Vivotek SD8111 User Manual page 75

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 defines when to trigger the Network Camera. The trigger source can
be configured to use the Network Camera'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
configuration 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 configure a Motion Detection Window first. For more information, please refer to
Motion Detection on page 64 for details.
■ Periodically
This option allows the Network Camera to trigger periodically for every other defined minute. Up to 999
minutes are allowed.
■ Digital input
This option allows the Network Camera 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.
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User's Manual - 75