The wiring from the truck system to the Orion should be the only truck connection to the camper unless you are intending to be able to charge the truck from the camper. To do that with proper control you would want manual switching - not an isolator. Assuming you are not trying reverse charge, the Orion acts as an isolator preventing reverse charging through its input wires so you don’t need or want an additional isolator.
You should consider installing larger positive and negative charging wiring from the truck battery to the Orion, and locate the Orion as close to your camper battery as practical. I have an Orion 12/12-30 30 amp charger, and I ran 6 awg wires for the entire run. The engine running detection logic prevents charger cycling at 30 amps with a 30 foot wire run between the truck battery and the charger. You would want 4 awg if you want to take advantage of the Orion XS’ full 50 amp capability.
A homeless man approached me as I was leaving a sandwich shop…
He asked me if I had $10 to spare. I felt bad for him, and was just about to give him the money.
But then I realized I was holding a $10 foot long I had just bought, so I held up both the cash and the sandwich and told him he could have whichever one he preferred.
He stared at the sandwich. Then his eyes shot over to the $10 note. He looked at the sandwich again, then back at the cash. After a moment his eyes were darting back and forth between the two, and he threw up his hands in despair, let out a scream of anguish and then turned and ran away from me.
At first I was totally confused, but then it dawned on me:
Beggars can’t be choosers.
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