Hello Kaan, the DCS commander is only good for MTH trains! I am not sure if it will do DCC in H.O. but I do not think it will. If you want to run Lionel trains in command mode you must have a Lionel Lioncheif or Legacy unit from Lionel. Also Lionel Legacy won't work on MTH PS-2 or PS-3 engines, has to be MTH DCS.
As for track connector; what track are you using? Lionel Fastrack or tubular? The connectors are different for each style of track.
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