This device is a key component in the fire emergency broadcasting system, playing a vital role in fire - related evacuation and fire - fighting command within the overall fire control and management system. In the event of a fire, the emergency broadcast signal is generated from the sound source equipment, amplified in power, and then switched by the coded output control module to the speakers in the designated broadcast area, thereby enabling emergency broadcasting.
Technical Specifications
Input Voltage: 120V
Impedance: 4.8KΩ
Terminal Resistance: 1MΩ
Capacitance: 0.1μF
Sound Pressure Level: ≥75dB (3 meters in front of the speaker)
Rated Power: 3W
Total Weight: 300g
Dimensions: φ184±1×62±1mm
Cylinder Height: 51±1
Hole Diameter: φ135 - φ140mm