On 11/29/06, Nathan England <
nathan@paysonlinux.org> wrote:
>
> On Wednesday 29 November 2006 09:13, eric(c) wrote:
> > always been curious....how does an 80pin cable help anything if the
> > connectors on both ends are still 40 pin?
> >
> > eric
>
> They included an 'earth' wire between each main wire that transfers data.
> This
> allows a higher data rate through put because there is less interference.
> Basically, every wire is grounded.
More clearly, the extra 40 wires are all grounded making the original 40
wires be essentially shielded and thereby reducing crossover interference.
This is important to using faster interface speeds because the signals are
cleaner.
nathan
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