Nortel Meridian Meridian 1 Upgrade Manual page 53

Communication Server 1000M and Meridian 1
Procedure 9
Moving Clock Controller 1
CAUTION
Clock controller cards must be NTRB53 Clock Controller
cards.
CAUTION — Service Interruption
Service Interruption occurs if wrong Clock Controller
is removed!
Move only Clock Controller 1 at this point in the upgrade.
Do not move Clock Controller 0 at this time.
If the system has a QPC Clock Controller, replace it with an NTRB53 Clock
Controller (to be installed in the same Network Shelf and slot) and verify
settings according to Table 11 on
If the system has an NTRB53 Clock Controller, skip this procedure.
1 Label and disconnect the Clock Controller 1.
2 Disconnect the cable from the Clock Controller 1 faceplate card.
3 If primary and secondary clock reference cables are connected to the
Clock Controller 1 faceplate, disconnect them last.
4 Remove QPC Clock Controller 1 from the Network Module.
5 Set the Clock Controller 1 switch settings according to and Table 11 on
page 54.
6 Place NTRB53 Clock Controller in the same Network Shelf and slot. DO
NOT seat the Clock Controller 1 and DO NOT faceplate enable the card.
Performing the upgrade
page 54.
81C IGS to CS 1000M MG CP PII FNF Upgrade
Page 53 of 284