Ethernet cable pairs

[Masoud Pourshabanian]

Hello Everyone,

I know two wires are used to send data and two wires for receiving in10M Base and 100M Base Ethernet cable., but why two wires? Data are sent on two wires at the same time?

Thanks

[vivek srivastava]

You can refer below for details:

http://www.cisco.com/c/dam/en/us/support/docs/routers/10000-series-routers/46792-eth-cross-cable-pin-hub.gif

Basically UTP caries digital signals i.e. 0 and 1. for each TX and RX both have + and - i.e. TX+ and TX- at both end. + denotes 1 and - denotes 0. So tatal 4 wires.

[Masoud Pourshabanian]

Thanks for your accurate answer.