RJ45 - Know everything !

Connector RJ45
Connector RJ45

RJ45



It is this standard that allows internet
Triple Play
ADSL (Asymmetric Digital Subscriber Line) is currently the most widely used technology for Internet access by individuals. Although it was not historically on this type of technology that the Triple Play offers were developed, that today is the first provider of this kind of offer.
ADSL is a technology developed to be able to pass data through the telephone lines (this allows then to re - use a network of alre......
connection. This connector is physically compatible with the RJ11
RJ11
RJ11 – Regitered Jack 11 – is used for the landline. It is an international standard for connecting the fixed telephone to the telecommunications network.
RJ11 uses a 6-slot connector. In this one RJ11 has 6 slots (positions) and two drivers, the standard is written 6P2C. The information transmitted on the line can be digital (DSL) or analog. The telephone cable that arrives at the subscriber has 4 cond......
connector if using an adapter.

On 10/100 Mbps RJ45 computer wiring, only 4 1~2 and 3~6 pins are used to transmit information.
In 1000 Mbps (1Gbps) transmission, the 8 socket pins are used.
Two RJ45 wiring standards are mainly common to wire the sockets : T568A and T568B.
These standards are very similar : only pairs 2 (orange, white~orange) and 3 (green, white~green) are changed.
RJ45 internet port of a laptop
RJ45 internet port of a laptop

RJ45 right :

The right cable (marked PATCH CABLE or STRAIGHT~THROUGH CABLE) is used to connect a device to a network hub or network switch.

T568A right

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 MARRON 8 MARRON

RJ45 wiring scheme straight and crossed
RJ45 wiring scheme straight and crossed

T568B right

RJ45 cross, definition :
The crossover cable (marked CROSSOVER CABLE) is usually used to connect two hubs or network switches.
1 WHITE / ORANGE 1 WHITE / ORANGE
2 ORANGE 2 ORANGE
3 WHITE / GREEN 3 WHITE / GREEN
4 BLUE 4 BLUE
5 WHITE/BLUE 5 WHITE/ BLUE
6 GREEN 6 GREEN
7 WHITE/BROWN 7 WHITE / BROWN
8 MARRON 8 MARRON

T568A crossed

1 WHITE / GREEN 1 WHITE / ORANGE
2 GREEN 2 ORANGE
3 WHITE/ ORANGE 3 WHITE / GREEN
4 BLUE 4 WHITE/MARRON
5 WHITE/BLUE 5 BROWN
6 ORANGE 6 GREEN
7 WHITE/BROWN 7 BLUE
8 BROWN 8 WHITE / BLUE

T568B crossed

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 MARRON 8 MARRON

Connector RJ45
Connector RJ45

So for a cross~link :

The rJ45 links of the transmitter and receiver are reversed :

The transmission pair on one side is connected to the receiving pins on the other side.
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