Structure and function
Structure of the radio gateway FDCW221
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Building Technologies
009865_m_en_--
Fire Safety
2015-11-06
Characteristics of the radio module:
●
4 alternative channels are assigned to each of the 16 basic channels
(5 x 16 = 80 different channels)
– If there is a problem with the basic channel, this is detected right away. If
this happens, the frequency automatically changes channel up to four
times.
●
Communication faults between the gateway and the detectors are detected and
displayed within 300 s. Alarms are transferred immediately.
●
If a detector cannot directly reach the gateway and the contact is interrupted, a
diversion mechanism is activated. The bidirectional contact between the
detector and the gateway then takes place via a neighboring detector of the
same radio cell.
If the problem persists for a long time, the diversion is displayed as a fault
within 300 s, like other communication faults.
3.1.5 Reed contact and button
The Reed contact is an extra operating element which can be used to perform
some of the functions of the button when the housing cover is closed.
Generally when commissioning, the Reed contact can also be activated with a
magnet rather than the button. Activation of the Reed contact then equates to
briefly pressing the button.
The Reed contact is activated by slowly pulling (approx. one second) along the
length of the Reed contact with a magnet.
See also
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2
Status display on the radio gateway FDCW221 [
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3.1.6 Scope of delivery
The radio gateway is supplied with the following accessories:
●
1x battery connection cable (with 9 V battery clip and PCB plug)
●
2x cable ties (3.7 x 208 mm) for cable strain relief
Batteries are not included in the scope of delivery. Batteries are always needed to
commission and operate the radio gateway.
See also
2
2
