What are the terminals on the ADC-V520IR for?

The wiring terminals on the back of Alarm.com video devices are digital inputs that allow a hard-wired sensor to trigger video recordings. This feature is typically used as an alternative if the customer's camera is recording too many false VMD (Video Motion Detection)-based clips.

For more information about VMD, see Configure Video Motion Detection (VMD) settings for a video device.

The most common application is connecting a wired PIR (passive infrared) motion sensor, although several different kinds of sensors can be connected.

For more camera-specific instructions and requirements, see Indoor Fixed wIR - (ADC-520IR) Digital Input Trigger guide.