Structure And Function; Setup; Radio Cell - Siemens FDCW241 Technical Manual

3 Structure and function

3.1 Setup

3.1.1 Radio cell

Building Technologies
Fire Safety
The radio gateway forms a radio cell together with the radio devices that are
connected via radio.
The radio gateway is used to monitor signals from radio devices and transfer them
to a fire control panel via the detector line.
The radio gateway communicates with the control panel via the detector line.
Power is supplied via the detector line and via a battery pack. This ensures a
permanent power supply for the radio gateway.
The areas that radio cells cover may overlap. The radio cell may take the following
formats:
Loop with a maximum of 32 addresses (30 addresses for radio devices and
2 addresses for the radio gateway)
or
Stub with a maximum of 32 addresses (30 addresses for radio devices and
2 addresses for the radio gateway)
Observe the country-specific regulations relating to the permitted number of
devices. The radio gateway always occupies two addresses. You will find the
performance characteristics in documents A6V10227631 and A6V10271323
The radio gateway FDCW241 can communicate with the following devices:
Radio fire detector FDOOT271
Radio manual call point FDM273
Radio manual call point FDM275
Radio manual call point FDM275(F)
Structure and function
Setup
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2016-11-28
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