MERLIN LEGEND Communications System Release 6.0
System Programming
555-660-111 Issue 1
February 1998
Programming Procedures
Page4-127Tie Trunks
4

E&M Signal 4

Use this procedure to specify the type of tie trunk signal, as follows:
■E&M Mode:
—1S, Type 1 Standard. Tie trunks that are connected through the
local telephone company.
—1C, Type 1 Compatible. Tie trunks that are connected directly to a
system that uses 1S signaling.
■Simplex Mode:
—5, Type 5 Simplex. Tie trunks that are connected to a system using
Type 5 signaling.
NOTE:NOTE:NOTE:
In Release 6.0 and later systems, E&M trunks that are used for networking
should be programmed at each end with a switch identifier that indicates
the remote system where the trunk is connected. See “Uniform Dial Plan
Facilities” on page 4–82 for details.

Summary: E&M Signal 4

Programmable by System Manager
Mode All
Idle Condition Tie trunk idle
Planning Form Form 3c, Incoming Trunks: Tie
Factory Setting 1S
Valid Entries 1S, 1C, 5
Inspect No
Copy Option Yes
Console Procedure → → →Dial trunk no.→
→Specify signaling type→ → →
PC Procedure → → →Type trunk no.→ →Specify signaling
type→→→