Ethernet Crossover cable

JM Network Products Ltd

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How to wire a "Crossover" Cable.
(EIA 568-B*)

Connector #1	Connector #2
1 WHT/ORG 2 ORG/WHT 3 WHT/GRN 4 BLU/WHT 5 WHT/BLU 6 GRN/WHT 7 WHT/BRN 8 BRN/WHT	1 WHT/GRN 2 GRN/WHT 3 WHT/ORG 4 BLU/WHT 5 WHT/BLU 6 ORG/WHT 7 BRN/WHT 8 WHT/BRN

USOC crossover cables are like this:

1 WHT/BRN
2 WHT/GRN
3 WHT/ORG
4 WHT/BLU
5 BLU/WHT
6 ORG/WHT
7 GRN/WHT
8 BRN/WHT

8 WHT/BRN
7 WHT/GRN
6 WHT/ORG
5 WHT/BLU
4 BLU/WHT
3 ORG/WHT
2 GRN/WHT
1 BRN/WHT

Colour abbreviations:
WHT-WHITE
BRN-BROWN
ORG-ORANGE
GRN-GREEN
BLU-BLUE

The first colour listed in the colour pair is the dominant colour of the wire.
In other words, WHT/ORG is a white wire with orange stripes.

Typical RJ45 Plug Contact side.	RJ45 plug with cable inserted looking from the contact side. This plug is wired to 568 A	This picture shows where pin 1 and 8 are located.	A typical Far Eastern crimp tool. These are available for various plugs including RJ45 and RJ11.

Disclaimer:
The information shown on this page could affect any system into which they are connected, it is the responsibility of the recipient to check that connections are correct and that they will in no way affect it's systems and data. JM Network Products Ltd accepts no responsibility for any loss or consequential damage arising in any way from using the above information.