Nortel Networks NN43001-301 - Manual (Page 171)

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
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 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
Copyright © 2003-2007, Nortel Networks
.