The is an audio doorphone room station typically installed as part of a single-house intercom system. It is designed for surface mounting and operates on a universal power source of AC 100-240V . Installation Steps
For single-family homes (1-door 1-monitor): Set all DIP switches to OFF.
The is an audio interphone station designed for single-house or multi-unit sub-station use. It features a 2-wire connection to the door station and a 2-wire connection for the door release. Installation & Wiring Guide
Based on the analysis of the Commax DP-RA01 installation manual, the following potential issues and concerns are identified: