Sorry for not being a little clearer. The Wireless connection was for another project and not for the EDM machine. I have tried shielded Cat5 but was not successful. Doh!, did not even think of using fibre, this will solve the problem :) Thanks for the help Regards Andrew Hooper -----Original Message----- From: Paul B. Webster VK2BZC To: PICLIST@MITVMA.MIT.EDU Date: Saturday, February 05, 2000 9:06 AM Subject: Re: Off Topic Ethernet Question. >Andrew Hooper wrote: > >> In the environment IM trying to setup this control system in we are >> not able to use Ethernet cables or wired networks due to the >> machinery.. Its an EDM machine, and the RF in the room is WAY to high, >> the PC is in a Faraday cage because we originally had trouble with it >> locking up :(. > > You've just told us then, that there's *no way* you could consider >using an RF network of any kind or form in there. > > Fairly obviously, you'll need fibre optic links, so go search for >those. I suspect Ethernet using 10Base-2 and fully-shielded cable and >connectors would actually work as a wired option, but the fibre sounds >easier to deploy. > > If as mentioned, you don't really need Ethernet speed or multiple >branches, than plain comms speed (115,000 Baud) fibre should do. >-- > Cheers, > Paul B.