Commax Dp-ra01 Installation Manual

The DP-RA01 uses binary addressing. Set switches as follows:

| Unit # | Switch 1 | Switch 2 | Switch 3 | Switch 4 | | :--- | :--- | :--- | :--- | :--- | | 1 | ON | OFF | OFF | OFF | | 2 | OFF | ON | OFF | OFF | | 3 | ON | ON | OFF | OFF | | 4 | OFF | OFF | ON | OFF |

Note: The master door station must be programmed to call the correct monitor ID number. Refer to your door unit manual for call routing.

If you have an electronic door lock, two additional wires run from the camera’s lock relay to the strike. The DP-RA01 sends a “door open” signal via the A terminal. commax dp-ra01 installation manual

Remove the DP-RA01 from its backplate by gently prying the bottom edge. On the rear of the PCB, you will see a terminal block with 4-6 screws labeled. According to the Commax DP-RA01 installation manual, the critical terminals are:

| Terminal | Standard Function | Wire Color (Common Practice) | | :--- | :--- | :--- | | 1 (or +12V) | Positive power input | Red | | 2 (or GND) | Common ground / negative | Black | | 3 (or AUDIO) | Audio signal from door unit | White or Yellow | | 4 (or CALL / TALK) | Call button signal / voice switch | Blue or Green | | 5 & 6 | Secondary door release (rarely used) | Optional |

⚠️ Critical Warning: The DP-RA01 is polarity sensitive. Swapping terminals 1 and 2 will permanently damage the unit. The DP-RA01 uses binary addressing

The DP-RA01 utilizes a 4-wire connection system. Correct polarity and terminal assignment are critical for system function.

If you have purchased a Commax DP-RA01 video door phone (intercom) or moved into a new apartment equipped with one, finding a clear, concise installation manual is your top priority. The Commax DP-RA01 is a popular 4-wire audio/video door entry monitor known for its slim profile and reliable performance.

However, the official manual can often be lost or filled with technical jargon. This article serves as a detailed Commax DP-RA01 installation manual, covering wiring diagrams, terminal identification, DIP switch settings, monitor mounting, and troubleshooting. Note: The master door station must be programmed

Important Disclaimer: This guide is for informational purposes. Always disconnect power from the main supply before handling electrical wiring. If unsure, consult a licensed electrician.

If your original DP-RA01 has faded yellow plastic or a dead speaker, replacement is simple: