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Re: [softrock40] Re: DB9 pin out

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  • Knight Ao
    So, what?
    Message 1 of 14 , Jul 1, 2009
      So, what?


      --- f6hsi <F6HSI@...> wrote:


      > --- In softrock40@yahoogroups.com, "n8ewy"
      > <n8ewy@...> wrote:
      > >
      > > Thank you Bob. That was most helpful. I already
      > had my glasses on Alan, but coupled with a mad
      > glass, I was able to see the numbering on this one.
      > Just a rookie, sorta, here. Still learnin stuff
      > every day. I love this crap!
      >
      >
      > Hello Dohn,
      >
      > This is another day, so another opportunity to learn
      > something. HI!
      >
      > Do you know that DB9 connectors don't exist?
      >
      > In fact it is a misuse of language. In the D-Sub
      > series of connectors,
      >
      > the second letter is the shell size:
      >
      > A for 15 contacts,
      >
      > B for 25,
      >
      > C for 37,
      >
      > D for 50
      >
      > E for 9.
      >
      > So the correct name is DE9. And if you have 25
      > contacts it is DB25.
      >
      > In fact I must say the correct name begins with DE9,
      > as 'normally' we
      >
      > have to add a lot of letters/figures to specify the
      > exact model as
      >
      > they are a lot of variations about the shell
      > itself(tinned or
      >
      > chromated for ex), the mounting options, the contact
      > type(P for pin,
      >
      > S for socket), to solder cup or wire wrap, if wire
      > wrap what length,
      >
      > straight PCB, right hand connector and other
      > subtleties!
      >
      >
      > Only my 2 cents...
      >
      >
      > 73's
      >
      >
      > Francis.
      >
      >
      >
      >
      > ------------------------------------
      >
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      >
      >
      >
      >
      >
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