SMC Networks SMC7824M/ESW B-4, Crossover Wiring

C ABLES
B-4
Crossover Wiring
If the twisted-pair cable is to join two ports and either both por ts are
labeled with an “X” (MDI-X) or neither port is labeled with an “X”
(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 connect ions.
Figure B-3 Crossover Wiring
White/OrangeStripe
Orange
White/GreenStripe
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
EIA/TIA568B RJ-45 Wiring Standard
10/100BASE-TX Crossover Cable
EndAEnd B
Green
Blue
White/BlueStripe
Brown
White/BrownStripe