Verilink AS2000: The Basics (880-502981-001) Product Manual Manual do Utilizador descarregar pdf (Página 7)

Verilink Access System 2000: The Basics

vii

Fan Alarm............................................................................................4-11

Installing the Rear Connector Module...............................................................4-12

Installing the Application Module ..............................................................4-12

TIU Installation ...........................................................................................4-13

TIU Connections .................................................................................4-13

System Power Application and Verification................................................4-14

Applying Multi-line Shelf DC Power....................................................4-14

Applying AC Power to 115 VAC Power Supplies (PAC 2910) ..............4-15

AS2000 Cabling.................................................................................................4-17

Setting the Shelf Address....................................................................4-18

Extending the TABs Node Controller Bus ...........................................4-19

Daisy-Chaining for the NCM .......................................................................4-19

Data Bus Expansion.....................................................................................4-20

Connecting the Rear Connector Modules ...................................................4-20

ASCII Terminal Connection.........................................................................4-20

Monitoring and Troubleshooting

............................................................................5-1

Front Panel LED Indicators............................................................................5-1

Test Equipment...................................................................................................5-1

System Failure.....................................................................................................5-2

Alarms.................................................................................................................5-2

Interpreting Alarms ......................................................................................5-3

Alarm Description.................................................................................5-3

Alarm Classification .............................................................................5-3

Problem Types......................................................................................5-3

What To Do About Alarms ............................................................................5-4

Alarm List......................................................................................................5-4

Configuration Problems......................................................................................5-7

T1 Line Coding and Density Enforcement....................................................5-7

AMI Coding and Pulse Stuffing .............................................................5-7

B8ZS Coding..........................................................................................5-7

Loopbacks and Test Patterns ..............................................................................5-8

Repeater Loopback (RLB) ..............................................................................5-9

Line Loopback (LLB) ......................................................................................5-9

Payload Loopback (PLB) ................................................................................5-9

Equipment Loopback (ELB)............................................................................5-9

Data Port Loopback (DPLB)..........................................................................5-10

Test Patterns...............................................................................................5-10

Performance Monitoring Registers....................................................................5-11

Performance Register Definitions...............................................................5-11

Performance Data Processing .....................................................................5-15

AT&T TR 54016 Performance Data Processing...................................5-15

ANSI TIM1.3 Performance Data Processing.........................................5-15

Verilink Performance Data Processing................................................5-16

Equipment Signal Performance Data Processing ................................5-16

Power Failure.....................................................................................................5-16

DC Power.....................................................................................................5-16

AC Power.....................................................................................................5-17

System Fault Isolation ................................................................................5-19

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Verilink AS2000: The Basics (880-502981-001) Product Manual Manual do Utilizador Página 7

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