Nortel Networks NN43001-301 manual Procedure Installing new equipment

176Clock Controller description and installation

4Set the ENL/DIS switch to DIS on the card you are removing.

5Tag and disconnect the cables to the card you are removing.

6Unhook the locking devices on the card and pull it out of the card cage.

—End—

Follow these procedures to install new equipment with Clock Controller on Large Systems.

Procedure 21

Installing new equipment

Step Action

1Set the ENB/DIS switch to DIS on the replacement card.

2Set the option switches on the replacement card (NTRB53). Refer to Table 67 "Clock Controller switch settings for NTRB53" (page 170).

3Insert the replacement card into the vacated slot and hook the locking devices.

4Connect the reference cables (J1 and J2) to the replacement card.

CAUTION

Clock-to-Clock cable J3 should never be connected between the old clock (QPC471 or QPC775) and the new clock (NTRB53).

5Set the ENB/DIS switch to ENB on the replacement card.

6Software enable the card. At the prompt, enter

LD 60

ENL CC x Enable clock controller card, where x = 0 or 1

7Verify that the card is active. At the prompt, enter:

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

****Exit the overlay

8Switch to the core with the new clock. At the prompt, enter:

Nortel Communication Server 1000

ISDN Primary Rate Interface Installation and Commissioning

NN43001-301 02.03 Standard

Release 5.5 7 December 2007

Copyright © 2003-2007, Nortel Networks