30
Module Settings
7.2 Main Fire Alarm Super Module (MD-757 Part of “S” Version
Main Chassis)
This super main board does not have any addressable loops on it. For an addressable loop,
adder boards are required.
TO CONFIGURE THE FIRE ALARM PANEL USE THE RS-485 CONNECTOR P4 OF THE
LAST ADDER LOOP CONTROLLER MODULE INSTALLED.
Figure 15 Main Fire Alarm Super Module (MD-757 Part of “S” Version Main Chassis)
JW1 Remove jumper if a PR-300 or UDACT-300A is installed.
JW2 to JW4 Jumpers are factory set and should not be changed.
P3 Black RS-485 Connector connects to the Adder Loop ALC-198S,
ALC-396S or ALC-H16 if used (Address Loops 3, 4, etc)
P4 Connector for PR-300 module or UDACT-300A.
NO HARDWIRE CIRCUIT ADDER MODULES ARE CONNECTED TO
THIS MAIN FIRE ALARM SUPER MODULE
P7 White BDM Connector for factory use only.
P8 Power Connector for Adder Modules.
P9 RS-232C for printer or CRT monitor.
P10, P11 Factory connection to bridge rectifier.
P12, P13 Connection to 24VDC battery. Observe correct polarity
P14 Connector for display module.
F1 20 Amp slow blow non-replaceable fuse.
Note: To enable communication from the Main Module to all of the Adder Modules, it is
necessary to add a Continuity Jumper on the last Adder Module in a chain (see
the appropriate Module Settings section to verify the location of the Continuity
Jumper on a particular Circuit Adder Module). Only the last circuit adder module
should have a jumper plug on its continuity jumper; all others must be left without
a jumper plug.
MAIN FIRE ALARM SUPER BOARD
FIELD WIRING TERMINALS
P9
P8
F1
P 10 P1 1 P12 P13
+BDG- +BAT-
P7
JW1
P4
JW4
P14
P3
JW2
JW3
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