User`s manual

VPort 251 User’s Manual System Configuration
How to Set up a VMD alarm
Step 1: Check the Enable VMD alarm box. If the Administrator wants to show the red frame
alert on the image on the VPort 251’s web homepage, check the Show alert on the
image when VMD is triggered box. Click on the Save button to save these 2
configurations.
Step 2: Check on VMD1~3 to enable the VMD window. Left click the title bar of this window
to move the location of the VMD window, or drag the border to change the window size
so that it fits the desired VMD area.
Step 3: Assign a name to the VMD window in the Window Name column.
Step 4: Set up the Percentage parameters for individual VMD windows and the Sensitivity for
all VMD windows.
Step 5: Click on the Save button to save the settings.
Step 6: To test the VMD condition, check the action of the graphics bar on the left side of the
save button. Wave your hand in front of the camera, in the VMD area, and then note
which color shows up in the graphics bar. Green means VMD is not triggered. Red
means VMD is triggered.
Step 7: Set up the Trigger Conditions and Actions of each VMD, and then click on the Save
button to save these configurations.
NOTE
Video Motion detection is provided as a reference because it is environment-dependent. When
the settings are configured to be very sensitive to motion, some triggered events might actually
be false alarms, since in fact there is only a tiny difference between sequential images. False
alarms can be triggered by the flashing of florescent lights, shifting of shadows, etc.
Digital Input
One digital input is provided by the VPort 251 for linking with alarm detection devices, such as
sensor.
Setting Description Default
Enable digital input
alarm
Enable or disable the digital input alarm. Disable
Trigger Conditions
Setting Description Default
High
The DI is always in the “High” state after
an alarm is detected.
Disable
Low
The DI is always in the “Low” state after
an alarm is detected.
Enable
Rising
The DI works from state “Low” to state
“High” and then back to state “Low”
when an alarm is detected.
Disable
Falling
The DI works from state “High” to state
“Low” and then back to state “High”
when an alarm is detected.
Disable
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