Lines/Trunks; Line/Trunk Jack Types; Module Types And Line/Trunk Jack Types - AT&T MERLIN LEGEND Release 3.1 System Planning Manual

Identifying Line/Trunk Jacks

Module Types and Line/Trunk Jack Types

The line/trunk jack type is determined by the type of module. Table 3 1 lists the
line/trunk jack types and the incoming line/trunk or auxiliary equipment that can
be connected to these jacks.
Table 3–1. Line/Trunk Jack Types
Module Line/Trunk
Type Jack Type
400 Loop-start (LS)
800
408
400 GS/LS Ground-start/
800 GS/LS loop-start
408 GS/LS (GS/LS)
408 GS/LS-MLX
800 GS/LS-ID
800 DID DID
(Hybrid/PBX)
800 NI-BRI NI-1 BRI
400EM Tie
100D DS1
For detailed information about the module types and their specifications, see
the hardware descriptions in the Equipment and Operations Reference . For
detailed information about line/trunk types, including DS1 (Digital Signal Level
1) facilities and the 100D module and NI-1 BRI facilities and the 800 NI-BRI
module, see the functional description of the system in the same book.
Number
of Jacks Used to Connect
4 Line/Trunk Types: Basic,
8 Special Purpose (FX, WATS)
4
Auxiliary Equipment: Music On Hold,
Loudspeaker paging system,
Maintenance Alarm, MERLIN Identifier
4 Line/Trunk Types: Basic,
8 Special Purpose (FX, WATS)
4
4 Auxiliary Equipment: Music On Hold,
8 Loudspeaker paging system,
Maintenance Alarm, MERLIN Identifier
8 DID
8 (16 channels) NI-1 BRI
4 Tie
1 (24 channels) T1
T1 Switched 56 Data
PRI
3–3

Lines/Trunks