A

PPENDIX

C

| Cables and Pinouts
Crossover Wiring
– 141 –
Figure 83: Straight Through Wiring
CROSSOVER WIRING

If the twisted-pair cable is to join two ports and either both ports 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 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.

Figure 84: Crossover Wiring
White/Orange Stripe
Orange
White/Green Stripe
Green
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8

EIA/TIA 568B RJ-45 Wiring Standard

10/100BASE-TX Straight-through Cable

EndA EndB
Blue
White/Blue Stripe
Brown
White/Brown Stripe
White/Orange Stripe
Orange
White/Green Stripe
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8

EIA/TIA 568B RJ-45 Wiring Standard

10/100BASE-TX Crossover Cable

EndA EndB
Green
Blue
White/Blue Stripe
Brown
White/Brown Stripe