Signaling Formats For The 400Em (Tie Trunk) Module - AT&T MERLIN LEGEND Release 3.0 Installation Manual

Installing the Modules
NOTE:
DIP switches 1, 2, 6 and 7
unprotected. DIP switches
mode is always protected.
DIP switches 1, 2, 6 and 7
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
Location
T o
MERLIN II
Same site
co-located
System
Same site
25/75/85 co-located
or DEFINITY
Inter-office
System
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
determine whether the tie trunks are protected or
3, 4, 5, 8, 9, and 10 determine the mode. Simplex
Therefore the Protected/Unprotected settings for
have no effect.
Preferred Signaling Format
System
Signaling Protected or Signaling
Mode/Type Unprotected Mode/Type
Type 5 Simplex N/A
Type 5 Simplex N/A
Type 5 Simplex N/A
E&M Type 1 C Unprotected
(Compatible)
E&M Type 1C Protected
(Compatible)
Unprotected
E&M Type 1 C
(Compatible)
Unprotected
E&M Type 1 C
(Compatible)
Type 5 Simplex N/A
Distant Location
Protected or
Unprotected
Type 5 Simplex N/A
Type 5 Simplex N/A
Type 5 Simplex N/A
E&M Type 1 S Unprotected
(Standard)
E&M Type 1 S
Protected
(Standard)
E&M Type 1S Unprotected
(Standard)
E&M Type 1 S Requires a
(Standard) protection unit
Type 5 Simplex N/A