Structure And Function - Siemens FDCW221 Technical Manual

Structure and function

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3 Structure and function
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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
009865_m_en_--
2015-11-06