White Conventional Siren, Tube mounting Recessed – FNM-320-FWH Bosch
white conventional siren, recessed tube mounting.
The FNM-320 sirens are acoustic signaling devices with an acoustic transducer.
The integrated sound transducer offers a choice of 32 shade variants, including different siren tones, various fire alarm signals (for instance, DIN pitch according to EN 457 / FROM 33404) and other special modulations.
The tones are configured by means of a DIP switch of 5 pins on signaling device.
With a selected tone type, activation of a second input turns on the second type of tone.
An additional switch provides two adjustment: full output or with an attenuation of 10 dB(A).
Depending on the type of tone, the set volume and operating voltage, the sound pressure varies up to a maximum of 112 dB(A).
Controlled connection to fire panels is allowed. Bayonet lock makes mounting easy.
