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What Happened to DCC 9 Pin and 8 Pin Plugs???

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  • Member since
    October 2006
  • From: Western, MA
  • 8,571 posts
Posted by richg1998 on Thursday, August 13, 2020 7:45 AM

Technology on the move. Just deal with it.

Rich

If you ever fall over in public, pick yourself up and say “sorry it’s been a while since I inhabited a body.” And just walk away.

  • Member since
    January 2009
  • From: Bakersfield, CA 93308
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Posted by RR_Mel on Wednesday, August 12, 2020 9:46 PM

I model the transition era, early to mid 1950s so the 8 pin decoders work for my purpose nicely.  The only extras I need are headlights and sound and one function output.


Mel


 
My Model Railroad  
http://melvineperry.blogspot.com/
 
Bakersfield, California
 
I'm beginning to realize that aging is not for wimps.

  • Member since
    November 2015
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Posted by ATSFGuy on Wednesday, August 12, 2020 9:23 PM

Older DCC locomotives have 8 and 9 pin connectors, the new ones from maybe 2010 or the mid 2010's onward have 21 pin connectors.

It depends on what type of locomotive you have and which decoder you want to use.

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Wednesday, August 12, 2020 6:07 PM

 The 21 pin is generally lower profile, plus with the new locos coming with headlights, ditch lights, truck lights, cab lights, number board lights, working class lights, and rooftop beacons, you need a lot more wires than fit in a 9 pin connection. Many of the newer decoders have 12 function outputs, plus speaker, plus track pickup, plus motor wires, plus keep alive connections. That's actually all 21 right there. If they keep adding more, we're gonna need a bigger connector. 

                              --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
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Posted by mvlandsw on Wednesday, August 12, 2020 3:34 PM

Loksound has an eight pin sound decoder. It has to be hard wired for the speaker and extra light functions.

  • Member since
    May 2014
  • From: Pennsylvania
  • 1,154 posts
What Happened to DCC 9 Pin and 8 Pin Plugs???
Posted by Trainman440 on Wednesday, August 12, 2020 2:40 PM

I decided to scroll through some online shops today, looking for decoders, and I realized that there is a total shift to make the 21 pin socket the standard. 

I barely see any 9 or 8 pin sound decoders anymore, it seems like the leading brands (tsunami 2, loksound, wowsound) all are dominated by the 21 pin. 

Seems like the 9 and 8 pin decoders are now reserved for non sound cheaper decoders. 

Is there a reason why?

Charles

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Modeling the PRR & NYC in HO

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