Difference between RJ-11 and RJ-14

Difference between RJ 11 and RJ 14

RJ-11 and RJ-14 are two different types of telephone connectors. The difference between them is that the RJ-11 has a single pair at the center, while the RJ-14 has a 4 pair central cable.

The main difference between these two connectors is that the RJ-14 has four pairs of wires in its central cable, which allows for better signal quality over long distances.

RJ-11 and RJ-14 are two different types of telephone connectors. The difference between these two is the length of the wire that connects to the jack on the wall.

The RJ-11 connector is made up of a single wire that goes from one side of the connector to another. This type of connector is commonly used in North America and Europe. The RJ-14 connector has two wires, one going from one side to another and then back out into a second wire going out into a second phone line. This type of connector is more common in Asia, Africa, and South America.

RJ-11 is a type of connector used for telephone wiring in North America and Australia. The connector has eight wires and a center pin. The wires on either side of the center pin are connected to each other by crimping or soldering them together, while the center pin is connected to one wire on each side with a screw terminal.

RJ-14 is an alternative type of connector used for telephone wiring in Europe, Asia, and South America. It has six wires instead of eight and no ground wire on the center pin as opposed to RJ-11’s ground

The physical connectors known as registered jacks were created by Bell Systems in 1986 at the request of the US Federal Communication Commission. These telephonic lines have a unique serial number that allows them to be distinguished from each other and makes them unique for each user.

These are delivered by telephone services. Customers must maintain them. These were used to replace the companies’ protective couplets. There are many types and functions of registered jacks. RJ11 &RJ14 are two of these types.

RJ-11 Vs. RJ-14

RJ11 and RJ14 are different in that the positive and negative wires of RJ11 go to pins 3 and 4, respectively, whereas RJ14’s connects to pins 2 and 5. They only have one thing in common: they both have two terminals.

RJ11 or ‘Registered Jack 11’, is commonly known by the terms phone connector and modem port. The US Commission originally used these to connect telephones to modems, but they are not used to connect them to the internet. There are also RJ11w and RJ11s.

RJ14, or ‘ Registered Jack 14’, is also known by the two-wire connectors. They have two telephonic cables that can be connected to two phones. They technically have 6P4C connectors that convert into six pins. These, in turn, have four contacts. These connectors are used frequently in the US leased connections. They can also be used in US-manufactured modems.

What’s RJ11?

RJ11 is a registered Jack that is used to connect phones to the internet or modem. These connectors can be used as 6P2C connectors, but the outer connectors can be left unconnected so they can be used as 6P4C connectors.

These are the most common and popular types of registered jacks. These jacks are used in offices and houses where old telephone wire connections still exist. These jacks come in a variety of types and are often marked with suffixes such as letters.

RJ11s suffixes like RJ11c, RJ11c, and RJ11w indicate that the jack has an additional function. These jacks can be used when the telephone wire is hanging from the wall. The suffix RJ11c refers to the jack used for desktop connections.

Two-wire RJ11s with 6P4C connectors can be used to provide telephone handset services, while the three-wire RJ11s that have 6P6C connectors can be used for wall hanging services.

What’s RJ14?

RJ14, a registered Jack that was also found from RJ11, is more advanced than the series of registered jacks.

These are used to connect modems that were US-generated or for lease connections.

They are 6P4C connectors, which contain six pins as well as four contacts.

As with all circuits, RJ14 also has positive and negative terminals. To complete the circuit, the negative wire is connected at pin 2. On the other hand, pin 5 is connected to the positive wire.

Difference between RJ11 and RJ14

  • They have different numbers of pins and contact. RJ11 has six contacts and RJ14 has six.
  • RJ14 can be used as a 6P4C connector because it has six pins and four contacts. They can be used as 6P4C connectors if the outer contacts are not connected to an RJ11, but they can also act as 6P2C connectors if they aren’t.
  • Each circuit must have both negative and positive wires. RJ11’s central wires are the terminal wires. The negative wire goes to pin 3, while the positive wire goes to pin 4. RJ14 however, has the positive and negative wires connecting to pin 2, while pin 5 is connected to pin 4.
  • The number of telephonic lines available and the wires that are connected to them determines the size of these registered jacks. RJ11 is limited to one phone, while RJ14 can hold two.


RJ is an acronym for “Registered Jacks” that describes a set of common telephonic connectors. These connectors were introduced first by the US Federal Communication Commissions, who ordered Bell Systems to order them. Each serial number was different in these RJs.

RJ11, also known as registered jack 11, is commonly known as modem port or phone connectors. These connectors are used to connect modems to computers in the United States. They can be 4 or 6. This connector is used to connect to the internet or the phone to a computer.

Another type of connector is the RJ14 or registered jack 14. It has six pins and four contacts. They are also known as two-wire connectors. These connectors are frequently used in leased connections in the United States.

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