Avaya Definity SI, Maintenance Manual, Page: 1908 / 2968

Maintenance Object Repair Procedures
555-233-123 10-1122 Issue 4 May 2002
MMI Synchronization Status Test (#1122 and
1123)
This test is non-destructive.
To support applications involving multiple MMI circuit packs, the appropriate MMI
circuit packs must be synchronized with one another. One such circuit pack is
designated as the master sync source, which provides the synchronization signal
onto the TDM bus. The other MMI circuit packs in the system listen to this signal.
This test monitors this synchronization state. The test fails if the MMI circuit pack
is not in sync. The test passes with auxiliary code 1100 if the MMI circuit pack is in
sync and is providing the synchronization signal for the system. The test also
passes with an auxiliary code of 1101 if the MMI circuit pack is in sync and
listening to the sync signal. MMI circuit packs do not lose the synchronization
signal unless an MMI circuit pack is either pulled out of the system or reset by
using a technician command.
Test #1122 runs when the long option of the test board command is entered,
initiating the recovery of synchronization. Test #1123 runs when the short option
of the test board command is entered, giving the status of the synchronization.
You need not necessarily run the long option since synchronization signal
recovery should be taking place within software running in the background. Use
the long option only if synchronization is not established within 5 minutes of
investigating the problem.
2100 ABORT Could not allocate the necessary resources to run this test. This
is an abnormal abort.
1. Retry the command at 1-minute intervals a maximum of 5
times.
FAIL The TSI was found to be transmitting in error, causing noisy and
unreliable connections.
1. Replace the circuit pack.
PASS The TSI is correctly using its allocated time slots.
Table 10-422. TEST #1108 TSI Looparound Test — Continued
Error
Code Test
Result Description/Recommendation
Continued on next page