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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-1306STRAT-3 (Stratum 3 Clock)]
10
8
(cont’d.)
FAIL 3. Look for DS1-BD (DS1 Interface Circuit Pack) errors
using the display error command. Refer to the
DS1-BD Maintenance documentation for
recommended strategy to resolve any DS1-BD
errors found. If there are no DS1-BD errors, proceed
to Step 5.
4. After all DS1-BD errors have been resolved,
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.
5. Check the DS1 reference A connections to the
Stratum 3 clock.
6. 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.
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.
Table 10-394. TEST #649 Stratum 3 Clock Alarm Query — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page