Don't you know the basic knowledge of network cable

Network cables, usually made of metal or glass, are used to carry information within a network. There are three common types of network cables: twisted pair, coaxial, and fiber optic (optical). A twisted pair is a data transmission line composed of many pairs of wires. It is characterized by low price, so it is widely used. Twisted pair is used to connect with RJ45 crystal head, there are two kinds of STP and UTP, and UTP is commonly used.

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A network cable is a cable that connects computers to computers, computers to other network devices. Commonly used network cables are twisted pair, coaxial thin cable and optical fiber.

It is relatively simple to use a thin coaxial cable for network connection, as long as each computer or network device is connected in series, but it is more troublesome to maintain, if something goes wrong, the entire network may be paralyzed. Add or remove a computer from the network, you must stop the work of the network, and wait until the computer is added or removed before continuing to use it. At the same time, this method must adopt a bus topology, which is rarely used now.

A twisted pair consists of four pairs of twisted copper wires covered with insulating material and wrapped in an insulating sheath. It reduces interference caused by clutter and suppresses attenuation of signals within the cable. If twisted pair is used, we can easily add or remove a computer in the network without interrupting the work of the network, and the maintenance of the network is relatively simple. If a network cable fails somewhere, it will only affect the twisted pair connection. computer or equipment, and will not cause the paralysis of the network. However, using twisted-pair wires requires adding a hub or switch to the network, which increases the cost of the network.

Key words:

Network cables,three common types

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