The M&S DMC3RS Retrofit Indoor Room Station is designed for use with the DMC3-4 Music/Communication Retrofit System Master and replaces older 3-wire connection intercom room stations.
The DMC3RS communicates with the master station, door speakers and other room stations and features a remote scan function that allows the user to control the power/volume of the master unit's built-in AM/FM radio, remote scan of preset stations and change of source. It also has the ability to activate a security system's panic alarm and a door release mechanism.
When adding a new speaker the room station must use the DMC1HR Mounting Ring and the DMCFR frame/mounting plate when replacing an old speaker.