Which cables are "active" in the UTP cable

Question

I believe there are 4 cables inside the UTP cable that are "active" for data, the rest might be for activity and other stuff. I need to know which colors represent the data transfer from an UTP ?

Or am I wrong ? Thanks.

score 3 · Accepted Answer · answered Oct 14 '11 at 13:32

3

Here you go:

http://www.washington.edu/lst/help/computing_fundamentals/networking/schemes

answered Oct 14 '11 at 13:32

Nobody

15,510

score 0 · Answer 2 · answered Oct 14 '11 at 13:35

0

This site hopefully will provide you with what you need! I belive for standard ethernet cable its pairs 1/2, 3/6, 4/5 and 7/8

http://www.zytrax.com/tech/layer_1/cables/tech_lan.htm

answered Oct 14 '11 at 13:35

haXs

106

score 0 · Answer 3 · answered Oct 14 '11 at 14:08

0

It's not black and white. For 10/100 its pairs 1/2 (transmit), and 3/6 (receive) - unless you're using equipment that can autonegotiate. For gigabit, all pairs are used. The above links are all also correct. I'm not sure about 10GigE.

answered Oct 14 '11 at 14:08

Matthew

2,757

Which cables are "active" in the UTP cable

3 Answers3