I was searching the forum and came across another thread discussing problems with running MTH Crossing Gates with two ITADS in order to activate from both directions. I couldn't find a resolution anywhere else on the forum as I had a similar issue I was trying to resolve and came up with a solution using two ZStuff 1075 ITAD's and MTH crossing gates. What you need to do is control the gates with one ITAD and activate that ITAD with the 2nd ITAD. Wire both crossing gates red to 1075 red and blue and the power source, black to black and power source black, white to white, crossing gate yellow to 1075 gray. Crossing gate blue is left unconnected. Next connect the 2nd 1075 red and black to the same power source and connect the 2nd 1075 green to the 1st 1075 yellow. When a train passes the 2nd 1075 it activates the first 1075 which lowers the gates. Not sure if MTH ITAD or Lionel ITAD have similar wiring scheme but you can't seem to find them these days anyway and the Zstuff 1075's are available.
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