Avaya S8700 Maintenance Manual page 2227

STRAT-3 (Stratum-3 Clock)
Table 8-588. TEST #161 Loop-Around Test — Continued
Error Test
Code Result Description / Recommendation
2 FAIL One power supply failed. This error only occurs when the Stratum-3 clock has
two power supplies, and one of them has failed. However, the clock can
function with one power supply.
1. Locate the failed power supply (the one with a red LED), and replace it.
2. To determine whether the alarm still exists, issue the test synchronization
4 FAIL One clock unit failed.
1. Look at the Stratum-3 cabinet for a red LED on a circuit card marked
2. To determine whether the alarm still exists, issue the test synchronization
8 FAIL Reference B failed or CI card B failed. This condition usually indicates a failure
of the DS1 reference; however, there may also be a failure of the CI card to
which the reference is connected. The system technician dispatched to
investigate this problem should take a spare CI card in case the CI card caused
the failure. If you are NOT ON-SITE, use the following procedure:
1. If there were no DS1-BD errors or if every DS1-BD error has been
555-233-143
The power supplies reside under the Stratum-3 clock's carrier.
r 4 command to clear the alarm. If any test repetitions fail, then follow the
procedures for those failures.
''ST3.'' Replace the card.
r 4 command to clear the alarm. If any test repetitions fail, then follow the
procedures for those failures.
resolved, enter test synchronization r 4 to determine whether the alarm is
still present. If every repetition of the test passes, the alarm no longer
exists. Otherwise, the system technician should be dispatched with a
spare CI card to perform the following instructions on-site.
Continued on next page
Issue 1 May 2002 8-1505