Signaling Formats For The 400Em (Tie Trunk) - AT&T MERLIN LEGEND Release 3.1 Installation Manual

Installing the Modules
NOTE:
DIP switches 1, 2, 6 and 7 determine whether the tie trunks are protected or
unprotected. DIP switches 3, 4, 5, 8, 9, and 10 determine the mode. Simplex
mode is always protected. Therefore the Protected/Unprotected settings for
DIP switches 1, 2, 6 and 7 have no effect.
The successful implementation of a tie trunk format is dependent upon
matching the characteristics of both the PBX systems it connects. The
preferred signaling formats for a tie trunk originating in the system are shown
in Table 2–5 below.
Table 2–5. Signaling Formats for the 400EM (Tie Trunk) Module
Installation Situation
From System
Distant
To Location
MERLIN II Same site
co-located
System Same site
25/75/85 co-located
or DEFINITY
System Inter-office
25/75/85
or DEFINITY
Dimension PBX Same site
co-located
Dimension PBX Inter-office
Other Systems Same site
co-located
Other Systems Inter-office
MERLIN Same site
LEGEND co-located
or inter-office
2–36
Installing the Control Unit
Preferred Signaling Format
System
Signaling Protected or
Mode/Type Unprotected
Type 5 Simplex N/A
Type 5 Simplex N/A
Type 5 Simplex N/A
E&M Type 1C Unprotected E&M Type 1S
(Compatible)
E&M Type 1C Protected
(Compatible)
E&M Type 1C Unprotected E&M Type 1S
(Compatible)
E&M Type 1C Unprotected E&M Type 1S
(Compatible)
Type 5 Simplex N/A
Distant Location
Signaling Protected or
Mode/Type Unprotected
Type 5 Simplex N/A
Type 5 Simplex N/A
Type 5 Simplex N/A
Unprotected
(Standard)
E&M Type 1S Protected
(Standard)
Unprotected
(Standard)
Requires a
(Standard) protection unit
Type 5 Simplex N/A