@Rod Stewart posted:John, you can wire the board to any onboard AC or DC source that you wish. Just select the appropriate load resistor value from the user notes table and you should be good. If you are using AC you should probably install a blocking diode D1 on the board where shown, and use a lower value resistor as suggested in the notes.
If you can tell us more about your supply source, I can give you more specific info.
Rod
My supply source is a Lionel KW transformer running conventional.
Thanks Rod,
John