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???
06/19/07 18:28
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#141047 - Jon ... You should know better!
Responding to: ???'s previous message
It's probably a DE9. It's most often an error! If you order a DB9 from a knowledgable supplier, you'll probably be disappointed.

The 'B' is the shell-size, and the 9 is the number of pins populated in it. The problem, of course, is that every ignoramus in the retail industry and twice as many from without, refer to everything that remotely resembles a 'D'-shaped connector as a DB-something.

That shell that's commonly used for VGA, Serial, and some other connections is an 'E'-size shell. The one commonly used for AUI cable and MIDI cable connecitons is a size-A shell. The old "standard" RS-232 connector uses a 'B' size shell. The 37-position connector that once was found on every PC Floppy Disk adapter is a size-C shell, and the one most often used by SUN and DEC for 50-pin SCSI connections is a size-D shell.

Perpetuaing this misnomer, is inappropriate for an engineering discussion.

[getting down from soapbox]
Consider your wrist slapped, Jon.

RE


List of 19 messages in thread
TopicAuthorDate
i am having serious problem with serial            01/01/70 00:00      
   Show your working !            01/01/70 00:00      
      here is the code            01/01/70 00:00      
         Code is from this...            01/01/70 00:00      
         Posting schematics.            01/01/70 00:00      
   here is the circuit            01/01/70 00:00      
      Try this            01/01/70 00:00      
         an earlier thread with similar problem            01/01/70 00:00      
            i did that test            01/01/70 00:00      
         my capacitors are electrolytics            01/01/70 00:00      
            MAX232 uses 1uF caps not .1uF            01/01/70 00:00      
               +5 is what i use            01/01/70 00:00      
            DSUB = DB9            01/01/70 00:00      
               Jon ... You should know better!            01/01/70 00:00      
                  Ouch... I will never do it again.            01/01/70 00:00      
      CAUTION!            01/01/70 00:00      
   expected errors            01/01/70 00:00      
      Burden Caps.            01/01/70 00:00      
      Code and schematic            01/01/70 00:00      

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