Green Wing Securities


Understanding The Types Of Network Cables

We think communication and networking are of this present century, whereas it was started by Samuel Morse in 1844, the inventor of the telegraph. Even though it’s quite different now with computers the principles are the same. Morse code used a binary system with dots and dashes to represent letters and numbers. We have come further in technology as modern networks use zeros and ones to deliver the same result. The difference is only that the telegraph system in the 19th century was able to transmit four to five dashes and dots per second, whereas in the present day the networks communicate at a speed of up to 10Gbps.

Types of Network Cables

Network cables can be of different types. The kind of network cable chosen depends on the network’s topology, size, and physical layer. The type of network cables used is the main facet in networking, and now it’s even more difficult with the addition of new technologies. Network services like internet access, file sharing, emails, printing takes place over the network and reaches the user through these twisted pair Netwek Kabel, switches, fiber optics links etc. The different network cables are listed below:

Twisted Pair Cable
Coaxial Cable
Fibre Optic Cable
USB Cable
Crossover Cable
Wireless LAN Cables

Twisted Pair Cable

Invented by Alexander Graham Bell it’s a type of wiring wherein 2 copper wires of a single circuit are twisted together to reduce cross talk and electromagnetic induction. Sometimes they are installed in two or more pairs inside a single cable.

They are of 2 variations:

Unshielded Twisted pair (UTP) Cable – They are most commonly used for Ethernet connections and telephone connections also seen in security cameras, video applications.

Shielded Twisted Pair (STP) Cable

AlthoughUTP cables are cheaper they are not safe for radio and electrical frequency interference. In such cases, STP cables are used. As goes by the name the wires are shielded with foil. They come in 3 different configurations:

Each pair of wire is shielded in a foil

The whole set of wires is shielded as a group

A shield of foil around each individual pair, and a shield around the whole groups of wires.

Coaxial Cable

This consists of 4 parts: a conductor in the center covered plastic insulator over this is a braided metal sheet and enclosed in a rubber layer to provide insulation.

Each cable has a thin layer of copper standing out that can be screwed into any electronics.

They are 2 types: thin coaxial (thinnet) and thick coaxial (thicket).Coaxial cables are mainly used for audio and video purposes, TV and VCR.

Fibre Optic Cable

Instead of insulated copper wires like the above fiber optic cables use glass and light. It consists of a glass core in the center surrounded by layers of protective material. They transmit light rather than electrical signals thus it is suitable for long distance cable connections as there will not be electrical interference.

They are useful in network connections between buildings, in offices, help to increase speed and accuracy in data transmission, as lasers in surgeries.

USB Cable

Every person is well acquainted with this cable. USB (Universal Serial Bus) cables connect computers to peripheral devices like keyboard, mouse, cameras, printers, scanners, camcorders, phones and much more. They have the twisted pair wiring. Sometimes a dongle too can be connected directly to a USB port for Ethernet connections.

Crossover Cable

Also known as null modem cables, crossover cables are used to connect 2 network devices of the same type directly. In the earlier days, it was used to connect two computers. However, nowadays homes use routers for this purpose.

Wireless LANs
This is the age of wireless; everything has gone offline even networking. Networks have started operating without cables in wireless mode. WLANs use high-frequency radio signals, laser beams or infrared light beams for communication. WLAN is useful for connecting the LAN to laptops, computers, portable devices or remote computers. They are also helpful for old buildings where it is difficult to install cables.

Network cables are hardware used to connect devices to one another and transfer information from one network device to another. They are the backbone of a network’s infrastructure. In homes and industrial applications, power lines are used as networking cables.