What is rj45 and rj11

Some switches have RJ45 as well as SFP fiber ports and hence these can be used in fiber networks as well. So, these are typically used for data communication networks where IP voice telephony may also be there. Know the Difference Between RJ45 Port and RJ11 Port Right from the good old days of analog telephones and faxes, cables and connectors have been an integral part of network communication.

With the advancements in electronics, internet technologies, and the importance of data communication apart from voice, the demand for private business networks, and subsequently the required devices has only grown. RJ11 jack and RJ45 jack connectors have been there for a very long time, and in fact RJ45 is still used in copper cable data communication networks. RJ basically stands for Registered Jack, and as the numbers in the terms imply, RJ11 is much older than the later.

Using 8 contacts allows for greater bandwidth so RJ45 is used for data-intensive applications like Ethernet and can support bandwidth up to 10Gbps.

Overall bandwidth is, of course, contingent upon what other components of the network such as cabling or routers can support. With only 2 of the 6 available connection points, the RJ11 plug supports limited-bandwidth applications. This includes phone lines and ADSL connections. All three jack types are used to connect phones—for one-, two-, and three-line service respectively. These are all modular connectors with 6 available positions.

The RJ11 technically uses the center 2 contacts of 6 available, and is used for wiring a single phone line. RJ14 is similar to RJ11 but is wired for two phone lines; it uses a 6P4C configuration where 4 connectors out of the 6 positions are used.

RJ25 uses all 6 of the available positions 6P6C and is able to connect 3 lines. RJ22 , also called an RJ10 , is the smallest of the modular plugs. It has a 4P4C configuration and is used in handset cords. They are used to connect a phone line with the key telephone system , small exchange-like systems used by businesses to connect to the carrier on the outside and create a network of phones and extensions on the inside.

Share this comparison:. If you read this far, you should follow us:. Diffen LLC, n. These connectors can be differentiated by their size, the number of pin and structure where RJ45 has a larger size and number of pins as compared to the RJ11 connector.

RJ45 and RJ11 are the very common RJ ports which are used for different purposes, RJ45 is newer, modular, self-securing and compact technology used for connecting the ethernet cables to different electronic devices. The RJ45 is an 8 pin connector used to attach the ethernet interfaces. It is known as an 8P8C connector , which means that it contains 8 pin positions among which all of them are connectable. RJ45 describes the physical structure of the connector and how the links are wired from one end to the other.

We can not use coaxial connectors RG6 and RG11 and non-modular connector DB25, instead, RJ45 is utilized by several network interface controller cards for attaching to networks like Ethernet. It falls in the class of category 5 cables, However; RJ45 does not match the TIA standard and said to be incorrect with respect to a generic 8P8C connector. The RJ45 connector has 8 pins which are connected to the 8 coloured wires grouped into four pairs.