Demand test descriptions and error codes - Avaya Support

Figure 79: Synchronization Troubleshooting, Fig. 4 of 5
From Figure
1, 2, or 3
D
Many DS1 spans
with slips in the
PN containing the
master reference?
Slipsonmorethan
one slave PN?
Slips remain?
Done
No
Center Stage
Switch (CSS) or
Direct Connect (DC)?
DC
NO
No
Yes
Yes
CSS
YES
Inspect fiber cables between the timing
master and slave PN for connectivity
issues. Look for crimped cables, loose
connections, bent pins, etc.
Replace expansion interface (EI) boards
between the timing master and the slave
PN with slips.
8
F
To Fig 5
8
Replace Tone-Clock or IPSI
in Master timing PN.
(The current PN providing
sync source)
9
Replace
Tone-Clock
in timing
slave PN.
SYNC (Port Network Synchronization)
For an S8xxx server Fiber-PNC CSS, the problem is in the
IPSI or Tone Clock, EI, or SNI of the PN containing the
master reference. If equipped, switch PNC and/or system
tone clocks to try and change the symptoms. Then change
circuit packs above, one at a time.
.
Slips remain?
No
Yes
Escalate
Issue 5 May 2009 903