Pin Order RJ45
(looking down with cable to you and pins on connector faceing up)
12345678

Our color scheme conforms to T568B

Pairs(pins)  	1(4/5) Blue		Crossover 		1(4/5) Brown
MDI		2(1/2) Orange		MDIX			3(1/2) Green
		3(3/6) Green					2(3/6) Orange
		4(7/8) Brown					4(7/8) Blue

Pair 2 and 3 are used for ethernet.
Pair 2 is transmit (tx+,tx-) Pair 3 is receive (rx+,rx-) (in MDI)
Pair 3 is receive (rx+,rx-) Pair 2 is transmit (tx+,tx-) (in MDIX)

Workstations are normally MDI (tx on pair 2, rx on pair 3)
Hubs/Repeates are normally MDIX (tx on pair 3, rx on pair 2)

	

	RJ45 pin colors		
	Straight through - both ends of cable 

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


	RJ45 pin colors		
	Cross over  - one end is done as stright through, the other as below

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