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C
ABLES
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 the
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.
End A
B-4
EIA/TIA 568B RJ-45 Wiring Standard
10/100BASE-TX Crossover Cable
White/Orange Stripe
1
2
3
4
5
6
7
8
Figure B-3 Crossover Wiring
Orange
White/Green Stripe
Blue
White/Blue Stripe
Green
White/Brown Stripe
Brown
1
2
End B
3
4
5
6
7
8
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