DIFFERENCESTerms And Technology

Difference between RJ11 and RJ12 with table

We explain the difference between RJ11 and RJ12 with table. The telephone was one of the major innovations humanity experienced in the 20th century. This revolutionary device made lightning-fast two-way communication possible. However, the first telephones were connected to telephone lines by tapes. These connections were clumsy and are often easily broken. RJ11 and RJ12

The innovation of the registered cat brought a solution to this problem. A registered connector connection was robust and all telecommunications companies accepted its standard format. Rj11 and Rj12 are very common connectors that are often used in most telecommunications systems. By appearance, they both look the same. For this reason, many people cannot tell the difference between them.

The difference between Rj11 and Rj12 is that Rj11 is a patch connector that creates a bridged connection for a single phone line that uses a flat cable for phone and modem connections, while Rj12 is a patch connector that includes the phone system. centralized with individual telephone lines through a line circuit Standard 6-piece specialized RJ12 flat ribbon cables for centralized telephone network in offices.

Comparison table between RJ11 and RJ12 (in tabular form)

Comparison parameter Rj11 Rj12

What is it A patch connector that creates a bridged connection for a single telephone line A patch connector that includes a central telephone system with single telephone lines through a line circuit.
Full form Registered Jack 11 Registered Jack 12
Connector 6P2C and 6P4C 6P6C RJ11 and RJ12
Cable Flat anti-stain cable Standard Flat Ribbon Cables Specialized RJ12 6
Used in Telephone and Home Cable Modem Connections Offices for centralized telephone network

What is RJ11?

The full form of Rj11 is registered jack 11. It is a connection jack that creates a bridged connection for a single telephone line. The Rj11 connection connector is an analog system. This connection connector transmits low voltage electrical signals through it. Rj11 is used for bidirectional connection. It can transmit and receive low voltage electrical signals through it. RJ11 and RJ12

This socket uses a 6P2C connector. It has six slots for using connections. However, all the slots in this connector are not used for wiring. Most of the time, only two slots in the middle are used to bridge the connection. However, four 6P4C slots are used when low voltage power is sent to the phone’s indicator lamp.

The Rj11 connector was designed in the 70’s era to revolutionize the telecommunications system. It is a male part of the connection system. The connector needed to fit the Rj11 compatible female section to establish the connection. This connector facilitates the connection between two lines. Not all cables are designed to fit the Rj11 jack connector. Only 2-4 copper wire stained flat cable can be connected with Rj11 connector, and a crimping tool is required to make the connection permanent.

The Rj11 connector was accepted by all telecommunications companies in the world. The connector was able to standardize the telecommunication connector system for the world. Even in this digital age, all corded telephones and dial-up modems use this connector. RJ11 and RJ12

What is RJ12?

The full form of Rj12 is the registered 12 connector. It is a patch connector that includes a central telephone system with single telephone lines through a line circuit. It is a male plug and only connects to the Rj12 female jack to establish the connection.

The Rj12 uses a 6P6C connector. It has six slots for connection use and all six slots are used for communication. 6 standard specialized RJ12 flat ribbon cables are used for Rj12 connectors. This cable contains six thin copper wires and transmits and receives electrical signals through it.

In this standard flat cable, all six copper wires are color-coded. These colors are white, black, red, green, yellow, and blue. Unlike other systems of use, the Rj12 is completely different and complex. The cable technician has to set up the copper wear system in the correct order for it to work.

The Rj12 connector became popular in the 1980s when various corporate offices required a centralized telephone network for private use. This connector can easily configure a local area network in the office with telephones. Even in this digital age, many offices use this connector to configure their intercom system. RJ11 and RJ12

Main differences between RJ11 and RJ12

  • Rj11 is a patch connector that creates a bridge connection for a single telephone line, while Rj12 is a patch connector that includes a central phone system with single phone lines across a line circuit.
  • The full form of Rj11 is registered take 11. On the other hand, the full form of Rj12 is registered take 12.
  • Generally, Rj11 uses a standard 6P2C connector for a standard telephone connection. It only uses a 6P4C connector when low voltage power is required to send to the phone’s indicator lamp. But Rj12 connector always use 6P6C connector.
  • The Rj11 connector uses a flat staining cable, which contains two thin copper wires. However, the Rj12 connector requires specialized standard 6 RJ12 flat ribbon cables; contains six color-coded thin copper wires. RJ11 and RJ12
  • The Rj11 connector is used in home cable modem and telephone connections. But the Rj12 connector is only used for centralized office telephone networks.

Final Thought

The Registered Invention Cat was truly a revolutionary event. This connector brought standardization in the telecommunications industry. Before the advent of registered jack, parts of each phone company were different from others. The registered connector set a standard for all telephone companies.

Rj11’s simplistic design was really brilliant. Easily plugged in with all phone jacks. It was also a very rugged design for normal home phones and modems. Use a normal flat spot cable for the connection. This cable contains two thin copper wires for bi-directional analog communication. RJ11 and RJ12

However, the design of Rj12 is very complicated. Specialized RJ12 6 flat ribbon standard cables are required for this connector. This cable comes with a six color coded copper wire and the technician must place all color coded cables in the correct order for a proper connection. Normally, this cat is not used in normal houses. Instead, it is used in most offices for a centralized telephone communication system.

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