The two (2) connectors connect to digital input or output
devices, such as an alarm trigger, panic button, etc. Digital
Input (DI) and Digital Output (DO) devices are used for
applications like motion detection, event triggering, alarm
notifications, etc. See How to Connect Digital Input / Digital
Output Devices on page 34 for information.
This jack connects to the power adapter and power cord to
supply power to the camera. See How to Use the Power
Adapter on page 32.