FW971 Notification Appliances – Horn

The temporal tone generated by the horn portion is designed as per ANSI and NFPA72 for standard emergency evacuation signaling requirement. 

The Horn has a built-in synchronization circuit that can synchronize multiple horn in a complete fire alarm system. There are up-to 64 Notification Appliance Circuits (NAC), networked, stand alone or interfacing with the FW951

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Technical Specifications

Operating Voltage            16 – 33 VDC/VFWR
Operating Current (mA) FW961
Sound Level 
Effective Light  50cd at default setting
Wire Size  12 – 18 AWG
Operating Temperature 0° C -49° C (32° F – 120° F) 
Operating Humidity  0 – 93% RH non-condensing
Horn Pattern Temporal tone as ANSI and 
NFPA72 Evacuation Signal pattern
Strobe Pattern 1 flash per second
Synchronization  32 NACs (Class A) or 
64 NACs (Class B)
Compatible Model FW951 Sync Module
Location  Indoor walls
Compliance UL 1971, UL 1638, UL 464
ULC S525, ULC S526

FireWatcher UL Listed FireWatcher ULC Listed