Two-Way Remote Switching


MirX Relays are equipped with firmware built into the board that will allow contact closure inputs to control contact closure outputs in a remote location. The MirX Relays are sold in pairs and each device has contact closure inputs and relays. You control the relays on the one board using the contact closure inputs on the other. You can do this over a wireless, wired, or network connection.

  • Sold in Pairs
  • Each Device Controls the Other Device
    • Local Inputs Control Remote Relays
    • Remote Inputs Control Local Relays
  • Wired Operation Up to 1000′
    • Using 3-Wire Cable
  • Wireless Operation up to 2 Miles
    • Line of Sight Operation
  • Internet Operation Unlimited
    • Will Find Each Other with Internet Connection
  • No Computer, No Programming, No Set-Up
  • Works Together Right Out of the Box!

MirX Switching

To put it simply, flipping a switch on one board activates a relay on the other. Flipping a switch on the other board activates relays on the one. In this way you can mirror electronics at vast distances apart without custom software or hardware.

If you only need one way control (A->B instead of A<—>B) then you should look at our MirC line.

Why Choose NCD?

With NCD you know you have a proven reliable, easy to use, and extensible product because we’ve been in the business for over 20 years. This means you don’t have to spend valuable time researching how to jig-saw pieces of your project together to get them to work cohesively. Being manufactured in the U.S.A. you know you’ll get good support and a quality product. NCD also ensures you won’t have to put any time into soldering or building a PCB, just pick your boards and power them up. Knowing that every sensor, relay controller, and component is built around the same concept will save you guess work on how well software will work with any board.

How It Works

Every MirX controller is equipped with contact closure inputs and outputs. The inputs on one controller activate the relays on the remote device using wireless communications. The “X” in MirX refers to the crossover. Since both devices are equipped with contact closure inputs and relays, each device targets and controls the remote device.

Communication Options

Selecting a Communication Technology

The Communication Technology you choose will dictate installation requirements. Wireless Remote Switching is the easiest to install, but you must make sure the devices are close enough for a clear signal. Wired Remote Switching can be used to communicate up to 1000 feet and has all of the inherent reliability of direct wired solutions. Ethernet Remote Switching allows the device to use a network or internet connection to find each other anywhere in the world and communicate.

The choice is yours and can change to suit your application.

Wireless Remote Switching

Wireless Remote Switching may be the easiest option as it only requires 12 volts of power at the install locations and be within wireless range of each other. When it comes to the wireless range you should remember that the range we list is a line of sight range. A 1 mile range line of site can be cut down to a few hundred feet with a thick wall between them. 


Wired Remote Switching

Wired Remote Switches are inherently more reliable than their counterparts and are ideal for applications where wireless communications are restricted (airports, military bases, etc.). The devices can be up to 1000 feet away from each other (further if you implement signal boosters).

See all Wired Remote Switches

Network Remote Switching

Network Remote Switching allows for simple LAN or WAN remote relay switching. Simply connect the boards to the same network or to different networks with internet access and they will find each other automatically. Once they’ve found each other they will work as if directly wired.

See all Network Remote Switches