User`s manual

VPort 2141 Video Encoder User’s Manual System Configuration
4-15
ATTENTION
The motion detection function is dependent on the environment. When the settings are
configured to be very sensitive to motion, some triggered events might be false alarms, since
there could be small differences between sequential images of the same scene. In addition, the
motion detection alarm could be triggered by the flashing of florescent lights, shifting of
shadows due to changes in the lighting conditions, etc.
Privacy Mask
Five private mask areas can be set up for each camera. The areas appear as filled rectangles (with
fill color set to black) to hide the privacy of objects in that region. A privacy mask window is set
up in the same way as a motion detection window.
Before completing the Video configuration, you should check the Modulation, Default Video
Source, and Bandwidth Limit, as described next.
Modulation
There are 3 types of Modulation. Administrators can set the auto-detected condition during
initialization by selecting Auto, but can still set it manually by selecting NTSC or PAL. When
you change the camera modulation, a warning message will pop up to inform you that the system
will restart to validate the new modulation.
ATTENTION
In general, analog cameras support one of two different standards, NTSC or PAL. However, all
of the cameras connected to the VPort 2141 video encoder should use the same standard.
Default Video Source
Administrators can set the default viewing mode for home page to camera 1, 2, 3, or 4, or show all
images with quad mode.