Nortel Networks BM450 manual Task List, BCM450 Troubleshooting Guide

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Task List

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Initial Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Hardware Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

To verify the keycodes using Element Manager	24
To verify the keycodes using Telset	25
To restart the system	26
Viewing the POST log file	27
To test the main unit	29
To troubleshoot the main unit	29
To test the expansion unit	29
To troubleshoot the expansion unit	30
Testing an MBM	30
Troubleshooting the FEM	31
To determine why the ATA 2 does not function	31
To determine why there is no dial tone at the ATA2	32
To check the ATA2 wiring	32
To perform a Level 1 reset (configuration reset)	34
To perform a Level 2 reset (software reset)	34

Software Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

To check line programming	38
To restore data from an archive	46
To restore the factory configuration	47
To view the BCM450 software inventory	48
To obtain updates from the Nortel Technical Support Web page	49

Advanced Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Troubleshooting example 1	51
Troubleshooting example 2	53
Troubleshooting example 3a	59
Troubleshooting example 3b	59
Troubleshooting example 4	61
Troubleshooting example 5	62
Troubleshooting example 6	67
Troubleshooting example 7	67

Recovery trees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Downloading Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

To download software from the BCM450 webpage 76

Troubleshooting Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Accessing the CLI through a serial connection	81
Accessing the CLI through the OAM port	81

BCM450 Troubleshooting Guide