Avaya S8700 Maintenance Manual page 2224

Maintenance-Object Repair Procedures
Table 8-587. Timing Slip Error Types
Circuit Pack Name
DS1 Interface
Expansion Interface
Switch Node Interface
Tone-Clock
UDS1 Interface
If the alarm is major:
If the Standby Tone-Clock circuit pack became active:
If slip alarms exist after following the repair procedures for any of the
previous cases, clear the slip alarms by running the test board command
with the clear option. See
of circuit packs and associated slip error log entries.
This error indicates that the Tone-Clock circuit pack in the master port
network is not a TN780. If duplicate Tone-Clock circuit packs exist in the
master port network, this error may mean that one or both Tone-Clock
circuit packs are not TN780s. Verify that the Tone-Clock(s) in the master
port network are TN780s.
8-1502 Issue 1 May 2002
Error Log Name
DS1-BD
EXP-INTF
SNI-BD
TDM-CLK
UDS1-BD
Check connections between the Stratum-3 clock and the switch. If
there are no loose connections, then, using the Stratum-3 Wiring
Guide, check that the wiring installation is correct. After
reconnecting the loose connection or correctly rewiring it, clear the
alarm by first issuing the disable synchronization-switch
command followed by the enable synchronization-switch
command. Wait 1-minute, and then execute the status
synchronization command. If Maintenance Name on the status
screen shows ''STRAT-3,'' then the problem is resolved.
Check the connection between the Stratum-3 clock and the TN780
Tone-Clock circuit pack from which the system has just switched. If
there are no loose connections, then, replace the circuit pack
containing the TN780 Tone-Clock circuit pack. See
IPSI or Tone-Clock Circuit
TN780 Tone-Clock circuit pack, use the test tone-clock UC long
command to check that the Tone-Clock is receiving a signal from the
Stratum-3 clock. If every test passes, switch to the new Tone-Clock
circuit pack via the set tone-clock UC override command. If Test
#651 fails, then the original TN780 Tone-Clock circuit pack should
be reinserted, and the cable between the Stratum-3 clock and the
TN780 Tone-Clock circuit pack should be replaced. If Test #651
continues to fail, then escalate the problem.
Table
Error Log Entry for Slips
3073 to 3160
2305
1537
1025
3073 to 3160
Pack''. Before switching back to the new
8-587, ''Timing Slip Error Types''
''Replacing the
for a list
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