AT&T 3.0 manual Maintenance and Troubleshooting IN-1

Index

#

012 module apparatus codes, 4-5PEC codes, 4-5

100D module

automatic tests, 4-80- 4-81clock status

procedure, 4-84- 4-85summary, 4-83

CSU Loopback Test, 4-71- 4-80error events

procedure, 4-81- 4-83summary, 4-81

restoring, 4-80

408GS/LS-MLX module, 4-36

551T1 connection, 4-74- 4-75

A

Access log

checking, 1-24- 1-25reviewing, 2-18- 2-20

Alarm

checking error logs, 1-23- 1 -24clearing, 1-20

generated by system, 1-19- 1-20Alarm message, 2-3

Analog multiline telephone, 3-4Apparatus codes, 012 modules, 4-5Attendant, dialing, 1-9

Audit procedure

calls, 5-25,5-28– 5-30lines, 5-25- 5-28

Automatic tests, 4-80- 4-81

Auxiliary power unit, replacing, 4-8- 4-9

B

B-channel Ioopback test error messages, table, 4-57procedure, 4-55- 4-56results, 4-56- 4-57summary, 4-54

Behind Switch mode, 1-27- 1-28Board controller test

error messages, table, 4-53procedure, 4-51- 4-52results, 4-53

summary, 4-50Busy-out

extension, 5-13- 5-15overview, 4-37- 4-38procedure, 4-38- 4-40summary, 4-38trunk, 5-11- 5-13

C

Call Forwarding feature, 3-5- 3-6Carrier

removing, 4-85- 4-86replacing, 4-86

types of problems, 4-85

Central office, checking problems, 1-26Circuit module firmware, upgrading

error conditions, 4-66- 4-70procedure, 4-62- 4-66summary, 4-61

overview, 4-60- 4-61Circuit pack, 3-1

Maintenance and Troubleshooting IN–1