Transition Networks SM24-1000SFP-AH, Installation Manual

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B-3
Twisted-Pair Cable and Pin Assignments
B
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
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 connections.
Figure B-3 Crossover Wiring
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
E nd A
E nd B
Green
Blue
White/Blue Stripe
Brown
White/Brown Stripe