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Structure And Function - Siemens FDCW221 Technical Manual

Radio gateway, radio smoke detector, manual call point, radio base.
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Structure and function

Release Notes
3 Structure and function
18 | 82
Building Technologies
Fire Safety
The radio gateway FDCW221 is used to monitor signals from radio detectors and
to transfer them via the FDnet to a fire control panel.
The radio gateway is operated on the FDnet. All devices which can be monitored
by the radio gateway are collectively known as a 'radio detectors'.
The FDCW221 radio gateway can communicate with the following radio detectors:
DOW1171 radio smoke detector
Manual call point SMF121 with radio base SMF6120
The unit, comprising radio gateway and the radio detectors logged onto it, forms a
radio cell.
The following diagram shows how the radio gateway is integrated in the fire
detection via the FDnet.
Radio gateway on FDnet with radio detectors
Features of the radio gateway FDCW221
Compatible with the FDnet-compatible fire detection systems FS20, AlgoRex
and Sigmasys
Simultaneous operation of wired fire detectors on FDnet and wireless radio
detectors on radio gateway
High signaling security
Automatic definition of optimum basic and deviating radio channels
Automatic channel change in the event of radio problems
Individual addressing for simple site identification
Up to 16 radio gateways can be operated with radio cell overlapping
Up to 30 radio detectors can be activated per radio gateway
Low current consumption, battery only needs replacing every 5 years


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