Security-Center FU2938 Instructions D'installation page 17

Wiring of compact alarm FU2938 (Standard)
Battery connection
When delivered, the internal battery is not connected. Connect the black
lead to the minus pole of the battery and red lead to the plus pole of the
battery.
Connecting the power supply
Connect the [+12V] and [GND] inputs with the 12V DC voltage supply.
Connecting alarm siren + strobe
1. The siren and the strobe are each activated by the presence of a
0V ground potential.
2. To trigger the strobe, connect the [Strobe Trig] input with an output
of your alarm centre. Since the strobe is activated by connecting a
ground potential, you can also control the strobe via a transistor
output of your alarm centre that switches to 0V in case of an alarm.
3. To trigger the siren, connect the [Siren Trig] input with an output of
your alarm centre. Since the siren is activated by connecting a
ground potential, you can also control the siren via a transistor
output of your alarm centre that switches to 0V in case of an alarm.
4. Note: Since the compact alarm has an automatic deactivation of
the acoustic alarm, [Strob Trig] and [Siren Trig] can also be
addressed via an output of the alarm centre.
Visual set acknowledgement
To enable optical signalling of alarm setting, the strobe is activated 3–5
times if the output of your alarm centre has the "active acknowledgement"
property.
Connecting the tamper output of the compact alarm
Connect the [Tamper] output with the tamper line of your alarm centre.
Connecting the battery fault output of the compact alarm
Connect the [BATT] output with a zone of your alarm centre.
Remarks
Use only shielded and grounded cables (AZ6360 or AZ6361).
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