Lucent Technologies Release 7 Manuel D’Utilisation
DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1545
STRAT-3 (Stratum 3 Clock)
9
1
FAIL
(
continued)
If you are ON-SITE, use the following procedure:
1. Look for a red LED on CI card A (i.e., the left CI card). If there is a 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 also, then proceed to Step 3.
on-site, proceed to Step 3. If after replacing the CI card, the red LED on
the new CI card lights also, then proceed to Step 3.
2. If a spare CI card is available, replace the suspect CI card. Otherwise,
issue the test synchronization r 4 command to clear the alarm. If any test
repetitions fail, then follow the procedure for those failures.
repetitions fail, then follow the procedure for those failures.
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, then proceed to Step 5.
recommended strategy to resolve any DS1-BD errors found. If there are no
DS1-BD errors, then proceed to Step 5.
4. After all DS1-BD errors have been resolved, then determine if the alarm
still exists by issuing the test synchronization r 4 command to clear the
alarm. If any test repetitions fail, then follow the procedure for those
failures.
alarm. If any test repetitions fail, then 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, then follow the
procedure for those failures.
procedure for those failures.
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.
two power supplies, and one of them has failed. However, the clock can
function with one power supply.
1. Locate the failed power supply by looking for a power supply with a red
LED and replace it. The power supply is located under the Stratum 3 clock
carrier.
carrier.
2. Determine if the alarm still exists by issuing the test synchronization r 4
command to clear the alarm. If any test repetitions fail, then follow the
procedures for those test failures.
procedures for those test failures.
4
FAIL
One clock unit failed.
1. Look at the Stratum 3 cabinet for a red LED on a circuit card marked
‘‘ST3.’’ Replace the card.
2. Determine if the alarm still exists by issuing the test synchronization r 4
to clear the alarm. If any test repetitions fail, then follow the procedures for
those failures.
those failures.
Table 9-588.
TEST #161 Looparound Test — Continued
Error
Code
Code
Test
Result
Description/ Recommendation
Continued on next page