What is the digital I/O connector intended for, and how does it work?

On A320 and A325 (A320G), there are two inputs and two outputs. The two cameras differ in the way these pins can be used.

A320 / A310:

- The state (high or low voltage) on an input pin is used to start an event in the camera, for instance set a flag in the image stream or trig an alarm activity.
- The state (high or low voltage) on an output pin is controlled by an activity in the camera, for instance by the result of an alarm detection

A315, A325 (A320G) & A615, A655sc:

- The state (high or low voltage) on an input pin is used to mark images for use by an application.
- The state (high or low voltage) on an output pin is controlled by an application.

I/O data:

Link to download Dig I-O.pdf for further details.