Line Compensation Settings - AT&T MERLIN LEGEND Release 3.1 System Planning Manual

Selecting Line/Trunk Options
Table 3–3. Line Compensation Settings
Setting
1 (factory setting)
2
3
4
5
*
Based on 22-gauge cable.
8. If the system includes both 800 NI-BRI and 100D modules, clock
synchronization planning should be completed at the same time. There is
only one primary/secondary/tertiary clock for both 800 NI-BRI modules
and 100D modules, with the same system programming screens used for
both types.
Plan your clock source administration to minimize the need for clock
switching, which is known to cause noise on active calls.
Under Priority in the Clock Synchronization section, do one of the
following:
If installing only one 100D module:
— To keep the factory setting, check Primary (that is, this module
— If the synchronization source is other than through the 100D
If installing more than one 100D module, decide which module, if any,
provides the primary synchronization:
— If Module 1 provides clock synchronization, check Primary in the
— If Module 2 (or Module 3) provides clock synchronization, check
— If the synchronization source is other than through a 100D module,
3–24
Lines/Trunks
Cable Feet *
dB Loss
-0.6
0 133
-1.2
133 266
-1.8
266 399
-2.4
399 533
-3.0
533 655
provides synchronization for the system.)
module, check None.
first box (the factory setting).
Primary in the box that describes that 100D module.
check None.