User`s manual

VPort 251 User’s Manual System Configuration
NOTE
Once the Show alert on the image when VMD is triggered is enabled, the red frames that appear
on the homepage image indicate the size of the VMD window set up by the administrator.
Set up a VMD alarm
Setting Description Default
Window Name The name of each VMD window.
N
one
Sensitivity
The measurable difference between two
sequential images to trigger VMD. Set a
larger sensitivity to make it easier for the
VMD to be triggered.
1
Percentage
The minimum size of the image change
to trigger the VMD. Set a smaller
percentage to make it easier to trigger the
VMD.
0%
Trigger Conditions and Actions
Administrators can set up triggers for each VMD, including Trigger Relay alarm, Send snapshot
image via E-mail, Send snapshot image via FTP, and HTTP Action Settings.
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