How to crimp a cable RJ45 ?

What you need?

A reasonable length FTP cable
Two tips RJ45
A clip crimp

How to proceed?

Strip the cable to 2 cm at each end and separate the strands.


They are usually divided into 4 twisted pairs of colors:

Orange / orange-white
Green / green-white
Blue / white and blue
Brown / brown-white

Making a straight cable

To obtain a straight cable, the tips must be crimped typically the same way at each end by respecting the twisted pair size.



In general, the code used is:

1) orange-white
2) orange
3) green-white
4) Blue
5) blue-white
6) Green
7) brown-white
8) brown
For a crossover cable

To obtain a crossover cable, reverse the parts 1 / 2 and 3 / 6, so on the one hand the same cable as above, and the other as follows:

1) green-white
2) green
3) orange and white
4) Blue
5) blue-white
6) orange
7) brown-white
8) brown

The standard EIA / TIA 568 (A & B)

Straight cable

1) white-green 1) white-green
2) green 2) green
3) white-orange 3) white-orange
4) Blue 4) blue
5) white-blue 5) white-blue
6) Orange 6) orange
7) white-brown 7) white-brown
8) brown 8) brown

For crossover cable 10/100baseT

1) white-green 1) white-orange
2) Green 2) orange
3) white-orange 3) white-green
4) Blue 4) blue
5) white-blue 5) white-blue
6) Orange 6) green
7) white-brown 7) white-brown
8) brown 8) brown

To complete crossover cable or cross gigabit

On Gbic 1000BaseT eg

1) white-green 1) white-orange
2) Green 2) orange
3) white-orange 3) white-green
4) Blue 4) white-brown
5) white-blue 5) brown
6) Orange 6) green
7) white-brown 7) blue
8) Brown 8) white-blue

Note:

Many Gigabit (10/100/1000 multi speed) are auto MDI / MDIX and automatically adapt to the type of cable connected.

An image to better understand the coding