AT&T MERLIN LEGEND Release 3.1 System Programming Manual page 397

Lines and Trunks
Type of Trunk
Use this procedure to specify the type of trunk, loop-start (LS) or ground-start
(GS), for each outside trunk connected to one of the following modules:
400 GS/LS
408 GS/LS
800 GS/LS
408 GS/LS-MLX
800 GS/LS-ID (loop-start trunks only)
Any combination of trunk types (all loop-start, all ground-start, or some of each)
is permissible.
This procedure is not used for a system registered with a KF registration number
(Key or Behind Switch). Ground-start trunks are allowed only for systems with an
MF (Hybrid) or PF (PBX) registration number.
Summary: Type of Trunk
Programmable by
Mode
Idle Condition
Planning Form
Factory Setting
Valid Entries
Inspect
Copy Option
Console Procedure
PC Procedure
System manager
All
Form 2c, System Numbering: Line/Trunk Jacks
All loop-start
All Ground, All Loop, Ground-Start, Loop-Start
Yes
Yes
trunk type Dial port no.
Type slot no.
port no.
Dial slot no.
Select trunk type
Programming Procedures
Select
Type
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