optix rtn 600 introduction

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Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.

OptiX RTN 600 Introduction

Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 2

Foreword

OptiX RTN 600 is a PDH/SDH integrated short-haul

digital microwave transmission system developed by

Huawei.

The maximum microwave transmission capacity is

STM-1.

The system provides the backhaul transmission link in

the mobile communication system or private network,

and also networks with optical transmission

equipments.


References

Product Description and Hardware Description in

the OptiX RTN 600 Product Manual.

Digital Microwave Communication principle


Objectives

Upon completion of this course, you will be able to:

Describe the main characteristics of OptiX RTN 600.

Describe the system structure ,software and hardware

structure of OptiX RTN 600.

List the functions of boards in the IDU, ODU, Hybrid

coupler.

Explain the equipment-level protection mode of OptiX

RTN 600.


Contents

1. Equipment Overview

2. Equipment Structure

3. Equipment Protection


Contents


1.1 Equipment Components

IDU

ODU

Antenna

Intermediate Frequency (IF) Cable

Hybrid coupler

1.2 Equipment Characteristics


Equipment Components

Hybrid coupler

IF cable

IDU

ODU

Antenna

Pole


IDU

Indoor unit (IDU) realizes the

mutual conversion between

the service signal and IF

analog signal. Two types of

IDU are available:

IDU 610 is 1U high and

supports one microwave

direction.


supports maximum four

microwave directions.

IDU 610

IDU 620


IF transit jumper IF cable

IF Cable

The IF cable provides -48V power for ODU and transmits the IF signal and ODU management signal between IDU and ODU.

Three types of IF cable in OptiX RTN 600: IF jumper: connection between IDU and other IF cable.

1/2 inch and RG-8U (1/4 inch) cable: connection between ODU and IF jumper.

RG-8U (1/4 inch) cable is used for the distance less than 180 meter.

1/2 inch cable is used for the distance between 180m and 300m.


ODU

Outdoor unit (ODU) realizes the

mutual conversion between IF

analog signal and RF signal.

ODU is irrelevant to the

microwave transmission

capacity. An ODU of the OptiX

RTN 600 can support the

transmission capacity from 4

E1 to one STM-1.


Hybrid Coupler

When two ODUs share one antenna, the ODUs must be

connected to an RF signal coupler/ splitter (hybrid

coupler). Then, the hybrid coupler is connected to the

antenna.


Antenna

The antenna performs the

directional transmission and

reception of RF signals. The

main parameters are

frequency band, diameter

and antenna gain.


Equipment Characteristics

PDH/SDH integrated microwave transmission system.

The modulation mode and link capacity are set through

software.

Built-in ADM provides flexible service add/drop function.

Providing the clock tracing function.

Supporting mobile FLASH card.

The boards of IDU 610 and IDU 620 are compatible each

other.


Questions

What are the components of OptiX RTN 600? What are the

functions of them? What about the connection relation

among the components?

What are the characteristics of OptiX RTN 600 digital

microwave equipment?


Contents





Contents

Equipment Structure

2.1 System Diagram

2.2 Software Structure

2.3 IDU Structure and Boards

2.4 ODU Interfaces and

Parameters

2.5 Hybrid coupler Parameters


Contents

Equipment Structure

2.1 System Diagram


2.3 IDU Structure and Board

2.4 ODU Interfaces and

Parameters



IDU Structure ( IDU 610) IDU 610 is 1U high and adopts

the nature heat dissipation mode.

Support 1+0 configuration.

EXT slot3

PXC slot1

EXT slot4

SCC slot2

Note: The slot numbering rule is from bottom to up and left to right.

IF boardLine board and tributary board


IDU Structure ( IDU 620)


dissipates heat through wind

cooling.

Support a maximum of 4+0

configuration or two groups of

1+1 configuration.

slot20 PXC slot3

PXC slot1

EXT slot4

SCC slot2

EXT slot5 EXT slot6

EXT slot7 EXT slot8 The slot numbering rule is the same as OptiX RTN 610 .


IDU Board -- IF Board IF1A

ODU powersupply switch

IF cable interface Indicators

The IF board receives and transmits 1x IF signal. It realizes the

conversion between baseband digital signal and IF signal, it also

provides -48V DC power supply and management signal to the ODU.


IF Board -- Board Installation

slot20 PXC slot3

PXC slot1

EXT slot4

SCC slot2

EXT slot7

EXT slot3

PXC slot1

EXT slot4

SCC slot2

IDU 610

IDU 620

EXT slot5

EXT slot8

EXT slot6

①

②

③

④

Paired Slots

Paired Slots

No limitation for board installation under HSB configuration.

Only installing IF boards in paired slots under SD or FD

configuration.

Recommended installation sequence for IF boards


IF Board -- Indicators

The space link is faulty. On

The space link is normal.OnLINK

No services are configured. Off

The service has a minor or remote alarm.On

The service has a critical or major alarm.On

The service is normal.On

SRV

The board is not working, not created, or has no input power.

Off

The board hardware is faulty.On

The board is working normallyOn

STAT

MeaningStatusIndicator


IF Board -- Indicators

Indicator Status Meaning

ODUOn The ODU is normal.

On The ODU is faulty.

BER

On The microwave BER exceeds the threshold.

Off The microwave BER does not exceed the threshold.

RMT

On The remote equipment has a Remote Defect Indication (RDI).

Off The remote equipment has no RDI.

ACTOn The board is in active state.

Off The board is in standby state.


IDU Board -- Tributary Board PH1

Indicator 1-8 channel E1

DB44 interfaces

9-16 channel E1DB44 interfaces

The tributary board processes multi-channel E1 signals

and provides the E1 interface.


Tributary Board -- Types

16-channel E1 interface

75 ohm

PH1A8-channel

E1 interface75 ohm

PO1A PO1BPH1B

16-channel E1 interface

120 omh

8-channel E1 board

120 ohm

Four groups of jumpers

determine the impedance.

Front panel

The board interface impedance is selected through the jumper:

If there is a jumper, the impedance is 75 ohm.

If there is no jumper, the impedance is 120 ohm.


Tributary Board -- Board installation

slot20 PXC slot3

PXC slot1 SCC slot2

EXT slot7

PXC slot1

EXT slot4

SCC slot2

IDU 610

IDU 620

EXT slot5

EXT slot8

EXT slot6

①

Recommended installation sequence for TU boards

②

③

④

EXT slot4

EXT slot3

⑤


IDU Board -- Line Board SD1/SDE

SMBelectrica

l interface

LC optical

interface

The line board processes 1-2 channel STM-1 signal and

provides STM-1 optical or electrical interface.


Line Board -- Types

SD1

Dual-port STM-1

optical interface

Ie-1interface

S-1.1interface

L-1.1interface

L-1.2interface

SL1

Single- port STM-1

optical interface

Ie-1interface

S-1.1interface

L-1.1interface

L-1.2interface

SDE

dual-port STM-1

electrical interface

SLE

Single-port STM-1

electrical interface


Line Board -- Board installation

slot20 PXC slot3

PXC slot1 SCC slot2

PXC slot1

EXT slot4

SCC slot2

IDU 610

IDU 620

EXT slot5

EXT slot8

EXT slot6

①

②

③

④

EXT slot4

EXT slot3

⑤ EXT slot7

Recommended installation sequence for LU boards


Line Board -- Interface Parameters

Item Performance

Nominal bit rate (kbit/s) 155520

Application code Ie-1 S-1.1 L-1.1 L-1.2

Optical fiber typeMulti-mode fiber

G.652 G.652 G.652

Transmission distance (km)

0.5 15 40 80/100

Working wavelength (nm)

1260-1360

1261-1360

1263-1360

1480-1580

Average transmit optical power (dBm)

－ 19~ －14 － 15~ － 8 － 5~0 － 5~0

Minimum sensitivity (dBm) -23 -28 -34 -34

Minimum overload (dBm) -14 -8 -10 -10

Minimum extinction ratio (dB) 8.2 8.2 10 10


IDU Board -- Ethernet Board EFT4 EFT4 is a Ethernet transparent transmission board. It receives,

transmits and processes four-channel Ethernet signals.

slot20 PXC slot3

PXC slot1 SCC slot2

EXT slot7

PXC slot1

EXT slot4

SCC slot2

IDU 610

EXT slot5

EXT slot8

EXT slot6

①

②

③

④

EXT slot4

EXT slot3

IDU 620

Recommended installation sequence for EFT4 boards

⑤


Power Cross-Connection Clock Board -- PXC

IndicatorIDUPowerswitch

External clock/Waysideinterface

Power inputinterface

The PXC board realizes the cross-connection (16×16 VC4) and clock functions , it also provides the DC power for other boards.


PXC -- Board Installation

IDU 610

slot20 PXC slot3

PXC slot1 SCC slot2

EXT slot7

IDU 620

EXT slot5

EXT slot8

EXT slot6

①

② EXT slot4

PXC slot1

EXT slot4

SCC slot2

EXT slot3


IDU Board -- SCC SCC provides system control and communication functions, auxiliary

interfaces management and standby internal power module.

Indicators

Indicator test button

Reset button

NM serial port

NM interface

NM cascaded interface

Order wire

Asynchronous data and Boolean interface

Flash memory


SCC Board -- Board Installation

slot20 PXC slot3

PXC slot1 SCC slot2

EXT slot7

IDU 610

IDU 620

EXT slot5EXT slot8EXT slot6

EXT slot4

PXC slot1

EXT slot4

SCC slot2EXT slot3


SCC Board -- NM Cable Connection The SCC board sets the NE ID through the software. The initial NE

ID is set to 49136 by default.

The IP address of NE is also set through the software. The IP

address is set to 129.9.0.ID by default.

NMS

Connected by Ethernet cable


SCC Board -- Wrong Connections

Multiple NEs are cascaded as a

loop.

Self-loop of single NE

The connection will cause NE reset frequently.


PDH Microwave Overhead When the IF board is set as PDH mode, such as 4E1/8E1/16E1,

the DCC, order wire, and asynchronous transparent data

interface can only use one byte.

When the IF board is changed from STM-1 mode to PDH mode, if

the transparent transmission setting of DCC byte occupies the

D1 byte, the manual modification is required. Set the working

mode to DI mode first. Otherwise, when the IF board is changed

to the PDH mode, the DCC is interrupted.


SCC Board -- Indicators

Indicator

Status Meaning

STAT

On The board is working normally.

On The board hardware is faulty.

Off The board is not working, or not created, or has no input power.

PROG

On 100 ms and off 100 ms

During the board power-on/reset, loading the software.


The board software is introduced through the BIOS during the power-on/reset.

On Initialize the upper layer software.


During the board power-on/reset, BOOTROM self-test fails.


SCC Board -- Indicators

Indicator

Status Meaning

PROG

On During the board power-on/reset, the memory self-test fails or the upper layer software loading fails, or during the board running, the logical file and software are lost.

Off The software is normal.

ALM

On The system is normal.

On The system has a critical or major alarm.

On The system has a minor alarm.

Off The system has no input power.

MANT

On The system is in maintenance state ( that is, loop-back, laser power-off, and ODU transceiver mute)

Off The system is in working state.


IDU Board -- Fan Board (FAN)

Indicator slot

20 PXC slot3PXC slot1 SCC slot2

EXT slot5EXT slot8EXT slot6EXT slot4

EXT slot7

Fan direction

Indicator Status Meaning

FAN

On The fan is working normally.

On The board is faulty.

Off The board has no input power.


Contents

Equipment Structure

2.1 System Diagram



2.4 ODU Interfaces and Parameters



ODU -- Interface

< 5 kg Power consumption: < 40WWeight:

< 260 mm X 260 mm X 92 mm (width X height X depth)Dimension:

Grounding double-screw bolt

RSSI test interface IF interface

Antenna port


ODU -- Main Performance

ItemPerformance

7G 15G 18G 23G

Frequency range (GHz)

7.114-7.743

14.501-

15.257

17.685-

19.710

22.000-

23.608

TR spacing (MHz) 161 420 1010 1008

Channel spacing (MHz)

3.5, 7, 14, 28

3.5, 7, 14,

28

3.5, 7,

13.75,

27.5

3.5, 7, 14,

28

The ODU frequency bands covers from 7G to 38G. Some commonly used frequency band indexes are listed in the table.


ODU -- Main Performance (cont.)

ItemPerformance

7G 15G 18G 23G

maximum Tx (dBm)QPSK 25.5 24.5 24 22.5

16QAM 21 20 20 19

128QAM 15 14 14 13

minimum Tx (dBm) -4

Transceiver frequency stability (ppm) ±5

[Note]: If the transmitting power exceeds the maximum level ,the Bite Error will occur in the service.


Contents

Equipment Structure

2.1 System Diagram



2.4 ODU Interfaces and Parameters



Hybrid coupler

Secondary tributary port

Antenna port

Primary tributary port


Summary Equipment Structure of OptiX RTN 600

Software Structure: the host and board software are integrated in the SCC and the ODU is a logical board.

IDU: includes IDU 610 and IDU 620. IF board: IF1A and IF1B

Line board: SL1, SD1, SLE, and SDE

Tributary board: PH1 and PO1

Data board: EFT4

Power cross-connection clock board: PXC

System control and communication board: SCC

Fan board: FAN

ODU: interface, dimension, weight, power consumption, power indicator, and frequency indicator

Hybrid coupler: interface and main indicators


Contents





Description of 1+1 HSB

Switch point The services are switched in the cross-connection board.

Switch condition Automatic switch: IF board hardware fault, ODU hardware fault,

remote failure indication, and microwave frame loss.,

Manual switch: locking, forced, manual, and clearing

Characteristics The active/standby unit has no restrictions on the paired slots.

The switch actions are implemented by the software and

hardware.

The service will be interrupted in the case of switch.


1+1 Space Diversity (1+1 SD)

Cross-connection board Service

board

ActiveIF BoardActive

ODU

Antenna 1

StandbyIF Board

StandbyODU

Antenna 2

Mute


1+1 Frequency Diversity (1+1 FD)

Cross-connectionboard Service

board

ActiveIF Board

ActiveODU

HybridAntenna

StandbyIF Board

StandbyODUtf2

rf2

tf1

rf1


Space Frequency Diversity (1+1 SD+FD)

Cross-connectionboard Service

board

ActiveIF Board

ActiveODU

Antenna 1

StandbyIF board

StandbyODU

Antenna 2

tf2

rf2

tf1rf1


Installation Control the quality of installation

1. The quality of IF connector

2. Water proof of the IF interface on ODU

3. The installation of ODU

4. Pay more attention to the polarization of the

ODU/antenna and coupler.

5. The main OUD must be installed on the main interface of

the ODU, and the standby OUD must be installed on the

standby interface of the ODU.

6. After the alignment of antenna, you must be sure the

antenna is locked.

Thank You

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optix rtn 600 introduction

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