Good Day. I have a Faller Car System stop light control unit with 2 stop lights and 2 electromagnets for stopping the vehicles. It is Faller #1655. I have lost the directions that came with the unit. I need help from someone that can tell me what the connections on each end of the control unit are for. On one end both connections are marked '+', on the other end one connection is '+' and the other is '-'. Any information would be a big help. I have the traffic lights and stop magnets working properly, but I'm hoping that these additional connections will make it possible to control the changing of the stoplights from red to green with a separate pushbutton. Kind regards, Pete Elliott