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DVS-301 User Manual v1.00
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conditions are matched, Video Servers will capture three stages of events and react based on
the "Trigger action" settings. The post-event snapshot can be configured to be delayed after
events happen according to the setting in "Take snapshot at seconds after event". The three
stages of snapshots will be VPRE.JPG, VTRG.JPG and VPOS.JPG. Since the same event may
exist for a while, administrators can set delay time in "Delay seconds before detecting next
event" to reduce multiple triggers by the same event.
There are two kinds of "Trigger condition". For digital input there are four options provided to
combine with the user's device. Rising and falling will make events happen once. For motion
detection, there are window names shown below as choices. Refer to the previous section for
configuring motion detection. Note that larger object size and lower sensitivity will make it more
difficult for Video Server to detect varied images. Once the "Trigger condition" is matched,
Video Server will drive the digital output device and/or upload snapshots based on the "Trigger
action" settings. The application settings should be carefully examined to operate accurately. If
administrators are not sure of the digital output status before configuring applications, "Reset
output" can be used to return the digital output to the default “Normal Close” state.