Nortel Networks NN43001-301 - Manual (Page 173)

Installation procedures 173
TRCK PCK (for primary)
SCLK (for secondary)
FRUN (for free-run)
14 Issue 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
1 Unpack and inspect the circuit card.
2 Determine the cabinet and shelf location. Refer to Table 64 "Clock
Controller shelves and slots" (page 169) .
3 Set 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) .
4 Set the ENL/DIS toggle switch to DIS (disable).
5 If 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
Copyright © 2003-2007, Nortel Networks
.