Specifications

Cable and Jumper Connections for Main Board and Adder Modules
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MR-2300-NC2 Output Class-A Converter Adder Module
Figure 5: MR-2300-NC2 Output Class-A Converter Adder Module
Indicating circuits must be wired from the MR-2300-NC2 to the main Fire Alarm board. For example indicating circuit
1 positive (red wire) and negative (black wire) is wired from the Class A converter module to the positive and
negative terminals of Indicating circuit 1 on the Main Fire Alarm board.
The actual indicating zone is wired from the SIGNAL OUT positive and negative to the signaling devices and then
wired back to the SIGNAL RET positive and negative.
Relay Adder Module
Cable from P1 of the MR-2306-R6 is connected to P4 on the Main Fire Alarm Board. The jumpers located above
each relay on the MR-2306-R6 are used to configure the relays. The jumpers located below the relays are used to
select either normally open contacts or normally closed contacts.
Figure 6: MR-2306-R6 six relay adder module
P1: Cable from MR-2306-R6 Relay Adder Module connects to P4 on Main Fire Alarm Board.
The correlation of the relays are fixed and is as follows:
Relay1 Relay2 Relay3 Relay4 Relay5 Relay6
Active State
Hazard 1
Alert
Hazard 1
Alarm
Hazard 1
Release
Hazard 2
Alert
Hazard 2
Alarm
Hazard 2
Release
- SI G1 OUT +- SI G2 OUT+ - SIG1 RET+- SIG2 RET+
BLK RED
BLK RED
mounting hole for
#6-32 screws
OCAC -302
mounting hole for
#6-32 screws
MR-2300-NC2
NO/ NC C
RELAY 1
NO/ NC C
RELAY 2
NO/ NC C
RELAY 3
NO/ NC C
RELAY 4
C
RELAY 5
NO/ NC C
RELAY 6
NO/ NC
mounting hole
for #6-32 screws
mounting hole
for #6-32 screws
INDIVIDUAL GREEN
RELAY STATUS LEDs
Connect to P6 on the
main fire alarm board
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