I see a lot being said about cat5 patch cables.
Based on my experience there's only one thing to say:
BUY them, don't make them
The list of problems caused by faulty patch cables (some of which may
initially test as ok - unless you have very $$$ testing equipment) is
long. Due to crosstalk computers may hang, switches may hang.
When it comes to paying $5 for a cable, the relative price compared to the
computer it's connecting is < 0.5% usually.
For 10baseT, ok. You can get away with a hand-held crimper. For 100baseT,
you'll find that good people can go to hell.
mk
Martin Krzywinski
System Administrator
Genome Sequence Center
600 W 10th Avenue
Vancouver BC V5Z 4E6
tel: (604) 877-6086
fax: (604) 877-6085
w3: http://www.bcgsc.bc.ca
On Wed, 22 Dec 1999, Mike Tvarkunas wrote:
> CAT 5 is 8 wires (4pair), Ethernet uses only wires
> 1,2,3,6 , but they have to be in the right series. I'm
> bad at pairs, but a normal cable is wired
>
> ONE END THe OTHER END
> 1 orange-white ---> green-white
> 2 Orange ---------> green
> 3 Green-white ----> orange-white
> 4 Blue-white -----> blue-white
> 5 Blue -----------> blue
> 6 Green ----------> orange
> 7 Brown-white-----> brown-white
> 8 Brown ----------> brown
>
> So a CAT 5 cross over.. you would swap the Orange and
> Green pairs this is what I use in my home right now and
> everyday at work I KNOW this works. Good luck
>
> Mike Tvarkunas
> Dist Dir of Information Technology
> East Mississippi Community College
>
> Quoting Ray Olszewski <[EMAIL PROTECTED]>:
>
> > At 02:30 PM 12/22/99 -0600, Michael Daniels wrote:
> > >Paul,
> > >A cross-over cable is a Cat5 cable with two pair of
> the wires inside
> > >switched. Pairs 3&4 and 2&6 I believe. If you have
> the correct tools you
> > >can make your own or you can purchase one at your
> local computer store.
> >
> >
> > Not quite. The correct wiring for a crossover cable is
> >
> > 1 -- 2
> > 2 -- 1
> > 3 -- 6
> > 6 -- 3
> >
> > ------------------------------------"Never tell me the
> odds!"---
> > Ray Olszewski
> -- Han Solo
> > Palo Alto, CA
> [EMAIL PROTECTED]
> >
> --------------------------------------------------------
> --------
> >
>
>
>
