VIVOTEK
72 - User's Manual
An event is an action initiated by a user-defined trigger source; it is the causal arrangement of the
following three elements: Trigger, Event Schedule, and Action.
Trigger
This is the cause or stimulus which denes when to trigger the video server. The trigger source can be
congured to use the video server’s built-in motion detection mechanism or external digital input devices.
There are several choices of trigger sources as shown below.
Select the item to display the detailed
conguration options.
■ Video motion detection
This option makes use of the built-in motion detection mechanism as a trigger source. To enable this
function, you need to congure a Motion Detection Window rst. For more information, please refer to
Motion Detection on page 59 for details.
■ Periodically
This option allows the video server to trigger periodically for every other dened minute. Up to 999
minutes are allowed.
■ Digital input
This option allows the video server to use an external digital input device or sensor as a trigger source.
Depending on your application, there are many choices of digital input devices on the market which
helps to detect changes in temperature, vibration, sound, and light, etc.
■ System boot
This option triggers the video server when the power to the video server is disconnected.
■ Recording notify
This option allows the video server to trigger when the recording disk is full or when recording starts to
rewrite older data.