Avaya S8700 Maintenance Manual page 2228

Maintenance-Object Repair Procedures
Table 8-588. TEST #161 Loop-Around Test — Continued
Error Test
Code Result Description / Recommendation
8 FAIL If you are ON-SITE, use the following procedure:
(cont'd)
1. Look for a red LED on a CI card B (the CI card on the right). If there is a
2. Otherwise, enter test synchronization r 4 to clear the alarm. If any test
3. Enter display errors and look for DS1-BD errors. If there are any, see
4. After every DS1-BD error has been resolved, determine whether the alarm
5. Check the DS1 reference A connections to the Stratum-3 clock.
6. Determine whether the alarm still exists with test synchronization r 4 to
16 FAIL Every power supply failed.
1. Replace the failed power supplies.
2. If battery backup for the Stratum-3 clock is not supplied or if the battery
32 FAIL Every clock unit failed.
1. Look at the Stratum-3 cabinet for red LEDs on circuit cards marked ''ST3.''
2. To determine whether the alarm still exists, issue the test synchronization
2101 FAIL The TN780 Tone-Clock circuit pack detects loss of signal. See note h of the
STRAT-3 Hardware Error Log Entries table in the STRAT-3 (Stratum-3 Clock)
Maintenance documentation for replacement procedures.
PASS The Stratum-3 clock has reported that it has no alarm conditions. If
synchronization problems have been reported, look for SYNC errors and see
''SYNC (Port-Network Synchronization)''
errors.
8-1506 Issue 1 May 2002
red LED, then replace the CI card, if a spare is available. If no spare CI is
available on-site, proceed to Step 3. If, after replacing the CI card, the red
LED on the new CI card lights, proceed to step 3.
repetitions fail, follow the procedure for those failures.
''DS1-BD (DS1 Interface Circuit
proceed to step 5.
still exists with test synchronization r 4. If any test repetitions fail, follow
procedures for those failures.
clear the alarm. If any test repetitions fail, then follow procedures for those
failures.
backup holdover time has been exceeded, then the system will be
referencing the local oscillator on the active TN780 Tone-Clock circuit pack
until software detects that one or both power supplies have been restored
(approximately 40 minutes). To speed up this restoration, issue the test
synchronization r 4 command. Every test should pass. If any repetitions
should fail, then follow the procedures for those failures. The battery
backup resides under the Stratum-3 clock's carrier.
Replace the card(s).
r 4 command to clear the alarm. If any test repetitions fail, then follow the
procedures for those failures.
Pack)''. If there are no DS1-BD errors,
for recommended strategy for those
Continued on next page
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