Nortel Networks NN43001-301 manual Trck PCK, For primary, For secondary, Frun, For free-run

Installation procedures 173

TRCK	PCK	(for primary)
	SCLK	(for secondary)
	FRUN	(for free-run)

14Issue the status check command, SSCK.

Note: In order for the clock enhancement feature in the clock controller (NTRB53) to be fully functional, the user must issue a manual INI to activate the clock enhancement feature.

—End—

Install or replace a Clock Controller on a Single Group and Multi Group System

Procedure 19 "Install a Clock Controller on a Single Group and Multi Group System" (page 173) outlines the steps to install a clock controller on Single Group and Multi Group systems.

Procedure 19

Install a Clock Controller on a Single Group and Multi Group System

Step Action

1Unpack and inspect the circuit card.

2Determine the cabinet and shelf location. Refer to Table 64 "Clock Controller shelves and slots" (page 169).

3Set the clock controller switch. Refer to Table 65 "Clock Controller switch settings for QPC471 vintage H" (page 169), Table 66 "Clock Controller switch settings for QPC775" (page 170), or on Table 65 "Clock Controller switch settings for QPC471 vintage H" (page 169).

4Set the ENL/DIS toggle switch to DIS (disable).

5If replacing a clock controller, do the following:

•Perform a status check on the clock with the SSCK command in LD 60. The new controller should have the same status.

•Use LD 135 to STAT the CPU and switch if necessary

•Disable the old card using LD 60.

Note 1: Do not disable an active clock or a clock associated with an active CPU.

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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