FNM-420A-BS-RD
The device allows to select 32 types of alarm and evacuation tones (including DIN tone 33404, part 3) for different requirements. You can adjust the sound pressure by five levels according to the operational environment. Depending on the tone type and volume set, the sound pressure varies between 65 dB(A) and 92.1 dB(A). Sounders of the same LSN loop and with the same tone type provide immediate synchronization. The device maintains LSN loop functions in the event of wire interruption or short-circuit thanks to two integrated isolators. Change of the device settings can be done in the FSP-5000-RPS programming software.
