[Ham-Computers] Identifying Pin 1 on a DB-25 or DE-9 Sub-miniature D Series Connector

[Ron Youvan]

    Robert Downs via Ham-Computers wrote:

> I know that I once knew this but 20+ years of not needing to know it has
> taken its toll.  I need to make a "breakout box" to gain electrical access to
> the individual wires in a cable that has a male/female pair of DE-9S & DE-9P
> (often erroneously called DB-9) in the middle.  I know that Pin 1 is in the
> longer contact row, but have examined the faces of male and female
> connectors and found no numbers molded in.

   B 4 I retired I use to put the connectors facing down in a 3" vise 
and as I started to poke the wires into the solder cups I saw that they 
were numbered, on the inside of the shell.  If you don't have such 
numbers look at some other connectors.
-- 
   Ron  KA4INM - Youvan's corollary:
                 Every action results in unwanted side effects.