MTH 50-1001 DCS Remote Control Set TIU version i3A + handset UPDATED TO 6.1 Protosounds

REVISION I 3ASOFTWARE UPGRADED TO 6.1 THE LATEST!Only getting harder to come by!!!! Here is what you need to get up and going with MTH DCS. Whether you want to use it with your MTH O gauge, G, HO, S or standard gauge, this is what you need to easily get the most out of your digital trains.The Track Interface Unit or TIU has an assortment of input features allowing the operator to link up to two AC or DC transformers, add additional AC transformers, program new software features, serial interface (RS-232), AUX power, Proto-Cast audio, AIU input, and Proto-Dispatch.The TIU also comes equipped with 4 output channels, one set for constant-voltage DCS command power, and one for conventional DCS command power.The handset is super clean and has also been upgraded to 6.1.Together, the wireless handheld remote and TIU, the track interface unit, offer operators simply the best way to run their model railroad.About DCSDCS is a system for controlling your entire layout - multiple sound-equipped en