Huawei 02130879 Datasheet download pdf (Page 37)

X1 Pin Tip Color X2 Pin

4 Blue 4

5 White and Blue 5

6 Green 6

7 White and brown 7

8 Brown 8

Table 4-3 describes the pin assignments of a crossover cable.

Table 4-3 Pin assignments of a crossover cable

X1 Pin Tip Color X2 Pin

1 White and orange 3

2 Orange 6

3 White and Green 1

4 Blue 4

5 White and Blue 5

6 Green 2

7 White and brown 7

8 Brown 8

NOTE

To achieve the optimum electrical transmission performance, ensure that the wires connected to pins 1 and 2

and to pins 3 and 6 are twisted pairs.

4.6 Optical Fibers

An optical fiber connects the optical interface of a device to an upstream device or optical

network terminal.

Applications

An optical fiber carries optical signals and transmits them over short distance. An optical fiber

connects the following:

l Optical interface on a board

l Optical distribution frame (ODF) or the optical interface on another device

Table 4-4 lists the classification of optical fibers.

Quidway S3700 Series Ethernet Switches

Hardware Description 4 Cables

Issue 03 (2012-07-20) Huawei Proprietary and Confidential

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Huawei 02130879 Datasheet Page 37