Re: Null Modem GS and PC

["Greg Andrzejewski" <pressyourluck85@yahoo.com>]

I have ruined many a cable (two today!) trying to do what you suggested. The
problem is that I cannot find a definite source for which colored wire
corresponds to which pin. Every site says something different. I had an
"Asynchronous Modem Cable" that I cut in half and it only had 6 wires! 8
pins...6 wires. Go figure. I had a PC modem cable, lopped of the DB25 end
and proceded to twist the "correct" wires together. Needless to say, it
didn't work. Now I'll probably make my own from scratch. www.mouser.com
seems to have the parts I need, though there are so many different kinds.
Also, I have been using ColorTerm on the gs. Is that any good? It only
allows for x-modem transfers. What's the difference between all those
protocols anyway?
    Thanks for the help.
        -Greg


"Paul Grammens" <grammens@svn.net> wrote in message
3dea605f@news.svn.net">news:3dea605f@news.svn.net...
>
> "Paul Grammens" <grammens@svn.net> wrote
> A couple of important details I forgot to include:
> The easy way to make your own IIgs to PC null modem cable is to start with
a
> Mac/IIgs printer cable. Cut it in half to make two, or cut one end off.
> Strip the wires and sketch a diagram of which color goes to which pin. Use
a
> continuity checker, which can just be a couple of batteries and a bulb, or
> an ohm meter.  Get a connector from RadioShack or similar. Solder the
wires
> according to the diagram.
> Oh, and the most important part:  Good luck!
> -Paul
>
> >
> > The null modem cable you need is a PC to Mac cable, which you should be
> able
> > to buy. Here is a diagram:
> >
> > http://62.194.125.41:8080/pinouts/medicalserial.html
> >
> > Scroll to the very bottom of the page  "A diagram of the basic Macintosh
> to
> > PC-AT style DB9 null modem cable with fooled hardware handshaking"
> >
> > I use Agate, which is an old shareware com program available in the
> > archives. It has Zmodem, though you have to tell it to receive.  It
works
> > OK. I use it at 9600 bps, above that I had problems.
> > -Paul
> >
> >
>
>