RJ11 ⇔ RJ45 - Know everything !

an adapter RJ11 to RJ45
an adapter RJ11 to RJ45

RJ11 ⇔ RJ45



The telephone cable that arrives at the subscriber's home is called 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......
, Registered Jack 11, it has 4 conductors grouped into 2 colored pairs. The socket consists of 6 physical positions and 4 electrical contacts of which only 2 are used (6P2C).
These two central contacts are used for the telephone line.

RJ45
RJ45
This is the network standard that allows internet connection. This type of cable has 8 electrical connection pins. It is also called ETHERNET cable or 8P8C connector (8 positions and 8 electrical contacts).
It is this standard that allows internet connection. This connector is physically compatible with the RJ11 connector if using an adapter. On 10/100 Mbps RJ45 computer wiring, only 4 1~2 and 3~6 pins are u......
Registered Jack 45 has 8 positions and 8 electrical contacts (8P8C), this connector is commonly used for Ethernet connections, i.e. networks, especially to connect computers to the 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......
.
The right RJ45
RJ45
This is the network standard that allows internet connection. This type of cable has 8 electrical connection pins. It is also called ETHERNET cable or 8P8C connector (8 positions and 8 electrical contacts).
It is this standard that allows internet connection. This connector is physically compatible with the RJ11 connector if using an adapter. On 10/100 Mbps RJ45 computer wiring, only 4 1~2 and 3~6 pins are u......
cable is used to connect a computer to a Hub or Switch. The cross-wire RJ45
RJ45
This is the network standard that allows internet connection. This type of cable has 8 electrical connection pins. It is also called ETHERNET cable or 8P8C connector (8 positions and 8 electrical contacts).
It is this standard that allows internet connection. This connector is physically compatible with the RJ11 connector if using an adapter. On 10/100 Mbps RJ45 computer wiring, only 4 1~2 and 3~6 pins are u......
cable is usually used to connect two Hubs or two Switches or two computers.
wiring RJ11 to RJ45
wiring RJ11 to RJ45

Compatibility between RJ11 and RJ45

All strands of RJ-type cables go in pairs and are twisted together along the entire length of the sheath, this technique is used to improve signal quality.

Most wired Ethernet network communications are routed on a Category 5 or Category 6 RJ45
RJ45
This is the network standard that allows internet connection. This type of cable has 8 electrical connection pins. It is also called ETHERNET cable or 8P8C connector (8 positions and 8 electrical contacts).
It is this standard that allows internet connection. This connector is physically compatible with the RJ11 connector if using an adapter. On 10/100 Mbps RJ45 computer wiring, only 4 1~2 and 3~6 pins are u......
cable with a modular 8P8C plug at each end.
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......
telephone cable that arrives at the subscriber has 4 contactors in a modular 6P2C card. Only the two central contactors are used for the line.

Warning : mechanically the male 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 does not fit into the female RJ45
RJ45
This is the network standard that allows internet connection. This type of cable has 8 electrical connection pins. It is also called ETHERNET cable or 8P8C connector (8 positions and 8 electrical contacts).
It is this standard that allows internet connection. This connector is physically compatible with the RJ11 connector if using an adapter. On 10/100 Mbps RJ45 computer wiring, only 4 1~2 and 3~6 pins are u......
connector because of the thick right and left edges.

The RJ45 connector has 8 positions :

Position TWISTED PAIR COLOR TWISTED PAIR NUMBER
1 WHITE / GREEN 3
2 Green 3
3 ORANGE WHITE 2
4 Blue 1
5 WHITE/BLUE 1
6 Orange 2
7 WHITE / BROWN 4
8 Brown 4

The RJ11 connector has 6 positions :

Position R/T TWISTED PAIR COLOR TWISTED PAIR NUMBER
1 T WHITE / GREEN 3
2 T WHITE / ORANGE 2
3 R Blue 1
4 T WHITE/BLUE 1
5 R Orange 2
6 R Green 3

wiring RJ45 to RJ11
wiring RJ45 to RJ11

Connection RJ11 to RJ45

To connect these two elements we use an adapter that requires no power and guarantees physical and electrical compatibility. These adapters are easily found on the 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......
and are cheap. You can also make this type of adapter yourself.

On 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......
socket, the two contacts of the center, numbered 2 and 3, are used as a telephone line, they correspond to the twisted pair 1 of blue and white/blue color.

On an RJ45
RJ45
This is the network standard that allows internet connection. This type of cable has 8 electrical connection pins. It is also called ETHERNET cable or 8P8C connector (8 positions and 8 electrical contacts).
It is this standard that allows internet connection. This connector is physically compatible with the RJ11 connector if using an adapter. On 10/100 Mbps RJ45 computer wiring, only 4 1~2 and 3~6 pins are u......
socket, during a 10/100 Mbps computer wiring, only the four 1-2 and 3-6 pins are used to transmit the information. During a computer wiring in 1000 Mbps, the 8 pins are used
For the telephone connection it is the two contacts of the center, numbered 4 and 5 of the twisted pair 1, blue and white/blue, of the RJ45
RJ45
This is the network standard that allows internet connection. This type of cable has 8 electrical connection pins. It is also called ETHERNET cable or 8P8C connector (8 positions and 8 electrical contacts).
It is this standard that allows internet connection. This connector is physically compatible with the RJ11 connector if using an adapter. On 10/100 Mbps RJ45 computer wiring, only 4 1~2 and 3~6 pins are u......
that serve.

Electrical adaptation between RJ11 and RJ45

Position RJ45 Position RJ11 RJ11 twisted pair no. Number for wiring at RJ45 RJ45 twisted pair number
1 3
2 1 3 3
3 2 2 7 2
4 3 1 4 1
5 4 1 5 1
6 5 2 8 2
7 6 3 4
8 4

wiring RJ45 to T or gigogne
wiring RJ45 to T or gigogne

Adapter DIY

It is possible to make your own adapter RJ11 RJ45 as shown in this video Youtube.



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