SMC Networks SMC2555W-AG manual Twisted-Pair Cable Assignments, Straight-Through Wiring

Twisted-Pair Cable Assignments

Straight-Through Wiring

Because the 10/100 Mbps port on the access point uses an MDI pin configuration, you must use “straight-through” cable for network connections to hubs or switches that only have MDI-X ports. However, if the device to which you are connecting supports auto-MDIX operation, you can use either “straight-through” or “crossover” cable.

EIA/TIA 568B RJ-45 Wiring Standard 10/100BASE-TX Straight-through 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		8

White/Brown Stripe

Brown Stripe

Crossover Wiring

Because the 10/100 Mbps port on the access point uses an MDI pin configuration, you must use “crossover” cable for network connections to PCs, servers or other end nodes that only have MDI ports. However, if the device to which you are connecting supports auto-MDIX operation, you can use either “straight-through” or “crossover” cable.

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		8

White/Brown Stripe

Brown Stripe

B-3