> Hmmm... How can you avoid crosstalk if all the wire in your bundles is
> straight? Seems to me you need twist.
Does anyone know HOW twisted pair works? You cannot just twist whatever
you want. It works by tiwsting opposing pairs such that their signals
cancel each other out, or pulse in harmony, or whatever you wanna call it.
One wave goes up while the other goes down. That is how I am to understand
it in laymans terms.
I was told that you must be careful when making ethernet TP cable because
if you twist the wrong pairs, then you have worsened the transient
problem. I read this in a 3 com manual and also was told it by a tech guy
at SMC long ago.
So as far as I know, I dont think just twisting some of the pairs randomly
would help. What wires would you twist on a serial connection anyway? Or
does it really matter? Ive run flat satin as far as 100 feet and seems to
work fine. In places where I thought there would be lots of IF, I used
shielded NON TWISTED pair. I dont think Ive ever tried to use TP cable to
make a serial cable, so I couldnt tell you whether it caused a problem.
> > Chris...
>
~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~
Jake Messinger 713-772-6690 jake@ams.com
Advanced Medical Systems, Inc. 800-324-8594 jake@uh.edu
Houston, Texas http://www.ams.com/~jake
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(Don't steal my squigglies)