RE: [SI-LIST] : Single-ended SCSI vs. di

joel.kolstad@techne-sys.com
Fri, 19 Sep 1997 17:30:25 -0800

On Friday, September 19, 1997 5:15 PM, bknott@wlgore.com wrote:
> Secondly, the G-S-G configuration
> provides a control on impedance which the single ground doesn't .

This sounds good for ribbon cables. How about for external SCSI cables, =20
which are round and therefore have the various wires "scrambled?" =20
Different signal wires would seem to have significantly different =20
impedances due to the variegated physical arrangement of ground wires =20
(especially that signal's "own" ground wire). Still a lot better than a =20
single ground system, I suppose.

This is a separate topic, but it would seem that SCSI over flat ribbon =20
cable would be more reliable further than over regular ribbon cable than =20
over flat to round cable, and that would be more reliable than just =20
regular round cable.

---Joel Kolstad