ACTi D71A User Manual
Page 11
Hardware Manual
4) Digital Input / Output (DI/DO) and Audio Input / Output
This connector connects to digital input or output devices, such as an alarm trigger, panic
button, etc., as well as audio input and output devices, such as microphones and speakers.
Digital Input (DI) and Digital Output (DO) devices are used in applications like motion
detection, event triggering, alarm notifications, etc. See
on page 29
for more information.