Nortel Networks NN43001-301 Procedure Remove old equipment, Scpu, Switch cores, Exit the overlay

Installation procedures 175

Upgrade to an NTRB53 Clock Controller on a Single Group and Multi Group System

Follow these procedures to replace the existing clock controller with the NTRB53 Clock Controller on Large Systems.

Note: The NTRB53 Clock Controller cannot be combined with a QPC775 or a QPC471 card in one system.

Procedure 20

Remove old equipment

Step Action

1Ensure the clock controller card being removed for dual core systems is on the inactive core. If you need to switch cores go to LD 135 and enter:

LD 135

SCPU Switch cores

****Exit the overlay

2Disable the QPC775 or QPC471 Clock Controller card. At the prompt, enter:

LD 60 Load the program

SSCK x Get status of system clock where x = 0 or 1

Switch clocks if the clock is active at the prompt, enter:

SWCK Switch system clock from active to standby

SSCK x Get status of system clock where x = 0 or 1

Ensure the other clock controller is active and in the free run mode. At the prompt, enter:

SSCK x Get status of system clock where x = 0 or 1

TRCK Set clock controller tracking to free run

FRUN

3Disable the clock controller card you are removing. At the prompt, enter:

DIS CC x Disable system clock controller where x = 0 or 1

Nortel Communication Server 1000

ISDN Primary Rate Interface Installation and Commissioning

NN43001-301 02.03 Standard

Release 5.5 7 December 2007

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