MKT. #8830003 - REV A
3/11
PRINTED IN USA
PAGE 2 OF 3
MOM-4
MOnitOred Output MOdule
When connecting the above-described module-to-module for NAC synchronization:
The interconnection between equipment shall be within a common enclosure.
1.
The circuit connections extended to additional fire alarm control unit equipment shall be made within 20 feet(6.1m) of each other and be
2.
enclosed within conduit or equivalently protected against mechanical injury.
When NACs are connected to MOM-4 module, each MOM-4 module shall be separated by short circuit isolators (SCI) to avoid influence from
a short-circuit of the SLC Signal Line Circuit.
Connection as a Releasing Module
In the case of using a solenoid valve of NN100 system, connect wires to wiring cable #1 and #3 of the valve, and the soak time setting of
•
the relevant address shall be configured as “5” seconds on the program.
Only one Releasing Device can be connected per MOM-4 module.
•
The Manual Release Function immediately activates the Suppression System in the same zone. It overrides Delay Time and Abort Func-
•
tions for that zone.
Figure 3: Output Connected to a Releasing Device
Releasing Device
S+
S-
OUT+
LED
JP1
SLC Loop
End of line device
5.1k ohm 1/2W
Select DC
24VDC(+)
24VDC(- )
24VDC(+)
24VDC(- )
From FACP or
previous module
To the next module
24+
24-
OUT-
From FACP or
previous module
To the next module
S+
S-
OUT+
LED
JP1
SLC Loop
+
-
+
-
+
-
End of line resistor
5.1k ohm 1/2W
Select DC
24VDC(+)
24VDC(- )
24VDC(+)
24VDC(- )
From FACP or
previous module
To the next module
24+
24-
OUT-
From FACP or
previous module
To the next module
Before connecting an output device, connect the module to the SLC
loop and reset it with the FACP. This is necessary to ensure that the
internal relay is unlatched. Connection of the module with this relay
in the latched state will activate the output device possibly causing
damage.
Wiring diagram
The following modules can be used when the NACs are synchronized:
SM-12/24 (Wheelock)
•
DSM-12/24 (Wheelock)
•
SMD10-3A (Amseco)
•
Note: Refer to respective Module manuals about connection method, connectable NACs
Figure 2: Output Connected to a Notification Appliance Circuit
