This 150 W AT-FR rack type fire emergency broadcasting panel is installed in a 19 inch cabinet and works together with fire alarm linkage controllers, output modules, constant-voltage loudspeakers and optional expansion power amplifiers.
When the fire linkage controller sends a 24 V start signal, the panel automatically switches to emergency broadcasting and plays pre-recorded fire messages or live MIC paging, guiding occupants to evacuate safely. It is suitable for small to medium fire zones in office buildings, shops, small factories, schools and similar projects.
Rack type 1U fire emergency voice control panel, 150 W output
120 VAC constant-voltage speaker line, suitable for standard fire speakers
Four broadcasting modes: EMER Radio, MIC paging, USB (U-disk) and AUX audio input
One emergency audio source can be imported via microphone or U-disk (up to 30 s)
30-minute loop recording of events and broadcasts
Fault detection for constant-voltage speaker line, main power and standby power with sound and light alarms
Overload protection: output voltage reduction under minor overload and automatic shutdown under severe overload
Optional communication module for connection with fire linkage controllers
Natural cooling design for reliable operation without additional fans
Can be connected to expansion power amplifiers through signal port for future system upgrade
Working Environment
Ambient temperature: 0 °C to 40 °C
Relative humidity: ≤ 95% RH, non-condensing
Electrical
Mains input: AC 187 V to AC 242 V
Speaker output: 120 VAC constant-voltage line
Rated output power: 150 W
Approx. rated output current: 1.25 A
Frequency response: 80 Hz to 8 kHz (±3 dB)
Harmonic distortion: ≤ 5%
Signal-to-noise ratio: ≥ 70 dB
Recording
Recording time: 30 minutes loop recording
Mechanical
Installation: 19" cabinet, 1U panel type
Dimensions: 482.6 mm × 188.0 mm × 44.0 mm
188.0 mm includes the transmitter thickness (about 39 mm)
Wiring and Interfaces
Speaker line: twisted pair cable, cross-section ≥ 1.5 mm², insulation to ground > 20 MΩ; use 120 V constant-voltage speakers with internal DC isolation capacitor (1 µF / 250 V)
[Main Power]: connect to fire-fighting AC 220 V power supply
[Backup Power]: connect to standby fire-fighting AC 220 V supply
[Output]: connect to constant-voltage speaker circuits
[Emergency]: 24 V start signal from fire alarm linkage controller
[Signal Port]: connect to expansion power amplifier (rack type)
[MIC]: microphone input for MIC broadcasting and recording
[AUX]: 3.5 mm audio input for external audio source
[USB]: U-disk (USB 2.0) for MP3 playback and emergency audio import
