M&S DMC3-4 3 Wire Intercom System Upgrade Kit (White)
This intercom system is designed to upgrade any existing 3 wire system.
Designed to provide updated functionality and styling in homes with existing M&S and NuTone 3 wire intercom systems. Engineered to run on existing wires, the DMC retrofit will replace most older M&S Systems and NuTone intercoms. Unique retrofit finish out frames make installation easy by eliminating the need to repair drywall. The DMC retrofit also offers an optional 6-disc CD changer.

Kit Includes:

(1) DMC34 Master Station Intercom
(1) DMC1H Master Station Rough-in
(1) DMCFM Master Station Retro-Fit Frame
(3) DMC3RS 3 Wire Room Stations
(3) DMCFR Room Station Retro-Fit Frames
1 Power Supply
1 AM/FM Antenna
Warranty Card
Upgrade Your Current Home Intercom System
First you must check for your model number, which is located on your master unit.
Find the number of wires, pull a room station from the wall and count the number of separate wires located at the room unit. These two things will assist you on how to upgrade your system.
Make sure you have a „Home Run„ wiring setup - The DMC3-4 Requires each room unit requires the wiring to be „Home Run„ Back to the master unit. This can be checked by removing each room unit, and making sure there is only 1 set of wires coming in, and none going out to another room unit.
If there is another set of wires going from one room unit, out to another room unit, you have a „Looped System„ which will require the NuTone IM-5000 for upgrading.
Choose the Proper Equipment - The DMC3-4 System can work with both 3 or 4 wire systems - Simply add either the 3 or 4 wire sub-stations to meet your needs. Then add any extra retro-fit brackets to replace your current system with little wall repair.
*NOTE If you have a 6 or 8 wire „Home Run„ System you can use the standard DMC1 Intercom. For Upgrading.