Can you help me? I have this Class 31 PCB and I want to add lights to this PCB (will be DCC) I have to motor sorted but don't know what the rest of the contacts do (see photo, contacts ABCD & 1234) Which is the common + (Blue)? Thanks in advance Tony /media/tinymce_upload/1fb1781a4f292baedad5b8101318d33d.jpg