Setup and function
Function
3
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Building Technologies
009757_f_en_--
Fire Safety
2016-08-23
FDM225 and FDM226
The LED indicator of the alarm indicator has the following meanings:
LED indication
Meaning
Off
Normal condition
Red
Flashes brightly once per
second
Localization is active
o r
Alarm is triggered
Red
Flashes weakly twice per
second
Test mode is active
Red
Flashes twice per second,
alternately weakly and brightly
Alarm is triggered/localization is active
a n d
Test mode is active
See also
3.3.3 Line separator
All FDnet/C-NET devices are equipped with a line separator.
The FDnet/C-NET device is equipped with electronic switches which isolate the
defective part in case of a short-circuit on the FDnet/C-NET detector line. The rest
of the detector line remains serviceable. On a loop line, all FDnet/C-NET devices
remain fully functional after a single short-circuit.
3.3.4 Test mode
The manual call points can also be tested with the key.
A test mode must be set on the control panel to test the manual call points. When
in test mode, alarms from the manual call points are not forwarded by the control
panel.
See also
3.3.5 Interface to service devices
A proximity interface (MC link) is available for commissioning and maintenance in
order to communicate with the detector exchanger and tester FDUD292 and the
intelligent detector tester FDUD293.
You will find more information in documents 007227 and 009718.
