The RFX-250 receives radio signals from a remote control and relays them via cable back to the MSC-400 master System Controller or MRF-350 Base Station. Advanced Narrow Band receiving circuitry provides longer range and minimizes interference, providing for more reliable system operation. Its compact size enables the RFX-250 to be placed out of sight. The RFX-250 displays RF interference via a bright red LED which flickers when interference is present. Simply relocate the RFX-250 out of the interference area. The RFX-250 is separately mounted in the interference-free location and connected to the MSC-400 or MRF-350 base station by a three conductor cable up to 150 feet away.
Your installer may recommend the RFX-250i. The specifications are exactly the same except that i-series products operate at a 433MHz (the other RF products transmit and receive at 418MHz). All i-series equipment must be matched with i-series remotes.