I'm rather curious to know what caused the problem. Were you able to start your engine? If so, did you press the "Battery Switch" on your dash panel? After waiting several minutes (in case your house batteries were dead), did you try to start your generator? If you got that far & still had no 12 volt power, chances are it isn't the battery. (the convertor would have put enough charge in the batteries to at least light a couple 12 volt lights) Rather the problem may have been the main 80amp circuit breaker had tripped. -either the disconnect at your entryway, or I believe there is a circuit breaker in a power compartment that would need to be manually reset.
Too bad your coach manufacturer didn't supply you with electrical schematic drawings. If not you, then the CoachNet would have a good shot at getting you running without jumpers & jury-rig. Oh wait, your manufacturer is the same as mine! Holy cow, we've all wished that! In fact, that was the reason this forum in the 1st place.
Actually Jim, it is my understanding that now, if you request those drawings, they may well be provided to you in PDF format. You can keep them on a laptop if yostarted ur travel with one (& the batteries aren't dead!) or you can print them out to carry with you.