Attached is schematic sent to me from Redwood factory. It is generic for all coaches. I had previously purchased for my previous 5th wheel cable and satellite checking, a FLUKE NX8 Pocket Toner, which I used to figure out which connections were satellite or cable in our 31SL Redwood. Labeled all based on the toner results. They really should be labeled in the factory, because it saves a lot of work in installing new equipment.