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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-1338TDM-CLK (TDM Bus Clock)
10
2. Replace the current standby Tone-Clock circuit pack. See
How to
Replace the Tone-Clock Circuit Pack
in the TONE-BD section.
j. The indicated active Tone-Clock circuit pack, which is on a port network
that does not contain the system synchronization reference (a slave
Tone-Clock), has detected a loss of timing signal from its EXP-INTF
synchronization source.
1. Enter display errors and display alarms, and follow the
associated repair procedures for EXP-INTF, TDM-CLK, and
TONE-BD error log entries that have on-board alarms.
2. If the 2305 errors persist, follow the repair procedures for EXP-INTF
error log entries 257, 769, or 770, or any errors logged agains
SNI-BD, SNC-BD, or FIBER-LK.
3. If the 2305 errors persist:
a.
For Port Networks with more than one Tone-Clock circuit
pack
, execute the command test synchronization r 10, and
check to see if new 2305 errors against TDM-CLK were
reported. If not, execute reset PNC interchange and then
test synchronization r 10 again, and recheck for new 2305
errors against TDM-CLK
b.
For Port Networks with a single Tone-Clock circuit pack
,
execute the command test synchronization r 10, and check
to see if new 2305 errors were reported.
If no new instances of the 2305 errors were logged for either test,
then enter test tone-clock UUC long clear to clear the TDM-CLK
errors and the procedure is complete.
4. For Port Networks with more than one Tone-Clock circuit pack,
interchange Tone-Clocks with the set tone-clock UUC, then run
test synchronization r 10, and check to see if new 2305 errors are
reported against the new active Tone-Clock circuit pack. If not,
replace the standby Tone-Clock circuit pack. See
How to Replace
the Tone-Clock Circuit Pack
in the TONE-BD section. If this clears
the error, the problem has been resolved.
5. Replace the EI circuit pack for the active PNC. In the direct-connect
case, use the list fibers command to identify which active EI
connects with the PPN.
6. If the problem is still not cleared, and the Tone-Clock circuit pack
reported in the error log has not been replaced up to now, replace
it. See
How to Replace the Tone-Clock Circuit Pack
in the TONE-BD
section.