Mailinglist Archive: opensuse (1786 mails)

[James Knott <james.knott@xxxxxxxxxx>]

David C. Rankin wrote:
> On 11/14/2011 07:43 AM, James Knott wrote:
> > Per Jessen wrote:
> > > the serial DB-25 plug is long retired, but the DB-9 is still frequently
> > > used though.
> > ARGHH!!!!
> >
> > It's "DE-9". There's no such thing as a "DB-9". The 2nd letter refers 
> > to the
> > shell size. The 25 pin connector uses a "B" shell, the 9 pin, "E". 
> > Another
> > popular connector is the DA-15 which was used for joysticks etc. That
> > wikipedia link lists the various shell sizes with common uses.
>
> And to think, I could have gone my whole life wistfully oblivious to 
> the fact that the 2nd letter referred to the shell size of the 
> connector.... God I love this list :) Thanks James ;-)

Years ago, I used to work in planning for a large telecommunications 
company, where I ordered connectors by the 1000's.  I wouldn't have had 
much luck ordering the wrong item.  Industrial supplier catalogues list 
the correct part identifier, but those selling to the public use "DB-9", 
because they have to deal with the ignorance of the general public.  
Incidentally, the first letter "D" refers to the connector series (the 
shells are sort of D shaped) and of course the number refers to the 
number of pins.  I suppose, if you wanted to spend the money, you could 
get a connector manufacturer to make a custom 9 pin connector in a DB shell.


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