
MERLIN LEGEND Communications System Release 7.0
System Programming
555-670-111
Issue 1
April 1999
Programming Procedures
3-50
Lines and Trunks
3
Type of Trunk
3
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
■
408 GS/LS-MLX
■
408 GS/LS-ID-MLX
■
800 GS/LS
■
800 GS/LS-ID (loop-start trunks only)
■
412 LS-ID-ETR
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
3
Programmable by
System Manager
Mode
All
Idle Condition
Not required
Planning Form
2c, System Numbering: Line/Trunk Jacks
Factory Setting
All Loop-Start
Valid Entries
All Ground, All Loop, Ground-Start, Loop-Start
Inspect
Yes
Copy Option
Yes
Console Procedure
LinesTrunks
→
LS/GS/DS1
→
Dial slot no. (1–17)
→
Enter
→
Select trunk type (all ground, all loop,
ground-start, or loop-start)
→
Dial port no.
→
Enter
→
Exit
→
Exit
PC Procedure
→
→
Type slot no. (1–17)
→
→
Select trunk
type (all ground, all loop, ground-start, or loop-
start)
→
Type port no.
→
→
→