I have the Power solutions product. I have a 30 amp coach, but since my generator puts out a leg of 30 amps, and a leg of 20 amps, the Power Solutions product allows that same arrangement from using the electrical pedestal that usually has at least a 30 amp circuit and a 20 amp circuit, having 2 shore cords, the original 30 amp leg, and a second shore cord to plug into the 20 amp outlet on the pedestal. It works really well, but it is not 50 amps, because 50 amps is '2 legs of 50 amp'. This is neither 30 or 50. It is 2 legs, 1 leg of 30, and 1 leg of 20.
Since one of my a/c's is already wired to the 20 amp leg of the generator, so by separating out that 20 amp leg, it allows both A/C's to run at the same time. 1 a/c on the 30 amp shore cord leg, another on the 20 amp shore cord leg.
ON A 50 AMP COACH, I am assuming the arrangement is the same, only the 50 amp shore cord is plugged into the 30 amp pedestal (using the dogbone 50-30 amp adapter) and the 20 amp feed is separated out of the transfer switch to allow a 2nd shore cord to plug into the 20 amp service on the pedestal.