Huawei S2720 Series Hardware Description page 48

S2720&S2750 Series Ethernet Switches
Hardware Description
Pin Assignments
Table 3-4
Table 3-4 Pin assignments of a straight-through cable
X1 Pin
1
2
3
4
5
6
7
8
Table 3-5
Table 3-5 Pin assignments of a crossover cable
X1 Pin
1
2
3
4
5
6
7
8
To achieve the best electrical transmission performance, ensure that the wires connected to pins 1 and 2 and to
pins 3 and 6 are twisted pairs.
Issue 08 (2015-02-12)
shows the pin assignments of a straight-through cable.
shows the pin assignments of a crossover cable.
NOTE
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Copyright © Huawei Technologies Co., Ltd.
Wire Color
White and orange
Orange
White and green
Blue
White and blue
Green
White and brown
Brown
Wire Color
White and orange
Orange
White and green
Blue
White and blue
Green
White and brown
Brown
X2 Pin
1
2
3
4
5
6
7
8
X2 Pin
3
6
1
4
5
2
7
8
3 Cables
40