Siemens FDSB221, Technical Manual, Page: 13 / 42

Structure and function
Overview of FDSB221
3
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Building Technologies A6V10320090_c_en_--
Fire Safety 02.11.2011
3 Structure and function
3.1 Overview of FDSB221
Overview of FDSB221
The sounder interbase FDSB221 provides an acoustic alarm in an addressed fire
detection system FS20.
The sounder interbase FDSB221 can be activated by any point detector via the
control panel.
The loud sound of the interbase can be clearly recognized as a danger signal in
the event of a fire alarm.
Eleven tones are programmed in the interbase. Two tones can be activated for
different events (e.g. alarm and evacuation).
If a point detector is not used, the cover plate FDBZ296 (accessory) can be fitted
on the interbase.
Features

Addressable on the FDnet detector loop

Communication with the control panel via the detector loop

Supply via detector loop

Compatible with all 'Sinteso' detector bases

Compatible with all 'Sinteso' point detectors

Integrated line separation function

Self test function

Yellow LED in interbase to indicate servicing required

Synchronization of sounds with all alarm sounders, interbases and audible
bases on the same detector loop

No additional detector base required