Verilink AS2000: The Basics (880-502981-001) Product Manual - Manual (Page 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