DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-796EXP-INTF (Expansion Interface Circuit Pack)
9
If replacing the Active Tone-Clock did not bring up the link(s), then
this Tone-Clock circuit pack is not the source of the problem.
c. On a Standard Reliability system in which the PPN contains the
suspect Tone-Clock circuit pack:
Replace the PPN Tone-Clock circuit pack at a time when bringing
down the system is most convenient to the customer.
!
CAUTION:
Replacing the PPN Tone-Clock circuit pack will stop call
processing on that network and also bring down stable calls.
This action will eventually cause a Reset System 2 (Cold_2
restart).
If replacing the Tone-Clock circuit pack restores the link(s), then the
Tone-Clock circuit pack is defective and should be replaced.
Otherwise, the problem is not with the PPN Tone-Clock circuit pack.
Replacing an EI Circuit Pack—Simplex PNC
!
WARNING:
Do not power down a Switch Node carrier to replace a circuit pack.
!
WARNING:
Replacing a Switch Node Interface, Switch Node Clock, Expansion
Interface or DS1 Converter circuit pack on a simplex system disrupts
service. The service effect can range from outage of a single EPN to outage
of the entire system.
Step Action Explanation/Caution
1. Enter busyout board UUCSS UUCSS = cabinet-carrier-slot address of the
circuit pack to be replaced.
2. Replace the circuit pack
3. Wait for the circuit pack to reset Red and green LEDs light and then go out.
If the red LED remains lit, see the Note under
‘‘Expansion Interface LEDs’’
above.
4. Enter release board UUCSS CAUTION:
Do not busyout any Expansion
Interface circuit pack after this point.
5. Enter test alarms long clear for
category exp-intf
