Communication Cables – Coaxial, Drop, UTP and Fibre Optic Cables

There are numerous types of Communication Cables available in the market today, but we depend on some types of Cables like Coaxial Cables, Drop Cables, UTP Cables and Fibre Optic Cables more often. These Cables are applicable in different types of data transfer in our day to day life.

Coaxial cable is called “coaxial” because it includes one physical channel that carries the signal surrounded (after a layer of insulation) by another concentric physical channel, both running along the same axis. The outer channel serves as a ground. Many of these cables or pairs of coaxial tubes can be placed in a single outer sheathing and, with repeaters, can carry information for a great distance.

PVC jacketed Bus Drop Cable is intended for use as drop cables from overhead busways and allows easy relocation of plant equipment.Resistant to oils, lubricants, acids, alkalies, ozone, water and abrasion. Individual grounds per conductor. Conductors, grounds and filler are cabled for flexibility then wrapped in a separator to aid strippability. Rated for use in wet or dry locations.

Unshielded Twisted Pair (UTP) cable contains 4 twisted pairs of wires, a total of 8 wires. The strands that constitute each wire will either be a single strand or multiple strands, usually referred to as solid or flex. Typically the solid is used to run through walls and ceilings and the flex is used to make drop cables (the cable from the wall plate to the desktop computer) and patch cables (the cable from the patch panel to the hub). Whether the exterior portion of the cable that contains the 4 twisted pairs, the jacket, is Plenum grade or Non-plenum grade is very important, it refers to the Fire Codes.The pairs of wires in UTP cable are colored so that one can identify the same wire at each end. Furthermore, they are usually color coded by pair so that the pairs can also be identified from end to end.

Fiber Optic Cables use light pulses to transmit information down fiber lines instead of using electronic pulses to transmit information in copper lines.Light pulses move easily down the fiber-optic line because of a principle known as total internal reflection. “This principle of total internal reflection states that when the angle of incidence exceeds a critical value, light cannot get out of the glass; instead, the light bounces back in. When this principle is applied to the construction of the fiber-optic strand, it is possible to transmit information down fiber lines in the form of light pulses.