AT&T MERLIN LEGEND Communications System PBX System Planning Manual page 59

Trunks
Jacks for Outside Trunks
3-4 Trunk Connections
Identify the specific outside trunks you want to connect to each loop-start and
ground-start/loop-start trunk jack. Connect outside trunks to a continuous
sequence of trunk jacks on the control unit, beginning with the first trunk jack
(logical ID 1). Use 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 (foreign exchange).
Group trunks together according to type: basic loop-start trunks, basic
ground-start trunks, special-purpose loop-start or ground-start trunks. DID, PRI,
T1, and tie trunks are automatically grouped according to type since they
require specific types of modules. Your local telephone company supplies the
information you need to identify the specific trunks connected to each trunk jack
on each DID and tie-trunk module and each channel on each 100D module.
Planning Form instructions
On Form 2c:
1.
In the "Trunk Type" columns, write the type of trunk you plan to connect to
each trunk jack or T1 channel - basic, FX, WATS (include band), DID, tie.
(Refer to the local telephone company trunk information list.)
If a trunk such as WATS is only inbound or outbound (not two-way),
include that information along with the trunk type.
If the jack type shown in the "Jack Type" column is GS/LS, next to the
trunk type (basic, FX, WATS), write either "GS" or "LS" to indicate the
trunk type. For a T1 trunk not used at this time, write "unequipped."
Note: For other T1 or PRI trunks, the kind of service connected (such as
Megacom 800) will be completed later.
2 .
In the "Telephone Number or Equipment" column, write the telephone
number for each outside trunk on the line with the logical ID for its trunk
jack. If you don't yet know the telephone number, leave the column blank
and enter the information later.
Note: Be sure the trunk type associated with each telephone number
matches the jack type.
An example of a partially completed Form 2
remaining entries (Rotary Dial, etc.) are covered in the 'Trunk Options'
instructions later in this chapter.
is shown in Figure 3-1. The
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