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Figure 17: Straight-through Wiring
End A
C
W
ROSSOVER
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.
Figure 18: Crossover Wiring
End A
EIA/TIA 568B RJ-45 Wiring Standard
10/100BASE-TX Straight-through Cable
White/Orange Stripe
White/Green Stripe
1
2
3
4
White/Blue Stripe
5
6
7
8
White/Brown Stripe
IRING
EIA/TIA 568B RJ-45 Wiring Standard
10/100BASE-TX Crossover Cable
White/Orange Stripe
White/Green Stripe
1
2
3
4
White/Blue Stripe
5
6
7
8
White/Brown Stripe
Twisted-Pair Cable and Pin Assignments
Orange
Blue
Green
Brown
Orange
Blue
Green
Brown
– 55 –
| Cables
A
B
PPENDIX
1
2
End B
3
4
5
6
7
8
1
2
End B
3
4
5
6
7
8
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Troubleshooting
