12 Mbit/s full duplex.

See Fig.139 for general settings for the switch. All the used ports must be enabled, so enable Lan–1 andInternal Port, see Fig.140. The other port should be disabled. The correct Cable crossover arrangementmust be selected too. Enable LLF if needed only at the end of link line up.

Vlan settings for Lan–1 and Internal Port should be like in Fig.146 with Ingress Filtering Check as “Secure”and Engress Mode as “Tagged”. With this setting only Tagged packets with Vlan ID listed into the Vlan Con-figuration Table can transit. All Untagged packets are blocked at the incoming port and outgoing Taggedpackets don’t change.

A packet with Vlan ID XX can enter into the switch only if Incoming Port (Ingress port) is a member of theVlan XX, same packet will exit only from ports (Engress Port) which are members of Vlan XX. Vlan mem-bership is described into Vlan Configuration Table. A port can be member of no one, one or more Vlans.See Fig.147 for Vlan Configuration Table settings for our example.

212 AL - MN.00107.E - 017

Fig.146 - Virtual Lan input and output settings at Lan–1 port

Fig.147 - Vlan Configuration Table with some Vlans

Tagged incoming packet can be treated with FIFO policy or on the basis of their 802.1p priority tag andToS/DSCP value for IP packets. There are 4 queue at each output port. The decision about to which outputqueue to send a packet is defined into Ethernet switch window selections for 802.1p tag. Into Ethernetswitch window it is possible to select ToS/DSCP button to open window ToS/DSCP, in this window eachincoming ToS/DSCP value is associated with an output queue so it is possible to change the priority of theincoming packet.

When no info on priority is available, the packet is sent to Default Priority Queue using FIFO policy.

Into Lan–1 window select Priority (802.1q), into priority box there are some selections: with “Disable”switch doesn’t look at priority tag; with “802.1p” switch looks at Tag 802.1p only; with “IpToS” for IP pack-

AL - MN.00107.E - 017 213

ets only switch looks to ToS/DSCP identifier (into IP frame) only; with “802.1p – IpToS” switch looks firstto 802.1p tag and secondly to ToS/DSCP, see Fig.149; with “IpToS–802.1p” switch looks first to ToS/DSCPand secondly to Tag 802.1p.

Note: with IpToS switch looks to IP packet and ToS/DSCP doesn’t matter if the packets are tagged with802.1p or not.

In this example incoming tagged are tagged and it is necessary to transfer the packets with no change sothey must exit from output ports tagged, see Fig.147 and Fig.148.

Fig.148 - Add a new Vlan ID to Vlan Configuration Table with output tagged

Fig.149 - Layer 2 and Layer 3 priority management

IncomingUntaggedpackets at

Lan-1 are sentinto output partqueue followingthis selection.

In this examplepackets areinserted into

queue 0.

214 AL - MN.00107.E - 017

23.4 3 TO 1 PORT CONNECTIONS

Fig.150 - 3 to 1 port connections

In this example 3 local port must communicate with corresponding remote ports. All the ports share thesame radio channel but traffic originated and directed to Lan1 should be kept separated from traffic fromLan2 and Lan3 and viceversa.

Lan–1 to Lan–1 connection should transfer tagged packets with Vlan 1, 701, 760 and untagged packets.Unspecified tagged packets must be stopped. Lan–2 and Lan–3 have the same requirements. For all con-nections IP packets with high priority TOS should transferred at minimum delay.

23.5 3 TO 1 PORT CONNECTIONS, SETTINGS FOR UNTAGGED TRAF-FIC

The line–up of AL with LIM Ethernet is made with the help of LCT/SCT. Please refer to Fig.137.

First selection is Ethernet throughput and modulation scheme, in this example we select 16 Mbit/s andmodulation 16QAM (max throughput and modulation scheme depend on terms of licence provided by SiaeMicroelettronica). Select configuration 1+0 or 1+1 according system requirements.

Inside LCT, select Tributary window (see Fig.138).

If 2 Mbit/s tributaries sre needed, inside the tributary window it is possible to activate a 2 Mbit/s input/output on the front panel. When the activation of required 2 Mbit/s tributaries is completed, all the others2 Mbit/s streams are automatically used for the Ethernet traffic. For instance with a 8x2 Mbit/s capacity ifwe use two 2 Mbit/s the capacity assigned to Ethernet circuits is automatically set to 6x2 = 12 Mbit/s fullduplex.

Vlan Configuration Table will be defined in order to group traffic from Lan–1, Lan–2, Lan–3 to Port1. All theused ports must be Enabled.

Untagged traffic transits only if the selection for Ingress Filtering Check is disabled at each input port anda separated Vlan for Untagged traffic is set up for each port. See Fig.139, Fig.140, Fig.149, Fig.150,Fig.151.

Each port of the switch must be associated with a different Default VLAN ID in order to maintain the trafficcoming from different separated LANs, Lan–1 with default VID 3301, Lan–2 with default VID 3302, Lan–3with default VID 3303, for Lan–1 see Fig.151, Fig.152 and Fig.154.

The correct Cable Crossover arrangement must be selected too.

AL radio

port 1

switch

Lan-1

AL radio

port 1

switch

Lan-2

Lan-3

Nx2 Mbit/s

Local

Lan-1

Lan-2

Lan-3

Nx2 Mbit/s

Remote

AL - MN.00107.E - 017 215

Fig.151 - Input and output setting for VLANs at Lan–1 port

Fig.152 - Output port properties for VLAN 3301

216 AL - MN.00107.E - 017

Fig.153 - Typology 3 to 1, Virtual Lan Configuration

With the above settings inside the VLAN configuration Table only Untagged traffic is forwarded accross thebridge.

The same settings should be done inside the remote equipment. The above example shows the Virtual LanConfiguration Table in case of a link carrying the traffic of 3 independent LAN’s connected to Lan–1, Lan–2, Lan–3, which is split at the remote end among the outgoing Lan–1, Lan–2, Lan–3 ports, while using acommon radio link.

To prioritize some IP packets with high ToS/DSCP value it is possible to open PToS/DSCP window from Eth-ernet switch window and select the values of ToS for which the packet is sent to high priority Queue, seeFig.154.

Fig.154 - Output Queue selection on the basis of TOS/DSCP priority

Default VID assigned byuser to each port

Vlan 3301, 3302, 3303 are allowed to exit at Port1 with tags (Tagged). Different default Tag’s allow to

keep separate the traffic from Lan1, Lan2 andLan3 exiting at Port 1. At the remote end the traffic

is split and forwarded from Port1 to Lan1, Lan 2 and Lan3 without Tag to preserve the original

format.

TOS value description DSCP value description

Packets with AF43prioritylevel willgo into

Queue 3 atall ports

AF43 now goes to Queue 3, with this button AF43 will go to Queue 2

AL - MN.00107.E - 017 217

23.6 3 TO 1 PORT CONNECTIONS, SETTINGS FOR TAGGED AND UN-TAGGED TRAFFIC

If we want VLAN with Tag 701, 702 and 703 to transit between Lan–1 and Port–1 it is necessary to definePort 1 and Lan 1 as members of VLAN1, 701, 760 (see Fig.155 for VLAN 701 and do the same for VLAN1,760).

The VLAN Configuration Table will look like Fig.156.

For Lan–2 and Lan–3 we cannot use the same Vlan if we want to maintain traffic from Lan 1, 2, 3 separated.We must change the number of incoming Vlan for instance of 1, 701, 760 use 2001, 2701, 2760 for Lan–2 and 3001, 3701, 3760 for Lan–3. Connected equipment to Lan–2 port should be reprogrammed to useVlan 2001, 2701, 2760.

Connected equipment to Lan–3 port should be reprogrammed to use Vlan 3001, 3701, 3760.

To prioritize Ip packets with high ToS/DSCP value it is possible to open PToS/DSCP window from Ethernetswitch window and select the values of ToS for which the packet is sent to high priority Queue 3, seeFig.152. The same should be done inside the remote equipment.

Fig.155 - Output properties of VLAN 701

218 AL - MN.00107.E - 017

Fig.156 - Typology 3 to 1, Virtual Lan Configuration Table with Vlan

23.7 3 TO 1 CONNECTIONS: EXAMPLES OF PRIORITY MANAGEMENT

Example 1: To assign to Lan–1 and Lan–3 low priority and to Lan–2 high priority, while wanting Taggedand Untagged to be treated in a fair manner on each queue do as follow: select Priority Disable for Lan–1,Lan–2 and Lan–3; select Default Priority Queue equal to Queue 0 for lan–1 and Lan–3 (see Fig.143). SelectDefault Priority Queue equal to Queue 3 for Lan–2 (as in Fig.157).

Outgoing Untagged packets will take priority tag defined into input port, in this case 0. Tagged frames keeptheir tag.

Example 2: Wanting tagged frames to be treated according their actual priority and untagged packets withlow priority, all inputs should be configured as in Fig.158.

Layer 2 Priority assignment is not modified if inside the second folder of the Lan–X (1, 2, 3) configurationwindow Untagged Frame Egress Mode = Unmodified is selected as in Fig.159.

AL - MN.00107.E - 017 219

Fig.157 - Queue selection

Untagged packet arriving to Lan-2 are sent to output port Queues setting of this folder. In this example all incoming packets at LAN-2 are inserted into output

Queue 3 of output ports.Input priority: when Disable is not selected, Tagged frame are sent to queue

0,1,2,3 to port destination priority value; when Disabled is selected for this portswitch uses the Default Priority Queue for Tagged and Untagged frames, and

without really changing Tag into Incoming Tagged frames.

220 AL - MN.00107.E - 017

Fig.158 - Management of tagged frames according with their priority tag

Fig.159 - Incoming packets at Lan–1 will exit to other ports unchanged according their incom-ing status.

AL - MN.00107.E - 017 221

24 LINE–UP OF LIM FOR EAST/WEST REPEATER WITH DROP/INSERT

24.1 GENERAL

This paragraph deals with line–up of LIM for east/west repeater with details of SCT/LCT program relatedonly to cross connection facilities offered by internal cross connection matrix.

Assuming that the radio link is already in service, the following items are described:

• baseband configuration

• east or west configuration

• east or west presetting

• tributary enabling

• one direction tributary connection

• protected tributary connection (drop/insert)

• protection setting (Rx tributary switch).

• pass through E1 connection

The 2 Mbit/s streams connected to front panel of cross connection unit are called Tributaries while the 2Mbit/s streams connected to matrix east side or west side are called E1.

24.2 BASEBAND CONFIGURATION

Operations4 to enable the facilities offered by internal cross connection matrix are the following:

• inside LCT, open Equipment General window as in Fig.160.

• in Baseband Configuration field, select E–W 16x2.

4 Each command has to be applied and confirmed (push Apply button and Confirm button)

222 AL - MN.00107.E - 017

Fig.160 - Baseband configuration

24.3 EAST/WEST CONFIGURATION

Operations to configure the radio link toward one direction are the following:

• inside LCT, open Equipment General East (or West) window as in Fig.161

• select proper parameters in Capacity&Modulation Scheme field and right Link ID in Local Link IDfield (0 means “not used”).

Configuration of one direction can be different respect the other: if different capacities are selected,number of pass–through connection depend on this.

AL - MN.00107.E - 017 223

Fig.161 - Configuration of radio branch of one direction

24.4 EAST OR WEST PRESETTING

In case of bad quality of Rx signal from one direction, HBER on east or west branch, some features can beenabled: inside LCT as in Fig.162, open Equipment, open Gen. Preset East (or West) and:

• in order to insert AIS in case of HBER: select Enable in Hber –> Rx Ais Ins Rx Sw field

• in order to insert AIS in case of hardware failure in Rx: select Enable in Ais Rx Insertion field

• in order to cut the signal of service channels in case of HBER: select Enable in Service Squelch field

224 AL - MN.00107.E - 017

Fig.162 - Presetting of radio branch of one direction

24.5 TRIBUTARY ENABLING

In order to enable/disable the tributaries connected to the cross–connection unit, inside LCT as in Fig.163,open Base Band, open Tributary and click on central square of each tributary:

• central line open: the tributary is disabled

• central line closed: the tributary is enabled.

If the rectangle with a little black triangle is clicked, four alarms relevant the tributary appear: AIS, BER(BER = 10–6), OOF (Out Of Frame), OOMF (Out of MultiFrame).

AL - MN.00107.E - 017 225

Fig.163 - Tributary enabling window

24.6 ONE DIRECTION TRIBUTARY CONNECTION

The procedure to enable one tributary connection towards one direction is the following: inside LCT as inFig.164 open Cross Connection, select Configuration and drag and drop the slot of the tributary on theslot relevant the desired E1.

Fig.164 - Cross connection window in a link with East and West sides configured as 4x2 Mbit/s

226 AL - MN.00107.E - 017

24.7 PROTECTED TRIBUTARY CONNECTION

A protected tributary connection is a tributary connection towards both direction where one direction is aprotection for the other ( a sort of Drop/Insert in a PDH ring).

Procedure: inside LCT as in Fig.165 open Cross Connection, select Configuration and drag and drop theslot relevant the tributary “z“ on the slot relevant the desired E1 “x” first in one direction and after for theother on the slot relevant the desired E1 “y”. Position of involved E1 can be different (for example: x ≠ y ≠z).

Fig.165 - Protected tributary connection (Drop/Insert in a PDH ring) in a link with East and West configured as 16x2 Mbit/s

24.8 PROTECTION SETTING (Rx E1 SWITCH)

In a protected tributary connection one direction can be the preferential in Rx E1 switch or can be selectedmanually. Protection policy setting: inside LCT as in Fig.166, open Cross Connection, select Configura-tion and double click the tributary slot whose protection policy we want to set.

Preferential switch:

• Auto – One of the two E1 is selected in Rx. In case of E1 alarmed, the switch selects the one withoutalarms

• E1 East – E1 east is selected in Rx if both E1 are without alarms

• E1 West – E1 west is selected in Rx if both E1 are without alarms

Forced switch:

• Auto – One of the two E1 is selected in Rx. In case of E1 alarmed, the switch selects the one withoutalarms

• E1 East – E1 east is selected

• E1 West – E1 west is selected.

AL - MN.00107.E - 017 227

Fig.166 - Protection policy of a tributary stream

24.9 PASS–THROUGH E1 CONNECTION

A pass–through E1 connection is a connection between one East E1 stream and one West E1 stream.

How to set a Pass–through E1 connection: inside LCT as in Fig.167, open Cross Connection, select Con-figuration and drag and drop the slot relevant the East E1 on the slot relevant the West E1. East and WestE1 can be different.

Fig.167 - East/West Pass–through connection in a link with East and West configured as 16x2 Mbit/s

228 AL - MN.00107.E - 017

AL - MN.00107.E - 017 229

Section 5.MAINTENANCE

25 PERIODICAL CHECKS

25.1 GENERAL

Periodical checks are used to check correct operation of the radio equipment without the presence of anyalarm condition.

The SCT/LCT programs running on the PC are used for the purpose.

25.2 CHECKS TO BE CARRIED OUT

The following checks must be carried out:

• check of the trasmitted power;

• check of the received field strenght (the reading must match the value resulting from hop calcula-tions);

• check of the bit error ratio and the hop performances.

For checking procedures, please refer to SCT/LCT program and relevant help–on line.

230 AL - MN.00107.E - 017

26 TROUBLESHOOTING

26.1 GENERAL

The AL equipment consists of the following replaceable parts:

• LIM

• RIM

• CONTROLLER

• ODU.

Purpose of the troubleshooting is to pinpoint the faulty part and replace it with spare.

Warning: the replacement of the faulty CONTROLLER module with spare causes the spare CONTROLLERto be re–programmed. To the purpose refer to chapter 20 INSTALLATION ONTO THE POLE OF THE ODUWITH INTEGRATED ANTENNA (KIT V32307, V32308, V32309) and 21 INSTALLATION ONTO THE POLE OFTHE 4 GHz ODU WITH SEPARATED ANTENNA (KIT V32323) for the relevant procedure.

26.2 TROUBLESHOOTING PROCEDURE

Troubleshooting starts as soon as one of the following alarm condition: IDU/ODU/REM is switched ON onthe IDU panel from (see Fig.168) or alarm messages are displayed by managers SCT/LCT.

Two methods are used to troubleshoot the cause of fault:

• loop facilities

• alarm message processing using the manager SCT/LCT

26.2.1 Loop facilities

The equipment is provided with different loops with the aid to locate the faulty equipment and then thefaulty module the equipment consists of.

Warning: the majority of loops causes the traffic to be lost.

The available loops are the following:

• local tributary loops: usually used to test the cables interfacing the equipment upstreams

• remote tributary loops: usually used to test the two direction link performance making use of anunused 2 Mbit/s signal.

• baseband loop: it permits to test the LIM circuits

• IDU loop: it permits to test the complete IDU

• RF loop: it permits to test the complete radio terminal

AL - MN.00107.E - 017 231

26.2.2 Alarm messages processing

When an alarm condition occurs, the equipment generates a number of alarm messages that appear onthe SCT windows ie: log history area and equipment view current alarm.

Investigation on the alarm message meaning permits to troubleshoot the faulty module.

Alarm message organisation

The alarms (traps) are organized as alarm grouping relevant to a specific functions performed by the equip-ment.

The alarm grouping is available only in the view current alarm submenu.

What follows is the list of the alarm grouping:

• COMMON – alarms which are not related to a specific part of the equipment but relevant to the linkas EOC radio link alarm or link telemetry fail. If these alarms are ON the link is lost. Investigationmust be made on a possible bad propagation or equipment failure. See the condition of the othersalarm grouping.

• LIM – This grouping may generate alarms for the following causes:

- external fault: tributary loss signal

- LIM failure: i.e. multiplexer/demultiplexer failure or modulator/demodulator failure.Warning: The modulator/demodulator circuitry is spread into the LIM and RIM modules. Substi-tution method is the only way to pingpoint the faulty module

- alarm that can be propagated by RIM or ODU modules as baseband Rx alarm.The Baseband loop permits to discover if the cause of this alarm activation is external or internalto the LIM. If yes the module must be replaced.

• RIM – This grouping may generate alarms for the following causes:

- external fault: demodulator fail alarm and local ODU alarm are generated when the ODU be-comes faulty.

- RIM failure – power supply alarm along with cable short/open alarms or modulator/demodulatoralarms are activated.Warning: the modulator/demodulator circuitry is spread into the LIM and RIM modules. Substi-tution methods is the only way to pinpoint the faulty module.

• RT – This grouping may generate alarms for the following causes:

- external fault: Rx power low alarm is generated given by a bad propagation or by a faulty remoteterminal.

- ODU failure: PSU fail alarm or RF VCO alarm or RT IF alarm is activated. If this happens, replacethe ODU.

• UNIT – This grouping generates alarms when one of the units, the equipment consists of, is faultyor does not respond to the controller polling. Replace the faulty unit.

• CONTROLLER – There is not an alarm message relevant to a controller module failure. An alarmcondition causes Led IDU to steady lights up.Warning: The replacement of controller module requires the spare to be realigned (see chapter 20INSTALLATION ONTO THE POLE OF THE ODU WITH INTEGRATED ANTENNA (KIT V32307, V32308,V32309) or 21 INSTALLATION ONTO THE POLE OF THE 4 GHz ODU WITH SEPARATED ANTENNA(KIT V32323)).

Fig.168 - IDU front

1 UNITA'Trib: M-N-O-PTrib: I-J-K-LTrib: E-F-G-H


Trib: A-B-C-D

FAIL

RIDU ODU

TESTREM

TX RX12 SIDE

2Mb/sCH2CH1

Q3

RS232USER IN/OUTLCT

A WAY

Alarm area

232 AL - MN.00107.E - 017

27 EQUIPMENT CONFIGURATION UPLOAD/SAVE/DOWNLOAD. PARAMETER MODIFICATION AND CREATION OF VIRTUAL CONFIGURATIONS.

27.1 SCOPE

This chapter describes the procedure to create configuration files.

Equipment configuration files must be used in case of replacing a faulty CONTROLLER module with thespare. To the purpose it is necessary to upload, from each equipment the network consists of, equipmentconfigurations and save them on three configuration files.

It is advisable to do it upon the first installation. Configuration file download on the spare CONTROLLERpermits to restore previous operating condition. It is also possible to create virtual configuration withoutbeing connected to equipment.

27.2 PROCEDURE

To configure the spare CONTROLLER the following must be uploaded/saved on the file/downloaded:

• general equipment configuration

• addresses and routing table

• remote element table

To do it, run the SCT/LCT program (see relevant documentation available on line) until “Subnetwork CraftTerminal” application window is displayed.

27.2.1 General equipment configuration

Upload and save

1 Select Open Configuration Template from Tools menu following this path: Tools → EquipmentConfiguration Wizard → File → Open Configuration Template.The system will show Template Selection window.

2 Choose from Template Selection window the type of equipment and version (for instance radio PDHAL: 2x2, 4x2, 8x2, 16x2 Mbit/s) from which you want to make the upload.

3 Press OK.The system will display the Configuration Wizard window referring to the selected type of equipmentand version (example: radio PDH AL: 2x2, 4x2, 8x2, 16x2 Mbit/s)

4 Press Upload push button and select Get Current Type Configuration from Equipment.The system will display the Upload Configuration File window. The window will show the equipmentlist.

5 Select the equipment you wish to upload a configuration file from (normally the local quipment) byactivating the relevant box.

AL - MN.00107.E - 017 233

6 Press OK.The system displays the Communication Status window where is pointed out:

- the operation status: upload in progress/complete.

- errors area: where error messages relevant to possible abort of the operation are displayed.

At the end of the operation by pressing OK, the system displays, the uploaded equipment parame-ters present into the Configuration Wizard window.

7 Save the uploaded configuration into a file by selecting Save File As command from File SaveSave File As.The system will display Save This Config. File.Type the file name into the proper box (with “cfg” extension) and set the path to be used to savethe file.

8 Press Save push button to finish.

Download

After having installed the spare LIM proceed as follows:

1 Select Open File from Tools menu following this path: Tools menu → Equipment ConfigurationWizard → File → Open → Open File.The system will display Select a Config. File window.

2 Select the wanted file and open it by pushing Open push button. The system will display the filecontent.

3 Press Download push button and select Configure Equipment as Current File.

4 Activate the box relevant to the equipment you wish to download configuration file to (normally thelocal equipment) and select Configure Equipment as Current File.


- the operation status: upload in progress/completed

- errors area: where error messages relevant to possible abort of operation are displayed.

6 Press OK to finish.

27.2.2 Addresses and routing table

Upload and save

1 Select Open Address Configuration Template from Tools menu following this path: Tools menu→ Equipment Configuration Wizard → File → Open → Open Address Configuration Template .The system will show the mask of the Address Comfiguration Template.

2 Press Upload push button and select Get Current Type Configuration from Equipment.The system will display the Upload Configuration File window.

3 Select the equipment you wish to upload a configuration from (normally the local equipment).


- the operation status: upload in progress

- errors area: where error messages relavant to possible abort of the operation are displayed.

At the end of the operation, the system displays, the equipment parameter present into the Con-figuration Wizard window.

5 Save the uploaded configuration into a file by selecting Save File As command from File → Save→ Save File As

234 AL - MN.00107.E - 017

The system will display the Save This Config. File window. Into the proper boxes type the file name(with “cfg” extension) and set the path to be used to save the file.

6 Press Save push button to finish.

Download

1 Select Open File command from Tools menu following this path: Tools → Equipment ConfigurationWizard → File → Open → Open File.The system will display Select a Config. File window.

2 Select the wanted file and open it by pushing Open push button. The system will display the pa-rameters contained into the file.

3 Press Download push button and select Configure Equipment as Current File.

4 Activate the box relevant to the equipment you wish to download configuration file to (normally thelocal equipment).

5 Press OK.The system will display Download Type Selection window. Activate boxes IP port addresses config-uration e Routing table. If OSPF facility is enabled, you can only select Standard (IP/Communi-cation/OSPF) Settings.

6 Press OK.The system will show a warning indicating the possibility to procede the download or not.

7 Press OK.The system will show the Download in progress.

8 At the end of the download will be shown the file content.

27.2.3 Remote Element Table

Upload and save

1 Select window Subnetwork Configuration Wizard from menu Tools.

2 Select equipment Local from Actual Configuration Area and then press Retrieve. In New configu-ration area is shown the list of remote equipment included the local.

3 Press Save to file. The system will show window Save remote element configuration file.

4 Save the file with Rel extension and then press Save to finish.

Download

1 Select Subnetwork Configuration Wizard from menu Tool.

2 Press Read from file and then select the desired file (with Rel extension).

3 Press Open push button and then the system will show the file content into the New ConfigurationArea.

4 Select into the Actual configuration area the equipment you desire to download, the list of the re-mote element included the local.

5 Press Send to send the list.

AL - MN.00107.E - 017 235

28 BACK UP FULL EQUIPMENT CONFIGURATION WITHOUT POSSIBILITY OF MODIFYING THE PA-RAMETERS

28.1 SCOPE

This chapter describes the procedure to back up the full equipment configuration. This permits to recoverthe original equipment configuration in case of faulty CONTROLLER module replacement with spare.

28.2 CONFIGURATION UPLOAD

Foreword: it is advisable to upload the configuration during the first installation. Proceed as follows:

1 Select “Equipment Configuration Wizard” from menu “Tools”; “Equipment Configuration Wiz-ard” window will be displayed.

2 Select “Upload” and then “Backup Full Equipment Configuration”; “Template Selection” win-dow will be displayed.

3 Select the correct equipment template (in case of uncorrected choice the backup will be aborted).

4 Press OK and then select the equipment to be uploaded from “Upload Configuration File” window.

5 Press OK and then edit the file name from “Save backup as” window.

6 Press Save; “Equipment Configuration Wizard: Complete Backup” window will appear.The window shows dynamically the backup procedure. If everything is OK, at the end of the uploadwill appear the word “done” showing the procedure success.


28.3 CONFIGURATION DOWNLOAD

Once the spare LIM has been installed proceed as follows:

1 Select “Equipment Configuration Wizard” from menu “Tools”. “Equipment Configuration Wizard”window will be displayed.

2 Select “Download” and than “Restore Full Equipment Configuration” from Equipment Config-uration Wizard. “Select Backup File” window will be displayed.

3 Select the wanted backup file with extension .bku and then press Open. “Download ConfigurationFile” window will be displayed.

4 Select the equipment to download and then press OK; “Equipment Configuration Wizard: Completerestore” window will be displayed. This window shows dynamically the download operation. Theword “done” indicates that download has been successfully.


Warning: In case of EOC alarm proceed to restart the equipment.

236 AL - MN.00107.E - 017

AL - MN.00107.E - 017 237

Section 6.PROGRAMMING AND SUPERVI-SION

29 PROGRAMMING AND SUPERVISION

29.1 GENERAL

The radio equipment was designed to be easily programmed and supervised.

The following tools are implemented to the purpose:

• SCT Subnetwork Craft Terminal + LCT Local Craft Terminal. They are used for remote and local con-trol of a subnetwork consisted of a maximum of 100 AL radio equipment.

• NMS5–UX Network Management. It is used for the remote control of an entire network consisted ofdifferent SIAE equipment including AL family radio equipment.

For details refer to relevant documentation. SCT/LCT documentation is available as help on–line.

238 AL - MN.00107.E - 017

AL - MN.00107.E - 017 239

Section 7.COMPOSITION

30 COMPOSITION OF THE INDOOR UNIT

30.1 GENERAL

The IDU is available in following versions:

• 1+0 unduplicated

• 1+0/1+1 standard (see Fig.169)

• 1+1 ethernet high and low capacity

• 1+1 full duplicated

• 1+1 high capacity (see Fig.170)

• 2+0 repeater E/W (see Fig.171).

The 1+0 version is considered the minimum replaceable part while the 1+1 standard/full duplicated con-sists of plug–in modules as LIM/RIM/CONTROLLER that can individually be replaced.

Module part number, hardware layout and equipment composition are subject to change without notice.

30.2 IDU PART NUMBER

Every version is identified by a specific part number shown on a label (see Fig.172) attached on IDU, topleft side. Important power supply informations are also written.

The P/N consists of seven digits with the following meaning:

240 AL - MN.00107.E - 017

Tab.56- IDU part number

30.3 COMPOSITION OF THE INDOOR UNIT

1+0/1+1 standard, Ethernet version

The IDU consists of LIM/RIM/CONTROLLER modules made–up in different versions. Each module is identi-fied through internal label indicating the relevant P/N.

The P/Ns are the following:

- LIM D12034 option SUB_D 75 ohmD12035 option SUB–D 120 ohmD12036–02 option 1.0/2.3/75 ohmD12089–02 Ethernet 64 Mbit/s (low capacity)D12100 Ethernet 100 Mbit/s (high capacity)

- RIM D12037D26000 100 Mbit/s

- CONTROLLER D12031 RJ45D12032 BNCD12033 AUI

1+1 2 units

The IDU consists of LIM/RIM/CONTROLLER modules made–up in different versions. Each module is identi-fied through internal labels indicating the relevant P/N.

- LIM D12036–02 1.0/2.3 75 OhmD12086 expansion trib. 17 to 32 75 Ohm

- RIM D12037

- CONTROLLER D12031 RJ45D12032 BNCD12033 AUID12094 coldfire BNC (LCT USB in AL E/W)

Digit Letter/number Meaning

1 GFunctional assembly of units completed by a mechanical

structure

2 A AL equipment

3 I Indoor installation

4 to 7

000100020003000400520054

0061–100620066

1+1 – 1 unit – 120 ohm BNC1+1 – 1 unit – 120 ohm RJ45

1+1 – 1 unit – 75 ohm BNC 1.0/2.31+0 – 1 unit – 120 ohm RJ45

1+1 – 2 unit – 120 ohm BNC Full protected1+1 – 2 unit – 75 ohm BNC 32x2 1.0/2.3

1+1 – 1 unit – Ethernet 75 ohm 1.0/2.3 64 Mbit/s RJ452+0 – 2 unit – E/W 75 ohm BNC 1.0/2.3

1+1 – 1 unit – Ethernet 75 ohm 1.0/2.3 100 Mbit/s RJ45

AL - MN.00107.E - 017 241

2+0 2 units

The IDU consists of LIM/RIM/CONTROLLER modules made–up in different versions. Each module is identi-fied through internal labels indicating the relevant P/N.

- LIM D12089 matrix in AL E/W 1.0/2.3 75 OhmD12052–02 processor unit

- RIM D12037

- CONTROLLER D12094 coldfire BNC (LCT USB in AL E/W)

Fig.169 - Standard IDU GAI0003

Fig.170 - IDU GAI0054

Fig.171 - IDU GAI0062

Fig.172 - IDU P/N

RIDUODU

TESTREM

TX RX12 SIDE

2Mb/sCH2CH1Q3

RS232LCT

A WAY

USER IN/OUT

FAIL1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

RIMRIM

12

+ -

-+ 21

RIMRIM

RIMRIM

12

+ -

-+ 21

RIMRIM

16151413121110987654321FAIL

32313029282726252423222120191817FAIL

Q3WAYA


SIDE21

RXTX

REMTEST

ODUIDUR

+

RIMRIM

12

21

RIMRIM

FAIL

FAIL

Q3WAYA


SIDE

RXTX

REMTEST

ODUIDU

16151413121110987654321FAIL

242 AL - MN.00107.E - 017

31 COMPOSITION OF THE INDOOR UNIT IDU PLUS

31.1 GENERAL

The IDU Plus is available in 1RU and 2RU. Main configurations are:

• terminal

• drop/insert

• nodal.

Part number, hardware layout and equipment composition can change without notice.

31.2 IDU PLUS PART NUMBER

Each version id identified by a specific part number shown on a label (see Fig.178), attached on IDU, topleft side. Important power supply information are also written.

The P/N consists of seven digits with the following meaning:

Tab.57 - IDU Plus part number

31.3 COMPOSITION OF THE IDU PLUS

The IDU Plus consits of LIM/RIM/CONTROLLER/MATRIX modules made-up in different versions. Each mod-ule is identified through internal label indicating the relevant P/N.

The P/Ns are the following:

- LIM D12139 53x2 processorD12137 LIM 32E1

- RIM D26001

Digit Letter/number Description

1 GFunctional assembly of units completed by a mechanical

structure

2 A AL equipment

3 I Indoor installation

from 4 to 7

01150116012301240126

1RU, 32E1, 1+0 terminal1RU, 32E1, 1+1 terminal2RU, 53E1, 1+1 terminal

2RU, STM1, E1 nodale2RU, 32E1, drop/insert

AL - MN.00107.E - 017 243

- MATRIX D12146 Matrix node STM1 16E1

- EQUIPMENT CONTROLLER D12148 Equipment controller

Subrack can be 1RU (see Fig.173) or 2RU (see Fig.174) high.

Fig.173 - IDU Plus 1RU composition

Fig.174 - IDU Plus 2RU composizione

31.3.1 1+0 1RU 32E1 Terminal

The IDU consits of LIN/RIM/CONTROLLER modules made-up in different versions. Each module is identifiedthrough internal labels indicating the relevant P/N.

Example: GAI 0115

- position 1 LIM D12137

- position 2 RIM D26001

- position 3 Eq. controller D12148

31.3.2 1+1 1RU 32E1 terminal


Example: GAI 0116





Fig.175 - IDU Plus 1+1 terminal

1 3

2 4

1 5

2 6

3 7

4 8

+ -

-+

Q3/1R

IDU ODU

TESTREM

SIDE


A WAYQ3/2

FAIL


244 AL - MN.00107.E - 017

31.3.3 1+1 terminale 2RU 53E1


Example: GAI 0123



- position 3 53E1 expansion D12151



Fig.176 - 53E1 1+1 terminal

31.3.4 2RU 32E1 drop/insert


Example: GAI 0126


- position 2 53E1 processor D12139

- position 3 Matrix 32E1 D12143

- position 5,6 RIM D26001

Fig.177 - Drop/insert IDU Plus 32E1

31.3.5 Nodal 2RU STM1 E1


FAIL


Q3/2WAYA


SIDE

REM TEST

ODUIDUR

Q3/1

+ -

-+

FAIL

Trib: 33-40 Trib: 41-48 Trib: 49-53

Q3/1R

IDU ODU

TESTREM

SIDE


A WAYQ3/2

+ -

-+

FAIL

FAIL


AL - MN.00107.E - 017 245



- position 3 Matrix node STM1 16E1D12146


- position 5,6,7,8 RIM D26001

Fig.178 - IDU Plus P/N

246 AL - MN.00107.E - 017

32 COMPOSITION OF OUTDOOR UNIT

32.1 GENERAL

The ODU consists of a mechanical structure that houses all the transceiver circuitry. In 1+1 version theconnection to the antenna is performed through a passive hybrid.

Both transceiver and hybrid are offered in different versions depending on the operating bands, the anten-na configuration etc...

A label (see Fig.179) attached on the ODU structure shows the most significant parameters as go/returnfrequency value, subband, operating band and part number.

From ODU name (e.g. AL18 or AS18) you can see the version of used ODU.

For example the P/N GA0001/001, shown by the label, identifies the following:

- AL18 18 GHz operating band

- G/R 1010 MHz go/return frequency value

- SB 1L operating subband low

- S/N serial number

- DATA CODE month and year

A further label is available attached on the hybrid body as per example of Fig.180.

It shows the position of each transceiver and the type of coupler, balanced or unbalanced.

Warning: In case of unbalanced type the lowest loss is always referred to branch 1.

In Tab.58 various ODU versions and hybrid part number are listed.

Part number, hardware layout and equipment composition are subject to change without notice.

Tab.58 - Example of ODU part number and hybrid part number

RF Band in GHzODU Hybrid with support

1L 1H Balanced Unbalanced

13 GA9018 GA9019 V32218 V32219

18 GA9000 GA9001 V32184 V32185

23 GA9006 GA9007 V32186 V32187

38 GA9014 GA9015 V32210 V32230

AL - MN.00107.E - 017 247

Fig.179 - Label attached on the ODU mechanical body AL

GA0001/001

248 AL - MN.00107.E - 017

Fig.180 - Position of the label on the hybrid body and typical hybrid characteristics

AL - MN.00107.E - 017 249

Section 8.LISTS AND SERVICES

33 LIST OF FIGURES

Fig.1 - Components electrostatic charge sensitive indication................................................ 12

Fig.2 - Elasticized band .................................................................................................. 12

Fig.3 - Coiled cord ......................................................................................................... 12

Fig.4 - Laser indication................................................................................................... 12

Fig.5 - WEEE symbol - 2002/96/CE EN50419 .................................................................... 13

Fig.6 - 1+1 ODU typical configuration with integrated antenna ............................................ 23

Fig.7 - 1+1 IDU typical configuration – 2x2, 4x2, 8x2, 16x2 Mbit/s ...................................... 23

Fig.8 - 1+1 equipment block diagram............................................................................... 24

Fig.9 - 1+0 non expandable equipment block diagram........................................................ 25

Fig.10 - 1+1 IDU standard configuration – Micro coaxial tributary connectors ........................ 32

Fig.11 - 1+1 IDU standard – Ethernet tributary connectors ................................................. 32

Fig.12 - 1+1 IDU standard – D type tributary connectors.................................................... 33

Fig.13 - 1+1 IDU (34, 2x34 Mbit/s) ................................................................................. 33

Fig.14 - 1+1 IDU high capacity configuration – Micro coaxial tributary connectors .................. 33

Fig.15 - 1+1 IDU high capacity configuration – D type tributary connectors........................... 33

Fig.16 - IDU Plus 1U - 32x2 Mbit/s .................................................................................. 33

Fig.17 - IDU Plus 1+1 2U - 16x2 Mbit/s + STM1 nodale 4+0 .............................................. 33

Fig.18 IDU Plus 1+1 2U (up to 53x2 Mbit/s)...................................................................... 34

Fig.19 - 1+0 ODU AL with separated antenna (pole mounting) ............................................ 34

Fig.20 - 1+1 ODU AL with separated antenna.................................................................... 34

Fig.21 - 1+0 ODU AL with integral antenna (pole mounting) ............................................... 35

Fig.22 - 1+1 ODU AL with integral antenna (pole mounting) ............................................... 35

Fig.23 - 1+1 ODU AL with separated antenna (wall mounting)............................................. 36

250 AL - MN.00107.E - 017

Fig.24 - ODU AS 1+1 with separated antenna ................................................................... 37

Fig.25 - LIM block diagram – Tx side................................................................................ 51

Fig.26 - Single tributary multiplexing/demultiplexing.......................................................... 52

Fig.27 - 2x2 Mbit/s multiplexing/demultiplexing................................................................. 52



Fig.30 - 16x2 Mbit/s multiplexing/demultiplexing............................................................... 54

Fig.31 - 32x2 multiplexing/demultiplexing ........................................................................ 55

Fig.32 - Multiplexing/demultiplexing 2x34 Mbit/s ............................................................... 55

Fig.33 - LIM block diagram – Rx side ............................................................................... 56

Fig.34 - RIM block diagram............................................................................................. 57

Fig.35 - Main and peripheral controller connection ............................................................. 58

Fig.36 - IP/IPoverOSI protocol stack ................................................................................ 59

Fig.37 - IDU loopback .................................................................................................... 60

Fig.38 - IDU + 1RU composition ...................................................................................... 61

Fig.39 - IDU + 2RU composition ...................................................................................... 62

Fig.40 - IDU Plus 2RU drop/insert and nodal structure........................................................ 64

Fig.41 - Nodal connections ............................................................................................. 65

Fig.42 - LIM block diagram - Tx side ................................................................................ 72

Fig.43 - LIM block diagram - Rx side ................................................................................ 73




Fig.47 - IDU loopback .................................................................................................... 76

Fig.48 - LIM block diagram – Tx side................................................................................ 89

Fig.49 - Single tributary multiplexing/demultiplexing.......................................................... 90




Fig.53 - 16x2 Mbit/s multiplexing/demultiplexing............................................................... 92

Fig.54 - Multiplexing/demultiplexing 2x34 Mbit/s ............................................................... 92

Fig.55 - LIM block diagram – Rx side ............................................................................... 93




Fig.59 - IDU loopback .................................................................................................... 96

Fig.60 - LIM Ethernet 2 Mbit/s block diagram .................................................................... 97

Fig.61 - Tag control into field .......................................................................................... 98

Fig.62 - Output queues .................................................................................................. 98

Fig.63 - ToS/DSCP tag position into IP packets.................................................................. 98

Fig.64 - ToS/DSCP......................................................................................................... 99

Fig.65 - IDU for E/W repeater ....................................................................................... 100

Fig.66 - Block diagram of IDU with Cross Connection Matrix.............................................. 104

AL - MN.00107.E - 017 251

Fig.67 - RIM block diagram........................................................................................... 108

Fig.68 - Main and peripheral controller connection ........................................................... 109

Fig.69 - IP/IPoverOSI protocol stack .............................................................................. 110

Fig.70 - IDU E/W loops ................................................................................................ 111

Fig.71 - 1+0 AL ODU .................................................................................................. 117

Fig.72 - 1+1 AL ODU ................................................................................................... 117

Fig.73 - 1+0 AS or Universal ODU version ...................................................................... 118

Fig.74 - ODU block diagram (both versions).................................................................... 119

Fig.75 - 1+1 hot stand–by 1 antenna............................................................................. 120

Fig.76 - 1+1 hot stand–by 2 antennas ........................................................................... 120

Fig.77 - ATPC operation ............................................................................................... 121

Fig.78 - Grounding connection ...................................................................................... 125

Fig.79 - User connector position, 1+0/1+1 standard version ............................................. 127

Fig.80 - User connector posistion 1+0/1+1 standard version with Ethernet and 2 Mbit/s ....... 127

Fig.81 - User connector position for IDU 1+0 compact (2, 2x2, 4x2 Mbit/s)......................... 127

Fig.82 - User connector position for IDU 1+0 compact (2, 2x2, 4x2, 8x2 Mbit/s).................. 127

Fig.83 - IDU Plus 1+1 (2x2 - 32x2 Mbit/s) ...................................................................... 135

Fig.84 - IDU Plus 1+1 (up to 53x2 Mbit/s) ...................................................................... 135

Fig.85 - Pin-out Tributary IN/OUT 50 SCSI...................................................................... 136

Fig.86 - Antisliding strip ............................................................................................... 144

Fig.87 - 60–114 mm pole supporting plate fixing ............................................................. 145

Fig.88 - Adapting kit for 219 mm pole ............................................................................ 146

Fig.89 - Mounting position ............................................................................................ 147

Fig.90 - Possible positions of the support with ODU fast locking mechanism ....................... 148

Fig.91 - Band-it pole mounting kit ................................................................................. 149

Fig.92 - Installation onto the pole of the supporting plate ................................................. 150

Fig.93 - Position of the ODU body depending on the polarisation for 1+0. For 1+1 the polarisation is always vertical: handle at the left side. ........................................................................ 151

Fig.94 - ODU body reference tooth ................................................................................ 152

Fig.95 - Final ODU assembly of 1+1 version.................................................................... 153

Fig.96 - ODU grounding ............................................................................................... 154

Fig.97 - Wall supporting plate ....................................................................................... 158

Fig.98 - Support with ODU fast locking mechanism .......................................................... 159

Fig.99 - Mounting possible positions............................................................................... 160

Fig.100 - Installation onto the wall of the supporting plate ................................................ 161

Fig.101 - Position of the ODU body depending on the polarisation for 1+0. For 1+1 the polarisation is always vertical: handle at the left side. ........................................................................ 162

Fig.102 - ODU body reference tooth............................................................................... 163

Fig.103 - Final ODU assembly of 1+1 version .................................................................. 164

Fig.104 - ODU grounding.............................................................................................. 165

Fig.105 - Centering ring position ................................................................................... 170

Fig.106 - Antislide strip ................................................................................................ 171

Fig.107 - Support mount on pole ................................................................................... 172

Fig.108 - Supporting system position ............................................................................. 173

252 AL - MN.00107.E - 017

Fig.109 - Hole E .......................................................................................................... 173

Fig.110 - Antenna installation on pole support................................................................. 174

Fig.111 -Position of the ODU handle depending on the polarisation for 1+0. For 1+1 the polarisation is always horizontal. Handle at the right side.................................................................... 174

Fig.112 - Support system for ODU housing and reference tooth in evidence ........................ 175


Fig.114 - ODU housing final position for vertical polarization ............................................. 177

Fig.115 - ODU housing final position for horizontal polarization.......................................... 177

Fig.116 - Hybrid and twist disk...................................................................................... 178

Fig.117 - Hybrid mount on pole support ......................................................................... 179

Fig.118 - ODU housing final position for 1+1 version........................................................ 180

Fig.119 - Vertical and horizontal adjustments.................................................................. 181

Fig.120 - Antenna aiming block ..................................................................................... 182


Fig.122 - 1+0 pole mounting ........................................................................................ 188


Fig.124 - Position of the ODU handle depending on the polarisation for 1+0. For 1+1 the polarisa-tion is always horizontal. Handle at the right side. ............................................................ 189

Fig.125 - 1+0 support.................................................................................................. 190

Fig.126 - ODU housing final position for both polarization ................................................. 191

Fig.127 - Antenna aiming ............................................................................................. 192


Fig.129 - Hybrid and twist disk...................................................................................... 194

Fig.130 - Hybrid installation.......................................................................................... 195

Fig.131 - 1+1 ODUs installation .................................................................................... 196

Fig.132 - Pole installation of the support......................................................................... 199

Fig.133 - Installation of the hybrid on the pole support (only for 1+1 version) ..................... 200

Fig.134 - Installation of the ODU on the support.............................................................. 201

Fig.135 - ODU grounding and connection of the cables to hybrid and antenna ..................... 202

Fig.136 - Detected voltage versus Rf received signal ........................................................ 205

Fig.137 - Local Lan–1 port to remote Lan–1 port connection ............................................. 206

Fig.138 - Selection of Ethernet Throughput ..................................................................... 207

Fig.139 - Tributary enable ............................................................................................ 207

Fig.140 - Switch general settings................................................................................... 208

Fig.141 - Lan–1 interface settings.................................................................................. 209

Fig.142 - Vlan settings for Lan–1................................................................................... 209

Fig.143 - Priority setting for Lan–1 and Internal Port ........................................................ 210

Fig.144 - Vlan settings for Internal Port.......................................................................... 210

Fig.145 - Vlan Configuration Table ................................................................................. 211

Fig.146 - Virtual Lan input and output settings at Lan–1 port ............................................ 212

Fig.147 - Vlan Configuration Table with some Vlans ......................................................... 212

Fig.148 - Add a new Vlan ID to Vlan Configuration Table with output tagged ....................... 213

Fig.149 - Layer 2 and Layer 3 priority management ......................................................... 213

Fig.150 - 3 to 1 port connections................................................................................... 214

AL - MN.00107.E - 017 253

Fig.151 - Input and output setting for VLANs at Lan–1 port............................................... 215

Fig.152 - Output port properties for VLAN 3301............................................................... 215

Fig.153 - Typology 3 to 1, Virtual Lan Configuration......................................................... 216

Fig.154 - Output Queue selection on the basis of TOS/DSCP priority................................... 216

Fig.155 - Output properties of VLAN 701 ........................................................................ 217

Fig.156 - Typology 3 to 1, Virtual Lan Configuration Table with Vlan................................... 218

Fig.157 - Queue selection............................................................................................. 219

Fig.158 - Management of tagged frames according with their priority tag............................ 220

Fig.159 - Incoming packets at Lan–1 will exit to other ports unchanged according their incoming status. ........................................................................................................................ 220

Fig.160 - Baseband configuration .................................................................................. 222

Fig.161 - Configuration of radio branch of one direction.................................................... 223

Fig.162 - Presetting of radio branch of one direction ........................................................ 224

Fig.163 - Tributary enabling window .............................................................................. 225

Fig.164 - Cross connection window in a link with East and West sides configured as 4x2 Mbit/s ... 225

Fig.165 - Protected tributary connection (Drop/Insert in a PDH ring) in a link with East and West configured as 16x2 Mbit/s ............................................................................................. 226

Fig.166 - Protection policy of a tributary stream .............................................................. 227

Fig.167 - East/West Pass–through connection in a link with East and West configured as 16x2 Mbit/s................................................................................................................................ 227

Fig.168 - IDU front ...................................................................................................... 231

Fig.169 - Standard IDU GAI0003................................................................................... 241

Fig.170 - IDU GAI0054 ................................................................................................ 241

Fig.171 - IDU GAI0062 ................................................................................................ 241

Fig.172 - IDU P/N........................................................................................................ 241

Fig.173 - IDU Plus 1RU composition............................................................................... 243

Fig.174 - IDU Plus 2RU composizione............................................................................. 243

Fig.175 - IDU Plus 1+1 terminal .................................................................................... 243

Fig.176 - 53E1 1+1 terminal......................................................................................... 244

Fig.177 - Drop/insert IDU Plus 32E1 .............................................................................. 244

Fig.178 - IDU Plus P/N ................................................................................................. 245

Fig.179 - Label attached on the ODU mechanical body AL ................................................. 247

Fig.180 - Position of the label on the hybrid body and typical hybrid characteristics .............. 248

254 AL - MN.00107.E - 017

AL - MN.00107.E - 017 255

34 LIST OF TABLES

Tab.1 - Artificial respiration .............................................................................................11

Tab.2 - Transmission capacity ..........................................................................................27

Tab.3 - TDM plus Ethernet mixed transport structure ..........................................................27

Tab.4 - Modulation used according to bit rate and RF channel space......................................28

Tab.5 - Modulation, capacity, channeling and size for IDU Plus .............................................29

Tab.6 - Nominal output power 1 dB tolerance - (1+0 version) ODU AL/ODU AS .....................29

Tab.7 - Threshold 2x2, 4x2 Mbit/s ....................................................................................30

Tab.8 - Threshold 8x2 ..... 100 Mbit/s ...............................................................................30

Tab.9 - Power consumption .............................................................................................31

Tab.10 - IDU consumption...............................................................................................31

Tab.11 - Guaranteed consumption for power supply connector ............................................31

Tab.12 - IDU/ODU dimensions .........................................................................................32

Tab.13 - IDU/ODU weight................................................................................................32

Tab.14 - Optical interface characteristics ...........................................................................40

Tab.15 - Aggregate frame ...............................................................................................46

Tab.16 - Switching priority ..............................................................................................47

Tab.17 - IDU Plus possible terminal configurations..............................................................62


Tab.19 - Aggregate frame ...............................................................................................78


Tab.21 - Nominal output power 1 dB tolerance (1+0 version) AL ODU/AS ODU.....................113

Tab.22 - Transmit alarm priority.....................................................................................116

Tab.23 - Characteristics of the cables..............................................................................124

Tab.24 - Tributary connector pin–out ..............................................................................128

Tab.25 - 100BaseT connector pin–out for 10/100BaseT Ethernet connection Pin Description...129

Tab.26 - LCT connector pin–out for connection to supervision system..................................129

Tab.27 - RSR232 connector pin–out for supervision system ...............................................129

Tab.28 - Q3 AUI connector pin–out for Ethernet connection ...............................................130

Tab.29 - CH1 connector pin–out for 9600 bit/s – V.24 interface ..........................................130

Tab.30 - CH1 connector pin–out for 1x9600 or 2x4800 kbit/s – V.28 interface......................130

Tab.31 - CH2 connector pin–out for 64 kbit/s channel – V.11 interface ................................131

Tab.32 - 2 Mbit/s connector pin–out ...............................................................................131

Tab.33 - User in/out connector pin–out for external alarm input and alarm transfer to outside 131

Tab.34 - Tributary connector pin–out ..............................................................................132

Tab.35 - User in/out connector pin–out for external alarm input and alarm transfer to outside 133

Tab.36 - RS232 connector pin–out for connection to/from supervision system ......................133

Tab.37 - Q3 connector pin–out for 10BaseT Ethernet connection.........................................133

256 AL - MN.00107.E - 017

Tab.38 - Q3 AUI connector pin–out for Ethernet connection ...............................................134

Tab.39 - CH1 connector pin–out for 1x9600 or 2x4800 kbit/s – V.28 interface......................134

Tab.40 - Tributary IN/OUT - 75 Ohm ..............................................................................135

Tab.41 - Tributary IN/OUT - 120 Ohm.............................................................................137

Tab.42 - Q3/1 and Q3/2 100BaseT connector pin-out for 10/100BaseT Ethernet connection ...138

Tab.43 - Connector pin-out RS232 PPP interface...............................................................138

Tab.44 - CH1 connector pin-out for 9600 bit/s synchronous V.24 interface...........................139

Tab.45 - CH1 connector pin-out for 9600 bit/s asynchronous V.24 interface .........................139

Tab.46 - CH1 connector pin-out for 1x9600 or 2x4800 kbit/s V.28 interface .........................139

Tab.47 - CH2 connector pin-out for 64 kbit/s channel - V.11 interface .................................140

Tab.48 - 2 Mbit/s wayside connector pin-out....................................................................140

Tab.49 - User IN/OUT connector pin-out..........................................................................140

Tab.50 - Torques for tightening screws............................................................................142






Tab.56 - IDU part number ..............................................................................................240

Tab.57 - IDU Plus part number......................................................................................242

Tab.58 - Example of ODU part number and hybrid part number..........................................246

AL - MN.00107.E - 017 257

35 ASSISTANCE SERVICE

The assistance service provided by Siae Microelettronica will be in compliance, if stipulated, to what spe-cified in the Agreement of Software Maintenance.

To exploit this service, fill in all its parts the Module for the notification of bad SW operation(RQ.00961) and send it to the following address:

SIAE Microelettronica S.p.Avia Michelangelo Buonarroti, 2120093 Cologno MonzeseMilano - Italywww.siaemic.it

Fax + (39) 02 25391585e-mail [email protected]

35.1 RQ.00961 MODULE

Each RQ916 module can contain at most one signalling.

The information required for the signalling of the bad operation.

Warning. The compiling of the parts General Information (Siae only), Trouble notified by, Reserved to SiaeDepartment and Validation manager are at charge of the Siae personnel.

Section – Trouble Identification

- SIAE product name. Identifier or SIAE code of the product whose bad operation has been detected.

- Version. Version of the sw product whose bad operation has been detected

- Documentation Type. Identifier of the document where the problem has been detected.

- Revision. Revision of the document where the problem has been detected.

- Volume N. Number of the volume of the document where the problem has been detected.

- Page N. Number of the page, into the volume, where the problem has been detected.

- Typology. Severity of the detected bad operation:

- Critical, if it prevents the use of a main functionality of the product;

- Important, if it prevents the use of a secondary functionality of the product;

- Disturbing, if occasionally and in difficultly reproducible conditions, it prevents the use of a mainfunctionality of the product;

- Minor, if very seldom it prevents the use of a secondary functionality without important conse-quences;

- Suggestion, if no functionality of the product is damaged but some aspects (e.g.: user interface)can be improved.

- Recurrent. Possibility (Yes) or not (No) to cause the bad operation after the same sequence of inputsgiven to the product.

- Repeatable. Possibility (Yes) or not (No) to reproduce the detected bad operation.

- Annexes. Possibility (Yes) or not (No) of annexed to the NM and their possible number.

258 AL - MN.00107.E - 017

- Title. Title of the bad operation.

- Description. Clear and concise description of the bad operation, comprehensive of the edge condi-tions and, when possible and applicable, of the reference to the test (identifier and version of thetechnical documentation, test identifier).

GENERAL INFORMATION (SIAE ONLY)

Object Software Documentation Hardware Number

Submitted Distribution List: Quality Assurance

TROUBLE NOTIFIED BY

Siae Operator Name _______________________________ Date _______________________________

Customer Report Ref. _______________________________ Date _______________________________

Customer Name Reference _______________________________ Tel _______________________________

Company/Dept. _______________________________ e-mail _______________________________

Contract N Address

TROUBLE IDENTIFICATION

SW/FW failures

SIAE product name ___________________________________________________ Version ______

Documentation

Documentation type ___________________________________________________ Revision ______

Volume N. ___________________________________________________

Page N.

Typology Critical Important Disturbing Minor Suggestion

Recurrent Yes No

Repeatable Yes No

Annexes Yes: N° No

Title:Description (including enviranmental conditions):

RESERVED TO SIAE DEPARTMENT

Trouble Accepted_Open

Rejected Reasons

Notes

Analysis performed by Date Expected Closing Date

CORRECTIVE ACTION DESCRIPTION

FIXED Executed by Date Approved by

VALIDATION MANAGER

MN Closed Open

Verified by Date

Notes

Quality Record Module TROUBLE REPORT Issued byTerzo L.

Approved byGaviraghi S.

Date24/09/02

Page1/1

Siae Microelettronica all rights reserved.

Document Ref.RQ.00961

Rev/Ver003

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