Appendix A: Networking connection
Pin number
1
2
3
4, 5
6
7, 8
The standard RJ45 receptacle/connector:
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
1
2
3
4
1
2
3
4
Crossover Cable
1
2
3
4
1
2
3
4
Ensure that connected cables are with the same pin assignment and color as the above
diagram before deploying the cables into the network.
492
MDI
Tx + (transmit)
Tx - (transmit)
Rx + (receive)
Rx + (receive)
2 1
6
3
SIDE 1
5
6
7
8
5
6
7
8
SIDE 2
SIDE 1
5
6
7
8
5
6
7
8
SIDE 2
MDI-X
Rx + (receive)
Rx - (receive)
Tx + (transmit)
Not used
Tx + (transmit)
Not used
6
3
2 1
6
3
2
1
SIDE 1
1 = White / Orange
2 = Orange
3 = White / Green
4 = Blue
5 = White / Blue
6 = Green
7 = White / Brown
8 = Brown
SIDE 1
1 = White / Orange
2 = Orange
3 = White / Green
4 = Blue
5 = White / Blue
6 = Green
7 = White / Brown
8 = Brown
SIDE 2
1 = White / Orange
2 = Orange
3 = White / Green
4 = Blue
5 = White / Blue
6 = Green
7 = White / Brown
8 = Brown
SIDE 2
1 = White / Green
2 = Green
3 = White / Orange
4 = Blue
5 = White / Blue
6 = Orange
7 = White / Brown
8 = Brown
NS3552-8P-2S-V2 User Manual
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