SMC Networks VDSL2 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 this switch, 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	Blue	2	End B
	3		3
	4	White/Blue Stripe	4
	5		5
	6	Green	6
	7		7
	8	White/Brown Stripe	8

Brown

Figure B-3 Crossover Wiring

B-4