Line Separator; Internal Alarm Indicator In The Case Of Es <50; External Alarm Indicator In The Case Of Es <50 - Siemens FDOOTC241 Technical Manual

Structure and function
3
Function

3.3.4 Line separator

3.3.5 Internal alarm indicator in the case of ES <50
3.3.6 External alarm indicator in the case of ES <50
34 | 94
Building Technologies
Fire Safety
All FDnet devices are equipped with a line separator.
The FDnet device is equipped with electronic switches which isolate the defective
part in case of a short-circuit on the detector line. The rest of the detector line
remains serviceable.
On a loop line, all FDnet devices remain fully functional after a single short-circuit.
Information about the product version of your device can be found in the 'Product
version ES [ 25]' chapter.
The detector has an internal alarm indicator. The internal alarm indicator shows the
detector's operating condition.
Operating condition Flashing mode of alarm indicator
Normal Al off
Alarm AI flashes every second
Test mode Al off
Alarm in test mode AI flashes every second
The flashing behavior of the point detectors in the case of ES 50 is described in
the 'Extended flashing behavior of alarm indicators in the case of ES 50 [
chapter.
External alarm indicators (EAI) connected to the point detector display the following
behavior:
Operating condition
Alarm/Active
Alarm in test mode
The flashing behavior of the external alarm indicators for higher product versions
is described in the 'Extended flashing behavior of alarm indicators in the case of
ES 50 [ 35]' chapter.
Flashing mode of alarm indicator
EAI flashes every second
EAI flashes every second
35]'
A6V10209291_h_en_--
2016-03-03