Huawei R240D Hardware Installation page 50

R240D
Hardware Installation and Maintenance Guide
Testing the Connection of Assembled Cables
Context
Huawei provides two types of Ethernet cables: straight-through cables and crossover cables.

Table 5-7 Connections of core wires in a straight-through cable
RJ45 Connector 1
2
1
6
3
4
5
8
7

Table 5-8 Connections of core wires in a straight crossover cable
RJ45 Connector 1
6
3
2
1
4
5
8
7
Figure 5-38 shows the pins of an RJ45 connector.
Issue 03 (2016-01-26)
Straight-through cables are connected in a one-to-one manner. They are used to connect
terminals such as a computer or switch to network devices. Table 5-7 lists the
connections of core wires in a straight-through cable.
RJ45 Connector 2
2
1
6
3
4
5
8
7
Crossover cables are connected in a crossover manner. They are used to connect
terminals such as two computers or switches. Table 5-8 lists the connections of core
wires in a crossover cable.
RJ45 Connector 2
2
1
6
3
4
5
8
7
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Core Wire Color
Orange
Orange-White
Green
Green-White
Blue
Blue-White
Brown
Brown-White
Core Wire Color
Orange
Orange-White
Green
Green-White
Blue
Blue-White
Brown
Brown-White
5 Appendix
Twisted or Not
Twisted
Twisted
Twisted
Twisted
Twisted or Not
Twisted
Twisted
Twisted
Twisted
44