Re: Slot 'extender' dev cable

[glen herrmannsfeldt <gah@ugcs.caltech.edu>]

mdj wrote:

(previously snipped question about ribbon cable and, presumably,
the Apple II bus.)

> There goes my hope that you were going to say "the ESR and capacitance
> of IDC ribbon is sufficiently low that all but the most aggressive
> card designs should work fine" ;-)

The IDE cable is pretty much the ISA bus connected to a ribbon
cable with buffers.  Well, the data bus, a few address lines, and
some decoded address lines.  That is why it is restricted to 0.5m
or so.

Since the Apple II bus runs much slower than ISA, I would expect
a somewhat longer cable to work.  Best is to have a ground wire
between signal wires.

-- glen