@pdxtrains posted:I want to be sure I'm understanding this: the new WTIU Wifi unit is stand alone, correct? I will not need a TIU? The WTIU is powered by transformer and then plugs directly into track. Trains are then run by the mobile app. Is that it? MTH 50-1039?
You pretty much have it correct. It combines the TIU & WIU into one device.
I do think they will have to include an external power adapter to run the WTIU electronics and stop using FIXED 1 Input as a powersource (it would of course still power the track exactly like the FIXED 2 port). If it is powered from FIXED 1 input by a transformer and that input loses power due to a short, the whole WTIU would shutdown. This would leave the other three channels without any DCS communication.