Re: Eithernet Vs. Tesla Coil...

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Alexander Rice by way of Terry Fritz <twftesla-at-qwest-dot-net>" <alex-at-rices.myip-dot-org>

19/03/2002 15:00:43, "Tesla list" 
<tesla-at-pupman-dot-com> wrote:

>Finally I get around to my proposed solution 
;-)  All that you need is 
>to opto-isolate your cables (poor man's 
fibre).  I don't know whether 
>there is a commercially available RJ45->RJ45 
option available, but I 
>wouldn't have thought that it would be hard 
to achieve if you have PCB 
>making facilities.  You'd need two isolators 
for every cable going into 
>the "danger area" - one for the transmit and 
one for the receive pair.

Opto - Isolators are slow, the fastest one i 
could find was good for 40 MBd - you might 
manage 10Mb/s over it - i would suggest 
rinning through grounded metal conduit for 
starters, maybee putting some zener diodes / 
diacs across transmit and recieve, grounding 
the unused pairs at each end so they will be 
hit prefernetially in a direct strike or using 
fibre altho they are a bit expensive - two 
media converters at £60 ea + fibre -at- 60p/metre

regards

alex

>Cheers
>
>Matthew Smith
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