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

3

Structure and function

Setup

3 Structure and function
3.1 Setup
3.1.1
14
Building Technologies
Fire Safety

Radio cell

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. [
7]
The radio gateway FDCW241 can communicate with the following devices:
Radio fire detector FDOOT271
Radio manual call point FDM273
MCL-USB adapter (radio) FDUZ227
The following diagram shows possible ways of integrating the radio gateway into
the fire detection system on a FDnet/C-NET detector line.
A6V10227639_e_en_--
2013-09-01