Commax Dpra01 Installation Manual Link Link Link
Carefully review the wiring diagram in the official manual. The key is to match the terminal numbers (1-2-3-4) between the outdoor and indoor units to ensure proper voice and ring signal. Pay attention to the specific wiring scheme listed in the table above, especially noting that the AC power is connected to the sub room unit .
The DP-RA01 usually triggers a dry contact on the master unit. Check the wiring between the master station and the electric strike.
The DP-RA01 operates on a non-polar or polarized 2-wire system depending on the exact production year. To prevent audio humming or logic errors, follow standard practices:
typically functions as a room unit that communicates with a door station. Installation generally involves the following: commax dpra01 installation manual link
: The unit is designed for surface mounting. Fix the mounting bracket to the wall using the provided screws ( ) before attaching the door station.
The official resource for setting up your audio intercom system is available directly via the Commax DP-RA01 Wiring and System Diagram (PDF) . This system features a master-and-sub room station configuration designed for dual-zone audio monitoring and convenient remote lock release capabilities.
Verify that your external 12V lock transformer is wired properly through the DP-RA01 internal relay. Carefully review the wiring diagram in the official manual
On the COMMAX download page, look for a language dropdown. If missing, the manual ID “DPRA01_IM_ENG” indicates English. Korean versions are labeled “KOR”.
COMMAX strongly recommends a bench test before mounting:
Have a helper press the call button on the outdoor door phone. The indoor DP-RA01 should emit a loud electronic chime. The DP-RA01 usually triggers a dry contact on
The Commax DP-RA01 acts as the master indoor room unit, operating alongside external door stations and electronic strike plates. Its core technical architecture includes:
The DP-RA01 is part of Commax's single-house door phone line, typically featuring a surface-mount plastic body.