| Terminal | Function | Wire Color (typical) | |----------|----------|----------------------| | 1 | Video Signal (V) | Yellow | | 2 | Audio + Call | Red | | 3 | Power (12V DC) | Black | | 4 | Ground (GND) | White |

If you’ve recently purchased a COMMAX DPRA01 video door phone (also known as a video intercom or door camera unit), the first thing you’ll need to get it working is the installation manual. However, finding the official commax dpra01 installation manual link online can sometimes be frustrating—especially when manufacturer websites change their PDF locations or when you’ve lost the physical copy that came in the box.

Do not reverse power and ground. Incorrect wiring will damage the camera immediately.