RV Repair: 1999 Trail-Lite electrical problem, electrical problem, fuses

Question
I have a 1999 Trail-Lite camper. I just recently changed my seven way plug on the camper. Before doing so I disconnected the battery and unplugged the 110v from the outlet. Once I finished installing the new seven way cord I re-connected the battery and plugged the 110v back in. I had no power in the camper whatsoever. No power from the battery, no power from the 110v connection, and no power from the seven way plug once it was plugged up to my truck. What could cause this to happen?

Answer
i hate to say this but if everything was working before you did something to it, and it wasnt working afterwards im thinking that whatever you did caused it to stop working. Back track yourself and make sure that there are no lines crossed up or touching and check fuses.