100Mb LAN Capacitance

Mike Warren · 2006-08-23T00:40:42+00:00

Continuing with my EMC problems, I'm looking into ways of stopping thesignals getting to the outside world through the LAN port.I can get the emissions down by adding capacitance to the RJ45connector but I need at least 47pF per wire to ground to achieve areasonable result.Is this too much? I have tested it over a 4M cable and 100pF per wireand I still get reliable operation but don't know how high I can gosafely.-- Mike