I meant to say that the 7 pin round was the bad one (somehow got a 6 in there instead of the 7)
On Mon, Aug 6, 2018, 8:41 AM Forrest Christian (List Account) < li...@packetflux.com> wrote: > The 7 blade and 4 flat are the most common from my experience. Usually > you have the 7 blade on larger trailers and rvs with things like electric > brakes and constant battery power. The 4 flat is popular for small > trailers with just marker and turn signals. > > Any trailer I own is going to have one of the above two connectors. Any > towing rig is also going to have one or both of those two connectors. For > rigs with only a 7 pin, a 7 pin to 4 pin adapter will be kept with the > rig. Generally a vehicle with only a 4 pin connector is small enough you > shouldn't be towing a trailer which needs a 7 pin connector. Note that a > 7 to 4 adapter needs electronics to combine the turn and brake lights. > > Right now my vehicle collection only has 4 pin connectors. I expect this > to b change in the very near future. > > There are lots of adapters available for others if you run into them, > such as https://www.etrailer.com/Wiring/Hopkins/HM47570.html . The > challenge as you have found is that there seems to be lots of standards > out there one you get outside of the 4 flat and 7 blade connectors, with > those 6 pin round ones being probably the worst offender (although the 5th > wire in a 5 flat connector comes close) > > > On Mon, Aug 6, 2018, 8:16 AM Chuck McCown <ch...@wbmfg.com> wrote: > >> I have a bunch of trailers and a bunch of trucks. I even have a semi >> truck. >> Is there a wiring orientation that is more used than the others? >> I have found so many different socket and plug diagrams that I find it >> amazing that it has never been standardized. >> >> I am going to build a converter so I can plug the semi tractor into some >> of my other trailers that the the flat blade connectors. >> It will take an electric brake controller in the semi and some kind of >> diode box to combine some of the lines. Those are available on the retail >> market. >> >> But the number of connections and the wiring of the connections seems all >> over the map. >> >> Opinions please. >> >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >
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