![]() Shielding also eliminates crosstalk (explained in KEY TERMS Chapter). ![]() This cable has a metal foil or braided-mesh covering which encases each pair of insulated conductors.Įlectromagnetic noise penetration is prevented by metal casing. The wires are twisted together in a helical form to reduce electrical interference from similar pair. Identification is the reason behind coloured plastic insulation.Ĭable with 2 pair use RJ-11 connector and 4 pair cable use RJ-45 connector. It is the most common type of telecommunication when compared with Shielded Twisted Pair Cable which consists of two conductors usually copper, each with its own colour plastic insulator. This cable is the most commonly used and is cheaper than others. It is the transmission media in which signals are confined to a specific path using wire or cable. Transmission m edium is the means through which we send our data from one place to another. Electromagnetic signals travel through vacuum, air or other transmission mediums to travel between one point to another(from source to receiver).Įlectromagnetic energy (includes electrical and magnetic fields) includes power, voice, visible light, radio waves, ultraviolet light, gamma rays etc.
0 Comments
Leave a Reply. |