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Terminal no. Description
1 Output for detector / system power supply. Protected by 0.5A fuse Fu2.
2 GND
3 TC output for resetting local detector memories
4 Zone A1 detector input: a terminal with a series of normally closed contacts.
The other terminal must be connected to GND.
5 Zone A2 detector input: a terminal with a series of normally closed contacts.
The other terminal must be connected to GND.
6 GND
7 Zone B detector input: a terminal with a series of normally closed contacts.
The other terminal must be connected to GND.
8 Zone C detector input: a terminal with a series of normally closed contacts.
The other terminal must be connected to GND..
9 GND
10 24h line input (tamper): a terminal with a series of normally closed contacts.
The other terminal must be connected to GND.
11 Pre-alarm output: open collector 13.8V / 100mA (in short-circuit conditions), clo-
ses towards the negative for warning signals during entrance/exit.
12 Outdoor self-powered siren battery recharging.
13 GND
14 Auxiliary siren control output: contact 13.8V/1A max, connected to V+, closes for
alarm; protection from overloads by 0.5A fuse Fu1.
15 Self-powered siren control output (+denied): contact 30V/1A max, normally con-
nected to V+ (13.8V); protection from overloads by 0.5A fuse Fu1.
16 GND
17 Auxiliary alarm output (e.g. for connection to the telephone dialler): open collector,
13.8V / 100mA max. (in short-circuit conditions) closes towards the negative for
alarm
18 "Low battery" output: open collector 13.8V/100mA max. (in short-circuit condi-
tions), closes towards the negative when battery voltage is less than (11+/-0.5)V.
19-20-21 Serial line for connection to the remote activation point (terminals: 19 negative
power, 20 serial signal and 21 positive power).
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