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
+
+
1a
1b
5
6