System And Cpu Alarms - Symmetricom TSG-3800 Series User Manual

Maintenance and Troubleshooting
Troubleshooting Guidelines
Note: Not all messages are errors. The TSG-3800 also reports
changes in operating parameters.

System and CPU Alarms

A system alarm indicates a problem not directly traceable to a specific input, output,
or module. When the System indicator lights, use the Event command to retrieve a
listing of events (as many as needed to trace back to the System alarm). The
System Alarm event causes the following error message.
>09SEP2004 12:45:13 System Bus Failed
When a system alarm occurs, remove and re-install each module one at a time. If
the System indicator turns off after removing a module, replace that module.
Remove and re-install the modules in the following sequence:
1. Unselected Input modules
2. Unselected Frame Generator (use DISABLE command before removing)
3. Unselected Clock (use DISABLE command before removing)
4. Selected Input Reference module
5. Selected Frame Generator (use DISABLE command before removing)
6. Selected Clock (use DISABLE command before removing)
7. CPU module
Note: If possible, contact Symmetricom Global Services before acting
on a CPU alarm to allow for diagnosis.
A CPU alarm indicates a malfunction of the processor. If this alarm occurs, record
the indicator pattern (which indicators are on). To reset the problem, remove, then
re-insert the CPU module. If the problem persists, contact Symmetricom Global
Services. Address and telephone information appears in
Procedure, on page 137.
118 TSG-3800 User's Guide
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12778474-002-2 Revision F – March 2004