ECN Forum Forums General Topics of the Trade Voice - Data - Video Discussion How far on a CAT5 Ethernet?

I know the rule but what is the longest CAT 5 run you have seen working? I once strung together over 1000' of IBM token ring wire, daisy chaining building runs together, and it worked. I was showing the guys how TDR worked and I was trying to get a lot of length, wire types, baluns and connections on the line.