User manual

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-1195STRAT-3 (Stratum 3 Clock)]
10
16 FAIL All power supplies failed.
1. Replace the failed power supplies.
2. If battery backup for the Stratum 3 clock is not supplied or if the
battery backup holdover time has been exceeded, the system
references the local oscillator on the Active TN780 Tone-Clock
circuit pack until software detects one or both power supplies
has(have) been restored (approximately 40 minutes). To speed
up this restoration, issue the test synchronization r 4
command. All tests should pass. If any repetitions should fail,
follow the procedures for those failures. If the problem persists
after you have performed this procedure three times, follow
normal escalation procedures.
32 FAIL All clock unit(s) failed.
1. Look at the Stratum 3 cabinet for red LEDs on circuit cards
marked "ST3." Replace the card(s).
2. Determine if the alarm still exists by issuing the test
synchronization r 4 command to clear the alarm. If any test
repetitions fail, follow the procedure for those failures. If the
problem persists after you have performed this procedure three
times, follow normal escalation procedures.
2101 FAIL The TN780 Tone-Clock circuit pack detects loss of signal. Refer to
Note (b) 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 refer to SYNC (Synchronization) Maintenance
documentation for recommended strategy for those errors.
Table 10-412. TEST #649 Stratum 3 Clock Alarm Query — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page