On applications where a Sd-10, Sd-25, Sd-50/08, Sd-50/40, or Br-Brain4 is mounted on a vehicle, wiring control signals to them is usually impractical. An InfraRed link can be used to request and play specific shows and messages through the serial port without any wires. It can be used on trains, dark rides, monorails, trams, subways, roller coasters and a variety of mass transit systems. When used on vehicles which are used on different routes, the appropriate messages will be selected and played automatically.

Our Sd-10, Sd-25, Sd-50/08, Sd-50/40, or Br-Brain4 have a setting to support the IR Link. These filter the data from the IR link before it actually starts a show or plays a sound to avoid false triggers.

In applications where all you need to do is trigger messages sequentially (not randomly) the IR Link would be overkill. Standard rollover switches, pressure mats or optical sensors should be used: Our IR-Passive is a passive infrared motion detector. The IRThru and IR-Retro are through beam and retroreflective infrared beam-break sensors.