Ethernet cable connections

Straight-Through cable

PIN Wire color Wire color
1 orange/white orange/white
2 orange orange
3 green/white green/white
4 blue blue
5 blue/white blue/white
6 green green
7 brown/white brown/white
8 brown brown

Crossed-Over cable (10BASE-T or 100BASE-TX)

PIN Wire color Wire color
1 orange/white green/white
2 orange green
3 green/white orange/white
4 blue blue
5 blue/white blue/white
6 green orange
7 brown/white brown/white
8 brown brown

Crossed-Over cable (1000BASE-TX)

PIN Wire color Wire color
1 orange/white green/white
2 orange green
3 green/white orange/white
4 blue brown/white
5 blue/white brown
6 green orange
7 brown/white blue
8 brown blue/white

100BaseTX Distance limits

FromToMax distance
switch hub100m ~ 328'
hub hub5m ~ 16.4'
swith or hubworkstation100m ~ 328'

No more than two hubs should be uplinked in a row in a 100BaseTX network