Wiring a CMF-300 Module
6.3 Wiring a CMF-300 Module
This section contains instructions and diagrams for wiring a Signaling Line Circuit with a
CMF-300 as a Notification Appliance Circuit (NAC).
6.3.1 Wiring a Style Y NAC (Two-Wire) with Addressable Control
Modules
A supervised and power-limited NFPA Style Y (Class B) NAC using a CMF-300 module. Polar-
ized alarm notification appliances are shown connected to the module in a two-wire configuration.
Refer to the Device Compatibility Document for compatible notification appliances and relays.
•
See "Power Considerations" on page 68 for information on monitoring 24 VDC power.
•
Each module can control 2 amps of resistive load (on electronic devices) or 1 amp of inductive
load (on mechanical bells and horns).
•
24 VDC power must be provided from a UL listed power supply for fire protection use.
•
A power supervision relay is required only on the last module of the power run.
•
Do not T-tap or branch a Style Y circuit.
•
Terminate the circuit across the last device using an End-of-Line Resistor 47K, 1/2-watt,
P/N SSD A2143-00 (ELR-47K in Canada).
•
Do not loop wiring under the screw terminals of any notification appliance. To maintain
supervision, break the wire run at each device.
24 VDC Nonresettable power
ELR
24 VDC Notification
47K, 1/2-watt
NAC
Note: Module polarities are shown in alarm condition
FireLite SLC Wiring Manual — P/N 51309:P4 9/17/2014
Appliances
Figure 6.2 NFPA Style Y Notification Appliance Circuit
SLC
CMF-300
Control Modules
NOTE: A power
supervision relay is
required only on the
last module of the
power run.
47