Steren ALA-007 Manual De Instrucciones página 31

When the cover is opened, the circuit
is opened and the sensor sends an
alarm signal to the control panel.
ALARM: This is an output relay con-
tact for detector. You can select with a
jumper if the output is normally closed
(NC) or normally open (NO) according
to requirements of the alarm's control
panel.
NOTE: The ALARM contact is not
energized normally. It can operate a relay
but cannot power a device.
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