Installation and Programming Manual
Installation
31
3-5-2
Single balancing
Single zones can discriminate 3 conditions on the entire terminal:
•
standby
•
alarm
•
tamper (short-circuit)
For each of these, the control panel reads different resistance values on
the terminal, expressed below in Ohm.
If you wish the detector to signal tamper events, connect the detector
“Tamper” terminal to a “24h” zone on the control panel.
3-5-3
Double balancing
Double balancing discriminates 4 distinct conditions on the zone terminal:
•
standby
•
alarm
•
tamper (short-circuit)
•
tamper (wire cutting)
For each of these, the control panel reads different resistance values on
the terminal, expressed below in Ohm.
3-5-4
Double-Zone balancing
Double zones without EOL resistor can discriminate 5 conditions on the
entire terminal:
•
standby on both zones
•
alarm on zone 1 and standby on zone 2
•
alarm on zone 2 and standby on zone 1
•
alarm on both zones
•
tamper (wire cutting)
For each of these, the control panel reads different resistance values on
the terminal, expressed below in Ohm.
W
Zone
> 6800
alarm
6800
standby
0
tamper
Alarm
+12V GND
Tamper
6K8
W
W
1/4W
W
W
Zone
> 6800
tamper (wire cutting)
6800
alarm
6800 / 2
standby
0
tamper (short-circuit)
Alarm
+12V GND
Tampe
r
6K8
W
W
1/4W
W
Zone 1
Zone 2
(double)
> 3900 + 6800
tamper
3900 + 6800
alarm
alarm
6800
standby
alarm
3900
alarm
standby
0
standby
standby
Alarm
+
12V G
N
D
Tamper
Alarm
+
12V G
N
D
Tamper
3K9
W
W
1/4W
6K8
W
1/4W
Zone 1
Zone 2
