Re: 100 Base-T Hub

2003-09-23 Thread lfresea...@aol.com
Hi Kevin, there is a version of Ethernet called Industrial Ethernet. One of the leaders is Contemporary Controls. I've tested their hubs and they are very good... Talk to George Karones His e-mail is: gkaro...@ccontrols.com Cheers, Derek N. Walton Owner, L F Research EMI Design and

Re: 100 Base-T Hub

2003-09-22 Thread neve...@comcast.net
Kevin, I can't name a vendor, but I will try to help with some advices. Probably all Ethernet hubs will show susceptibility during EFT, in which some data packets will be lost. The EFT happens to have large spectral amplitudes right in the middle of the 100 Base-T Ethernet signal

100 Base-T Hub

2003-09-22 Thread Kevin Harris
Good Members, I'm having some issues getting together a decent test set up for immunity testing when I have a network connection at 100 Base -T. I've had several hubs in the lab but I can't get one to even pass level 1 EFT testing ( for CE EMC testing) . Would any of you be able to recommend a