FireLite SLC Wiring Manual — P/N 51309:P4 9/17/2014 47
Wiring a CMF-300 Module Control Modules
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.
CMF-300
NAC
24 VDC Nonresettable power
SLC
SLC-nacY.wmf
Note: Module polarities are shown in alarm condition
NOTE: A power
supervision relay is
required only on the
last module of the
power run.
ELR
47K, 1/2-watt
24 VDC Notification
Appliances
Figure 6.2 NFPA Style Y Notification Appliance Circuit
To Next Page
Loading...
