Installation guide

107
NV1
Installation Guide
107
Masked Cam Detection
Note: Greyed menu option will be available if the mode is changed from Console to DVR
or Encoder, they are not available in the Console conguration. They are included for
reference only.
The unit has the capability to identify if a video input has been covered (by hand, spray paint, etc.)
to prevent video images being viewed and recorded. The Camera Masking option identies normal
levels of contrast and uses them as a base line. It then compares these against a user dened
minimum contrast level. If the video input goes below this user dened level an event is generated
on the unit.
Simple Activation
Simple/Zone Activation Select from ‘Simple’ or ‘Zone’ Activation. When ‘Zone Activation’
is selected, specic zone actions can be initiated on masking/
unmasking. Select Zone Activation for further options.
Camera Displays the camera number and camera title as congured on
the Camera Setup page.
On Enables or disables the feature on the camera.
Dwell This is the delay the unit will wait before declaring the camera is
masked.
Threshold Denes the threshold the system uses to dene that a camera is
masked.