DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1724TDM-CLK (TDM Bus Clock)
9
8. If all tests pass and the alarm does not resolve, retest (
test tone
UUCSS long clear
).
9. If the test passes, terminate the repair process. If the test fails,
replace the circuit pack at the customer’s convenience.
g. Tone-Clock circuit pack on-board maintenance has detected one or more
clock slips
, timing differences between its internal reference source and
the synchronization signal provided by the master Tone-Clock. Although
no clock slip errors are expected during normal operation, both manual
and automatic interchanges of Tone-Clock circuit packs, synchronization
references, and PNCs, may result in clock slip counts.
If error 1281 also is logged for the same Tone-Clock circuit pack, it is
related to this problem, and should be corrected first. Otherwise, continue
with the procedure below.
1. Use
test tone-clock UUC
, and examine the results of test #149 to
see if slip errors are still occurring. If no new slip errors are
reported, and if these errors are not causing a TDM-CLK alarm,
they may be ignored. Use
test tone-clock UUC long clear
to clear
the errors.
2. Otherwise, enter the
display errors
command, and follow
corrective procedures for any other TDM-CLK, TONE-BD, SYNC,
DS1C-BD, EXP-INTF, SNC-BD, and SNI-BD errors logged, except
for those in Table 9-645
.
3. If 1025 errors persist, refer to SYNC Maintenance in this manual
and follow the procedures in the "Approach to Troubleshooting"
section.
h. Error Type 1281
This error is an indication that the Tone-Clock circuit
pack has detected a loss of timing signal from the system synchronization
reference. The Tone-Clock circuit pack has switched synchronization
references.
1. Resolve any errors logged against the SYNC or STRAT-13
maintenance objects.
Table 9-645. Error Log Entries for Slip Errors
Circuit Pack Name
Error Log
Name
Error Log Entry
for Slips
DS1 Interface DS1-BD 3073 to 3160
Expansion Interface EXP-INTF 2305
Switch Node Interface SNI-BD 1537
Tone-Clock TDM-CLK 1025
UDS1 Interface UDS1-BD 3073 to 3160
DS1C Circuit Pack DS1C-BD 3329
