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MERLIN LEGEND Communications System Release 6.1
Installation
555-661-140
Issue 1
August 1998
Installing the Control Unit
Page 2-36
Installing the Modules
■ E&M Mode
— Type 1 Standard (default factory setting). This setting is
used to connect two systems through local telephone
company facilities.
— Type 1 Compatible. This setting connects two systems
directly (without using local telephone company facilities).
■ Simplex Mode
— Type 5. This setting is used on 4-wire (2-pair) circuits.
400EM (Tie Trunk) Module DIP Switches
During installation of 400EM (Tie Trunk) modules, refer to Table 2–4 and
Table 2–5, and to Figure 2-11 on page 2-38
for the correct DIP switch
settings for varying signaling protocols.
Table 2-4. Setting the 400EM (Tie Trunk) Module DIP Switches
Ports DIP Signaling Type
(as numbered in
Figure 2-11)
Switch
Position
1S (Default)
and 1C
Unprotected
E&M Mode
1C and 1S
Protected
E&M Mode
5
Simplex
Mode
24
1 ON OFF OFF or ON
2 ON OFF OFF or ON
3OFF OFF ON
4OFF OFF ON
5OFF OFF ON
13
6 ON OFF OFF or ON
7 ON OFF OFF or ON
8OFF OFF ON
9OFF OFF ON
10 OFF OFF ON