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Function; Overview - Siemens FDCW221 Technical Manual

Radio gateway.
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Function

5
Function
5.1

Overview

16
Building Technologies
Fire Safety & Security Systems
The FDCW221 communicates with the control panel via the FDnet detector line.
The coverage range of the radio signal is up to 40 m in buildings and strongly
depends on materials and equipment.
When radio cells overlap, the maximum number of radio gateways is limited to 16
radio gateways or radio cells, respectively, due to the limited number of channels.
Without an overlapping of radio cells, the maximum address connection factor of
the FDnet detecto line limits the number of connectable devices (radio gateways,
detectors).
At maximum 30 radio detectors can be connected to one radio gateway. Each
radio detector has its own address. The radio gateway always occupies two
addresses.
Two radio cells on the FDnet
Fig. 5
Legend
1
Control panel
2
FDnet detector line
3
Radio cells
009865_b_en_--.doc
11.2007

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