The standard cable, RJ45 pin assignment
There are 8 wires on a standard UTP/STP cable and each wire is color-coded. The
following shows the pin allocation and color of straight-through cable and crossover
cable connection:
Straight-through Cable
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Crossover Cable
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Figure A-1: Straight-through and Crossover Cable
Please make sure your connected cables are with same pin assignment and color
as the above picture before deploying the cables into your network.
26
The standard RJ45 receptacle/connector
SIDE 1
SIDE 2
SIDE 1
SIDE 2
SIDE 1
SIDE 2
1 = White/Orange
1 = White/Orange
2 = Orange
2 = Orange
3 = White/Green
3 = White/Green
4 = Blue
4 = Blue
5 = White/Blue
5 = White/Blue
6 = Green
6 = Green
7 = White/Brown
7 = White/Brown
8 = Brown
8 = Brown
SIDE 1
SIDE 2
1 = White/Orange
1 = White/Green
2 = Orange
2 = Green
3 = White/Green
3 = White/Orange
4 = Blue
4 = Blue
5 = White/Blue
5 = White/Blue
6 = Green
6 = Orange
7 = White/Brown
7 = White/Brown
8 = Brown
8 = Brown