Vivotek FD8335H User Manual download pdf (Page 108)

VIVOTEK

108 - User's Manual

Applications > DI and DO

Connect DI or DO devices to the camera's terminal block, the camera will automatically detect

the current connection state as pulled-high or pulled-low� You may then define the triggering

condition�

Digital input: Select High or Low to dene the "active state" for the digital input. The Network

Camera will report the current status�

Digital output: Select Grounded or Open to dene the "active state" for the digital output. The

Network Camera will show whether the trigger is activated or not�

Applications > Tampering detection

This section explains how to set up camera tamper detection� With tamper detection, the

camera is capable of detecting incidents such as redirection, blocking or defocusing, or even

spray paint�

Please follow the steps below to set up the camera tamper detection function:

1� Check Enable camera tampering detection�

2� Enter the tamper trigger duration� (10 sec� ~ 10 min�) The tamper alarm will be triggered only

when the tampering factor (the difference between current frame and pre-saved background)

exceeds the trigger threshold�

3� Set up the event source as Camera Tampering Detection on Event > Event settings >

Trigger. Please refer to page 110 for detailed information�

Advanced Mode

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Vivotek FD8335H User Manual Page 108