Truck Camper Wiring Diagram

Never found a "standard" route for the 7-pin 12v pos power in a TC or TT. Some manufacturers route it through a battery cut-off switch, some don't. One way or another it's simply paralleled with the converter output, the battery, or anywhere in between. Some manufacturers use resettable fuses on this circuit, some don't. The 7-pin pos power should be fused somewhere in the TV. Although I've seen the 7-pin 12v pos power wire(s) (in a TC or TT) routed to the AC/DC power center (where it may get paralleled with the converter output), it's not typically routed through any of the ATO/ATC fuses used in most DC fuse panels.