Cables

[Leif Hardison]

 The reason you may notice improvement by using less pairs
 is because you cut down on factors like interferance. Also
 if you wish to get the best performance you will want to
 crimp wires from loosely packed spools and make sure there
 are no tight bends. If you bend a wire at to sharp of an
 angle you will loose performance.

 I can snag some diagrams if anyone wishes.

   -Leif Hardison
    hardware.doa.org

On Sun, 6 Jun 1999, Paul Eduard Schenker wrote:

> We looked at SCSI and dropped it; Myrinet looks good if you really need the
> bandwith.
> 
> About FastEthernet: we've exxperimented with cables with only 4 wires, and
> they seem to work quite well (in some cases we observed a perfomance
> improvement for which I have absolutely no explanation). Any experience in
> this field?
> 
> Paul
>  
> At 04:29 PM 6/1/99 +0200, Martin Konold wrote:
> >On Tue, 1 Jun 1999, Alvin Starr wrote:
> >
> >> At 80Mbytes/sec SCSI can make for a fast link between a small number of
> >> systems and with a low overhead protocol it could help solve some of the
> >> problems involved in trying to share memory across a network. 
> >
> >No, unfortunately the overhead of SCSI is compared to SCI and Myrinet
> >tremendeous. (Latencies in the ms range)
> >
> >Regards,
> >-- martin
> >
> >// Martin Konold, Herrenbergerstr. 14, 72070 Tuebingen, Germany  //
> >// Email: konold@kde.org                                         //
> >KDE:  A stable GUI for a reliable OS.
> >UNIX: Everything including a device is a file.
> >KDE:  Everything including a file is a URL.
> >
> >
> >
> Paul Eduard Schenker
> 1 Peirce Hill
> Singapore 248558
> 
> Phone: 	476 2245
> Fax:		472 6480
> email:		pesch@ibm.net
>