25
relays. The jumpers located below the relays are used to select either normally open contacts
or normally closed contacts.
Figure 10 MR-2312-R12 twelve relay adder module
6.4.2 Programming the relays
A typical relay circuit is shown in Figure 11 with the jumper locations and descriptions.
Figure 11 MR-2312-R12/MR-2306-R6 Relay programming
6.4.3 MR-2306-R6 Six Relay Adder Module
Cable from P1 of the MR-2306-R6 is connected to P6 on the Main Fire Alarm Board. The
jumpers located above each relay on the MR-2306-R6 are used to configure the relays. The
P1
Cable from MR-2312-R12 Relay Adder Module connects to P6 on Main Fire
Alarm Board.
Note: Relay programming should be done before installing the board.
NO/NC C
REL AY 1
NO/NC C
REL AY 2
NO/NC C
REL AY 3
NO/NC C
REL AY 4
C
RELAY 5
NO/NC C
RELAY 6
NO/NC C
RELAY 7
NO/NC C
RELAY 8
C
REL AY 9
NO/NC C
REL AY 10
NO/NC C
RELAY 11
NO/NC C
RELAY 12
NO/NC NO/NC
Three mounting
holes for #6-32
screws
INDIVIDUAL
GREEN RELAY
STATUS LEDs
Connect to P6 on the
main fire alarm board
NO NC
SA
Z1
1&2
NO/ NC C
RELAY 1
NC/NO CONNECTION
NC: terminal provides normally closed contacts
NO: terminal provides normally open contacts
Default: jumper is installed on normally open (NO)
Note: if the jumper is not installed on any selection
then the relay is not connected to the terminals
SUPV/ALARM SELECTION
S: Relay turns ON when common
supervisory is active
A: Relay turns ON when common
alarm is active
Default: No jumper installed,
connect ed on center pi n only
ZONE JUMPER
installed: turns ON relay when the zone
(1) is active
removed: does not turn ON the relay when
zone (1) is active
Default: Jumper is installed
LOGICAL OR WITH ADJACENT ZONE
jumper installed: this relay 1 works in
conjunction w ith relay 2
jumper removed: relay 1 does not
operate with the adjacent relay 2
chaining example: if jumper is installed
on 1&2 and 2&3 then all the three relays
will be ON if any one of relays 1,2 and 3 is
active
Default: No jumper i ns talled, connected
on one pin only
NO/ NC C
RELAY 12
RELAY
LED (G RE EN)
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