Re: Testing a serial port

[Jim <jim@magrathea.plus.com>]

On 2007-09-06, schmidtd <schmidtd@my-deja.com> wrote:
> On Sep 6, 8:02 am, Jim <j...@magrathea.plus.com> wrote:
>> I've no idea about the pinout on it, so I don't know if the socket is wired
>> as a conventional 25way serial port or not.
> Oh, my.  Defenestration may well be in your future.  The header might
> be wired thus:
>
> 1 2 3 4...13
> 14 15 16... 26
>
> or thus:
>
> 1 3 5 ...
> 2 4 6 ...
>
> If you have the original header-to-DB25 connector, lots of
> permutations will already be taken care of.  If not... look out below.

Hmmm, interesting that you say that. The machine that this card came out of
had a weird, home-made-looking device that this card plugged into, and which
itself ended in a 25 way D. That would imply that some sort of conversion is
going on, but this machine used to be owned by a university so it could be
anything.

The card itself has a 25-way D on the end of a ribbon cable - no way of
telling exactly how it's wired, sadly.

Jim
-- 
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