SMC Networks SMC8724ML3, SMC8748ML3 manual Figure B-3 Crossover Wiring

CABLES

Crossover Wiring

If the twisted-pair cable is to join two ports and either both ports are labeled with an “X” (indicating MDI-X) or neither port is labeled with an “X” (which indicates MDI), a crossover must be implemented in the wiring. (When auto-negotiation is enabled for any RJ-45 port on these switches, you can use either straight-through or crossover cable to connect to any device type.)

You must connect all four wire pairs as shown in the following diagram to support Gigabit Ethernet connections.

EIA/TIA 568B RJ-45 Wiring Standard 10/100BASE-TX Crossover Cable

		White/Orange Stripe
		Orange
	1	White/Green Stripe	1
End A	2		2
	3	Blue	3
	4		4
	5	White/Blue Stripe	5
	6	Green	6
	7		7
	8	White/Brown Stripe	8

End B

Brown

Figure B-3 Crossover Wiring

B-4