Sound decoders generally give you an option to choose if the lights and sounds are on any time there is track power, or only are on when the engine is "selected" by your system. You'll have to check the decoder instructions to see how to change the particular CV for each type of decoder. It usually just changing a CV from "0" to "1" or something like that.
Yes.
Dave
'there's something happening here, what it is ain't exactly clear' Modeling the Hard Knox Valley Railroad in HO scale http://photos.hardknoxvalley.com/
These are all N scale. Tsunami 750, Digitrax 163MO, Not sure about Athearn Challenger or Atlas V1000. Thanks for your help.
Is it normal for the lights and sound to remain on even though the engines are not selected with the DT400? I have a SEB and when I power on the unit, the unselected engines will still have the lights on and the engine will make air release and other sounds. There is no movement with the unselected units. Thanks for your help.