Avaya S8700 Maintenance Manual page 2238

Maintenance-Object Repair Procedures
B
Slips
Reference
Facilities?
5
No
Are there
many facilities
with excessive slips?
Few
8
Check the overall
timing network to
verify the source is
traceable back to the
same source
(for example, Hillsboro, Mo).
8
Use the facility fault
sectionalization technique
section with slip counts as
the pass/fail indication to
isolate the trouble.
Figure 8-89. Synchronization Troubleshooting, Fig. 3 of 6
8-1516 Issue 1 May 2002
Is there a
Yes
loss-of-signal or
network alarm?
6
No
Replace circuit
7
packs:
– IPSI/Tone-Clock in
the timing master PN
– DS1 in timing master
PN
Many
To Fig 5
D
Problem in switch
Yes
Fix DS1-BD and
UDS1-BD alarms.
6
Escalate, if the
problem is not fixed.
555-233-143