Yes, it's a simple four wire system hooked to a double 50A breaker... two hots and a ground and neutral. Depending on the pedestal you buy, it may have a 30A and 15A GFI 120V outles in addition to the 50A 240V outlet. Do not worry about the 240V as the camper splits it into two 120V as very few RV's use 240V.
Instead of spending $200+ on something like this
all you need is something like this on a wood post from HomeDepot for $30.
The hots go to the outside lugs and you will hear you need to get an electrician to do this complicated and dangerous task. :S
OP, here is a
site with more info... click on 50A on left and it has a table for wire size/distance.
