Siemens FC122-ZA - Short = Alarm

25
Smart Infrastructure A6V10393190_h_en_--
2019-09-01
4.3.4 Short = alarm
This line supports a mixture of detectors and MCPs within the same zone.
In addition, this line supports devices with a closed contact for alarm.
Only automatic fire detectors can be switched off. Manual call points with the alarm
criterion 'Short = Alarm' are always switched on and cannot be switched off.
Technical:
- Short in the line is detected as an alarm and not as a fault.
- Max.32 devices on each line.
- Each line must be terminated with EOL element Transzorb diode (18 V TVS).
- Does not fulfill EN 54-2.
Programming:
- Configure g Zone g Zone 1-n g Mode g Short = alarm
Zone mode 'Short = alarm' does NOT comply with EN 54-2 and EN 54-13.
Special detectors FDOOT241-9, OOH740, FDF221-9, FDF241-9, FDL241-9 NOT
compatible with the zone mode 'Short = alarm'.
Even if a zone
is switched off, a short
is evaluated as an alarm.
ZONE1
. . . . . .
ZONE n
–
+
–
+
–
+
EOL
+
+
1
a
1
b
5
6