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What Do Ethernet Cables Do and Work?

May. 26, 2022

Ethernet cables are a type of network cable. They are intended to be used with an Ethernet port. Ethernet ports can be found on routers, computers, TVs, and most devices that support the Internet and networking.
Hardwired devices have their advantages, including faster Internet and more reliable connections. It is often recommended to connect devices that are not mobile and to use WiFi for mobile devices.


What Do Ethernet Cables Do and Work?


What an Ethernet cable looks like

LAN cables look similar to telephone cables. Ethernet cable has twice as many wires as a telephone cable (8 to 4). The connector is slightly larger than the connector on a phone line.
Each cable ends in a small modular plug, usually a Registered Jack 45 (RJ45) connector. They have a small lever at the top that helps secure and unclip the Ethernet cable. When you push the cable into the Ethernet cable, it should snap into place. Sometimes there is an LED in the port, so the Ethernet jack will light up after a successful connection.
The length of the Ethernet cable may vary. Sizes usually start at about 0.3 meters and can go up to 30 meters or even further. It is also possible to cut the cables to the length you prefer.
They also come in a variety of different colors. There is no difference in the color of the cables. Many computer network administrators color coordinate their cables so that they can easily manage and maintain their networks. Sometimes, Internet service providers will provide different color cues so that the cues can be easily referenced by color


What Do Ethernet Cables Do and Work?


What does it do

Typically, Ethernet cables are used to provide Internet connectivity to connect devices to the local network. They plug into the Ethernet ports on various devices.
The most common use of an Ethernet cable is to connect a WiFi router or modem to an Internet entry port or phone line. It can also be used for hardwired devices such as TVs, computers and other devices that require the Internet or a network to work.



Cable Construction

Ethernet cables come in several different configurations. The most common construction is a twisted pair cable.
The two wires within the cable are twisted together. Twisted pair cables are the industry standard cable. They have the best results in terms of maximum length and speed drop. They are beaten only by fiber optic cables in terms of performance.
One reason for their quality is that the two cables transmit data in two directions, thus balancing the electric field. This reduces the electrical noise within the wire.
Electrical noise is any current or radio frequency that is unrelated to the data being carried. These additional signals usually interfere with the data being transmitted through the wires. Electrical noise can come from inside the cable or from outside. Ultimately, the more electrical noise there is, the lower the signal quality.
Twisted pair cables can be unshielded or shielded. Unshielded cables do not have a foil or braided shield around them. Although unshielded cables are much cheaper, the signal quality is degraded by electrical noise.
Shielded cables come with a braided or foil shield and are usually made of copper or other conductive polymers. Shielding reduces electrical noise and improves the quality of the connection.


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