Functional Features：

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Used in conjunction with the HY6311 bus based fire alarm telephone dispatch switchboard. When an emergency occurs, remove the telephone handle and call the fire telephone switchboard. The dip switch of this machine is pre-set with a 7-digit code, with an effective code range of 1-99. When this machine receives a call from the switchboard, it automatically rings. When the machine is in normal monitoring mode, the working indicator light flashes to indicate normal operation. The code can be set during installation according to engineering needs.

Technical Parameter：

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Environmental temperature: -10~55 ℃
Relative humidity: ≤ 95%
Atmospheric pressure: 86-106kPa
Environmental noise: ≤ 60dB
Frequency response: 300-3400Hz
Ringing sound level: ≥ 70dB
Power consumption in standby mode:<1mA
Power consumption during call status:<22mA
Product: L210mm × W80mm × H40mm (including handle)
Weight: 365g (including packaging box)
Installation hole spacing: 135mm