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VIVOTEK
User's Manual - 109
Applications > DI and DO
Advanced Mode
Digital input: Select High or Low to dene the activate status for the digital input. The Network Camera's
current status is shown on the right.
Digital output: Select Grounded or Open to define normal status for the digital output. The Network
Camera will show whether the trigger is activated or not.
Set up the event source as DI on Event > Event settings > Trigger. Please refer to page 94 for detailed
information.
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 94 for detailed information.