SNI-BD (SNI Circuit Pack)
Issue 1 May 2002
8-1435555-233-143
Replacing an SNI Circuit Pack— Duplicated 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.
1. Enter status pnc Verify that the component to be replaced is on the
standby PNC.
2. Enter busyout pnc
3. Enter busyout board UUCSS UUCSS represents the cabinet-carrier-slot address
of the circuit pack to be replaced.
4. Replace the circuit pack
5. Enter release board UUCSS
!
CAUTION:
Do not busyout any Expansion Interface
circuit pack after this point.
6. Enter test alarms long clear for
category exp-intf.
7. Wait 5 minutes for SNI-BD,
SNI-PEER, FIBER-LK, and DS1C
alarms to clear, or enter clear
firmware counterssp 0 a-pnc |
b-pnc.
Use the letter designation of the pnc which holds the
replaced component (the standby pnc).
8. Enter status pnc. If either PNC’s state of health is not "functional",
consult ‘‘PNC-DUP (PNC Duplication)’’ on page
8-1283.
9. Enter release pnc.
To Next Page
Loading...
