DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-797EXP-INTF (Expansion Interface Circuit Pack)
9
Replacing an EI 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.
6. Wait 5 minutes for SNI-BD, FIBER-LK
AND DS1 CONV-BD alarms to clear,
or enter clear firmware counters
a-pnc
Step Action Explanation/Caution
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 DS1 CONV alarms to
clear, or enter clear firmware
counters <a-pnc or b-pnc>
Use the letter designation of the pnc that holds
the replaced component (the standby pnc).
8. Enter status pnc If either PNC state-of-health is not “functional,”
consult the ‘‘PNC-DUP (PNC Duplication)’’
section.
9. Enter release pnc
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Step Action Explanation/Caution
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