DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-668DS1 CONV-BD
9
!WARNING:
Do not power down a Switch Node carrier to replace a circuit pack.
!WARNING:
Replacing a Switch Nod e Interface, Switch Node Cloc k, Expansion
Interface or DS1 Converter circuit p ack on a simplex system d isrupts
service. The service effect c an range from outage of a sing le EPN to outage
of the entire system.
!WARNING:
A DS1 Converter Complex must consist of two TN574 boa rds or two
TN1654 boards. A TN574 cannot be c ombined with a TN1654 in the same
DS1 CONV Complex.
!WARNING:
The two DS1 CONV boards, TN1654 and TN574, use unique “Y” cables that
are incompatible with each other.
Steps Comments
Enter status pnc Verify that the component to be rep laced is
on the standby PNC.
Enter busyout pnc
Enter busyout board UUCSS UUCSS represents the cabinet-carrier-slot
address of the circ uit pack to be rep laced.
Replace the circuit p ack with the same
DS1 CONV board type.
Enter release board UUCSS CAUTION:
Do not busyout any Expansion
Interface circuit p ack after this point.
Enter test alarms long clear for
category exp-intf
Wait 5 m inute s for SNI-BD , SNI-PEER,
FIBER-LK, and DS1C-BD alarms to clear,
or enter clear firmware counters
<a-pnc or b-pnc>
Use the letter designation of the p nc which
holds the replaced component (the stand by
pnc).
Enter status pnc If either PNC state-of-health is not
"functional", consult the PNC-DUP section of
the Maintenance Manual.
Enter release pnc