Avaya S8700 Maintenance Manual page 2110

Maintenance-Object Repair Procedures
Critical-Reliability System (Duplicated Server
and PNC)
!
WARNING:
On a system with duplicated PNC, synchronization may be provided over a
combination of active and standby components. This condition is indicated
by an OFF-BOARD WARNING alarm against TDM-CLK with error type
2305. Repairs to standby PNC in this state may disrupt service. Otherwise,
if the active PNC is functional, replacement of a standby component will not
disrupt service.
STEPS:
Enter status pnc
Enter busyout pnc
Enter busyout board
UUCSS
Replace the circuit pack
Enter release board
UUCSS
Enter test alarms long
clear for category exp-intf
Wait 5 minutes for SNI-BD,
SNI-PEER, FIBER-LK, and
DS1C alarms to clear, or
enter clear firmware
counters a-pnc | b-pnc
Enter status pnc
Enter release pnc
8-1388 Issue 1 May 2002
Verify that the component to be replaced is on the standby PNC.
UUCSS represents the cabinet-carrier-slot address of the circuit pack
to be replaced.
!
CAUTION:
Do not busyout any Expansion Interface circuit pack after
this point.
Use the letter designation of the pnc which holds the replaced
component (the standby pnc).
If either PNC's state of health is not "functional", consult
(PNC Duplication)'' on page 8-1283.
''PNC-DUP
555-233-143