SMC Networks 10G - Manual (Page 61)

T
WISTED
-P
AIR
C
ABLE AND
P
IN
A
SSIGNMENTS
B-3
Figure B-2 Straight-through Wiring
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 these
switches, you can use either straight-through or crossover cable to connect
to any device type.)
We recommend connecting all four wire pairs as shown in the following
diagram to allow the same cabling to used for Gigabit Ethernet networks.
Figure B-3 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
End A End B
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
Green
Blue
White/Blue Stripe
Brown
White/Brown Stripe