Vivotek IB8381 - Page 99

VIVOTEK
User's Manual - 99
■ Audio detection
A preset threshold can be congured with an external microphone as the trigger to system event. The
triggering condition can be an input exceeding or falling below a threshold. Audio detection can take
place as a complement to motion detection or as a method to detect activities not covered by the
camera's view.
■ Camera tampering detection
This option allows the Network Camera to trigger when the camera detects that it is being tampered
with. To enable this function, you need to enable the Tampering Detection function rst. Please refer to
page 113 for detailed information.
■ Manual Trigger
This option allows user to enable event triggers manually by clicking the on/off button on the
homepage. Please congure 1 ~ 3 events before using this function.
3. Action
Dene the actions to be performed by the Network Camera when a trigger is activated.
■ Trigger digital output for seconds
Select this option to turn on the external digital output device when a trigger is activated. Specify the
length of the trigger interval in the text box.
■ Backup media if the network is disconnected
Select this option to backup media le on SD card if the network is disconnected. This function will only
be displayed after you set up a network attached storage (NAS).