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A data Cable comes in a range of varieties to cater for different kinds and levels of data transmission. Data needs to be carried from a source to a destination, and this often has to travel a very long distance. When the transmission is wired the information travels through a cable, the three main kinds of these cables are the Twisted Pair cable, Coaxial cable, and Fibre optic cable.
Twisted-pair cable consists of two copper conductors, with each one with its own plastic insulation. They are then twisted arou
nd each other, one of the conductors carries the signal and the other is used as a ground reference.
Twisting these together means that they’re both equally affected by external influences, meaning unwanted signals are cancelled out at the receiver differentiates the difference between signals in two wires. Twisted pair cables can be either UTP (unshielded twisted pair) or STP (shielded twisted pair) which has an extra metal sheath over the pair of connectors; however his is absent in UTP cable and the most common of this kind of connector is RJ45.
Coaxial Cables can carry higher frequency signals than the twisted pair cables, Coax has central core conductors of solid wire enclosed within an insulator, which is in turn covered by a plastic covering. Although the cables have a higher bandwidth its attenuation is a lot higher when compared to twisted-pair cables . It’s widely used throughout digital telephone networks where single cables can normally carry around 600mps. Cable TV networks and traditional Ethernet cables also utilise this cable.
Fibre-Optic Cables are the latest in Data transmission cables, and transfer signals in the form of light, allowing for extremely fast speeds. These consist of two main components; the core and the cladding the core is a dense glass or plastic which the information is sent through. The cladding protects the core as a cover. Differences in density which gradually decreases from the centre of the core to the edge of the cladding.
Hopefully you now know the difference between Data cables, and you can now select the one that suits your needs!