Maintenance-Object Repair Procedures
555-233-143
8-1528
Issue 1 May 2002
If Test #148 fails with Error Code 2–32, see
to resolve the problem. If not, continue with the following
steps.
5. Execute the disable synchronization-switch and then the enable
synchronization-switch commands. These two commands (when
executed together) will switch the system synchronization reference
to the primary DS1 Interface circuit pack.
6. Check the Error Log and execute the status synchronization
command to verify that the primary DS1 Interface circuit pack is still
the system synchronization reference.
If the primary DS1 Interface circuit pack is not the system
synchronization reference and the master port network does not
have duplicate Tone-Clock circuit packs, escalate the problem.
Otherwise, continue with the following step.
7. For duplicated Tone-Clock circuit packs in the master port network:
Enter set tone-clock UUC to interchange Tone-Clocks in the
master port network, and repeat the disable/enable commands
described in the previous step.
b. This error indicates that Synchronization Maintenance has been disabled
via the disable synchronization-switch command. Execute the enable
synchronization-switch command to enable Synchronization
Maintenance reference switching and to resolve this alarm.
c. This error indicates a problem with the secondary DS1 reference. It will be
cleared when the secondary reference is restored. Refer to note (a) to
resolve this error substituting secondary for primary in the preceding
resolution steps.
d. This error indicates that the Tone-Clock circuit pack is providing the timing
source for the system. The primary and secondary (if administered) are
not providing a valid timing signal. Investigate errors 1 and 257 to resolve
this error.
e. This error indicates that the external Stratum-3 clock failed to provide the
system’s timing reference. Refer to Stratum-3 clock’s Maintenance
document to resolve the defective synchronization reference.
f. This error indicates excessive switching of system synchronization
references has occurred. When this error occurs, synchronization is
disabled and the Tone-Clock circuit pack (in the master port network)
becomes the synchronization reference for the system. Execute the
following steps to resolve this error:
1. Check for timing loops, and resolve any loops that exist.
2. Test the active Tone-Clock circuit pack in the master port network
via the test Tone-Clock UUC long command.
Check the Error Log for TDM-CLK errors, and verify that TDM bus
Clock Circuit Status Inquiry test (#148) passes.
Summary of Contents for S8700 Series
Page 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Page 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Page 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Page 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Page 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Page 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...