Alarm in, Alarm out – ARM Electronics DVRHD OSD User Manual
Page 47

OSD Setup Manual
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Sensitivity
This item is used to set the sensitivity of detection grids for the camera. A
greater value indicates more sensitive motion detection. A motion alarm
will be triggered once the amount of motion detected exceeds the
Threshold value.
Move the cursor to <Sensitivity> and press ENTER, and then use UP/
DOWN keys to adjust the value. The value is increased by 4% increment.
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Block Threshold
<Block Threshold> indicates the motion alarm triggered level; select from
<1> to <16>. Selecting <1> means the DVR will trigger the alarm when
one grid is detected; and selecting <16> means the DVR will trigger the
alarm when 16 grids are detected. Move the cursor to <Block Threshold>
and press ENTER, and then use UP / DOWN keys to adjust the value.
Alarm In
This item allows users to enable/ disable alarm input detection. According to users’
application, select <N/O> (Normal Open) or <N/C> (Normal Close) to enable the
alarm input detection, or select <OFF> to disable the detection.
If <N/C> is selected without installing any device, an alarm will be triggered and the
Event Icon will always display on the monitor until the selection is changed to
<N/O> or <OFF>, or when a device is installed.
Alarm Out
This item allows users to enable / disable the alarm output on the selected channel
to activate the relay. The signal can be a light or siren to caution an alarm event.
Select <ON> to enable the alarm output, or <OFF> to disable.