MTH 50-1001 DCS Remote Control Set TIU + handset Rev L UPDATED TO 6.1 C9 PS2 PS3

You will NOT find it any cleaner or newer! REVISION L--the Last Revision released.SOFTWARE UPGRADED TO 6.1 THE LATEST!Only getting harder to come by!!!! And this is the last Revision to the TIU, the Revision L, the one you want. 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 Rev L has improved signal recognition, which improves track signal quality.  The L also has a USB-B port, which can be used instead of the RS-232 port to connect the TIU to your computer for transferring files and updating. The TIU also comes equipped with 4 output channels, one s