Re: Hooking an Apple //c up to a Mac iici

[blackm00@cam.org (Michael Black)]

"Paul Grammens" <grammens@svn.net> wrote in message news:<3d482a37@news.svn.net>...
> "Paul Bramscher" <brams006_nospam@tc.umn.edu> wrote in message
> 3D47F0AF.1050703@tc.umn.edu">news:3D47F0AF.1050703@tc.umn.edu...
> > Thanks -- it did the trick.
> >
> > However, I've found connection problems beyond a 2400 baud setting with
> > the terminal programs.  I'm wondering if my cable is noisy, version of
> > ProTERM isn't up to par, or you just can't expect much more.  At any
> > rate, this isn't so bad considering the relatively small files of the
> > Apple //.  I'll have to play around with it a bit and see about
> > increasing the speed.
> >
> The handshaking of the IIc hardware is not very good.  It may be possible to
> up the speed with the optimum cable wiring, but as you say, since the files
> are so small and the floppy capacity too, there's not a lot of need for
> speed. I think I just use 2400 too.
>[stuff deleted]

Two things come to mind.  One is the odd nature of the Mac serial/printer
ports.  It's been too long to remember detail, but early cables didn't
do Mac hand-shaking properly.  When faster modems (such as 14.4K) came
along, one needed a  cable with slightly different wiring.  I remember
rewiring my Mac to modem cable when I moved from a 2400baud to 14.4K.

The other thing is even vaguer in my mind.  Am I thinking of some other
piece of hardware (or completely other computer?) when I remember
something about a crystal for setting baud rate being off somewhat?
There was something that used an existing crystal that was a bit off
for baud rate timing, and it caused problems in some cases or at higher
speeds.  Since I've never had a IIC, this is a detail I wouldn't have
remembered in the first place.

   Michael