AT&T MERLIN LEGEND Release 2.0 System Programming Manual page 209

Programming Procedures
Clock Synchronization
Use this procedure to specify the modules that provide primary, secondary, and
tertiary clock synchronization. In addition, you can specify whether the clock is
synchronized to the external end point (loop) or to the clock reference source
(local). This procedure is also used to activate or deactivate the clock.
NOTE:
This procedure is necessary only if your system includes more than one
100D module.
Entering Programming
Console: Select Menu
PC/SPM: Type SPM
Exiting Without Changes
To exit from any screen without making changes, select Exit on the console or
[F5]
press on the PC before saving your entry or menu selection.
Summary: Clock Synchronization
Programmable by
Mode
Idle Condition
Planning Form
Factory Setting
Valid Entries
Inspect
Copy Option
Console Procedure
PC Procedure
3-118 Clock Synchronization
Sys Program Exit
[F1]
press any key
System manager
All
Not required
Form 3b, Incoming Trunks - DS1 Connectivity (100D
Module)
Primary clock - the first 100D module in the control unit
carrier; source – loop; activation – active
Primary/secondary/tertiary and loop/local
No
No
LinesTrunks LS/GS/DS1
Clock Sync Priority
synchronization Enter
of synchronization
clock activation Enter
[F4] [F1]
Type slot no.
[F1]
Select clock synchronization
[F2]
Select source of synchronization
[F3]
Select clock activation
[F5] [F5]
[F5]
Dial SIot no.
Select clock
Source Select source
Enter Activation
Exit Exit
[F10] [F7]
[F10]
[F10]
[F10] [F5]
Enter
Select
Exit