What BLF13 said.
Almost always White is the DC camper ground/neutral.
You have a 3-pronged household plug so your AC is a no brainer, just plug it in.
The DC is the side with bare wire ends. YOU REALLY NEED TO GET A MULTI METER!!!!!
Check the output wires yourself. Check the camper wires yourself. determine for sure that white is ground.
You can alternately determine ground if all the white wires are connected to a large wad, block, tangle, harness or other sort of contraption the RV manufacture came up with at that moment. All ground wires are usually connected together in bulk and that is also connected to the camper frame and the battery Negative.
You really need to get a multi-meter and check yourself.