M1 to Lutron RadioRA2 Serial Interface


The ELK-M1XSLU is a dedicated Elk-M1 serial expander for connecting an M1 Control to a Lutron RadioRA2 Main Repeater. RadioRA2 is a wireless multi-room control system for Lights, Shades, and HVAC Thermostats. Interfacing a RadioRA2 system to an M1 allows control in response to security system actions or conditions. With the automation and remote capabilities built into M1 it is possible to control RadioRA2 devices from across the room or across the world. Benefits include energy savings, convenience, and comfort.

The M1XSLU should be mounted as close as possible to the RadioRA2 Main Repeater. An 18″ 9-pin flat ribbon serial interconnect cable is provided.


Product Details

  • Activity/Status LED (Orange)
  • Auto-Reset Hardware Watchdog Circuit
  • Addressable (1-7) TYPE 5 Databus ID
  • Connection to Main Repeater: RS232 Cable - Included
  • Connection to M1: Elevator Screw Terminals (4)
  • Operating Voltage: 12 Volts D.C.
  • Current Draw: 31mA
  • Housing Dimensions: 4.25" x 6.375" x 2.125"
  • Circuit Board: 2.75" x 3.95"


  • M1 to Lutron RadioRA2 Serial Interface
  • Plastic Housing
  • ELK-W040A DB9 Pin Serial Cable Assembly
  • 4 #6 Plastic Anchors
  • 4 #6 Pan Head Sheet Metal Screws
  • Instructions

Locate an ELK Authorized Distributor Near You!

For more infomation, call ELK at (800) 797-9355.

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