Nortel Networks NN43001-301 manual Start the Clock Controller, Clock Controller commands, Sclk

Installation procedures 171

Note: Switches 7 and 8 are not used.

Start the Clock Controller

The clock controller, when first enabled, is in free run mode. It stays in this mode for several minutes before being switched to tracking mode. Manual mode setting is possible using LD 60.

All clock controllers begin tracking within approximately 15 minutes.

Clock Controller commands

During the installation procedure you will use some of the clock controller commands available in LD 39 and LD 60. Refer to Software Input Output Reference — Maintenance (NN43001-711).

LD 39 commands with the NTRB53 Clock Controller

Command	Description
DIS SCG x	Disable SCG card x (0 or 1).
	Not applicable for NTRB53 Clock Controller. Use LD 60 instead.
ENL SCG x	Enable SCG x (0 or 1).
	Not applicable for NTRB53 Clock Controller. Use LD 60 instead.
SCLK	Switch clock to other SCG.
	Functions with NTRB53 Clock Controller

STAT SCG x Print status of SCG x (0 or 1).

Prints normal status of NTRB53 (not full status)

Install or replace a Clock Controller on a Half Group and Single Group system

Procedure 18 "Install a clock controller for Half Group and Single Group Systems." (page 171) outlines the steps to install a clock controller on Half Group and Single Group systems.

Procedure 18

Install a clock controller for Half Group and Single Group Systems.

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 Table 67 "Clock Controller switch settings for NTRB53" (page 170).

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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