smartvue S9C1 - Page 85

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Trigger
This is the cause or stimulus which denes when to trigger the Network Camera. The trigger
source can be congured 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 conguration 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 congure a Motion Detection Window rst. For more
information, please refer to Motion Detection on page 75 for details.
■ Periodically
This option allows the Network Camera to trigger periodically for every other dened 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.
■ System boot
This option triggers the Network Camera when the power to the Network Camera is
disconnected.