AT&T MERLIN LEGEND Release 3.1 System Planning Manual page 95

Selecting Line/Trunk Options
1. In the Module Slot No. space, write the number of the control unit slot that
contains the module (see the Control Unit Diagram on Form 1).
NOTE:
If more than one 100D module is used, complete the first box, Module 1,
to show the options assigned to the 100D module in the lowest number
control unit slot. Use the second box for the second lowest-numbered
slot, and the last box for the highest-numbered slot.
2. Under Type of Service, check T1 (the factory-setting).
NOTE:
For T1 or T1 Switched 56 service, the T1 box must be checked on the
form. (If you leave this blank, and T1 is not specified during
programming, the 100D module will not be programmed.)
NOTE:
Steps 3, 4, 5, and 6 must match the service provider settings. Check with
the provider if necessary. See "Obtaining Telephone Company
Information," in Chapter 1, for more information.
3. In the table under the T1 Trunks heading, write the channel number(s) for
each trunk type and/or, for Tie or All Tie, check the Tie-PBX, Toll, or S56
boxes.
4. Under the Frame Format heading, do one of the following:
To retain the factory setting, check D4 Compatible.
To change the factory setting, check Extended Superframe (ESF).
5. Under the Suppression (Line Code) heading, do one of the following:
To retain the factory setting, check AMI-ZCS.
To change the factory setting, check B8ZS.
6. Under the Signaling Mode heading, for all boxes that describe T1
modules, do one of the following:
To retain the factory setting of robbed-bit signaling, check Robbed-Bit
Signaling (RBS).
To change the factory setting to common-channel signaling, check
Common-Channel Signaling (CCS).
7. Under the Line Compensation heading:
a. Fill in the approximate distance (number of cable feet) between the
100D module and its channel service unit (CSU) or other far-end
connection in the space provided next to Cable Feet.
b. Use Table 3 3 to select the Line Compensation setting needed. (The
factory setting is a value of 1.)
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Lines/Trunks