Nortel Networks 5399 User Manual
Nortel Networks 5399 Access Switch Hardware Installation Guide
Chapter 4
Troubleshooting Procedures
4-6
Table 4-2. Troubleshooting Guide (continued)
Power-Up Diagnostic Messages
Power-up diagnostics run when the Remote Access Concentrator is
powered up or reset. During the power-up process the following text is
displayed on the service port terminal:
powered up or reset. During the power-up process the following text is
displayed on the service port terminal:
To enter "Monitor Mode" please depress the SPACE key within
10 seconds.
10 seconds.
If you press the space bar within 10 seconds, the following text is
displayed:
displayed:
Monitor Mode selected, please wait for Confidence tests to
complete.
complete.
If you do not press the space bar within the time allotted, the following
text is displayed:
text is displayed:
Defaulting to Normal Boot Mode.
If an error occurs during confidence tests, the following message is
displayed:
displayed:
Fatal Error
Condition
Possible Cause
Corrective Action
Annunciator is off;
other module
annunciators are on;
chassis LEDs are on.
other module
annunciators are on;
chassis LEDs are on.
No power to module
(blown fuse); failed
DC-to-DC converter).
(blown fuse); failed
DC-to-DC converter).
Replace the module.
The Attn and Unit
Module Status
LEDs are amber.
Module Status
LEDs are amber.
The Remote Access
Concentrator did not pass
its diagnostics or is not
working normally.
Concentrator did not pass
its diagnostics or is not
working normally.
Reset the Remote
Access Concentrator.
Access Concentrator.