AT&T MERLIN LEGEND Installation & Maintenance Manual page 292

Programming Procedures
Step
4. Specify that the module
in slot shown on line 1
provides
Primary clock
synchronization
Secondary clock
synchronization
Tertiary clock
synchronization
No clock
synchronization
5. Save
choice and
Source of Synchronization
s c r e e n
6. Specify source of clock
synchronization
To specify that clock is
synchronized to
external endpoint
To specify that clock is
free running
7. Save choice and exit
8. Select Clock Activation
9. Activate or deactivate
clock
To activate clock
To deactivate clock
DS1 Facilities
4-50
Console
Primary
Secondary
Tertiary
None
display
Enter
Source
Loop
Local
Enter
Activation F 3
Active
Not Active
PC
F1
F2
F3
F4
F10
F2
F 1
F2
F10
F1
F2