Vivotek SD9161-H-v2 2MP PTZ Network Dome Camera - Manual (Page 160)

VIVOTEK
160 - User's Manual
Applications > DI and DO
Digital input : Select High or Low to define normal status for the digital input. Connect a digital input from
a sensor device to the camera, the Network Camera will report the current signal status. You may then
configure the Normal status (non-trigger status) as High or Low.
Digital output : Select Normally Closed or Normally Open to define normal status for the digital output.
Connect an output line to an external device, the Network Camera will report the current signal status.
You may then configure the Normal status (non-trigger status).
Set up the event source as DI on Event > Event settings > Trigger. Please refer to page 139 for
detailed information.