Start at Low End Mac:

         http://lowendmac.com/compact/se30.shtml

Down in the Online Resources section, you'll find a link to the Apple Tech 
Specs page:

         Macintosh SE/30: Technical Specifications, Apple
         http://docs.info.apple.com/article.html?artnum=112170

According to both of these sources, the SE/30 does not have a DB-9 
connector. Complement of ports would appear to be:

         2 ADB ports for keyboard and mouse
         2 DIN-8 serial ports on back of computer (modem & printer)
         DB-25 SCSI connector on back of computer
         DB-19 floppy connector on back of computer
         speaker port (1/8" stereo jack)

You might have a Processor Direct Slot (PDS) adapter card installed in your 
system. If you do, it could have a DB-9 connector. You'll have to look at 
the card or locate its documentation to determine what the DB-9 connector 
is for. For info about PDS slots, see:

         http://docs.info.apple.com/article.html?artnum=10308

Good luck and never underestimate the power of the LEM!

         Sp00ky

At 01:02 PM 5/30/2002 -0400, you wrote:
>[EMAIL PROTECTED] writes:
> >Sorry to cause confusion. DB25 connectors are older than dirt and DB9s are
> >only a little newer. They are commonly used for the serial output on
> >contemporary ATX (Wintel) platforms. They were also used at one time for
> >EGA monitors; I believe you can find some of these still on display in the
> >Smithsonian.
>
>I also have an se30 with one of those DB9's stickling out of the 
>rear....is there a good way of figuring out what it was used for?  a 
>modem?  an extra ega monitor?  ????  jw
>
>--
>Compact Macs is sponsored by <http://lowendmac.com/>.


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