The eight-pin RJ45 connector is a standardised interface which often connects a computer to a local area network (LAN). This type of connector was originally developed for telephone communications but is now used in a range of applications. The abbreviation, RJ45, stands for Registered Jack-45.

What is RJ45 and what are its uses?

An 8-pin/8-position plug or jack is commonly used to connect computers onto Ethernet-based local area networks (LAN). Two wiring schemes–T568A and T568B–are used to terminate the twisted-pair cable onto the connector interface.

What is RJ45 network connector?

RJ45 is the most common twisted-pair connector for Ethernet cables and networks. RJ means “registered jack”, which is a standardized telecommunication network interface for connecting voice and data equipment to a service provided by a local exchange carrier or long-distance carrier.

Are RJ45 and Ethernet the same?

RJ45 is a kind of connector and is included in the definitions of telephone connectors. ... RJ45 connectors are often used for ethernet networking. Ethernet cables can also be called as RJ45 cables as they have an RJ45 connector on each end. These connectors have eight coloured wires and 8different pins.

What does an RJ45 plug into?

RJ45 connectors are commonly seen with Ethernet network cables. Ethernet cables with RJ45 connectors are also called RJ45 cables. These RJ45 cables feature a small plastic plug on each end, and the plugs are inserted into RJ45 jacks of Ethernet devices.

RJ45 Wiring & Ethernet Cables Explained

30 related questions found

Is RJ45 an Ethernet?

Ethernet cables come with RJ45 connectors on both ends. Because of this, an Ethernet cable is sometimes designated as an RJ45 cable. These cables are often used to connect computers onto Ethernet networks. The RJ-45 connector resembles a six-pin RJ11 connector, though the 45 is slightly wider.

Why is it called RJ45?

The “RJ” in RJ45 stands for Registered Jack, a standard designation that originated with the Universal Service Ordering Code (USOC) scheme of the Bell System back in the 1970s for telephone interfaces. ... This is along the same lines of what now has us referring to 8P8C twisted-pair Ethernet connectors as RJ45.

Where is RJ45 used?

An RJ45 cable is fundamentally utilized to connect devices over an Ethernet connection. Devices like computers, printers, network storage devices, and cable or DSL modems are able to use an RJ45 connection. Being able to identify an RJ45 cable is necessary when trying to connect devices to a network.

Is CAT5e and RJ45?

CAT5e and RJ45 are two classifications of hardware for networks. Both are well-known components of Ethernet networks. The CAT5e classification of Unshielded Twisted Pair cable is the most widely implemented cable type for Ethernet networks. The regular connector for the UTP cable is called an RJ45.

Is WIFI faster than Ethernet?

Ethernet is typically faster than a Wi-Fi connection, and it offers other advantages as well. A hardwired Ethernet cable connection is more secure and stable than Wi-Fi. You can test your computer's speeds on Wi-Fi versus an Ethernet connection easily.

What is RJ port?

RJ45, which incidentally stands for registered jack 45, is the ubiquitous Ethernet style data port found on switches, routers and network cards. The RJ45 style connectors and ports are also commonly found on Ethernet, serial and ATM IMA cards and interfaces.

Which RJ45 is best?

Review: The Top 10 Best Ethernet Cables (2021)

• PatchSee Cat6 RJ45 Ethernet Cable. ...
• Cat5e RJ45 Flat Ethernet Cable. ...
• Excel Cat6A Unscreened U/UTP LSOH Booted Ethernet Cable. ...
• Cat6 RJ45 SFTP Shielded Ethernet Cable. ...
• Cat5e RJ45 LSOH Ethernet Cable. ...
• PatchSee Cat5e RJ45 Ethernet Cable. ...
• Cat5e RJ45 Shielded Ethernet Cable.

What does RJ45 look like?

RJ45 is a type of connector commonly used for Ethernet networking. It looks similar to a telephone jack, but is slightly wider. ... If you look closely at the end of an Ethernet cable, you can actually see the eight wires, which are each a different color. Four of them are solid colors, while the other four are striped.

How do RJ45 connectors work?

RJ45 plugs feature eight pins to which the wire strands of a cable interface electrically. Each plug has eight locations spaced about 1 mm apart into which individual wires are inserted using special cable crimping tools. The industry calls this type of connector 8P8C, shorthand for eight position, eight contact.

What is network connector?

A connector is a device that terminates a segment of cabling or provides a point of entry for networking devices such as computers, hubs, and routers.

What is Ethernet connection?

An Ethernet cable lets you physically connect your computer to the internet. Ethernet connections are almost always faster than Wi-Fi connections, and are usually more stable. You'll need to connect one end of the Ethernet cable to your router, and the other to your computer.

Which is better CAT 5 or Cat6?

The big difference between Cat5 and Cat6 cables is the amount of data that can be sent. Cat6 has a higher bandwidth compared to Cat5. You can compare this with a water pipe: more water can flow through a wide water pipe, should you compare it to a more narrow water pipe.

Is Cat7 better than Cat6?

The big difference between Cat6 and Cat7 is the speed and frequency. As you may have already seen, a Cat7 cable has a max. speed of 10.000 Mbit/s and a Cat6 cable has a max. ... A Cat7 cable will therefore be able to transfer data faster than a Cat6 cable.

What is the difference between CAT 5 and CAT 6 connectors?

The main difference between cat5 and cat6 cables is reduced “crosstalk” and faster speeds in the transferring of data and connection. ... Cat5 and cat6 cables both share the same end piece, the plug that connects them to their end destination, being a patch panel or a modem.

Which wires are used in RJ45?

The RJ45 data cables we use to connect computers to a Ethernet switch is straight-through cables. As noted above, the RJ45 cable uses only 2-pairs of wires: Orange (pins 1 & 2) and Green (pins 3 & 6). Pins 4, 5 (Blue) and 7, 8 (Brown) are NOT used.

How fast is RJ45?

This type of network cable is made up of four twisted pairs of copper wire terminated by an RJ45 connector, which has a bandwidth of up to 100 MHz, supports 10 or 100Mbps speed.

How many types of RJ45 connectors are there?

There are two RJ45 pinouts (T568A and T568B), and even though they are technically 8P8C connectors, it is very likely you will hear them strictly referred to as RJ45 connectors, and all documentation surrounding them will use the same terminology.

Who invented the RJ45?

Registered Jack connections began to see use after their invention in 1973 by Bell Labs. The specification includes physical construction, wiring, and signal semantics.

Does Ethernet use all 8 wires?

Gigabit ethernet (or 10/100/1000 Mbps) gets all its super-charged data power from using all four pairs, or all eight wires, when transferring the full 1000 Mbps of data from one computer to another.