I wish to wire my Viesmann & Brawa semaphore signals. Simple wiring, no train control, just semaphore arms. I wish to use the green Fleischmann push-button boxes. HOWEVER, even though the EU and NEM seem to have "standarized" everything else, Fleischmann, Veismann & Brawa all seem to use different color codes for which wires connect to what! Is there a "standard," e.g., red = + / blue = -. Is brown "ground?" In essence, how do I "decode" the Viesmann wiring diagrams to attach to the trafo & Fleischmann push-button boxes? ANY help much appreciated.
