RJ45
pin1 pin2 pin3 pin4 pin5 pin6 pin7 pin8
OW OR GRW BL BLW GR BRW BR
key
OW - orange/white
OR - orange
GRW - green/white
BL - blue
BLW - blue/white
GR - green
BRW - brown/white
BR - brown
Here's a page with some nice tables and graphics to help understand:
http://www.ertyu.org/~steven_nikkel/ethernetcables.html
