Appendix A: Networking connection
NS3550-8T-2S Industrial Managed Switch User Manual
451
The standard RJ45 receptacle/connector:
2 1
3
6
1
2
3
6
2 1
3
6
There are eight wires on a standard UTP/STP cable and each wire is color-coded. The
following shows the pin allocation and the color of the straight cable and crossover
cable connection:
Straight Cable
SIDE 1
SIDE 2
SIDE 1
1 = White / Orange
2 = Orange
3 = White / Green
4 = Blue
5 = White / Blue
6 = Green
7 = White / Brown
8 = Brown
1 = White / Orange
2 = Orange
3 = White / Green
4 = Blue
5 = White / Blue
6 = Green
7 = White / Brown
8 = Brown
SIDE 2
Crossover Cable
SIDE 1
SIDE 2
SIDE 1
1 = White / Orange
2 = Orange
3 = White / Green
4 = Blue
5 = White / Blue
6 = Green
7 = White / Brown
8 = Brown
1 = White / Green
2 = Green
3 = White / Orange
4 = Blue
5 = White / Blue
6 = Orange
7 = White / Brown
8 = Brown
SIDE 2
Ensure that connected cables are with the same pin assignment and color as the above
diagram before deploying the cables into the network.
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8