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.
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.
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.
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.
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.