Nice tester.  Going to get one.  Will save me the effort of building one.  
Thanks.

From: Mark Radabaugh 
Sent: Tuesday, August 07, 2018 8:15 AM
To: AnimalFarm Microwave Users Group 
Subject: Re: [AFMUG] OT Trailer plug hell

One of these: 

https://www.etrailer.com/Wiring/Pollak/PK12741.html

and the appropriate adapters.   Or just buy one of each:

https://www.etrailer.com/Wiring/Brophy/F4CT.html
https://www.etrailer.com/Wiring/Tow-Ready/TR20116.html

The 7 flat stabs in a round connector is probably most common, followed by the 
6 round and then the 4 flat

Mark



  On Aug 7, 2018, at 10:11 AM, Chuck McCown <ch...@wbmfg.com> wrote:

  Yep,  most common for RVs.
  Have to have working brakes on everything.

  From: Nate Burke
  Sent: Tuesday, August 07, 2018 7:36 AM
  To: AnimalFarm Microwave Users Group
  Subject: Re: [AFMUG] OT Trailer plug hell

  I might be wrong, but I think he means 7 flat pins in a round configuration, 
as opposed to 7 round pins in a round configuration.

  What does UHaul Use for pin configuration?  I figure that those trailers make 
it from coast to coast on a weekly basis, so whatever they do is probably the 
most standard.  


  On 8/7/2018 7:53 AM, Mike Hammett wrote:

    I don't think I've ever seen 7 flat.




    -----
    Mike Hammett
    Intelligent Computing Solutions

    Midwest Internet Exchange

    The Brothers WISP






----------------------------------------------------------------------------

    From: "Chuck McCown" mailto:ch...@wbmfg.com
    To: "AnimalFarm Microwave Users Group" mailto:af@af.afmug.com
    Sent: Monday, August 6, 2018 9:39:43 AM
    Subject: Re: [AFMUG] OT Trailer plug hell


    7 pin flat seems to be on almost everything around here except for the 
semi.  It is round.  But the wiring pinout of the connectors are diffferent.

    I think I am going to make come kind of comprehensive test box that has the 
plug, socket.  Lights on each wire and a switch to energize each wire. 

    From: Mike Hammett
    Sent: Monday, August 06, 2018 8:33 AM
    To: AnimalFarm Microwave Users Group
    Subject: Re: [AFMUG] OT Trailer plug hell

    7 pin round is what's most common, but then there are different pinouts. 
What's "common" isn't so common.




    -----
    Mike Hammett
    Intelligent Computing Solutions

    Midwest Internet Exchange

    The Brothers WISP






----------------------------------------------------------------------------

    From: "Chuck McCown" mailto:ch...@wbmfg.com
    To: "AnimalFarm Microwave Users Group" mailto:af@af.afmug.com
    Sent: Monday, August 6, 2018 9:29:59 AM
    Subject: Re: [AFMUG] OT Trailer plug hell


    I have to do 7 pin round for the semi.  I am planning to do 7 pin flat for 
everything else.
    But I want the wiring to be the same and I want it to be as common to other 
things as possible. 

    I wish there were standards. 

    From: Cameron Crum
    Sent: Monday, August 06, 2018 8:26 AM
    To: AnimalFarm Microwave Users Group
    Subject: Re: [AFMUG] OT Trailer plug hell

    They make adapters to go between. I find the old 4 prong to be the most 
common on the trailers I have used/rented. My truck came with both a 7pin and a 
4 pin jack already installed, but it also has a stock trailer brake control. 

    On Mon, Aug 6, 2018 at 9:15 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. 



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