am200 user guide - atl telecom

AM200 USER GUIDE

ATL User GuideAM200 Modem

2

ATL Part No 1/360/001/610

Issue 04 JUne 2004

Disclaimer

The information contained in this document is confidential to ATL Telecom Ltd. and may not be disclosed orreproduced in whole or in part without their written consent.

© ATL Telecom Ltd 2004.

Note: The information contained in this document is supplied without liability for errors or omissions.

ATL Telecom Limited reserves the right to make changes to this document at any time without notice.


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COMPLIANCE NOTES & SAFETY INSTRUCTIONS

Caution: - Hazardous voltages inside the equipment

Safety Instructions:This apparatus must be installed and maintained by SERVICE PERSONNEL.

There are NO user serviceable parts inside the modems.

Caution: - Electrostatic sensitive devices inside the equipment

Electrostatic discharge (ESD) Warning:Antistatic precautions should be observed at all times.

Power Rating Information - AC Version:Voltage Rating 85Vrms to 250VrmsMaximum Current 100mAFrequency Range 50 - 60Hz

Power Rating Information - DC Version:Voltage Rating -18V to -72VMaximum Current 222mA

Disconnect Device Statement:For the AM200 DC Version the DC input socket serves as the disconnect device.

TTE - Network Safety Statement:The AM200 is a Class 1 product and must be connected to a reliable earth connection. If the MAINS EARTHcannot be guaranteed to be PROTECTIVE EARTH, then a PROTECTIVE EARTH conductor must be connectedto the M3 stud on the REAR PANEL of the unit.

Safety Classification of traffic PortsThe DSL line connection has a safety status of TNV-3

10/100BaseT - 8 WAY RJ45 connection has a safety status of UNEARTHED SELV.

X21/V35 - 25 WAY FEMALE D-Type connection has a safety status of EARTHED SELV.


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G703 connected to an Unexposed Environment:Tx 75ohm BNC connection has a safety status of EARTHED SELV.Rx 75ohm BNC connection has a safety status of UNEARTHED SELV.120ohm 8WAY RJ45 connection has a safety status of UNEARTHED SELVFor the DC version, the M3 stud on the rear panel MUST be connected to ground.

G703 connected to an Exposed Environment:Tx 75ohm BNC connection has a safety status of EARTHED TNV-1.Rx 75ohm BNC connection has a safety status of UNEARTHED TNV-1.120ohm 8 WAY RJ45 connection has a safety status of UNEARTHED TNV-1.

For the DC version, the M3 stud on the rear panel MUST be connected to ground.

Safety Status Classification of non-traffic PORTSMains Input - IEC320 85Vrms - 250Vrms 50/60Hz connection has a safety status of PRIMARY CIRCUIT.

DC Input - TNV-2

Management Port Interface - 9 WAY FEMALE D-Type connection has a safety status of EARTHED SELV.

DefinitionsExposed EnvironmentA TELECOMMUNICATIONS NETWORK is considered to be an exposed environment if one or more conditionsfor an unexposed environment are not fulfilled.

Unexposed EnvironmentA TELECOMMUNICATIONS NETWORK is considered to be an unexposed environment if the followingconditions apply to all parts of the network

a) The possible effect of indirect lightening has been reduced by measures described in IEC 61312-1.

b) The possibility of having different earth potentials has been reduced by connecting all equipmentwithin the network to the same equipotential bonding system.

c) The possibility of power cross/contact has been reduced.

d) The possibility of induced transients and voltages has been reduced.

Manufacturers Declaration*ATL Telecom Limited declares that this product is in conformitywith the essential requirements of the 'R&TTE directive 1999/5/EC'.

*A copy of the Declaration of Conformity is available upon request from ATL Telecom Ltd.


5

1 SCOPE 112 INTRODUCTION 123 EXAMPLE APPLICATIONS 143.1 AM200 BACK TO BACK SET-UP (INTEGRATED VOICE & DATA TRANSMISSION) 14

3.2 AM200 TO AM200 CONNECTION VIA AN AM7000 MULTIPLEXER (CROSS CONNECTION) 14

3.3 AM200 MODEMS CONNECTED TO A D.D.N. VIA AN AM7000 MULTIPLEXER AT 1.024Mbps 15

4 CONSTRUCTION 164.1 AM200ALE FRONT PANEL 16

4.2 AM200AE FRONT PANEL 16

4.3 AM200 REAR PANEL 17

4.3.1 AC VARIANT 3-PIN IEC MAINS INLET SOCKET AND SWITCH 17

4.3.2 DC VARIANT 17

4.3.3 REAR CONNECTORS COMMON TO AC & DC VARIANTS 18

5 INSTALLATION 195.1 CONNECTION OF PROTECTIVE EARTH 19

5.2 LED POWER ON SEQUENCE 19

5.3 LCD POWER ON SEQUENCE 19

5.4 DEFAULT SETTINGS 19

6 QUICK START GUIDE 216.1 SET ONE END TO CO 21

6.2 LINE RATE 21

6.3 ETHERNET 22

6.3.1 CONFIGURATION AS A BRIDGE 22

6.3.2 CHANGING AN AM200 FROM ROUTER TO BRIDGE 23

6.3.3 C0NFIGURATION AS A ROUTER 24

6.4 G703 26

6.5 Nx64 27

7 SELECTING THE CIRCUIT CONFIGURATION 287.1 STANDALONE SECTION 28

7.1.1 INTERNAL TIMING 29

7.1.1.1 G.703 to G.703 Internal Timing Master 29

7.1.1.2 G.703 to X.21/V.35 Internal Timing 29

7.1.1.3 X.21/V.35 DCE to X.21/V.35 DCE 30

7.1.2 G.703 TO G.703 TRANSPARENT TIMING 30

7.2 TANDEM SECTION - EXTERNAL TIMING 31

7.2.1 G.703 TO G.703 EXTERNAL TIMING 31

7.2.2 X.21/V.35 DTE-TO X.21/V.35 DCE 32

7.2.3 G.703-TO X.21/V.35 DCE 32

7.3 CROSSING AN SDH NETWORK 33


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7.4 CROSSING A PDH NETWORK 33

8 SETTING UP USING CLI 348.1 CONNECTION VIA TERMINAL PORT 34

8.2 CONNECTION VIA ETHERNET PORT - TELNET 35

8.3 CLI COMMAND STRUCTURE 36

8.3.1 <GROUP> 36

8.3.2 <SUB-GROUP> 36

8.3.3 <COMMAND> 36

8.3.4 <INSTANCE> 36

8.3.5 <ATTRIBUTE-NAME> 36

8.3.6 <ATTRIBUTE-VALUE> 37

8.4 CLI HELP COMMAND 38

8.5 CLI AUTO COMPLETE 40

8.6 CHANGING THE IP ADDRESS 41

8.7 SETTING CO/CPE 41

8.7.1 TO SET THE AM200 AS CPE 41

8.7.2 TO SET AS CO 41

8.8 SETTING THE DSL LINE RATE 41

8.9 MANAGEMENT MODE 43

8.10 THE USER INTERFACE 44

8.10.1 ETHERNET PORT 44

8.10.1.1 Setting the Ethernet User Port Data Rate 44

8.10.1.2 Enabling Alarm Reporting 44

8.10.2 G703 USER PORT 44

8.10.2.1 Enabling the G703 Alarm Reporting 44

8.10.2.2 Setting the G703 Time slots 44

8.10.3 NX64 USER PORT 45

8.10.3.1 Enabling the Nx64 Alarm Reporing 45

8.10.3.2 Setting the Nx64 User Port Type 45

8.10.3.3 Setting The Nx64k User Port Data Rate 46

8.11 BRIDGE 48

8.12 ROUTER 50

8.13 RIP 51

8.14 RESTORING FACTORY DEFAULT 52

8.15 SAVING CLI CHANGES 52

8.16 RESTORING TO SAVED SETTINGS 52

8.17 EXAMPLE CONFIGURATION 53

8.17.1 G703 EXAMPLE CONFIGURATION 53

8.17.2 V35 EXAMPLE CONFIGURATION 54

8.17.3 V35 & G703 EXAMPLE CONFIGURATION 55


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9 SETTING UP USING WEB BROWSER 579.1 INTERNET/EXPLORER SET-UP 57

9.2 OPENING THE WEB BROWSER 58

9.3 WEB BROWSER MENU'S 58

9.3.1 HELP 59

9.3.2 STATUS 60

9.3.3 SYSTEM 61

9.3.3.1 Error Log 61

9.3.3.2 Hardware 61

9.3.3.3 Inventory 62

9.3.3.4 Remote Access 63

9.3.3.5 Upgrade 63

9.3.3.6 Restart 64

9.3.3.7 System Time 65

9.3.4 ADVANCED STATUS 66

9.3.4.1 DHCP Server 66

9.3.4.2 DNS Client 66

9.3.4.3 DNS Relay 67

9.3.4.4 Security 67

9.3.4.5 User Ports 68

9.3.4.5.2 HDLC 69

9.3.4.5.3 Nx64 69

9.3.5 PERFORMANCE 70

9.3.5.1 DSL 70

9.3.5.2 DS1 71

9.3.6 CONFIGURATION 71

9.3.6.1 Save 72

9.3.6.2 Authentication 72

9.3.6.3 DHCP Server 73

9.3.6.4 DNS Client 75

9.3.6.5 DNS Relay 76

9.3.6.6 DEVICE 77

9.3.6.7 IP Routes 79

9.3.6.8 Login 80

9.3.6.9 Security 80

9.3.6.10 User Ports 82

9.3.6.10.1 DS0 82

9.3.6.10.2 DS1 User Port 83

9.3.6.10.3 HDLC Port 85

9.3.6.10.4 N*64 User Port 87


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9.3.7 TEST 90

9.3.7.1 DS0 90

9.3.7.2 DS1 90

9.3.7.3 Nx64 91

9.3.7.4 BERT TESTER 92

10 SETTING UP USING THE LCD 9310.1 MENU STRUCTURE 93

10.1.1 SHOW SUB-MENUS 93

10.1.2 SET SUB-MENUS 93

10.1.3 MENU STRUCTURE LAYOUT 94

10.2 AM200 MENU 95

10.2.1 SHOW OPTION 95

10.2.2 SET OPTION 96

10.2.2.1 DS1MODE 97

10.2.2.2 MANAGEMENT MODE 97

10.2.2.3 EXPECTED MODEL 97

10.2.2.4 LINE RATE 98

10.2.2.5 ENABLE LINE 98

10.2.2.6 LCD TIME 98

10.3 INVENTORY MENU 99

10.3.1 SHOW OPTION 99

10.4 DS0 MENU 100

10.4.1 DS0 SHOW OPTION 100

10.4.2 DS0 SET OPTION 100

10.4.2.1 ENABLE TIMESLOTS 101

10.4.2.2 SET LOOPBACKS 101

10.5 DS1 MENU 102

10.5.1 DS1 SHOW OPTION 102

10.5.2 DS1 SET OPTION 103

10.5.2.1 ADMIN STAUS 104

10.5.2.2 LINE TYPE 104

10.5.2.3 TxC CLOCK SOURCE 104

10.5.2.4 CHANNELIZATION 105

10.5.2.5 TIMESLOTS 105

10.5.2.6 LOOPBACK 105

10.5.2.7 LINK TRAP ENABLE 106

10.5.2.8 STATUS TRAP ENABLE 106

10.6 HDLC MENU 106

10.6.1 HDLC SHOW OPTION 106

10.6.2 HDLC SET OPTION 107


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10.6.2.2 NTimes64K 108

10.6.2.3 Link Trap Enable 108

10.7 Nx64 MENU 108

10.7.1 NX64 SHOW OPTION 109

10.7.2 NX64 SET OPTION 110


10.7.2.2 NTimes64K 111

10.7.2.3 TYPE 111

10.7.2.4 MODE 111

10.7.2.5 ENABLE DTE CLOCK 112

10.7.2.6 106 CLAMP 112

10.7.2.7 LOCAL LOOP 112

10.7.2.8 LOOP BACK 112

10.7.2.9 LINE TRAP 113

10.7.2.10 SIGNAL LOSS 113

10.7.2.11 CLOCK OUT OF RANGE 113

10.8 SYSTEM MENU 114

10.8.1 RESTART 114

10.8.2 CONFIGURE 114

10.8.2.1 SAVE 114

10.8.2,2 RESTORE 115

11 COMMISSIONING 11611.1 PERFORMANCE VIA WEB BROWSER 116

11.1.1 DSL 116

11.1.2 DS1 117

12 OPERATION & MAINTENANCE 11812.1 INTERNAL LINKS & FUSES 118

12.1.1 AC VARIANTS 118

12.1.2 DC VARIANTS 118

12.1.3 G703 USER PORT 118

13 SPECIFICATION 11913.1 AM200 DIMENSIONS 119

13.2 TRANSMISSION PERFORMANCE 119

13.2.1 END TO END DELAY 119

13.2.2 JITTER 119

13.2.3 TRANSMISSION RANGE 119

13.3 AC POWER INLET 120

13.4 DC POWER INLET 120

13.5 DC POWER CABLE 121


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13.6 COPPER TRANSMISSION LINE 121

13.7 TERMINAL CONNECTION 122

13.8 INTERFACE CONNECTION 123

13.8.1 ETHERNET PORT 123

13.8.2 G703 124

13.8.2.1 G703 75 Ohm 124

13.8.2.2 G703 120 Ohm 124

13.8.3 RS530 DCE 125

13.8.4 RS530 DTE 126

13.8.5 V35 DCE 127

13.8.6 V35 DTE 128

13.8.7 X21 DCE 129

13.8.8 X21 DTE 130

13.9 MOUNTING BRACKET 131

13.10 ENVIRONMENTAL 132

13.10.1 TRANSPORTATION 132

13.10.2 STORAGE 132

13.10.3 OPERATIONAL 132

14 SYSTEM OVERVIEW 13314.1 COPPER TRANSMISSION 133

14.2 DSL TRANSMISSION FRAME 133

14.3 CONTROL CIRCUIT 134

15 COMPLIANCE NOTES 13515.1 TELECOMMUNICATION STANDARDS 135

16 ORDERING INFORMATION 13616.1 USER INTERFACES 136

16.2 AM200 DESKTOP UNITS, NON LCD 136

16.3 AM200 DESKTOP UNITS, WITH LCD 136

16.4 SPECIAL AM200 VARIANTS 136

16.5 ACCESSORIES 136

17 F.A.Q.s 13718 Appendix 1 Glossary 138


11

11 SCOPE

This User Guide applies to the AM200 DSL modem designed and manufactured by ATL Telecom Limited inthe U.K. It provides guidance for installation, commissioning and operation of the modem as well as referenceinformation covering maintenance, specification and compliance.


12

2 INTRODUCTION

The AM200 is a DSL modem that complies with the G.SHDSL standard for high-speed digital line technology.It is capable of transmitting up to 7½ Km at 128kbps over 0.5mm2 cable (5.9Km at 2Mbps).

The AM200 supports transmission rates from 128kbps to 2.3Mbps over a single pair copper line.

The AM200 provides a combination of Ethernet, X21/V35 and G703 interface options. All of the interfacescan be operated simultaneously. The X21 and V35 Interface options require the use of a special convertercable that attaches to the 25 way D-type connector on the back of the AM200.

The Ethernet interface supports Routing and Bridging over PPP and Frame Relay. The Nx64 interface supportsdata rates between 64kbps and 2.3Mbps. The Nx64 supports V35, X21 and RS530 user selectable interfaces.

Management control can be provided remotely via SNMP, Telnet, and Web Browser or locally via the RS232connector. Alternatively the AM200 (LCD version) can be set-up locally using the menu/navigation buttons onthe front of the unit.

Figure 1 AM200 with LCD Display

The AM200 can be connected back to back to give a cost effective high-speed data transfer link between twosites.


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2

Figure 2 AM200 Back-to-Back connection

The AM200 is part of ATL's AM7000 family of products, which allows the unit to be linked to the AM7000shelf. One AM7000 shelf can manage and serve up to 128 AM200 units.

Figure 3 AM200 to AM7000 Connection

atl AM200

CustomerTerminal

SNMP Manager

10/100BaseT

D.D.N.(Digital Data Network)

Status

Test

Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

PMX

Mngmt

Ether

Rmvd

Status

Test

Chan

atlAM7000

PMX

Mngmt

Ether

Rmvd

Status

Test

Alarm

Fan Alarm

PWR1

Fuse A

Fuse B

Power

Fan Power

12.5A/250V

Fu

se A

Fu

se B

Status

Test

Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

E1S16

Status

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Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

E1S16

AM200 AM200

CO CPE

Term

Test

User

Line

atlAM200

Term

Test

User

Line

atlAM200

1 Copper pair

G703/X.21/V.35/RS530/100BaseT


14

3 EXAMPLE APPLICATIONS

The following examples illustrate some of the applications.

3.1 AM200 BACK TO BACK SET-UP (INTEGRATED VOICE & DATA TRANSMISSION)

Due to the flexibility of the AM200 DSL modem the unit can be connected back-to-back to give high-speedintegrated voice and data transmission between two sites.

Figure 4 Example showing PBX and LAN connection between two sites

3.2 AM200 TO AM200 CONNECTION VIA AN AM7000 MULTIPLEXER (CROSSCONNECTION)

When the AM7000 Rack is fitted with a PMX Card plus 16 x DSL-8 Cards the DSL Access Multiplexer can crossconnect 128 x AM200 DSL Modems (Figure 5) operating from 128kbps up to 2.3Mbps.

Figure 5 AM200 cross-connection via an AM7000 Multiplexer

atl AM200

atl AM200

atl AM200

2.048Mbps

Up to 128 AM200 DSLModems can be cross-

connected using 16 DSL-8Line Cards

AM7000 Access Multiplexer fitted with16 DSL-8 Cards

Status

Test

Chan

atlAM7000

DSL8

Status

Test

Chan

atlAM7000

PMX

Mngmt

Ether

Rmvd

Status

Test

Chan

atlAM7000

PMX

Mngmt

Ether

Rmvd

Status

Test

Alarm

Fan Alarm

PWR1

Fuse A

Fuse B

Power

Fan Power

12.5A/250V

Fu

se

AF

use

B

Status

Test

Chan

atlAM7000

DSL8

Status

Test

Chan

atlAM7000

DSL8

Status

Test

Chan

atlAM7000

DSL8

Status

Test

Chan

atlAM7000

DSL8

Status

Test

Chan

atlAM7000

DSL8

Status

Test

Chan

atlAM7000

DSL8

Status

Test

Chan

atlAM7000

DSL8

Status

Test

Chan

atlAM7000

DSL8

Status

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Chan

atlAM7000

DSL8

Status

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Chan

atlAM7000

DSL8

Status

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Chan

atlAM7000

DSL8

Status

Test

Chan

atlAM7000

DSL8

Status

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Chan

atlAM7000

DSL8

Status

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Chan

atlAM7000

DSL8

Status

Test

Chan

atlAM7000

DSL8

PBX

LAN

PBX

LAN

AM200 AM200

CO (master) CPE (slave)

Term

Te

st

Us

er

Lin

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atl AM200

Term

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Us

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atl AM200


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3

3.3 AM200 MODEMS CONNECTED TO A D.D.N. VIA AN AM7000 MULTIPLEXER AT1.024MBPS

With the AM7000 Rack fitted with a PMX Card plus 12 x DSL-8 Cards and 3 x E1S-16 Cards the DSL AccessMultiplexer can support 96 x AM200 DSL Modems operating at 1.024Mbps with 48 x E1 Interfaces (Figure6) giving connection to a Digital Data Network.

Figure 6 Example Connection to a AM7000 Multiplexer @ 1.024Mbps

atl AM200

atl AM200

atl AM200

1.024Mbps

Up to 96 AM200 DSLModems can be connected

AM7000 Access Multiplexer fitted with12 DSL-8 & 3 E1S-16 Cards

48 x E1connections

D.D.N.(Digital Data Network)

Status

Test

Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

PMX

Mngmt

Ether

Rmvd

Status

Test

Chan

atlAM7000

PMX

Mngmt

Ether

Rmvd

Status

Test

Alarm

Fan Alarm

PWR1

Fuse A

Fuse B

Power

Fan Power

12.5A/250V

Fu

se

AF

use

B

Status

Test

Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

E1S16

Status

Test

Chan

atlAM7000

DSL8

Status

Test

Chan

atlAM7000

DSL8

Status

Test

Chan

atlAM7000

DSL8

Status

Test

Chan

atlAM7000

DSL8

Status

Test

Chan

atlAM7000

DSL8

Status

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Chan

atlAM7000

DSL8

Status

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Chan

atlAM7000

DSL8

Status

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Chan

atlAM7000

DSL8

Status

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atlAM7000

DSL8

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atlAM7000

DSL8

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DSL8

Status

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atlAM7000

DS8


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4 CONSTRUCTION

The DSL modem is a desktop/wall mounting unit housed in a non-flammable plastic case (UL94 rating V0).The unit can be mounted on a wall (optional wall bracket is required) or placed on a desk. The design allowsfor a number of units to be stacked (if required). The AM200 can be purchased either with a LCD display(AM200ALE) or without a LCD display (AM200AE).

4.1 AM200ALE FRONT PANEL

The front panel of the AM200ALE version contains a RS232 9 way D-Type Terminal connection and threestatus LED's, plus three buttons and a menu driven 2 line 32-character LCD display.

LEDS

Test

User Port

Lines

Buttons

Up Arrow

Down Arrow

Select

4.2 AM200AE FRONT PANEL

The front panel of the AM200AE version contains a RS232 9 way D-Type Terminal connection and threestatus LEDs.

LEDs

Test

User Port

Lines

Term

T est

Use

r

Lin

e

atl AM200

Term

Sel

ect

T est

Use

r

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atl AM200


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4

4.3 AM200 REAR PANEL

4.3.1 AC Variant 3-pin IEC mains inlet socket and switch

Figure 7 AM200 AC with 10/100BaseT, RS530 & G703 120 Ohm data ports

Figure 8 AM200 AC with 10/100BaseT, RS530 & G703 75 Ohm data ports

4.3.2 DC Variant

Figure 9 AM200 DC with 10/100BaseT, RS530 & G703 120 Ohm data ports

Figure 10 AM200 DC with 10/100BaseT, RS530 & G703 75 Ohm data ports

LINE RS530/V35/X21 TX RXG703 100 BaseT

-18V to -72V

222mA

LINE RS530/V35/X21 100 BaseT

-18V to -72V

222mA

G703

85-250V AC 100mA50-60Hz LINE RS530/V35/X21 TX RXG703 100 BaseT

85-250V AC 100mA50-60Hz LINE RS530/V35/X21 G703 100 BaseT


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4.3.3 Rear Connectors Common to AC & DC Variants

RJ45 Line Interface

User Data Ports (depending on variant)

With LCD

AM200ALE 10/100BaseT RJ45

AM200ALEX 10/100BaseT + X21/V35 RJ45 + 25 way D type

AM200ALEG7 10/100BaseT + G703 75 ohms RJ45 + 2*BNC

AM200ALEG1 10/100BaseT + G703 120 ohms RJ45 + RJ45

Without LCD

AM200AE 10/100BaseT RJ45

AM200AEX 10/100BaseT + X21/V35 RJ45 + 25 way D type

AM200AEG7 10/100BaseT + G703 75 ohms RJ45 + 2*BNC

AM200AEG1 10/100BaseT + G703 120 ohms RJ45 + RJ45

CABLES

The X21 Data Port requires a 25way D Type to 15way D Type Converter cable.

The V35 Data Port requires a 25way D type to MRAC Converter cable.

Also included is a 2.0m mains lead fitted with a country variant mains plug (AC models only) and a 3 metrescreened Category 5 line cord terminated in 8-way RJ45 plugs at both ends


19

5

5 INSTALLATION

This chapter describes the basic steps that are required to set up a system using the AM200 DSL modem.

It is recommended that if two desktop units are to be connected they should be tested back to back to checkfor operation before deployment.

5.1 CONNECTION OF PROTECTIVE EARTH

If a G703 port needs to be connected to a circuit that is defined as TNV, then a protective earth must beconnected to the earth bond stud on the rear panel. See the Safety Statements at the front of this UserGuide.

5.2 LED POWER ON SEQUENCE

The TEST LED is red during the boot sequence and self-test.

Followed by all LEDs flashing orange for 45 seconds.

Followed by normal operation.

5.3 LCD POWER ON SEQUENCE

On power-on, and after a button inactivity timeout, the LCD display will revert to a status display. The upperLCD display line will show the product name, management mode and DSL mode, while the lower LCD displayline will show the DSL and userport states (Up, Errored, Down or Disabled) in rotation.

AM200:Master:CoLine:Up

This display, and some of the 'Show' sub-menu items, is refreshed automatically every two seconds.

Pressing any one of the three buttons will wake-up the LCD.

5.4 DEFAULT SETTINGS


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Mode NTU/CPE/RT

Line Rate Rate Adaptive

Management Mode Slave

Enable Line True

Expected Model (slave) AM200EXG

IP Interface

IP Address 10.254.254.253

Mask 255.255.0.0

Ethernet Port

Ethernet Port Enabled

User Rate Line Rate

Electrical IEEE 802.3 10 Base T/IEEE 802.3u (Fast Ethernet)

Nx64 Data Port

Nx64 Port Disabled (if fitted)

User Rate 0

Electrical V35

Mode DCE

Control Interchange circuits Clamped ON

G.703 Port

G.703 Port Disabled (if fitted)

User Rate 2048 kbps

Time Slots All Time slots Disabled

Frame E1 Framed with CRC enabled


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6

6 QUICK START GUIDE

This section of the manual is intended to allow the user to set up the AM200 in a simple point-to-pointconfiguration quickly, and simply.

Figure 11 Point-to-Point Configurations

Each of these configurations assumes that the AM200s start in the factory default configuration. The AM200can be returned to its factory default state by using the following CLI command:

--> system config restore factory ↵↵

6.1 SET ONE END TO CO

All configurations require one AM200 to be configured as a CO, and the other as a CPE. AM200 defaults toa CPE, so the first thing we must do is set one of the units to be a CO. This is done using the following CLIcommand:

--> am200 set interface local dslmode co ↵↵

6.2 LINE RATE

By default AM200 will rate adapt to the highest line rate it can achieve on the line it is connected to. The ratebeing used can be found by using the following command:

--> am200 show interface local currentlinerate ↵↵

Alternatively the line rate can be specified. The line rate should be set at the CO end only. See section 8.8 ofthis manual for instructions on how to set the line rate.

AM200 AM200

CO CPE

Term

Test

User

Line

atlAM200

Term

Test

User

Line

atlAM200

1 Copper pair

G703/X.21/V.35/RS530/100BaseT


22

6.3 ETHERNET

6.3.1 CONFIGURATION AS A BRIDGE

The User's PC and the Network are connected directly together and so must be on the same IP subnet.

Figure 12 AM200 to PC Connection

Figure 12 shows a PC connected to a local LAN. If the user wishes to connect a remote PC to the LAN thena pair of AM200s may be used to bridge between them as shown in Figure 13.

Figure 13 AM200 Bridge

Bridging is the default mode of operation of the AM200.

Connect the AM200 over the transmission line to form the wide area link. Connect the LAN to the 'CO'AM200 with a straight cable. Connect the PC to the 'CPE' AM200 with a crossover cable.

AM200s are supplied with a default address and subnet mask as follows.

IP address 10.254.254.253

Subnet Mask 255.0.0.0

The IP address of one of the AM200s will have to be changed so that the two don't clash. If the addressclashes with something else on the network then both will have to be changed.

User's PC

AM200

CPE

Term

Te

stU

ser

Lin

e

atl AM200Network

10/100BaseTStraight cable

10/100BaseTCrossover cable

Wide AreaLink

leased line

AM200

CO

Term

Te

stU

ser

Lin

e

atl AM200

LAN

User'sPC

10/100BaseTStraight cable


23

6

To change the IP address use the following CLI command:

--> ip set interface iplan ipaddress <ipaddress> <netmask> ↵↵

Where <ipaddress> is the desired IP address, and <netmask> is the desired subnet mask.

6.3.2 CHANGING AN AM200 FROM ROUTER TO BRIDGE

Probably the quickest way to change an AM200 to be a Bridge is to restore the factory default settings asdescribed at the start of the section. Otherwise the following commands will configure the AM200 to be abridge.

First remove the router configuration. Type in:-

--> ip clear interfaces ↵↵--> ip clear routes ↵↵--> ip clear riproutes ↵↵

Then add interfaces for each side of the bridge, e.g. "lan" for the Ethernet user port and "wan" for the DSLconnection: Type in:-

--> bridge add interface lan ↵↵--> bridge add interface wan ↵↵

Then attach the interfaces to the appropriate transports. Type in:

--> bridge attach lan ethernet ↵↵--> bridge attach wan hdlc ↵↵

Finally to allow IP management of the unit, create an IP interface "iplan" and attach the bridge to the IP stack:

--> ip add interface iplan <ipaddress> <netmask> ↵↵--> ip attachbridge iplan ↵↵


24

6.3.3 C0NFIGURATION AS A ROUTER

See the diagram below for an example configuration of AM200 being used as a router. AM200 defaults tobe a bridge, so first we must clear the bridge configuration. Type in:

--> bridge clear interfaces ↵↵--> ip clear interfaces ↵↵

Then we add IP interfaces for each side of the router, e.g. "lan" (the Ethernet user port) and "wan" (the DSLline interface).

--> ip add interface lan <ipaddress> <netmask> ↵↵--> ip add interface wan <ipaddress> <netmask> ↵↵

For the example above the following commands would be used at the CO.

--> ip add interface lan 10.10.1.1 255.255.0.0 ↵↵--> ip add interface wan 192.168.1.1 255.255.0.0 ↵↵

And at the CPE


Then attach the interfaces we have created to the appropriate transports.

--> ip attach lan ethernet ↵↵--> ip attach wan hdlc ↵↵

User PortIP 10.11.1.1Mask 255.255.0.0

User'sPC

User'sPC

User PortIP 10.10.1.1Mask 255.255.0.0

PCIP 10.11.18.8Mask 255.255.0.0Gateway 10.11.1.1


Hub Hub

LineIP 192.168.1.1Mask 255.255.0.0

LineIP 192.168.1.2Mask 255.255.0.0

leased line

AM200

CO

AM200

CPE


25

6

Then, add a default route for the wan link using the command

--> ip add defaultroute gateway <ipaddress> ↵↵


--> ip add defaultroute gateway 192.168.1.2 ↵↵

And at the CPE


Finally, add a route back to the connection on the LAN using the command:

--> ip add route <name> <subnet> <netmask> interface lan ↵↵


--> ip add route route1 10.10.0.0 255.255.0.0 interface lan ↵↵

And at the CPE


After doing these changes you must enter the following command and press the return key to store yoursettings. Type in:

--> system config save Normal ↵↵

Note: Wait for the CLI confirmation message before you switch off the AM200.


26

6.4 G703

To set up a G703 link. Start from factory default configuration. Set one unit to be a CO as described above.

Then on both units (CO and CPE) input the following commands.

First disable the Ethernet port, which is enabled by default. Type in:

--> hdlc set interface local adminstatus down ↵↵--> hdlc set interface local ntimes64k 0 ↵↵

Then enable the G703 port. Type in:

--> ds1 config set interface local adminstatus up ↵↵--> ds1 config set interface local chanelization disabled ↵↵

This will enable G703 port in the following configuration

· E1 Framed mode

· AM200 as the timing master for the link (both CO and CPE set to local timing)

· All 32 timeslots active

Note. The current line rate must be 2048k or greater for this configuration to operate correctly

CustomerTerminal

CustomerTerminal

G.703

copper pair

timing timing

AM200

CO

AM200

CPE


27

6

6.5 NX64

To set up an Nx64 link. Start from factory default configuration. Set one unit to be a CO as described above.

Then on both units (CO and CPE) input the following commands.

First disable the Ethernet port, which is enabled by default. Type in:

--> hdlc set interface local adminstatus down ↵↵--> hdlc set interface local ntimes64k 0 ↵↵

Then enable the Nx64 port. Type in

--> nx64 set interface local adminstatus up ↵↵--> nx64 set interface local ntimes64k linerate ↵↵

This will enable nx64 port in the following configuration

· V35 DCE interface

· Data rate equal to current line rate

CustomerTerminal

CustomerTerminal

X.21/V.35/RS530

copper pair

DCE DCE

AM200

CO

AM200

CPE


28

7 SELECTING THE CIRCUIT CONFIGURATION

The term 'digital section' refers to the data link between the user ports of the connected AM200s.

In a standalone section, the AM200s provide the complete transmission system.

In a tandem section, the AM200s are used to extend an existing circuit or network port. To achievesynchronous data transfer, the CO AM200 must derive its timing from the circuit to which it is connected.

A Point-to-Point link requires two AM200s, one CO and one CPE.

The AM200 at one end of the digital section is selected to be a CO; the remote end is selected to be a CPE.

For a tandem section, the AM200 connected to the tandem section is configured as the CO.

Please refer to the diagrams on the following pages.

7.1 STANDALONE SECTION

Key for following diagrams:

B

Clock Source

Buffer

CustomerTerminal

CustomerTerminal

AM200A AM200A

G.703/X.21/V.35/RS530/100BaseT

copper pair

CO CPE

TimingTiming


29

7

7.1.1 Internal Timing

7.1.1.1 G.703 to G.703 Internal Timing Master

Slave terminals are connected to the digital section at both ends. The clock source inside the CO thenbecomes the reference clock for the entire system.

The internal clock is generated at the CO. Both terminals lock to this clock and return the clock to theAM200s. An elastic store in the AM200 buffers the data.

1. At the CO, select the 'Local' timing option for the G.703 port.

2. At the CPE, select the 'Local' timing option for the G.703 port.

This is the default timing mode for G.703.

7.1.1.2 G.703 to X.21/V.35 Internal Timing

Slave terminals are connected to the digital section at both ends. A clock inside the CO then becomes thereference clock for the entire system.

The internal clock is generated at the CO. Both terminals lock to this clock and return the clock to theAM200s. An elastic store in the AM200 buffers the data.

1. At the CO, select the 'Local' timing option for the G.703 port.

2. At the CPE, select the 'DCE' mode option for the Nx64 port.

AM200CPE

AM200CO

Terminal Terminal

B

G.703 Nx64 DTENx64 DCEG.703

B

AM200CPE

AM200CO

Terminal Terminal

B

G.703 G.703G.703G.703

B


30

7.1.1.3 X.21/V.35 DCE to X.21/V.35 DCE

The terminals connected to the digital section at both ends are DTEs. A clock inside the CO then becomes thereference clock for the entire system.

1. At the CO, select the 'DCE' timing option for the Nx64 port.


This is the default timing mode for Nx64.

7.1.2 G.703 to G.703 Transparent Timing

In this configuration, the terminals are the source of timing. One of the connected terminals may act as amaster, the other as a slave. However, both terminals could operate independently or plesiochronously.

Clocks T1 and T2 are independent of one another and are transported independently through the DSL system.

1. At the CO, select the 'Through' timing option for the G.703 port.

2. At the CPE, select the 'Through' timing option for the G.703 port.

AM200CPE

AM200CO

MasterTerminal

SlaveTerminal

G.703 G.703G.703G.703

T1

T2

AM200CPE

AM200CO

Terminal Terminal

B

Nx64 DTENx64 DCE

B

Nx64 DCENx64 DTE


31

7

7.2 TANDEM SECTION - EXTERNAL TIMING

For the following configurations, the modems are connected in series with another transmission system orequipment that is the source of timing.

7.2.1 G.703 to G.703 External Timing

One of the connected terminals acts as a master, the other as a slave. A clock inside the master terminal thenbecomes the reference clock for the entire system.

The clock us transported across the digital section. The remote terminal locks to this clock and returns theclock to the AM200. An elastic store in the AM200 buffers the data.

1. At the CO, select the 'Loop' timing option for the G.703 port.

2. At the CPE, select the 'Local' timing option for the G.703 port.

AM200CPE

AM200CO

Network orTerminal

Terminal

G.703 G.703G.703G.703

B

NetworkCustomerTerminal

AM200A AM200A

G.703/X.21/V.35/RS530

copper pair

Timing

G.703/X.21/V.35/RS530/100BaseT

CO CPE


32

7.2.2 X.21/V.35 DTE-to X.21/V.35 DCE

In order to recover timing from the network, the CO end of the digital section must be configured as a DTE.

1. At the CO, select the 'DTE' timing option for the Nx64 port.


7.2.3 G.703-to X.21/V.35 DCE

1. At the CO, select the 'Loop' timing option for the G.703 port.


AM200CPE

AM200CO

Network orTerminal

Terminal

G.703 Nx64 DTENx64 DCEG.703

B

AM200CPE

AM200CO

Network orTerminal

Terminal

Nx64 DCE Nx64 DTENx64 DCENx64 DTE

B


33

7

7.3 CROSSING AN SDH NETWORK

Both AM200 sections take their timing from the network and both are configured the same. Use theconfigurations shown in sections 7.2.1 or 7.2.3.

Note: The SDH network might be configured to provide a PDH path, in which case see section 7.4

7.4 CROSSING A PDH NETWORK

In this example, a PDH network is shown where timing is passed transparently from end to end in bothdirections. From a timing point of view, this is equivalent to connecting Master A directly to Master B. Toprovide a Master clock to the system, side A should be set as in section 7.1.1 or 7.1.1.2, otherwise, withouta master clock somewhere in the path, the timing will be unstable.

G.703/X.21/V.35/RS530/100BaseT

CustomerTerminal

AM200A AM200A

G.703

Timing

CO B CPECustomerTerminal

AM200AAM200A

G.703

Timing

CO ACPE

PDHNetwork

G.703/X.21/V.35/RS530/100BaseT

G.703/X.21/V.35/RS530/100BaseT

CustomerTerminal

AM200A AM200A

G.703

Timing

CO CPE

G.703/X.21/V.35/RS530/100BaseT

CustomerTerminal

AM200AAM200A

G.703

Timing

COCPE

SDHNetwork


34

8 SETTING UP USING CLI

The AM200 can be set-up and controlled via the Command Line Interface (CLI) mode. The CLI mode isaccessed via a VT100 Terminal or PC connected to the Terminal port, or via a PC connected to the Ethernetport.

The PC needs to be running the TeraTerm VT100 emulation program. This program can be down loaded fromthe ATL website http://www.atltelecom.com/support/.

8.1 CONNECTION VIA TERMINAL PORT

Connect a VT100 terminal (or PC running TeraTerm VT100 emulation program) to the 9-way Terminal serialport on the front of the unit. Configure the serial port settings of the VT100 terminal to 19,200 baud, 8 bits,no parity, 1 stop bit and Xon/Xoff.

The log on prompt will appear once the AM200 has completed it’s power-on sequence. If the Logon promptdoes not appear, press the 'return' key and the Logon prompt will appear. Type in the default login name'admin'

The Password: prompt will then appear on the screen. Type in the default password 'admin'.

The →→ prompt should then be shown on the screen with a successful login. You are now ready to configurethe AM200 using CLI commands.


35

8

8.2 CONNECTION VIA ETHERNET PORT - TELNET

Connect an Ethernet cable from the Ethernet network to the Ethernet port on the rear of the unit. Start theTeraTerm software package. From the Menu bar select File, then select New Connection from the drop-downmenu.

Select the TCP/IP option and type in the default IP address for the AM200. The default IP address is

10.254.254.253.

Click on the OK button to save the connection.

After a few seconds you should then see the ATL Telecom Login: prompt on the screen. Type in the defaultlogin name 'admin' (Note in the following examples the IP address of the AM200 was set to 10.10.15.6,however you should use the correct IP address set for your AM200 unit)

The Password: prompt will then appear on the screen. Type in the default password 'admin'.

The →→ prompt should then be shown on the screen with a successful login. You are now ready to configurethe AM200 using CLI commands.


36

8.3 CLI COMMAND STRUCTURE

The CLI code Command structure is shown below.

<group> <sub-group> <command> <instance> <attribute-name> <attribute-value>

Definitions covering each section of the Command structure are listed below.

8.3.1 <GROUP>

This refers to the group command, which is based on the standard mib CLI command.

8.3.2 <SUB-GROUP>

This refers to a specific table within the CLI.

8.3.3 <COMMAND>

There are a number of possible operations that can be performed at this point. Not every attribute will workwith every operation. For instance, a read-only attribute will be accessible via a show command, but not a setcommand. The Commands available are listed and defined below.

set || show || list || add || delete

set - applies the <attribute-value> to the attribute.

show - displays the current value of the attribute.

list - displays all instance of the attribute.

add - generates a new instance.*

delete - removes the selected instance.*

8.3.4 <INSTANCE>

Represents the information required to resolve the instance.

8.3.5 <ATTRIBUTE-NAME>

This refers to a specific attribute within a MIB table.

* Where implemented.


37

8

8.3.6 <ATTRIBUTE-VALUE>

This is the string/integer or enumeration to be applied to the attribute for the set operation. It is also the valuedisplayed by the show operation.

<attribute-value> := <string> ||

<integer> ||

<bool> ||

<enum> ||

<timeticks>||

<oid>||

<ipaddr>||

<counter>

<bool>

Is "true" or "false".

<enum>

Is a string that presents an integer value. Where an attribute expects an enumeration the '?' keypadcommand will list the possibilities.

<timeticks>

Represents time in 1/hundreth of a second. The format displayed is ddd:hh:mm:ss.

<oid>

Is the object identifier reported eg. 1.3.6.14.1.13482.1.1.4 …

<counter>

Is a read-only 32bit integer.


38

8.4 CLI HELP COMMAND

By using the ? character when entering commands into the CLI, the User can receive help information on howto complete their command. Using the ? character will tell the CLI to list all the possible entries that can comenext.

The following example illustrates the way the ? character is used to help the user complete their command.In the example the line rate will be set to 2048K. Lines preceded with --> represents input from the user, linesnot preceded with anything represent the response from the CLI.

Type in :-

--> ??

The CLI will respond with :-

cconsole For debug use only

source Read a file of commands

help

ethernet Ethernet transport manipulation

system System-level commands

user

imdebug For debug use only

transports Bearer channels in use

ip Configure IP router

igmp

debcli For debug use only

eeprom For debug use only

inventory Configure and view generic information

hdlc Configure and view status of your hdlc interfaces (ethernet)

nx64 Configure and view status of your nx64 interfaces

ds0 Configure and view status of your ds0 interfaces (rfc2494)

ds1 Configure and view status of your ds1 interfaces (rfc2495)

am200 Configure and view status of your am200

pppoa

pppoe

pppoh

bridge Configure layer 2 bridge

dhcpclient

dhcpserver DHCP server configuration commands

dhcprelay

dnsrelay

dnsclient


39

8

security

firewall Firewall configuration commands

nat

webserverd

-->

Type in :-

-->am200 ??


show - Display value of specified attribute

set - Set value of specified attribute

list - List all existing am200s

-->am200

Type in :-

--> am200 set ??


interface

--> am200 set

Type in :-

--> am200 set interface ??


<name>

--> am200 set interface

Type in :-

--> am200 set interface local ??


expectedmodeltype

dslmode

managementmode

linerate

enableline

enablelcd

lcdtimeout

--> am200 set interface local


40

Type in :-

--> am200 set interface local linerate ??


<value>

- 192K, 256K, 320K, 384K, 448K, 512K,

- 576K, 640K, 704K, 768K, 832K, 896K,

- 960K, 1024K, 1088K, 1152K, 1216K, 1280K,

- 1344K, 1408K, 1472K, 1536K, 1600K, 1664K,

- 1728K, 1792K, 1856K, 1920K, 1984K, 2048K,

- 2112K, 2176K, 2240K, 2304K, RateAdaption

--> am200 set interface local linerate

To set the line rate to 2048k, type in :-

--> am200 set interface local linerate 2048K ↵↵

The line rate has now been set to 2048k.

To check that the line rate type in :-

--> am200 show interface local linerate ↵↵

The CLI will respond with:

Line Rate: 2048K

-->

8.5 CLI AUTO COMPLETE

You can use the tab key to auto-complete an entry. The CLI will compare your current partial entry againstthe list of possible complete entries, and find a match. If your partial entry matches more than one completeentry, you will have to carry on typing until your partial entry is unique.

The following example illustrates the auto-complete feature.

-->am (press Tab key)

As long as the partial entry is enough to uniquely identify a complete entry, then pressing tab will successfullyauto-complete the entry. The CLI will respond with:

-->am200

If the partial entry is not enough to uniquely identify a complete entry, then pressing tab will auto-completethe entry up to a point, whereby you must continue typing in order for the partial entry to uniquely identifya complete entry.


41

8

8.6 CHANGING THE IP ADDRESS

If you are going to use the Ethernet port to manage the AM200 then you must change the IP address. Toview the current IP address for the AM200 unit type: -

--> ip list interfaces ↵↵

The current IP address will now be displayed on the screen, ref example shown below

ID | Name | IP Address | DHCP | Transport----|-----------------|----------------------|---------------|----------------

1 | iplan |10.254.254.253 | disabled | <BRIDGE>

To change the IP address type in the following command including the new IP address (?.?.?.? represents thenew IP address).

--> ip set interface iplan ipaddress ?.?.?.? 255.255.0.0¿

In the following example the IP address will be changed to 10.10.15.6, the Input mask stays the same as255.255.0.0

Type In:-

--> ip set interface iplan ipaddress 10.10.15.6 255.255.0.0 ↵↵

8.7 SETTING CO/CPE

This attribute describes the DSL timing mode of the AM200. There are two modes, CO (central office) andCPE (Customers Premises Equipment). The CO unit is normally located at the network timing end of the DSLlink. The CPE unit is normally located at the customer premises end of the DSL link.

8.7.1 To set the AM200 as CPE

Note: This is the default setting of the AM200. To set the mode of the AM200 unit to CPE, type : -

--> am200 set interface local dslmode cpe ↵↵

8.7.2 To set as CO

To set the mode of the AM200 unit to CO, type : -


8.8 SETTING THE DSL LINE RATE

To view the current DSL Line Rate for the AM200 unit type : -

--> am200 show interface local linerate ↵↵


Line Rate: 2048K

-->


42

The line rate is set using the set linerate command. In the following example the Line Rate is set to 2048K.

Type in:

--> am200 set interface local linerate 2048K ↵↵ (to set the User Rate to 2048K)

Note

To view all of the possible line rate setting use the ? command as in the example below.

Type in :-

--> am200 set interface local linerate ↵↵


<value>

- 192K, 256K, 320K, 384K, 448K, 512K,

- 576K, 640K, 704K, 768K, 832K, 896K,

- 960K, 1024K, 1088K, 1152K, 1216K, 1280K,

- 1344K, 1408K, 1472K, 1536K, 1600K, 1664K,

- 1728K, 1792K, 1856K, 1920K, 1984K, 2048K,

- 2112K, 2176K, 2240K, 2304K, RateAdaption

--> am200 set interface local linerate

It is recommended that the DSL Line rate of the CPE unit is set to RateAdaption (it’s factory default setting).


43

8

8.9 MANAGEMENT MODE

In a ‘back to back’ connection, the local AM200 unit can be setup to configure the remote unit. The remoteunit (normally the CPE unit) is set to ‘slave’ (it’s factory default setting). The local AM200 (normally the COunit) must be set to ‘master’.

To set the local AM200 to ‘master’, type in:

--> am200 set interface local managementmode master ↵↵

The remote unit will already been set to slave (it’s factory default setting). However, if the management modeof the remote unit has not been altered. Type in the following command at the remote unit to set it to slave:

--> am200 set interface local managementmode slave ↵↵

Note the Expected Model type at the ‘master’ unit must match the slave model type. To view the currentexpected model type at the ‘master’, type in:

--> am200 show interface local expectedmodeltype ?

The unit will respond with the default model type:

Expected Model Type: am200EXG

You can change the expected model type by using the ‘set’ command. In the example shown below, ? is usedat the end of the CLI command to display the list of possible model types. The mode type is then changedto an AM200E.

--> am200 set interface local expectedmodeltype ?

<value>

- am200E

- am200EG

- am200EX

- am200EXG

--> am200 set interface local expectedmodeltype am200E

You can now configure the remote unit via the local unit.

To configure or view the remote unit, replace ‘local’ with ‘remote’ in the CLI command, e.g. to view the DSLlinerate of the remote unit type in:

--> am200 show interface remote linerate↵↵


44

8.10 THE USER INTERFACE

Each User Port is enabled separately and is dependent on the AM200 variant being used. Note the data ratebandwidth must not exceed the bandwidth allocated on the DSL line

8.10.1 Ethernet Port

8.10.1.1 Setting the Ethernet User Port Data Rate

Setting the data rate to a value greater than 0 enables the Ethernet port. To view the current Ethernet DataRate for the AM200 unit type : -

--> hdlc show interface local ntimes64k ↵↵


NTimes64K: LineRate

-->

The data rate is set using the set command. In the following example the Data Rate is set to 2048K.

Type in:

--> hdlc set interface local ntimes64k 2048K ↵↵ (to set the User Rate to 2048K)

To disable the Ethernet port set the data rate to 0 as in the following example.

Type in:

--> hdlc set interface local ntimes64k 0 ↵↵ (to disable the Ethernet port)

8.10.1.2 Enabling Alarm Reporting

To enable Alarm Reporting type:

--> hdlc set interface local adminstatus up ↵↵

To disable Alarm Reporting type:

--> hdlc set interface local adminstatus down ↵↵

8.10.2 G703 User Port

8.10.2.1 Enabling the G703 Alarm Reporting

To enable the G703 Alarm Reporting type in the following command.

--> ds1 config set interface local adminstatus up ↵↵

To disable the G703 Alarm Reporting type in the following command.

--> ds1 config set interface local adminstatus down ↵↵ (to disable the G703 User Port)

8.10.2.2 Setting the G703 Time slots


45

8

If the DSL Line Rate has been set below 2048k then some of the Time Slots will have to be disabled (fractionalE1). The number of time slots that need to be disabled depends on the DSL Line Rate. Each time slot (local-0 to local-31) must be disabled separately.

To show the current status of time slot 1 (local-0) type:

--> ds0 config show interface local-00 enable ↵↵

The CLI will respond with the following statement.

enable: 0

-->

1 equals enabled

0 equals disabled

To enable time slot local-00 type:

--> ds0 config set interface local-00 enable 1 ↵↵

To enable All of the timeslots the channalisation on DS1 must be disable, type:

--> ds1 config set interface local channelization disabled ↵↵

To disable time slot local-00, type:


8.10.3 Nx64 User Port

8.10.3.1 Enabling the Nx64 Alarm Reporing

To enable the Nx64 Alarm Reporting type:

--> nx64 set interface local adminstatus up ↵↵

To disable the Nx64 Alarm Reporting type in the following command.

--> nx64 set interface local adminstatus down ↵↵

8.10.3.2 Setting the Nx64 User Port Type

The Nx64 User Port can be configured as a V11, V35, RS232, RS449, EIA-530 or EIA-530A. To view the currentlist of options Use the ? command i.e. type:

--> nx64 set interface local type ↵↵


<value>

- V11

- V35

- RS530


46

--> nx64 set interface local type

e.g. To set the user port to V35 type in:

--> nx64 set interface local type v35

8.10.3.3 Setting The Nx64k User Port Data Rate

Setting the data rate to a value greater than 0 enables the Nx64 User port. To view the current Nx64k DataRate for the AM200 unit type:

--> nx64 show interface local ntimes64k ↵↵


NTimes64K: 0

-->

The data rate is set using the set command. In the following example the Data Rate is set to 2048K.

Type in:

--> nx64 set interface local ntimes64k 2048K ↵↵ (to set the User Rate to 2048K)

To disable the Nx64 User port set the data rate to 0 as in the following example.

Type in:

--> nx64 set interface local ntimes64k 0 ↵↵ (to disable the Nx64 User port)

Note

To view all of the possible line rate setting use the ? command type :-

--> nx64 set interface local ntimes64k ? ↵↵


<value>

- 0 (Off)

- 64K, 128K, 192K, 256K,

- 320K, 384K, 448K, 512K,

- 576K, 640K, 704K, 768K,

- 832K, 896K, 960K, 1024K,

- 1088K, 1152K, 1216K, 1280K,

- 1344K, 1408K, 1472K, 1536K,

- 1600K, 1664K, 1728K, 1792K,


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- 1856K, 1920K, 1984K, 2048K,

- 2112K, 2176K, 2240K, 2304K

- LineRate

--> nx64 set interface local ntimes64k


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8.11 BRIDGE

Probably the quickest way to change an AM200 to be a Bridge is to restore the factory default settings asdescribed in section 8.13. Otherwise the following commands will configure the AM200 to be a bridge.

First remove the router configuration. Type in:

--> ip clear interfaces ↵↵--> ip clear routes ↵↵--> ip clear riproutes ↵↵

Then add interfaces for each side of the bridge, e.g. "lan" for the Ethernet user port and "wan" for the DSLconnection: Type in:-

--> bridge add interface lan ↵↵--> bridge add interface wan ↵↵

Then attach the interfaces to the appropriate transports. Type in:

--> bridge attach lan ethernet ↵↵--> bridge attach wan hdlc ↵↵

Finally to allow IP management of the unit, create an IP interface "iplan" and attach the bridge to the IP stack:

--> ip add interface iplan <ipaddress> <netmask> ↵↵--> ip attachbridge iplan ↵↵

See the diagram below for an example configuration of AM200 being used as a bridge.

Figure 14 AM200 to AM200

AM200 AM200

CO CPE

Term

Test

User

Line

atl AM200

Term

Test

User

Line

atl AM200

IP Address10.1.1.1

Subnet Mask255.255.0.0

IP Address10.1.1.4


IP Address10.1.1.2


IP Address10.1.1.3



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For the configuration show above, type in the following at the CO:

--> ip clear interfaces ↵↵--> ip clear routes ↵↵--> ip clear riproutes ↵↵--> bridge add interface lan ↵↵--> bridge add interface wan ↵↵--> bridge attach lan ethernet ↵↵--> bridge attach wan hdlc ↵↵--> ip add interface iplan 10.1.1.2 255.255.0.0 ↵↵--> ip attachbridge iplan ↵↵--> system config save normal↵↵

For the configuration show above, type in the following at the CPE:

--> ip clear interfaces ↵↵--> ip clear routes ↵↵--> ip clear riproutes ↵↵--> bridge add interface lan ↵↵--> bridge add interface wan ↵↵--> bridge attach lan ethernet ↵↵--> bridge attach wan hdlc ↵↵--> ip add interface iplan 10.1.1.3 255.255.0.0 ↵↵--> ip attachbridge iplan ↵↵--> system config save normal↵↵


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8.12 ROUTER

See the diagram below for an example configuration of AM200 being used as a router. AM200 defaults tobe a bridge, so first we must clear the bridge configuration. At both units type in.

--> bridge clear interfaces ↵↵--> ip clear interfaces ↵↵

Then we add IP interfaces for each side of the router, e.g. "lan" (the Ethernet user port) and "wan" (the DSLline interface).

--> ip add interface lan <ipaddress> <netmask> ↵↵--> ip add interface wan <ipaddress> <netmask> ↵↵



And at the CPE


Then attach the interfaces we have created to the appropriate transports. At both units type in:

--> ip attach lan ethernet ↵↵--> ip attach wan hdlc ↵↵

Then, add a default route for the wan link using the command.

--> ip add defaultroute gateway <ipaddress> ↵↵

User PortIP 10.11.1.1Mask 255.255.0.0

User'sPC

User'sPC

User PortIP 10.10.1.1Mask 255.255.0.0



Hub Hub

LineIP 192.168.1.1Mask 255.255.0.0

LineIP 192.168.1.2Mask 255.255.0.0

leased line

AM200

CO

AM200

CPE


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And at the CPE


Finally, add a route back to the connection on the LAN using the command:

--> ip add route <name> <subnet> <netmask> interface lan ↵↵



And at the CPE


After doing these changes you must enter the following command and press the return key to store yoursettings. Type in:

--> system config save normal ↵↵


8.13 RIP

Rather than adding static routes you can use RIP to set the units to automatically detecting connected IPaddresses. Type in the following commands at both units;

--> ip set interface <DSL ipaddress name> rip accept all ↵↵--> ip set interface <DSL ipaddress name> rip send v2 ↵↵--> ip set interface <Ethernet ipaddress name> rip accept all ↵↵--> ip set interface <Ethernet ipaddress name> rip send v2 ↵↵

In the router example shown in section 8.11, rather than adding the static routes the routes can be learntautomatically by typing in the following commands at both the CO and CPE:

--> ip set interface wan rip accept all ↵↵--> ip set interface wan rip send v2 ↵↵--> ip set interface lan rip accept all ↵↵--> ip set interface lan rip send v2 ↵↵

It can take around 20 to 30 seconds for the routes to be learned. You can check that the required routes havebeen learnt by typing in:

--> ip list riproutes ↵↵

In the router example, typing in the list riproutes command would generate the following response from theCO unit:


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IP RIP routes

Destination | Mask | Gateway | Cost | Time | Source---------------------|--------------------|--------------------|--------|--------|----------10.11.0.0 | 255.255.0.0 | 192.168.1.2 | 2 | 180s | wan

-------------------------------------------------------------------------------------------

8.14 RESTORING FACTORY DEFAULT

The AM200 can be defaulted back to the original Factory default setting by typing:-

--> system config restore factory ↵↵

Wait for the CLI confirmation message before you switch off

Note: This will cause the IP address to be reset to the default setting.

8.15 SAVING CLI CHANGES

After doing any changes you must save the changes. The settings can be saved either in the ‘normal’ orbackup’ file. To save the settings into the ‘normal’ file, enter the following command and press the return key.Type in:

--> system config save normal ↵↵


If you do not enter this command then any changes will be lost if the AM200 is switched off.

8.16 RESTORING TO SAVED SETTINGS

The AM200 can be set back to either of the two saved settings Use the following CLI command to set theAM200 to the settings saved in the ‘normal’ file.

--> system config restore normal ↵↵

Use the following CLI command to set the AM200 to the settings saved in the ‘backup’ file.

--> system config restore backup ↵↵


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8.17 EXAMPLE CONFIGURATION

In the following examples two AM200s will be configured using the CLI. The configurations will then besaved. One unit will be configured as a CO (unit 1) the other as a CPE (unit 2) using the same interface. Usingthese configurations both units could be connected back to back Ref example shown in Figure 2.

8.17.1 G703 Example configuration

To set up a G703 link starting from the factory default settings.

Unit 1

Mode CO

Line Rate 2048kbps

User Port G703

Framming E1

Timeslots All 32 activated

Timing Local

Unit 2

Mode CPE

Line Rate RateAdaption

User Port G703

Framming E1

Timeslots All 32 activated

Timing Local

Unit 1

Type in :-


--> am200 set interface local linerate 2048K ↵↵--> hdlc set interface local adminstatus down ↵↵

--> hdlc set interface local ntimes64k 0 ↵↵--> ds1 config set interface local adminstatus up ↵↵--> ds1 config set interface local channelization disabled ↵↵--> system config save normal ↵↵


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Unit 2

Type in :-


--> hdlc set interface local ntimes64k 0 ↵↵--> ds1 config set interface local adminstatus up ↵↵--> ds1 config set interface local channelization disabled ↵↵--> system config save normal ↵↵

8.17.2 V35 Example configuration

To set up a 2048 kbps V35 link starting from the factory default settings.

Unit 1

Mode CO

Line Rate 2048kbps

User Port V35 DCE

Unit 2

Mode CPE


User Port V35 DCE

Unit 1

Type in :-



--> hdlc set interface local ntimes64k 0 ↵↵

--> nx64 set interface local adminstatus up ↵↵--> nx64 set interface local type v35 ↵↵

--> nx64 set interface local ntimes64 LineRate ↵↵--> system config save normal ↵↵


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Unit 2

Type in :-


--> hdlc set interface local ntimes64k 0 ↵↵--> nx64 set interface local adminstatus up ↵↵--> nx64 set interface local type v35 ↵↵

--> nx64 set interface local ntimes64 LineRate ↵↵--> system config save normal ↵↵

8.17.3 V35 & G703 Example configuration

To set up a 1024 kbps V35 link and a G703 1024kbps link starting from the factory default settings. Becauseonly 16 of the 32 G703 timeslots are to be used only 16 times slots are being set to enable.

Unit 1

Mode CO

Line Rate 2048kbps

N*64 User Port V35 DCE @ 1024k

G703 User Port E1 Framed

Framming E1

G703 Timeslots 16 timeslots activated

Timing Local

Unit 2

Mode CPE


N*64 User Port V35 DCE @ 1024k

G703 User Port E1 Framed

Framming E1

G703 Timeslots 16 timeslots activated

Timing Local


56

Unit 1

Type in :-




--> nx64 set interface local ntimes64 1024k ↵↵

--> ds1 config set interface local adminstatus up ↵↵


--> ds0 config set interface local-02 enable 1 ↵↵--> ds0 config set interface local-03 enable 1 ↵↵--> ds0 config set interface local-04 enable 1 ↵↵--> ds0 config set interface local-05 enable 1 ↵↵--> ds0 config set interface local-06 enable 1 ↵↵--> ds0 config set interface local-07 enable 1 ↵↵--> ds0 config set interface local-08 enable 1 ↵↵--> ds0 config set interface local-09 enable 1 ↵↵--> ds0 config set interface local-11 enable 1 ↵↵--> ds0 config set interface local-12 enable 1 ↵↵--> ds0 config set interface local-13 enable 1 ↵↵--> ds0 config set interface local-14 enable 1 ↵↵--> ds0 config set interface local-15 enable 1 ↵↵--> ds0 config set interface local-16 enable 1 ↵↵--> system config save normal ↵↵

Unit 2

Type in :-




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9 SETTING UP USING WEB BROWSER

The easiest way to configure the AM200 unit is via a web browser.

The default IP address for your AM200 unit is 10.254.254.253

The default configuration user name and password is admin.

9.1 INTERNET/EXPLORER SET-UP

If you are going to use Explorer then first check that your browser is set to use LAN for Internet access. To dothis, right click on the Internet/Explorer icon on your desktop and select Properties from the menu listed.

Select the Connections tab; ensure that the setting 'Never dial a connection' is selected (see Figure 15).

Figure 15 Internet Properties, Connections Tab

Select the LAN Settings button; ensure that none of the options have been selected (see Figure 16).

Figure 16 LAN settings


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9.2 OPENING THE WEB BROWSER

Open your Internet explorer and enter the default IP address of the AM200 into the Address/URL line andpress the return key. The web browser should then locate the AM200 Web Browser and the 'welcome' willappear (Figure 17). Down the left-hand side of the screen are listed the various menus that can be accessed.

Figure 17 AM200 Web Browser Welcome page

9.3 WEB BROWSER MENU'S

Before you can access any of the options listed under the System, Performance and Configuration menus youwill be prompted to enter a User Name and Password.

The default User name is ‘admin’.

The default Password is ‘admin’.


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9.3.1 HELP

Select the the help menu button to access the on-line help screen.

The online help facilities only provides a subset of the information to be found in this user guide. The help isstructured to match the web pages provided and does not describe the command line interface or the LCDinterface. Selecting one of the help options will open a screen outlining a brief description of the option

Figure 18 AM200 Web Browser Help page


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9.3.2 STATUS

Select the status menu button to access the status information screen (figure 19). The screendisplays the management, line and test status of the AM200. It also displays the LAN setting and softwareinformation. The screen will also show the management, line and test status information for the remoteunit(figure 20),if the management mode of the local unit has been set to master.

Figure 19 Status Screen

Figure 20 Status Screen Local set to Master


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9.3.3 SYSTEM

Select the system menu button to access the various system screens.

9.3.3.1 Error Log

The Error Log (Figure 21) displays a list of the errors that have occurred. The errors are listed in order with themost recent error at the top. 'When' indicates the time the error occurred relative to the time the modem wasswitched on or the time the last system re-boot was performed.

Figure 21 Error Log screen

9.3.3.2 Hardware

The Hardware screen (Figure 22) displays the current status of the Front Panel LEDs, power supply, Line andInterfaces.

Figure 22 Hardware Status screen


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9.3.3.3 Inventory

The Inventory screen (Figure 23) lists the current versions software plus the AM200's manufacturer'sinformation i.e. serial number, date of manufacture etc. At the top of the Inventory screen the User can recordthe name, description and location of the AM200 unit. Click on the 'Apply' button to save the information.

Figure 23 Inventory Screen


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9.3.3.4 Remote Access

This screen (Figure 24) allows the User to permit temporary remote administration of the unit.

Figure 24 Remote Access screen

9.3.3.5 Upgrade

The Upgrade screen (Figure 25) allows the User to upgrade the system software via the web browser. Selectthe 'Browse' option to locate the drive/directory that contains the new software. Now select the 'Upgrade'option to load the new software into the AM200 unit. Following the upgrade you will be prompted to re-start the AM200 unit.

Figure 25 Firmware Upgrade screen


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9.3.3.6 Restart

The Restart screen (Figure 26) provides a way to restart the unit using either the latest saved settings or thefactory default settings. Select the 'Restart' option (Figure 26) to restart the AM200 unit using the latest savedsettings.

Figure 26 Restart Screen

To restart the AM200 using the factory default settings select the 'reset the factory default settings' box(Figure 27). Now select the 'Restart' option (Figure 26) to restart the AM200 unit using the factory defaultsetting.

Figure 27 Reset to Factory Settings screen


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9.3.3.7 System Time

The System Time screen (Figure 28) allows the user to set the system time. This setting is not retained duringpower off.

Figure 28 System Time Screen


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9.3.4 ADVANCED STATUS

Selecting the arrow to the right of Advanced Status to display the 5 options, DHCP server, DNS client, DNSrelay, Security and User Ports.

9.3.4.1 DHCP Server

The DHCP screen (Figure 28) shows the current status information relating to the DHCP server.

Figure 28 DHCP Server Status screen

9.3.4.2 DNS Client

The DNS Client screen (Figure 29) lists the available DNS servers and the status information regarding the DNSclient.

Figure 29 DNS Client status screen


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9.3.4.3 DNS Relay

The DNS Relay screen (Figure 30) shows the status of the DNS Relay.

Figure 30 DNS Relay status screen

9.3.4.4 Security

The Security screen (Figure 31) displays the current status of the various security protocols.

Figure 31 Security Status screen


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9.3.4.5 User Ports

Selecting the User Port option opens a sub menu containing a list of the various user ports.

The information shown in all of the screens can be refreshed by pressing the refresh button

9.3.3.5.1 DS1The DS1 screen (Figure 32) displays the DS1 status information.

Figure 32 DS1 screen


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9.3.4.5.2 HDLCThe HDLC screen (Figure 33) displays the HDLC status information.

Figure 33 HDLC Status screen

9.3.4.5.3 Nx64The Nx64 screen (Figure 34) displays the Nx64 status information.

Figure 34 Nx64 Status screen


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9.3.5 PERFORMANCE

To view the performance of the unit select the Performance menu. From the subsequent sub-menu the Usercan view the performance of either the DSL line or the DS1 G703 connection.

9.3.5.1 DSL

The DSL screen (Figure 35) displays the current performance information of the DSL line connection. It alsoshows the performance for the line over the last 15 minutes and the last 24 hours.

Figure 35 Transmission Line Performance screen


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9.3.5.2 DS1

The DS1 screen (Figure 36) displays the performance information of the DS1 E1/G703 User Port connection.The performance for the connection is displayed over the last 15 minute and over the last 24 hours. The24hour information is split into Totalised Performance and performance over the last 24 hours in 15 intervals

Select the ‘view these entries’ button to display the detailed information. Figure 37 shows an example of theperformance information screen.

Figure 36 DS1 Performance screen

Figure 37 Performance Information

9.3.6 CONFIGURATION


72

Selecting the arrow to the right of Configuration to display the 9 options, Save, Authentication, DHCP server,DNS client, DNS relay, Device, IP Routes, Login, Security and User Ports.

9.3.6.1 Save

The Save screen (Figure 38) allows the User to save the latest AM200 configuration. If the configuration is notsaved then it will be lost if the unit power fails or is restarted.

Figure 38 Configuration Save screen

9.3.6.2 Authentication


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The Authentication screen (Figure 39) allows the User to control the access to the AM200 via the webbrowser. To add a new user account select the 'Create new user' option. In the New User screen (Figure 40),type in the new user's user name, password and any comments into the appropriate fields and select the'Create' button.

Figure 39 User Access screen

Figure 40 Add New User screen

9.3.6.3 DHCP Server


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The AM200 can be set-up as either a DHCP sever or as a DHCP relay agent. To set-up the AM200 as aDHCP server select the 'DHCP server' option and then select the 'configure' button.

Figure 41 DHCP Server screen

The DHCP Server Set-up (Figure 42) screen allows the user to set a range of IP addresses that can be assignedto the DHCP clients on the network. Alternatively the user can select a default range calculated using the IPaddress assigned to the AM200.

The Leased Time section allows the user to set a default and maximum time period that the IP address will beassigned. At the end of the maximum time period the IP address is considered free and can be assigned toanother client.

Figure 42 DHCP Server Set-up screen


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To set-up the AM200 as a DHCP Relay Agent select the 'DHCP relay agent' option and then select the'configure' button. The AM200 can now be configured (Figure 43) as a DHCP relay agent. Enter the IP addressof the DHCP sever in the appropriate box and press the 'apply' button.

Figure 43 DHCP Relay Agent screen

9.3.6.4 DNS Client

The DNS Client screen (Figure 44) allows the AM200 to use DNS names rather than IP Addresses. To Add aDNS server, type in the IP address for the DNS server in the box below the DNS Servers heading and select theadd button. More than one DNS server can be added.

The 'Domain Search Order' option allows the user to list the order in which the DNS servers are searched forthe IP address that corresponds to the domain name. The top DNS server is searched first, then the secondDNS server is search, and so on until either a match is found or all of the DNS servers have been searched.

Figure 44 DNS Client screen


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9.3.6.5 DNS Relay

THE DNS Relay screen (Figure 45) allows the user to set-up the AM200 as a DNS relay. The DNS Relay will relaya DNS query from a LAN host and send back the IP address to the LAN. To set-up the DNS relay, select the'Enabled' option and then select the 'Configure' option.

Figure 45 DNS Relay screen

The DNS Enable Relay screen (Figure 46) allows the user to enter the IP address of the DNS server. Afterentering the IP address select the apply option.

Figure 46 DNS Relay Configuration screen


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9.3.6.6 DEVICE

The Device screen (Figure 47) allows the user to set the AM200 dsl mode as either CO or CPE.plus the usercan select the required line rate from the Line Rate drop-down menu. The DSL line can also be enabled ordisabled by selecting the required option from Enable Line drop-down menu.

The Management Mode option allows you to set the management mode as either a Slave, Master orIndependent. Setting the management mode to Master (Figure 48) will allow you to configure the remoteslave unit. The remote configuration options are displayed once the master mode has been selected and theapplied button has been selected. The model shown in the Expected Model Type option must match theremote model type.

For LCD variants the user can also enable or disable the LCD and set the LCD timeout (in minutes).

Figure 47 Device Configuration screen


78

Figure 48 Device Configuration Local and Remote


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9.3.6.7 IP Routes

The IP Routes Screen (Figure 49) allows the user to set-up the AM200 as a static router. These are routes thathave been permanently entered into a routing table. Static routes are only affected by the relevant commands- they do not change automatically. To create a new static route select the 'Create new static routes' option.The resulting Create Static Routes screen (Figure 50) will be displayed. The user can now enter the static routeinformation. Select the OK button to save the static route information.

Figure 49 IP Routes screen

Figure 50 Create Static Route screen


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9.3.6.8 Login

The Login screen (Figure 51) allows you to set-up some authentication and login details, which may berequired by your Internet Service provider.

Figure 51 Login screen

9.3.6.9 Security

The Security screen (Figure 52) allows the user to enable or disable the security state. It also allows the userto configure the security interfaces and firewall settings.

Figure 52 Security configuration screen

To Configure the Security Interface, select the 'Add Interface' in the Security Interfaces section. The AddInterface screen (Figure 53) will then be displayed. The user can now select the interface type required fromthe drop-down menu. Once the necessary changes have been carried out select the 'Apply' button.


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Figure 53 Security Add Interface screen

To View the current Firewall policy, select the 'Firewall Policy Configuration' option in the Policies, Triggers &Intrusion Detection section. To add a new firewall policy, select the 'New Policy' option. The Firewall Addpolicy screen (Figure 55) will then be displayed.

Figure 54 Security Firewall Policy screen

The user can now select the firewall options they require from the drop-down menus. Once the necessarychanges have been carried out select the 'Apply' button.

Figure 55 Security Add Firewall Policy screen


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9.3.6.10 User Ports

Select the arrow to the right of 'Configuration' to display the 9 options. Select the arrow to the right of 'Ports'to display the various User Port options.

Note the selected User Rate must not exceed the selected DSL Line Rate.

9.3.6.10.1 DS0The Manage DS0 screen (Figure 56) allows the user to enable or disable specific time slots. Placing a '1' in atime slot enables that timeslot once the applied button has been selected.Placing a '0' in a time slot disablesthat timeslot once the applied button has been selected.

Only the enabled time slots are transmitted by the line i.e. If a data rate of 1024Kbps is required, then only16 time slots should be enabled, (16 * 64kbps = 1024kbps) the remaining 16 timeslots must be disabled.

Figure 56 DS0 User Port screen


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9.3.6.10.2 DS1 User PortThe Manage DS1 screen (Figure 57) allows the user to configure the DS1 User Port. To enable the User Portthe Admin Status option must be set to 'up'. The screen allows the user to set the required line type, codingand various signal and timing options. Once all of the necessary changes have been carried out, select the'apply' option.Note, the remote unit’s port can also be configured (Figure 58) if the local unit has been set as‘master’.

Admin Status

Setting this to ‘Up’ signifies the G703 interface is being managed. Setting this to ‘down’ signifies that theinterface is not being managed.To disable the DS1user port the Admin Status must be set to ‘down’

Enable Link Up Down TRap

Setting this to True ensures that trap messages will be sent should the interface become unavailable. Settingthis to False turns off the trap messages.

Line Type

Three line type options are available, E1, E1 CRC and E1 unframed

Transmit Clock Source

Three options are available,

Local Timing - Local clock source is used or when an external clock is attached.

Loop Timing - The recovered received clock is used as the transmit clock.

Through Timing - The recovered received clock from another interface is used as the transmit clock

Line Status Change Trap Enable

Setting this to ‘True’ will generate a trap whenever the DS1 interface has a state change. Setting this to ‘False’turns off the trap.

Channalization

This option allows you to specify how many timeslots are to be sent over the dsl line. Two options areavailable:

Disabled - Allows full E1 transmission (32 time slots) over the DSL link

EnabledDs0 - Allows fractional E1 transmission. The required individual timeslots must be enabled via the Ds0User Port screen.

Timeslot Zero

Two options are available:

Regenerated - Generates Ds0 zero at the interface rather than transporting it.


84

Inverted - Modify Ds0 zero for transport over the DSL line.

Figure 57 DS1 User Port screen

Figure 58 DS1 User Port Local & Remote screen


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9.3.6.10.3 HDLC PortThe HDLC port is the WAN (DSL) side of the bridge/router The Manage HDLC screen (Figure 59) allows theuser to configure the HDLC Ethernet User Port. To enable the User Port the Admin Status option must be setto 'up'. The required Ntime64 data rate can be selected from the drop-down option list. The NTimes64K mustbe set to the required data rate. The screen allows the user to set the 'Enable Link Up Down Trap' to true orfalse. Once all of the necessary changes have been carried out, select the 'apply' option.

To disable the Ethernet port the Admin Status must be set to ‘down’ and the NTimes64K must be set to zero.

Note, the remote unit’s port can also be configured (Figure 60) if the local unit has been set as ‘master’.

Admin Status

Setting this to ‘Up’ signifies the HDLC interface is being managed. Setting this to ‘down’ signifies that theinterface is not being managed.To disable the Ethernet port the Admin Status must be set to ‘down’

Enable Link Up Down TRap


NTimes64K

This allows the user to set the amount of DSL bandwidth used by the interface. In an end to end connectionthe Ntimes64 setting on the CO and the CPE units must be the same. To disable the Ethernet port theNTimes64K must be set to zero.

Figure 59 HDLC User Port screen


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Figure 60 HDLC User Port Local & Remote


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9.3.6.10.4 N*64 User PortThe Manage Nx64 screen (Figure 61) allows the user to configure the Nx64 User Port. To enable the User Portthe Admin Status option must be set to 'up'. The required Ntime64 data rate can be selected from the drop-down option list. The NTimes64K must be set to the required data rate. The screen allows the user to set therequired mode, clock, alarms, Interface type and various control options. Once all of the necessary changeshave been carried out, select the 'apply' option.Note, the remote unit’s port can also be configured (Figure62) if the local unit has been set as ‘master’.

To disable the Nx64 port the Admin Status must be set to ‘down’ and the NTimes64K must be set to zero

Admin Status

Setting this to ‘Up’ signifies the Nx64 interface is being managed. Setting this to ‘down’ signifies that theinterface is not being managed.To disable the Nx64 port the Admin Status must be set to ‘down’.

Enable Link Up Down Trap


NTimes64K

This allows the user to set the amount of DSL bandwidth used by the interface. In an end to end connectionthe Ntimes64 setting on the CO and the CPE units must be the same. To disable the Nx64user port theNTimes64K must be set to zero.

Type

This allows you to specify the operation of the interface. Three options are available, V11, V35 or RS530.

Mode

This allows you to set the timing characteristic of the Nx64 interface. There are two options

DCE - This is the option normally specified on the CPE unit.

DTE - This option receives an external timing signal and is normally specified on the CO unit.

EnableDTEClock

The option only applies if the interface mode has been set to DCE. This option enables the DCE to accept anexternal clock signal. There are two options:

True - Accepts DTE’s clock signal

False - The DCe uses it’s own clock, normal operation.


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Clock Signal Lost Alarm Enable

The option only applies if the interface mode has been set to DTE. There are two options:

True - The loss of the incoming clock signal will be reported as a trap.

False - The loss of the incoming clock signal is not reported.

Clock Out Of Range Alarm Enable


True - Reports that the incoming clock signal is out of range.

False - Is not reported.

Circuit106 Clamp On


True - Clamps the CTS circuit to ON

False - CTS follows RTS

Figure 61 Nx64 User Port screen


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Figure 62 Nx64 Configuration Local & Remote screen


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9.3.7 TEST

Selecting the arrow to the right of Test to display the 3 options, DS0, DS1 and N*64.

9.3.7.1 DS0

The Test DS0 Screen (Figure 63) allows the user to apply a loop-back test to the individual timeslots. Selectthe 'Apply' button to activate the selected loop-backs.

Figure 63 DS0 Test screen

9.3.7.2 DS1

The Test DS1 screen (Figure 64) allows the user to apply Payload, Line or Inward test loops to the E1 G703User Port. Select the 'Apply' button to activate the selected loop-back.

Figure 64 DS1 Test screen


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9.3.7.3 Nx64

The Test Nx64 screen (Figure 65) allows the user to apply either Local Loop or Loop Back test loops to theNx64 User Port. Select the 'Apply' button to activate the selected loop.

Figure 65 Nx64 Test screen

9


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9.3.7.4 BERT TESTER

The Test Nx64 screen (Figure 65) allows the user to apply either Local Loop or Loop Back test loops to theNx64 User Port. Select the 'Apply' button to activate the selected loop.

Figure 65 Bert Data Tester screen

Figure 65 Bert Data Tester Results screen


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10

10 SETTING UP USING THE LCD

The front panel menu system allows you to make all of the necessary changes via the three front panelbuttons and the liquid crystal display. The commands show in each menu are identical to the CLI commandsoutlined in section 8.

On power-on, and after a button inactivity timeout, the LCD display will revert to a status display. The upperLCD display line will show the product name, management mode and DSL mode, while the lower LCD displayline will show the DSL and user port states (Up, Errored, Down or Disabled) in rotation.

This display, and some of the 'Show' sub-menu items, is refreshed automatically every two seconds.Pressingany one of the three buttons will wake-up the LCD.

10.1 MENU STRUCTURE

The menu structure is hierarchical. The upper LCD display line shows the current menu level. If appropriate,the lower LCD display line shows one of the sub-menus available from the current menu level. The 'Up' and'Down' arrow buttons are used to scroll between all available sub-menus. The 'Select' button is used totraverse to the sub-menu currently displayed on the lower LCD display line.

If sub-menus are available below the current menu level, the upper LCD display line will terminate with a ":"character.

Most menus have 'Show' and 'Set' sub-menus.The 'List' sub-menus are bottom-level sub-menus and list, onthe lower LCD display line, all interfaces for the menu (usually "Local" and, if appropriate, "Remote").

10.1.1 SHOW SUB-MENUs

When a 'Show' sub-menu is entered, the available interfaces are listed on the lower LCD display line (usually"Local" and, if appropriate, "Remote"). Once an interface has been selected (using the 'Select' button), thelower LCD display line will list one or more bottom-level items which can be chosen by the 'Select' button.The upper LCD display line will then terminate with a ">" character, whilst the lower LCD display line showsthe value of the item selected. In some cases, the 'Up' and 'Down' arrow buttons can be used to scrollbetween a number of values for the item. If there is only a single value, the 'Up' arrow button can be usedto return to the previous menu level. If the item displayed is "setable", the 'Select' button can be used tojump directly to the 'Set' sub-menu for the item. All 'Show’ items are automatically refreshed if the valuechanges.

10.1.2 SET SUB-MENUs

When a 'Set' sub-menu is entered, the available interfaces are listed on the lower LCD display line (usually"Local" and, if appropriate, "Remote"). Once an interface has been selected (using the 'Select' button), thelower LCD display line will list one or more bottom-level items which can be chosen by the 'Select' button.The upper LCD display line will then terminate with a "=" character, whilst the lower LCD display line showsone of the available settings for the item selected. The 'Up' and 'Down' arrow buttons can be used to scrollbetween the settings and the 'Select' button used to chose.

Most sub-menus contain a "RETURN" menu option to allow the user to return to a higher-level menu.Alternatively, pressing both the 'Up' and 'Down' arrow buttons simultaneously will navigate up to theprevious menu level.

AM200:Master:Co

Line:Up


94

10.1.3 MENU STRUCTURE LAYOUT

Figure 66 AM200 LCD Menu Structure

AM200 Inventory Ds1 Hdlc Nx64 SystemDs0

PsuType

N*64Fitted

E1 Type

PsuOk

Line Power

Ds1Mode

ExpectedModel

Line State

ManagementState

UserportState

ErrorCounts

TotalErrorCounts

SnrMargin

State

CurrentLineRate

EnableLine

LCDTimeout

FpgaVersion

LineRate

ManagementMode

Test State

Attenuation

Name

Description

ProductDescript

HwVersion

Location

SwVersion

ModelType

ReorderCode

ModNumber

PoweredUpPeriod

SerialNumber

FpgaNumber

CountryManufacturer

BootblockVersion

NumberOfStartups

DateManufacture

NameManufacturer

Enable

Loopback

AdminStatus

TXClocksourse

Channelization

TimeslotZero

Line Type

LoopbackConfig

StatusTrapEnable

Userport State

TimeElapsed

Staus

StatusLastChange

LoopbackStatus

LinkTrapEnable

ValidIntervals

AdminStatus

LinkTrapEnable

UserPort State

NTimes64k

EnableDteClock

Circuit106Clamp

LoopBack

LinkTrapEnable

SignalLostEnable

UserportState

CRTS(105)

CTS(106)

DTR(108)

I/DCD(109)

LL(141)

TM(142)

SignalLostStatus

ClkOORangeStatus

RL(140)

LocalLoop

ClkOORangeEnable

DSR(107)

AdminStatus

Type

Mode

NTimes64K

Restart

Config

Indicates options available in boththe 'set' and 'show' sub-menu

Indicates options available only inthe 'show' sub-menu


95

10

10.2 AM200 MENU

The AM200 menu allows you to either view or configure the current set-up and mode of operation using the'show' and 'set' options.

Note: The dotted lines show the options listed under each menu using the 'up' and 'down' buttons.

10.2.1 SHOW OPTION

Selecting the 'show' option will display the following sub-menu

Selecting the 'local' option will display the following sub-menu.

Note: The remote option is only valid when the unit has been set to 'master'

AM200:Show:

Local

(Remote)

RETURN

AM200:

Show

Set

RETURN


96

10.2.2 SET OPTION

Selecting the 'set' option will display the following sub-menu

Selecting the 'local' option will display the following sub-menu. Use the 'up' and 'down' buttons until thedesired option is displayed. Press the 'select' button to access the desired menu.


AM200:Set:

Local

(Remote)

RETURN

Show:Local:

DslMode

LinePower

N*64Fitted

E1Type

PsuOk

ExpectedMode

ManagementMode

PsuType

UserportState

TestState

ManagementState

LineState

CurrentLineRate

LineRate

State

SnrMargin

Attenuation

TotalErrorCounts

ErrorCounts

RETURN

FpgaVersion

LcdTimeout

EnableLine


97

10

10.2.2.1 DS1MODE

This sub-menu allows you to set the AM200 as either a CPE or CO.

10.2.2.2 MANAGEMENT MODE

This sub-menu allows you to set the AM200 as either Slave, Master or Independent. To allow remoteconfiguration, the remote unit must be configured as a 'slave' unit.

10.2.2.3 EXPECTED MODEL

This will only have an effect for the "Remote" interface.

Local:ExpModel=

Am200EXG

RETURN

Am200E

Am200EX

Am200EG

Local:ManMode=

Slave

RETURN

Master

Independent

Local:Mode=

Cpe

RETURN

Co

Set:Local:

DslMode

ExpectedMode

ManagementMode

LineRate

LcdTimeout

EnableLine


98

10.2.2.4 LINE RATE

This allows you to set the required DSL line rate. If the unit has been set as a CPE, it is recommended that theline rate is set the RateAdaption.

10.2.2.5 ENABLE LINE

This allows you to enable or disable the DSL Line.

10.2.2.6 LCD TIME

This allows you to set the inactivity timeout. The 'Up' and 'Down' arrow buttons will increment or decrement,respectively, the LcdTimeout value. The value is in minutes. A value of "0" equates to no timeout. It is notpossible to scroll down past the "RETURN" value. Once a timeout value greater than 0 has been set, thedisplay will return to the Status Menu once the unit has been idle for a time equal to the timeout set.

Local:EnLine=

0

RETURN

Local:EnLine=

True

RETURN

False

Local:LineRate=

192k

RETURN

256k:2304k

RateAdaption


99

10

10.3 INVENTORY MENU

The Inventory menu allows you to view the hardware and software inventory.


10.3.1 SHOW OPTION




Show:Local:

Name

Location

Description

RETURN

NameManufact

CountryManufact

DateManufacture

FpgaVersion

SerialNumber

PoweredUpPeriod

NumberOfStartups

ModNumber

ReorderCode

ModelType

Bootblock Version

SwVersion

HwVersion

ProductDescript

Inventory:Show:

Local

(Remote)

RETURN

Inventory:

Show

RETURN


100

10.4 DS0 MENU

The DS0 menu allows you to either view or configure the DS0 using the 'show' and 'set' options.


10.4.1 DS0 SHOW OPTION




10.4.2 DS0 SET OPTION


Selecting the 'local' option will display the following sub-menu. Use the 'up' and 'down' buttons until thedesired option is displayed. Press the 'select' button to access the desired menu.


Ds0:Set:

Local

RETURN

(Remote)

Show:Local:

Enable

RETURN

LoopBack

Ds0:Show:

Local

RETURN

(Remote)

Ds0:

Show

RETURN

Set


101

10

The user can now select either the enable timeslots or the loopback option.

10.4.2.1 ENABLE TIMESLOTS

The user can now enable the individual timeslots by selecting the required timeslot and changing it from a 0to a 1.

10.4.2.2 SET LOOPBACKS

The user can now enable the individual loopbacks by selecting the required loopbacks and changing it fromtrue to false.

Local:Loopback>

TS0:True

RETURN

TS1:True:TS31:True

Local:Enable>

TS0:0

RETURN

TS1:0:TS31:0

Set:Local:

Enable

RETURN

LoopBack


102

10.5 DS1 MENU

The DS0 menu allows you to either view or configure the G703 using the 'show' and 'set' options. Select theconfig option to view or set the current configuration.


10.5.1 DS1 SHOW OPTION



Note: The remote option is only valid when the unit has been set to 'master.

Config:Show:

Local

(Remote)

RETURN

Ds1:Config:

Show

Set

RETURN

Ds1:

Config

Total

Current

RETURN


103

10

'

10.5.2 DS1 SET OPTION


Selecting the 'local' option will display the following sub-menu. Use the 'up' and 'down' buttons until thedesired option is displayed. Press the 'select' button to access the desired menu.Note: The remote option isonly valid when the unit has been set to 'master'

Set:Local

AdminStatus

LineType

TxClockSource

Channelisation

TimeslotZero

LoopbackConfig

LinkTrapEnable

StatusTrapEnable

RETURN

Config:Set:

Local

(Remote)

RETURN

Show:Local

AdminStatus

LineType

TxClockSource

Channelisation

TimeslotZero

LoopbackConfig

LinkTrapEnable

StatusTrapEnable

UserportEnable

TimeElapsed

RETURN

ValidIntervals

Status

StatusLastChange

LoopbackStatus


104

10.5.2.1 ADMIN STAUS

Setting this to ‘Up’ signifies the G703 interface is being managed. Setting this to ‘down’ signifies that theinterface is not being managed

10.5.2.2 LINE TYPE

Three line type options are available, E1, E1 CRC and E1 unframed

10.5.2.3 TxC CLOCK SOURCE

Three options are available,

Local Timing - Local clock source is used or when an external clock is attached.

Loop Timing - The recovered received clock is used as the transmit clock.

Through Timing - The recovered received clock from another interface is used as the transmit clock

Local:TxClock=

LoopTiming

LocalTiming

ThroughTiming

RETURN

Local:LineType=

E1

E1 Crc

E1 Unframed

RETURN

Local:AdStatus=

Up

Down

Test

RETURN


105

10

10.5.2.4 CHANNELIZATION

This option allows you to specify how many timeslots are to be sent over the dsl line. Two options areavailable:

Disabled - Allows full E1 transmission (32 time slots) over the DSL link

EnabledDs0 - Allows fractional E1 transmission. The required individual timeslots must be enabled via the Ds0User Port screen.

10.5.2.5 TIMESLOTS

Two options are available:

Regenerated - Generates Ds0 zero at the interface rather than transporting it.

Inverted - Modify Ds0 zero for transport over the DSL line.

10.5.2.6 LOOPBACK

Four options are available:

NoLoop - Switches off all loops

PayloadLoop - The received signal at the interface is looped through the device.

LineLoop - The received signal is looped back without going through the device

Inward Loop - The transmitted signal at the interface is looped back and received by the same interface.

Local:LoopConf=

NoLoop

PayloadLoop

RETURN

LineLoop

InwardLoop

Local:Timeslot=

Regenerated

Inverted

RETURN

Local:Channel=

EnabledDs0

Disabled

RETURN


106

10.5.2.7 LINK TRAP ENABLE


10.5.2.8 STATUS TRAP ENABLE

10.6 HDLC MENU

The HDLC menu allows you to either view or configure the Ethernet interface using the 'show' and 'set'options. Select the config option to view or set the current configuration.


10.6.1 HDLC SHOW OPTION



Hdlc:Show:

Local

RETURN

(Remote)

Hdlc:

Show

RETURN

Set

Local:STrapEn=

True

False

RETURN

Local:LTrapEn=

True

False

RETURN


107

10

10.6.2 HDLC SET OPTION




Setting this to ‘Up’ signifies the Ethernet interface is being managed. Setting this to ‘down’ signifies that theinterface is not being managed. To disable the Ethernet port the Admin Status must be set to ‘down’

Local:AdStatus=

Up

RETURN

Down

Test

Set:Local

AdminStatus

RETURN

NTimes64

LinkTrapEnable

Hdlc:Set:

Local

RETURN

(Remote)

Show:Local

AdminStatus

RETURN

UserportState

NTimes64

LinkTrapEnable


108

10.6.2.2 NTimes64K

This allows the user to set the amount of DSL bandwidth used by the interface. In an end to end connectionthe Ntimes64 setting on the CO and the CPE units must be the same. To disable the Ethernet port theNTimes64K must be set to zero.

10.6.2.3 Link Trap Enable


10.7 Nx64 MENU

The Nx64 menu allows you to either view or configure the Nx64 interface using the 'show' and 'set' options.Select the config option to view or set the current configuration.


Nx64k:

Show

RETURN

Set

Local:LtrapEn=

True

RETURN

False

Local:Nx64k=

0 (off)

RETURN

64k:2304k

LineRate


109

10

10.7.1 Nx64 SHOW OPTION



Show:Local

AdminStatus

DSR(107)

NTimes64k

Type

Mode

EnableDceClock

Circuit106Clamp

LocalLoop

LoopBack

LinkTrapEnable

SignalLostEnable

Clk00RangeEnable

UserportState

C/RTS(105)

CTS(106)

DTR(108)

I/DCD(109)

RL(140)

LL(141)

TM(142)

SignalLostStatus

Clk00RangeStatus

RETURN

Nx64k:Show:

Local

RETURN

(Remote)


110

10.7.2 Nx64 SET OPTION




Setting this to ‘Up’ signifies the Nx64 interface is being managed. Setting this to ‘down’ signifies that theinterface is not being managed. To disable the Nx64 port the Admin Status must be set to ‘down’

Local:AdStatus=

Up

RETURN

Down

Test

Set:Local

AdminStatus

NTimes64k

Type

Mode

EnableDceClock

Circuit106Clamp

LocalLoop

LoopBack

LinkTrapEnable

SignalLostEnable

Clk00RangeEnable

RETURN

Nx64k:Set:

Local

RETURN

(Remote)


111

10

10.7.2.2 NTimes64K

This allows the user to set the amount of DSL bandwidth used by the interface. In an end to end connectionthe Ntimes64 setting on the CO and the CPE units must be the same. To disable the Nx64 port the NTimes64Kmust be set to zero.

10.7.2.3 TYPE

This allows you to specify the operation of the interface. Three options are available, V11, V35 or RS530.

10.7.2.4 MODE

This allows you to set the timing characteristic of the Nx64 interface. There are two options

DCE - This is the option normally specified on the CPE unit.

DTE - This option receives an external timing signal and is normally specified on the CO unit.

Local:Mode=

DceTerminated

RETURN

DteTerminated

Local:Type=

V11

RETURN

V35

RS530

Local:Nx64k=

0 (off)

RETURN

64k:2304k

LineRate


112

10.7.2.5 ENABLE DTE CLOCK

The option only applies if the interface mode has been set to DCE. This option enables the DCE to accept anexternal clock signal. There are two options:

True - Accepts DTE’s clock signal

False - The DCE uses it’s own clock, normal operation.

10.7.2.6 106 CLAMP


True - Clamps the CTS circuit to ON

False - CTS follows RTS

10.7.2.7 LOCAL LOOP

Setting this to True means that the data received by the interface is transmitted back out of the interface.Setting this to False turns off the loop.

10.7.2.8 LOOP BACK

Setting this to True means that the data received at the interface from the dsl line is looped back down thedsl line.. Setting this to False turns off the loop

Local:LoopBack=

True

RETURN

False

Local:LocLoop=

True

RETURN

False

Local:106Clamp=

True

RETURN

False

Local:EnDteClk=

True

RETURN

False


113

10

10.7.2.9 LINE TRAP

Setting this to True ensures that trap messages will be sent should the interface become unavailable. Settingthis to False turns off the trap..

10.7.2.10 SIGNAL LOSS


True - The loss of the incoming clock signal will be reported as a trap.

False - The loss of the incoming clock signal is not reported.

10.7.2.11 CLOCK OUT OF RANGE


True - Reports that the incoming clock signal is out of range.

False - Is not reported.

Local:ClkOOREn=

True

RETURN

False

Local:SigLosEn=

True

RETURN

False

Local:LtrapEn=

True

RETURN

False


114

10.8 SYSTEM MENU

The System menu allows you to either restart the unit, save the current configuration or restore from a savedconfiguration.


10.8.1 RESTART

The AM200 can be restarted using the last saved ‘normal’ configuration. Select the confirm option to restartthe unit. If confirm is selected, the message ‘rebooting’ will appear on the bottom of the LCD.

10.8.2 CONFIGURE

Selecting the ‘config’ option from the ‘system’ menu opens the sub-menu shown below. You can now eitherselect the ‘restore’ or ‘save’ options

10.8.2.1 SAVE

Selecting the ‘save’ option from the ‘config’ sub-menu opens the sub-menu shown below. You can noweither save the current configuration into either the Normal or Backup file names.

Selecting the ‘normal’ option will display the following sub-menu. To save the current configuration select the‘Confirm’ option. ‘Saving’ will then appear on the LCD, followed by ‘Done’ If the AM200 failed to save theconfiguration then ‘Failed’ will be displayed. Alternatively the current configuration could also be saved inthe backup location

Config:Save:

Normal

RETURN

Backup

System:Config:

Save

RETURN

Restore

System:Restart:

Confirm

RETURN

System:

Restart

RETURN

Config


115

10

10.8.2,2 RESTORE

Selecting the ‘restore’ option from the ‘config’ sub-menu opens the sub-menu shown below. You can nowrestore the AM20 to the last save ‘normal’ or ‘backup’ configurations or to the ‘factory default’ settings.

If’confirm’ is selected, the message ‘ Restoring’ will appear on the LCD. The display will then revert to the topof the system menu.

Config:Restore:

Normal

RETURN

Backup

Factory

Save:Normal

Confirm

RETURN


116

11 COMMISSIONING

Once the equipment is correctly installed it may be necessary to monitor the quality of service before puttinglive traffic on the circuit.

The performance of the AM200 can be monitored locally via a VT100 connected to the terminal port.Alternatively the performance of the AM200 can be monitored remotely via the Web Browser.

11.1 PERFORMANCE VIA WEB BROWSER

To view the performance of the unit select the Performance menu. From the subsequent sub-menu the Usercan view the performance of either the DSL line or the DS1 G703 connection.

11.1.1 DSL

The DSL screen (Figure 66) displays the current performance information of the DSL line connection. It alsoshows the performance for the line over the last 15 minutes and the last 24 hours.

Figure 66 Transmission Line Performance screen


117

11

11.1.2 DS1

The DS1 screen (Figure 67) displays the performance information of the DS1 E1/G703 User Port connection.The performance for the connection is displayed over the last 15 minute and over the last 24 hours. The24hour information is split into Totalised Performance and performance over the last 24 hours in 15 intervals

Select the ‘view these entries’ button to display the detailed information. Figure 68 shows an example of theperformance information screen.

Figure 67 DS1 Performance screen

Figure 68 DS1 Far End Performance screen


118

12 OPERATION & MAINTENANCE

12.1 INTERNAL LINKS & FUSES

FS601 FS602 are 1.25A PCB soldered surge resistant time lag fuses

12.1.1 AC variants

Fuse FS801 is a 500mA PCB soldered slow blow fuse.

No internal links

12.1.2 DC variants

Fuse FS802 is a 500mA PCB soldered slow blow fuse.

12.1.3 G703 User Port

FS401 FS402 are 1.25A PCB soldered surge resistant time lag fuses

Front Panel

FS801

FS802

LineConnector

10/100BaseTConnector

TermConnector

FS602

FS601

FS401

FS402


119

13

13 SPECIFICATION

13.1 AM200 DIMENSIONS

The overall dimensions of the unit are:

Height = 42mm

Width = 220mm

Depth = 216mm

13.2 TRANSMISSION PERFORMANCE

13.2.1 End To End Delay

The transit delay from one end of the system to the other is <1mS

13.2.2 Jitter

To G.823

13.2.3 Transmission Range

Noise Free Range on 0.4mm Wire

Noise Free Range on 0.5mm Wire

LINE

SPEED

NOISE FREE

RANGE km

ATTENUATION

dB

2304kbps 4.29Km 44.5dB @300 kHz

2048kbps 5.2Km 55.1dB @300 kHz

1024kbps 7.4Km 58.8dB @150 kHz

512kbps 8.6Km 60.9dB @100 kHz

256kbps 9.4Km 58.2dB @50 kHz

192kbps 10.35Km 64.1dB @50 kHz

LINE

SPEED

NOISE FREE

RANGE km

ATTENUATION

dB

2304kbps 3.9Km 41.6dB @300 kHz

2048kbps 4.4Km 55.5dB @300 kHz

1024kbps 5.6Km 59.2dB @150 kHz

512kbps 6.2Km 61.3dB @100 kHz

256kbps 6.8Km 58.8dB @50 kHz

192kbps 7.5Km 64.8dB @50 kHz


120

13.3 AC POWER INLET

AC power is fed via a standard 3-pin 250V 2.5A IEC/EN 60320-1/C6 socket. A single pole rocker switch nextto the power socket is used to switch the AM200 On/Off. A power cord fitted with a country specific mainsplug is supplied with the unit. This should be plugged into a suitable power supply with earth protection toprovide ESD protection for the unit

13.4 DC POWER INLET

DC power is fed in via the three-pin socket on the rear panel. The cable assembly is shown in Figure 70.

A connection from CGND to earth is required for ESD protection of the unit.

If the unit is line powered, the ground connection must be made to the earth bonding point on the rear panel.(M3 screw)

Mating connector

Molex Minifit Junior Receptacle Molex Part Number: 39-01-4031

Molex female contact Molex Part Number: 39-00-0039

1

2

-48V

0V

3 CGND

WHITE

RED

BLACK2 13

I0


121

13

13.5 DC POWER CABLE

The DC Power Cable can be ordered from ATL, ATL Part Number 6/910/000/423 (See ACCESSORIES)

Figure 70 DC Mains Cable

13.6 COPPER TRANSMISSION LINE

The line interface connector on the AM200 is an 8-way RJ45 socket

The line cable supplied is a standard 3 metre screened Category 5 cable with an 8-way RJ45 plug on eachend.

1 Line 1A

2 Line 1B

3 n.c.

4 Line 2A

5 Line 2B

6 n.c.

7 n.c.

8 n.c.

1 2 3 4 5 6 7 8

Stripped &Tinned3,000mm

Pin1

WhiteRedBlack


122

13.7 TERMINAL CONNECTION

A VT100 compatible terminal can be plugged into the 9-way D-type connector on the front panel.

The socket is wired to allow a straight connection to a PC serial port. The serial port must have pins 2, 3, 4,5 and 6 connected.

The serial port setting is 19200 baud, 8 bits, no parity, 1 stop bit and Xon/Xoff flow control.

The RS232C interface complies with the CCITT V24/V28 standards. The maximum length of cable betweencommunicating devices is limited to 15.2 metres (50 feet).

Pin # Function

1

2 Receive cct. 104

3 Transmit cct. 103

4 DTR

5 Ground cct. 102

6 DSR


123

13

13.8 INTERFACE CONNECTION

13.8.1 Ethernet Port

The Ethernet port is a 10/100BaseT and the connector is an 8-way RJ45 socket, the pin-out is shown below.

When connecting the Ethernet port directly to a PC, a crossover cable is required.

1 TX+

2 TX-

3 Rx+

4 n.c.

5 n.c.

6 Rx-

7 n.c.

8 n.c.

1 2 3 4 5 6 7 8


124

13.8.2 G703

13.8.2.1 G703 75 Ohm

Two BNC connectors are used on the back of the unit to give the 75-ohm connection

13.8.2.2 G703 120 Ohm

The G703 120 Ohm connector on the AM200 is an 8-way RJ45 socket

1 TxA

2 TxB

3 screen

4 RxA

5 RxB

6 screen

7 n.c.

8 n.c.

1 2 3 4 5 6 7 8

TX RXG703


125

13

13.8.3 RS530 DCE

The RS530 DCE connection is supplied via the 25 way female D Type connector on the rear of the AM200.

RS530 DCE Pin Out Name CCT

1 Shield 101

2 Transmitted Data A 103

3 Received Data A 104

4 Request To Send A 105

5 Clear To Send A 106

6 Data Set Ready A 107

7 Ground 102

8 Data Carrier Detect A 109

9 Received Clock B 115

10 Data Carrier Detect B 109

11 External Transmitter Timing B 113

12 Transmitted Clock B 114

13 Clear To Send B 106

14 Transmitted Data B 103

15 Transmitted Clock A 114

16 Received Data B 104

17 Received Clock A 115

18 Local Loopback 141

19 Request To Send B 105

20 Data Terminal Ready A 108

21 Remote Loopback 140

22 Data Set Ready B 107

23 Data Terminal Ready B 108

24 External Transmitter Timing A 113

25 Test Mode 142

RS530/V35/X21


126

13.8.4 RS530 DTE

The RS530 DTE connection on the AM200 is supplied via a 25way male D type to a 25way male D typeConverter cable. The cable plugs into the RS530 connector on the back of the AM200.

25 Way D Type Pin

Out

Name CCT 25 Way D Type Pin

Out

1 Shield 101 1

2 Transmitted Data A 103 3

3 Received Data A 104 2

4 Request To Send A 105 5

5 Clear To Send A 106 4

6 Data Set Ready A 107 20

7 Ground 102 7

8 Data Carrier Detect A 109 8

9 Received Clock B 115 11

10 Data Carrier Detect B 109 10

11 External Transmitter Timing B 113 9

12 Transmitted Clock B 114 12

13 Clear To Send B 106 19

14 Transmitted Data B 103 16

15 Transmitted Clock A 114 15

16 Received Data B 104 14

17 Received Clock A 115 24

18 Local Loopback 141 18

19 Request To Send B 105 13

20 Data Terminal Ready A 108 6

21 Remote Loopback 140 25

22 Data Set Ready B 107 23

23 Data Terminal Ready B 108 22

24 External Transmitter Timing A 113 17

25 Test Mode 142 21

25 way Male D-Type

Pin 1

25 way Male D-Type

Pin 1


127

13

13.8.5 V35 DCE

The V35 DCE connection on the AM200 is supplied via a 25way male D type to 34 way female MRACConverter cable. The cable plugs into the RS530 connector on the back of the AM200.

25 Way D Type Pin

Out

Name CCT MRAC 34 Way Pin

Out

1 Shield 101 A

2 Transmitted Data A 103 P

3 Received Data A 104 R

4 Request To Send A 105 C

5 Clear To Send A 106 D

6 Data Set Ready A 107 E

7 Ground 102 B

8 Data Carrier Detect A 109 F

9 Received Clock B 115 X


11 External Transmitter Timing B 113 W

12 Transmitted Clock B 114 AA


14 Transmitted Data B 103 S

15 Transmitted Clock A 114 Y

16 Received Data B 104 T

17 Received Clock A 115 V

18 Local Loopback 141 L


20 Data Terminal Ready A 108 H

21 Remote Loopback 140 N



24 External Transmitter Timing A 113 U

25 Test Mode 142 NN

25 way Male D-Type

Pin 1

34 way female MRAC


128

13.8.6 V35 DTE

The V35 DTE connection on the AM200 is supplied via a 25way male D type to 34 way male MRAC Convertercable. The cable plugs into the RS530 connector on the back of the AM200.

25 Way D Type Pin

Out

Name CCT MRAC 34 Way Pin

Out

1 Shield 101 A

2 Transmitted Data A 103 R

3 Received Data A 104 P

4 Request To Send A 105 D

5 Clear To Send A 106 C

6 Data Set Ready A 107 H

7 Ground 102 B

8 Data Carrier Detect A 109 F

9 Received Clock B 115 W


11 External Transmitter Timing B 113 X

12 Transmitted Clock B 114 AA


14 Transmitted Data B 103 T

15 Transmitted Clock A 114 Y

16 Received Data B 104 S

17 Received Clock A 115 U

18 Local Loopback 141 L


20 Data Terminal Ready A 108 E

21 Remote Loopback 140 NN



24 External Transmitter Timing A 113 V

25 Test Mode 142 N

25 way Male D-Type

Pin 1

34 way Male MRAC


129

13

13.8.7 X21 DCE

The X21DCE connection on the AM200 is supplied via a 25way male D Type to 15Way female D TypeConverter Cable. The cable plugs into the RS530 connector on the back of the AM200.

25 Way D Type Pin

Out

Name CCT 15 Way D Type Pin

Out

1 Shield 101 1



4 Request To Send A 105 3

5 Clear To Send A 106


7 Ground 102 8












19 Request To Send B 105 10






25 Test Mode 142

25 way Male D-Type

Pin 1 Pin 1

15 way Female D-Type


130

13.8.8 X21 DTE

The X21DTE connection on the AM200 is supplied via a 25way male D Type to 15Way male D Type ConverterCable. The cable plugs into the RS530 on the back of the AM200.

25 Way D Type Pin Out Name CCT15 Way D Type Pin

Out

1 Shield 101 1



4 Request To Send A 105

5 Clear To Send A 106 3


7 Ground 102 8






13 Clear To Send B 106 10












25 Test Mode 142

25 way Male D-Type

Pin 1

15 way Male D-Type

Pin 1


131

13

13.9 MOUNTING BRACKET

A mounting bracket can be provided (optional) so that the unit can be attached to a wall. Before the AM200can be fitted to the mounting bracket the front two feet must be removed from the base of the modem.Bracket dimensions and drilled hole location information is shown below

140mm


132

13.10 ENVIRONMENTAL

13.10.1 Transportation

ETS 300 019-1-2 Class 2.3

Transportation using normal public transport when stored in it's normal transport packaging.

Temp range -40 to +70 OC

Humidity +5 to +95% (non condensing)

13.10.2 Storage

ETS 300 019-1-1 Class 1.1

Storage in a totally weatherproof and partially temperature controlled environment in its standard packaging.


Humidity 95% @ 45 OC (non condensing)

13.10.3 Operational

ETS 300 019-1-3 Class 3.2

Operation in a totally weatherproof and partially temperature controlled environment.


Humidity +5 to +90% (non condensing)


133

14

14 SYSTEM OVERVIEW

14.1 COPPER TRANSMISSION

Figure 71 System Block Diagram

The copper system is intended for operation on 2-wire local telephone network circuits, such as those meetingBT EPS-9. It will operate satisfactorily on unloaded lines having a wide range of characteristics; bridge tapscan be tolerated, dependent upon their characteristics. Although, the system requires a baseband circuit, acontinuous loop at DC is not required. The system can transmit data at user port rates between 64k and 2.3Mon a single pair.

For the copper system, echo cancellation is used to eliminate the unwanted reflections of the transmittedsignal from the receiver input.

The line is connected to the transmission circuit via a line transformer, which acts as a balun and providesisolation; there is surge protection across the transformer line connections. The transmission circuit utilises acustom IC and a number of proprietary components to perform the signal processing described above.

14.2 DSL TRANSMISSION FRAME

The transmission system operates in a bit pump mode. The DSL frame is sent over this 'data pipe'. The DSLframe contains the following

· Sync word· Stuff bits· Stuff control bits· EOC channel· Customer data

10/100 BaseT

AC or DCPower

Nx64

G703

DSL Line

RS-232

Framer

Multiplexer

HDLCMicro

Processor

Sta

tus

LED

sLC

DB

utto

ns

Console

Bridge / Router


134

The nominal DSL frame is always 6ms long, regardless of the transmission rate of the individual channels.

The DSL frame length is adjusted slightly by the use of stuff bits. There may be 4 stuff bits or 2 stuff bits perframe. The stuff bits are used to adjust the effective payload bandwidth of the DSL frame.

If the user rate clock is slightly quicker than the line rate clock then less stuff bits are sent. Alternatively, if theuser rate clock is slightly slower than the line rate clock then more stuff bits are sent. This mechanism allowsthe line rate bandwidth to be adjusted to match the user rate bandwidth.

At the receive end, the rate at which the stuff bits arrive is used to recover the user clock.

G.SHDSL uses Trellis Coded Pulse Amplitude Modulation (TC-PAM). TC-PAM was chosen as the basis forG.SHDSL due to the low complexity of the algorithms and the low latency required for voice traffic. The useof TC-PAM provides an additional 'coding gain' that improves the performance of the digital signal in thepresence of interference. Compared to SDSL (2B1Q, or CAP), TC-PAM is more spectrally friendly, ensuringcompatibility with other DSL-based services such as ADSL.

14.3 CONTROL CIRCUIT

The control circuit is based on a micro-controller and determines the operational status of the unit accordingto the state of the transmission system, the data interface and the configuration information received fromthe terminal.


135

15

15 COMPLIANCE NOTES

The TTE network statements and the declaration of conformity statement to EC directive 1999/5/EC areprovided inside the front cover of the AM200 User Guide together with safety information.

15.1 TELECOMMUNICATION STANDARDS

The equipment is in conformity with the following International/National Standards.

ITU-TK20 Resistibility of Telecommunication Switching Equipment To Over Voltage and

Over Current.

ITU-TK21 Resistibility of Subscriber's Terminal Equipment To Over Voltage and Over

Current.

ETSI EN300386 V1.2.1 EMC Requirements for Telecommunication Network Equipment

EN60950-1: 2002 Information Technology Equipment - Safety

G.703 Physical/Electrical Characteristics of Hierarchical Digital Interfaces.

G.704 Synchronous Frame Structures Used At 1544, 6312, 2048, 8448 and 44737

Kbits/s Hierarchical Levels.

G.706 Frame Alignment And Cyclic Redundancy Check (Crc) Procedures Relating To

Basic Frame Structures Defined In Recommendation G.704.

G.821 Error performance of an international digital connection operating at a bit rate

below the primary rate and forming part of an integrated services digital network.

G.823 The control of jitter and wander within digital networks, based on the 2048kbit/s hierarchy.

G.991.2 Single-Pair Highspeed Digital Subscriber Line (SHDSL) Transceivers.

G.994.1 Handshake Procedures for Digital Subscriber Line (DSL) Transceivers.

V.11 Electrical characteristics for balanced double-current interchange circuits operating at data signalling rates up to 10 Mbit/s.

V.35 Data transmission at 48 kbit/s using 60-108 kHz group band circuits

X.24 List of definitions for interchange circuits between Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE) on public data networks


136

16 ORDERING INFORMATION

KEY

16.1 USER INTERFACES

10/100BaseT X = 0

10/100BaseT + G703 120 Ohms X = 1

10/100BaseT + G703 75 Ohms X = 2

10/100BaseT + N*64 X = 4

16.2 AM200 DESKTOP UNITS, NON LCD

AM200AE DSL, AC power 1/360/01X

AM200AE DSL, DC power, power feed 1/360/02X

AM200AE DSL, DC power, wetting current 1/360/04X

16.3 AM200 DESKTOP UNITS, WITH LCD

AM200ALE DSL, AC power 1/360/41X

AM200ALE DSL, DC power, power feed 1/360/42X

AM200ALE DSL, DC power, wetting current 1/360/44X

Example Order Code

1/360/011 AM200E (non LCD), mains powered, User Interface 10/100BaseT + G703 120 Ohms

16.4 SPECIAL AM200 VARIANTS

AM200AEVG1 DSL, AC power, with 10/100BaseT, V35 & G703 120 Ohms Interfaces 1/360/015

AM200AEXG7 DSL, AC power, with 10/100BaseT, X21 & G703 57 Ohms Interfaces 1/360/01A

16.5 ACCESSORIES

Description Order NumberRS530 DTE Converter cable 6/910/000/539

X21 DCE Converter Cable 6/910/000/534

X21 DTE Converter Cable 6/910/000/538

V35 DCE Converter cable 6/910/000/533

V35 DTE Converter cable 6/910/000/537

AM200 DC Power Cable 6/910/000/423

AM200 AC UK Power Cable 6/910/000/531

AM200 AC Euro Power Cable 6/910/000/532

AM200 RJ45-RJ45 Cable 6/910/000/425

AM200 RS232 Cable 6/910/000/429

Mounting Bracket 8/360/000/001


137

17

17 F.A.Q.s

Please check the following points if problems are experienced setting up a DSL link:

It is recommended that a pair of units be set up back-to-back and are working correctly in the desiredoperational mode before deployment.

The units will not get into sync

1. Check that one AM200 is set to CO and the other(s) to CPE.

2. Ensure the modem is being used on unconditioned twisted pairs.

3. Check the correct pin connections are being used on the RJ45 line connector.

4. Check that the transmission distance is not beyond the range of the equipment.

5. If using an adapter to connect to a BT EPS8/9 line, check that the colour is grey for the AM200.

Where can I get a Terminal Emulator program?

Most versions of Windows running on a PC come with a VT100 terminal emulator, such as HyperTerminal.TeraTerm is the recommended VT100 terminal emulator. This can be downloaded from the ATL web site athttp://www.atltelecom.com/support

When I plug in the Terminal Emulator I get strange characters on the screen.

The bit rate of the serial port is probably set to the wrong speed. The default bit rate for the AM200management serial port is 19200 baud. Go to the terminal emulator serial port configuration menu and setthe serial port to 19200 baud, 8 bits, no parity, Xon/Xoff flow control.

When using the management terminal, the function keys do not work.

Most PC based terminal emulators allow the programming of the function keys. If you follow the installationof TeraTerm the function keys will be set up for you.


138

18 Appendix 1 Glossary

10BaseT Connection to Ethernet using twisted pair cable and RJ-45 connectors. At 10 Mbps,the recommended limit on segment length is 100m.

100BaseT Name for Fast Ethernet family of standards using twisted pair cable for transmissionat 100Mbps.

802.2 See IEEE 802.2

802.3 See IEEE 802.3

Access List In a router, a list of which addresses are allowed access to which services. An accesslist is used to control traffic both to and from the router.

Address Mapping The translation of addresses from one protocol's format to another, so thatequipment using different protocols can work together.

Address Resolution Any means of overcoming the difference between two different address systems ona network. In particular, a means of mapping addressed at the Network Layer in theOSI model to addresses in the Data-Link Layer.

Agent A component of network and desktop management software, such as SNMP, thatgathers information from the MIB.

Analogue Analogue transmission is achieved by adding signals of varying frequency oramplitude to carrier signals of a given frequency. A modem is used to convert digitalinformation to analogue signals for transmission over leased lines and to convertanalogue phone signals to digital information.

ARP Address Resolution Protocol, used to resolve IP addresses into physical networkaddresses. IP hosts use this protocol when they know the IP address of a host but notit's physical (Ethernet) address. ARP is defined in RFC-826

ATM Asynchronous Transfer Mode. A high-speed cell-switching network technology thathandles data and real-time voice and video. ATM is defined in the Broadband ISDNstandard and provides "bandwidth on demand" by charging customers for theamount of data they send

Baseband Transmission where digital signals are placed onto the transmission line with nochange in their modulation and using the full channel bandwidth. Baseband circuitsare usually provided by network operators via leased lines.

Baud Unit of signalling speed. The speed in baud is the number of line changes (infrequency, amplitude etc) or events per second. At low speeds, each event representsonly one bit condition and baud rate equals bps. As speed increases, each eventrepresents more than on bit and baud rate does not truly equal bps.

BER (Bit Error Rate) A ratio of the number of errors received on a digital circuit.


139

18

BERT Bit Error Rate Tester

Bridge A device that connects and passes packets between two network segments that usethe same communications protocol. A bridge operates at the Data Link layer of theOSI reference model. In general, a bridge will filter, forward, or flood an incomingframe based on its MAC address.

Broadband Generally refers to a transmission bandwidth capable of carrying more than a singlevoice-grade channel (4kHz). Multiple channels of data can be transmitted over asingle communications medium by multiplexing the signals.

CCITT Consultative Committee for International Telegraph and Telephony. Replaced by theITU-T Standardisation Sector.

CD Carrier Detect A signal that indicates when a carrier frequency has been sensed onthe line. It shows that a connection has been made. Also called RLSD (Received LineSignal Detector) and DCD (Data Carrier Detect)

CE A certification that products must attain in order to be sold in the European Union,which involves complying with a number of different EU standards including lowEMI/RFI emissions, strong resistance to EMI/RFI, and electrical safety.

CHAP Challenge Handshake Authentication Protocol

CO (Central Office) Term for a telephone exchange where circuits are terminated andtraffic is switched.

CPE (Customer Premises Equipment) Telecommunications terminating equipment such astelephones, modems or terminals installed at the customers premises for theconnection to telephone or data networks.

CRC (Cyclic Redundancy Check) A data transmission error detection system where thedata is read, a CRC character is calculated and appended to the data. On receipt ofthe data the calculation is repeated and compared with the original CRC character.

CSMA/CD (Carrier Sense Multiple Access/Collision Detection) A data link layer networkingtechnology providing access and managing collisions of data in Ethernet. Devicesconnected to the LAN listen and only transmit when the line is free. If a collisionoccurs the packet is re-transmitted after a random timeout.

Datagram A quantity of data that is sent, received, and routed as a unit.

Data Packet One frame that contains information in a packet-switched system.

DCE (Data Communications Equipment.) A Device that provides the functions requiredestablishing, maintaining and terminating a data transmission connection.

DHCP (Dynamic Host Configuration Protocol) A protocol used to dynamically assign IPaddresses to clients. Its purpose is to overcome the shortage of IP addresses in Ipv4,by sharing a set of addresses on a timeshare basis.


140

Digital Loopback A technique for testing the digital processing circuitry of a communications devicethat can be initiated locally or remotely via a telecommunications circuit.

DSL Digital Subscriber Line

DSX-1 The NTU interface in the UK to which an E1 line is attached.

DTE (Data Terminal Equipment.) Device acting as data source. Compare with DCE

DTR (Data Terminal Ready) An interface signal between a DTE and a DCE to confirm thatthe DTE is ready to send and receive signals.

Dynamic routes These are routes that are learned via a routing protocol such as RIP. They aremaintained automatically. Commands that make changes to dynamic routes areusually effective only temporarily because the same route will be learned again fromthe other routers in the network.

E1 The European standard for high-speed digital transmission at 2.048Mbps, with 3164Kbits channels available to traffic.

E3 A European digital transmission method with speeds of 34.368Mbps.

ELAN (Emulated Local Area Network) In ATM applications, a client-server model can beused to simulate an Ethernet or Token Ring LAN and function as a logical network.You can have several ELANs on one ATM network.

EMC (Electro Magnetic Compatibility) A set of standards aimed at limiting electromagneticemissions from equipment and providing an adequate level of immunity frominterference.

EMI (Electro Magnetic Interference) Electromagnetic radiation leakage outside atransmission medium. It varies with frequency and power. In severe circumstances itcan effect other equipment, transmission media and even humans. Internationalregulatory organizations set limits for the levels of emissions.

Error Correction Techniques used to correct errors, which arise during the transmission of data. Errorcorrection is based on algorithms which include extra information with the data toenable the error to be located and corrected, or just a simple request for re-transmission.

Ethernet A type of LAN invented by the Xerox Corporation at the Palo Alto Research Centre.Ethernet 802.2 Ethernet 802.3 Ethernet II Ethernet SNAP. These are different formatsused to encapsulate the data.

Ethernet II An Ethernet frame format defined by the IEEE. Ethernet II frames are usuallyassociated with the TCP/IP protocol.

Ethernet Address A unique 48bit number maintained by the IEEE/ISO and assigned to each Ethernetnetwork adaptor

ETSI European Telecommunications Standardisation


141

18

Frame Relay A high-speed packet-switching protocol used in wide area networks (WANs). FrameRelay provides for a granular service up to DS1 rates

G.703 Refers to the ITU-T Recommendation for physical and electrical characteristics ofhierarchical digital interfaces. The general standard for interfacing to digital high-speed circuits.

G.704 ITU-T Recommendation applies to the frame structure of a 1.544-Mbps and 2.048-Mbps. G.703 digital link using multiple 64-kbps time slots as individual sub-channels.

G.SHDSL This is a worldwide standard aimed at users of DSL for voice, data and Internet accessservices and is currently determined by ITU-T recommendation G.991.2. G.SHDSL isa symmetrical high-speed digital subscriber line technology. It is rate adaptive andspectrally friendly with other DSL systems such as ADSL. It supports data rates from192kbps to 2.3 Mbps at greater distances than many other technologies.

Handshaking Exchange of predetermined signals between two devices establishing a connection.Usually part of a communications protocol.

HDSL High bit rate Digital Subscriber Line

HTML Hypertext Markup Language

HTTP Hypertext Transfer Protocol

Hub A central connecting device that joins communication lines together in a starconfiguration.

Hz (Hertz) A unit of frequency. One hertz equals one cycle per second.

ICMP (Internet Control Message Protocol) This is an adjunct to IP, and provides the abilityto exchange error and control messages between local and remote hosts or routers

IEEE Institute of Electrical and Electronics Engineers

IEEE 802.2 IEEE LAN protocol specifying an implementation of the LLC sub layer of the Data-LinkLayer. It handles errors, framing, flow control, and the Network Layer (Layer 3) serviceinterface. This protocol is used in IEEE 802.3 and 802.5 LANs.

IEEE 802.3 This is a standard specification for Ethernet, a method of physical communication ina local area network (LAN), which is maintained by the Institute of Electrical andElectronics Engineers (IEEE). In general, 802.3 specifies the physical media and theworking characteristics of Ethernet.

IP (Internet Protocol) This is a standard protocol widely used for internetworking. IPmessages carry data from an originating computer to a destination computer,possibly passing though routers. The term "IP" is often used to refer to the collectionof protocols usually used with IP itself. Some of these are ICMP, ARP, RIP, SNMP, TCP,TELNET and UDP. IP is defined in RFC-791.


142

IP Address The IP address comprises 32 bits and is considered to have 2 parts, called the networknumber and the host number. IP addresses are written as 4 decimal numbersseparated by dots, with each number having a value between 0 and 255 to represent8 bits of the address.

IPX (Internetwork Packet exchange) A standard protocol devised by Novell. The term"IPX" is often used to refer to the family of protocols usually found on Novellnetworks. These include RIP, SAP and SPX.

ISP (Internet Service Provider) A vendor who provides direct access to the Internet.

ITU-T International Telecommunications Union - Telecommunications

LAN (Local Area Network) A network operating over short distances, usually at highspeed.

LCP (Link Control Protocol) One of the several protocols negotiated over a PPP link. It isalways the first to be negotiated and is and indication of the state of the link. Whenthe state reaches Opened then it is ready for use by other protocols e.g. IP, IPX.

Leased Line Private Circuits leased from a network operator usually as a 2 wire (1 pair) or 4 wire(2 pair) copper link. In the UK EPS8 is the standard for a 4-wire baseband circuit andEPS9 is the standard for a 2-wire baseband circuit.

Loading The addition of inductance to a pair of wires or line used for transmission of voicefrequency signals to minimize amplitude distortion and improve voice quality -prevents DSL baseband transmission from working.

Loopback Diagnostic test in which the transmitted signal is returned to the sending device afterpassing through all or part of a data communications link or network. A loopback testcompares the returned signal with the transmitted signal.

MAC Media Access Control. The lower portion of the data link layer, it is the interfacebetween the station and the network. The MAC differs for various physical media.

MAC address The hardware address of a device connected to a shared network medium.

MIB (Management Information Base) A database that a device keeps about itself and fromwhich it provides information to management software such as SNMP.

Modem Taken from the term "modulator-demodulator". A modem converts digital signalsfrom a computer or other digital device to analogue signals for a copper twisted pairtelephone line and demodulates the incoming analogue signal to convert it to adigital signal for the digital device.

Modulation Altering the amplitude, frequency or phase of a carrier signal to transmit information.The method used to transmit AM (amplitude modulation) radio, the voice or musicinformation is transmitted by modulating the amplitude of a carrier signal with theelectrical signal representing the voice or music This carrier signal is the frequency ofthe radio station.


143

18

Multiplexer (Mux) A device that enable two or more signals to simultaneously share a singletransmission path. There are many methods of multiplexing information onto atransmission path such as "Time Division" and "Frequency Division" Multiplexing.

NAT (Network Address Translation) Mechanism for reducing the need for global uniqueindividual IP addresses.

Node A point of interconnection to a network

NTE Network Termination Equipment

NTU Network Termination Unit

Packet A group of bits (including data and call control signals) transmitted as a whole on apacket-switching network.

Packet Switching A data transmission technology, which frames information into, separate packets andtransmits them independently across the network for re-assembly.

PAP (Password Authentication Protocol) The most basic form of authentication, in whicha user's name and password are transmitted over a network and compared to a tableof name-password pairs.

PBX (Private Branch Exchange) An exchange system used in companies and organisationsto handle internal and external calls.

PCM (Pulse Code Modulation) A technique for converting an analogue signal, such asvoice, into a digital bit stream for transmission. The common method samples theanalogue signal at a rate of 8kHz. Each sample is then digitized as an 8 bit codedword.

PDH (Plesiochronous Digital Hierarchy) This is an older transmission standard defined byITU-T G.702, where transmission rates are independent but kept within a closelydefined range. PDH systems are still widely used for access into the backbonenetwork.

PING (Packet InterNet Groper) This is a facility used for testing. It involves sending a testmessage (using ICMP) and using the response, if any, to diagnose any possibleproblems.

PPP (Point to Point protocol) A data-link protocol that provides dialup access over seriallines by encapsulating protocols in specialized Network Control Protocol packets.These packets can be used to replace a network adapter driver, which allows remoteusers can log on to the network as if they were in-house.

PRI (Primary Rate Interface) An ISDN service that provides 31 64kbps B and 1 D channels(31B+D), which is equivalent to the channels of an E1 line

PRBS (Pseudo Random Bit Sequence) A sequence of bits with a random pattern of bits,which repeats after a number of bits.


144

Protocol A formal set of conventions governing the formatting and relative timing of messageexchange between two communicating systems.

QoS (Quality of Service) In traditional analogue systems the quality of the voice. In digitalsystems, especially ATM, it is a set of parameters, which determine the performanceof a virtual circuit carrying voice, data and video.

Repeater A communications device that amplifies or regenerates the data signal in order toextend the transmission distance.

RIP (Routing Information Protocol) This is the name for two related, but different,protocols. One is used with IP and the other with IPX. Both are used to exchangerouting information with other routers. The IP version of RIP is defined in RFC-1058.

Router A Network layer device that stores and forwards data packets from one local areanetwork (LAN) or wide area network (WAN) to another using their network layerinformation (IP addresses).

Routing The process that selects the most efficient path through a network for a message

SDSL Symmetrical Digital Subscriber Line

SNAP (Subnetwork Attachment Point) Part of the IEEE LLC/SNAP header used to identifypacket type.

SNMP Simple Network Management Protocol

Spanning tree A technique that detects loops in a network and logically blocks the redundant paths,ensuring that only one route exists between any two LANs; used in an IEEE 802.1dbridged network.

Static routes These are routes that have been permanently entered into a routing table. Staticroutes are only affected by the relevant commands - they do not changeautomatically.

Subnet This is a subdivision of an IP network. Subnetting is used to conserve the number ofIP network numbers required and to simplify routing. Subnets simply use a morespecific address mask than normal for the address class.

Synchronous Transmission Transmission in which data bits are sent at a fixed rate with the transmitter andreceiver synchronised.

SYSLOG A method of collecting together message logs from many systems. Each system sendsshort text messages to a syslog recorder.

TCP (Transmission Control Protocol) TCP provides transport level connections betweenhosts. It is designed to provide a reliable connection and handles error detection, lostpackets and packets that arrive out of sequence. It is also called "TCP/IP" because ituses IP. TELNET uses TCP for its connections. TCP is defined in RFC-793.

TC-PAM (Trellis Coded Pulse Amplitude Modulation) Line code used on G.SHDSL linesdesigned to be spectrally compatible with other transmission technologies deployedin the access network, including other DSL technologies.


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18

TDM (Time Division Multiplexer) A device, which divides the time available on its trunk orcomposite links among its channels.

TELNET Telnet is the TCP/IP standard protocol for remote terminal connection service. Telnetallows a user at one site to interact with a remote host at another site as if the user'sterminal was directly connected to the remote machine.

Twisted Pair Twisted pair is the ordinary copper wire that connects home and many businesscomputers to the telephone company. To reduce potential signal interferencebetween pairs of wires, two insulated copper wires are twisted around each other.

UDP (User Datagram Protocol) UDP is a transport protocol designed to provide aconnectionless mode service. It does not provide the error handling and automaticretransmission of TCP. UDP is defined in RFC-768.

V.11 ITU standard defining electrical characteristics for balanced double currentinterchange circuits in the field of data communications.

V.24 / RS-232 This is a standard method of connecting a low speed serial channel. While V.24 andRS-232 are actually separate standards, the terms are often used interchangeably torefer to the type of serial port, which they describe.

V.35 ITU standard governing data transmission at 48kbps over 60- to 108-kHz group bandcircuits. Has become a general mid- to high-speed interface with speeds up to 2Mbps since its development.

WAN (Wide Area Network) A network that covers a large area, usually at relatively lowspeed.

X.21 ITU standard for a serial Interface between DTE and DCE for synchronous operationon public data networks. Uses V.11 electrical levels.

am200 user guide - atl telecom

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