Incoming Line/Trunk Type - AT&T MERLIN LEGEND Release 3.1 System Planning Manual

Identifying Line/Trunk Jacks
3. For systems that include a 100D module, do one of the following in the
Jack Type column:
If the module will emulate trunks or will be used for digital data
transmission, write the appropriate jack type code (see Table 3 2) for
the channels being used (for example,
write
If the module will connect services (for example, Megacom, Megacom
800, and so on), write
You are now ready to match incoming trunks to these available jacks as
described in the next section.

Incoming Line/Trunk Type

Use the procedure in this section to match incoming trunks to the continuous
sequence of line/trunk jacks on the control unit, beginning with the first line/trunk
jack (logical ID 1).
NOTE:
(Key mode only) If the system is registered with the FCC registration number of
AS59CM-7914-KF-E, and the processor module has been modified for
Permanent Key mode, you can connect loop-start trunks to the GS/LS type
line/trunk jacks. With the KF registration number, ground-start trunks are allowed
only when the system includes DS1 connectivity dedicated as a T1 type and the
channels are used to emulate ground-start trunks.
This procedure also includes instructions for assigning a label to identify the
line/trunk being used.
Planning Form Instructions
1. In the Incoming Line/Trunk Type column of Form 2c, write the type of
line/trunk you plan to connect to each line/trunk jack, T1 channel or BRI
channel: Main No., personal line, FX (Foreign Exchange), WATS (include
band), DID, or Tie. (Contact the local telephone company for line/trunk
information.) Use the following guidelines:
Group trunks together according to type: basic loop-start or ground-
start trunks, and special-purpose loop-start or ground-start trunks.
(DID, PRI, T1, BRI and tie trunks are automatically grouped according
to type since they require specific types of modules.) The local
telephone company supplies the information you need to identify the
specific trunks connected to each line/trunk jack on each DID and tie
trunk module and each channel on each 100D or 800 NI-BRI module.
Use line/trunk jacks at the beginning of the sequence for basic
ground-start and/or basic loop-start trunks. Use jacks later in the
sequence for special-purpose trunks such as WATS or FX.
3–6
Lines/Trunks
T1 if the channels are not being used at this time.
PRI for all 24 logical IDs of PRI-type modules.
T1-LS , T1-TIE , or T1-S56 ), or