Switch Relay; Reference Area; External Contact; Direction - EverFocus EP-DMD4 Installation And Operation Instructions Manual

Digital video sensor
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6.3 Detail-Setup
Max. Break: Time within the sensor area stays inactive after exceeding the maximum
permissible number of triggered cells (Min./Max.).
Prevents repeatedly triggering after turning on room lights etc.
Switch relay: The relay of the corresponding camera channel is energized for an
alarm of the sensor area.
Note: If the area is only to trigger a pre-alarm, this function usually must be deactivated.
.. Global Relay: The global relay is energized for an alarm of the sensor area. The
function of this relay is a logical OR-function of all areas, who switch according to this
function the global relay.
.. Reference area: If an area is defined as reference area, it is evaluated with priority:
In any case, the reference area is analyzed before the other area of the channel. Where
a reference area is defined to suppress influences that make an effect to the whole pic-
ture e.g. weather influence like clouds.

External contact:

Each channel is equipped with an external input, which can be taken into account for
alarm processing.
Interpret contact:
When the option is activated, the sensor area only triggers if the external input has been
connected in the manner (normally open or normally closed) that has been defined as
„Contact is NC‟ .The external input allows several applications:
Controlling the sensor area by an automatic timer, additional combination with an IR
alarm, manual control (gate keeper) etc.
Contact is NC:
When this area parameter is activated, the sensor area only triggers if
b.) the external input has been closed (checkbox „Contact is NC‟ is active)
c.) the external input is open (checkbox „Contact is NC‟ is not active).
.. Direction: Configuring eight possible direction preferences, objects triggers only an
alarm those movement is in the selected direction. Movement in the opposite direction
will not trigger any alarms. If no direction is selected (all arrow buttons appears with red
frame), no direction filter is active and all movements could cause an alarm.

People recognition:

Each detected object of the area can be analyzed concerning to a contour of a person.
This mode should only be activated for the limited purpose of people recognition. Other
objects would not cause any alarms. The definition of the people recognition can be
done for each channel and is described in menu Expert (see page 32),
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