Believe it or not, not every rig is the same.
What I am calling a power center is probably only located in one place in campers that have a "power distribution panel" and "AC to DC converter" located in the same place. In my camper I have a WFCO 4900 that has the converter inside the box that has the AC circuit breakers and about half the DC fuses (the rest are carefully hidden around the rig like Easter Eggs).
Some campers (like motor homes I guess) have the AC distribution panel in one place; fuses all over the place; and the converter close by but a separate unit. My buddies Montana has the fuse/breaker panel in the coach cabinet wall and the converter right behind it in the basement storage area.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW