Category 5 Wiring Diagram (Standard Cable)

With the plug oriented so that the tab is facing down and you are looking through the non-tab side.
 

1	2	3	4	5	6	7	8
Orange w/white stripe	Orange	Green w/white stripe	Blue	Blue w/white stripe	Green	Red w/white stripe	Red

Category 5 Wiring Diagram (Crossover Cable)

Wire one side to the Standard Cable specifications. Wire the other end to the Crossover Specifications.
With the plug oriented so that the tab is facing down and you are looking through the non-tab side.
 

1	2	3	4	5	6	7	8
Green w/white stripe	Green	Orange w/white stripe	Blue	Blue w/white stripe	Orange	Red w/white stripe	Red