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Fiber is preferred over electrical cabling when high bandwidth, long distance, or immunity to electromagnetic interference are required. Optical fiber is used by many telecommunications companies to transmit telephone signals, Internet communication, and cable television signals.
In the telcos, singlemode fiber is used to connect long distance switches, central offices and SLCs (subscriber loop carriers, small switches in pedestals in subdivisions or office parks or in the basement of a larger building). Practically every telco's network is now fiber optics except the connection to the home. Fiber to the home is not yet cost effective - especially since most homes do not want (nor are willing to pay) for the high speed services that would justify fiber optics.
Fiber Type vs. Speed and Distance
Is the fiber you select up to speed? Can it go the distance? Choosing the right Fiber Optic Cable Core Type for your present and future needs.In the chart provided, you can see different Fiber core types have vastly different limitations for speed and maximum distance.
Fiber 101: Best practices for purchasing fiber optic cables
There multiple types of fiber optic cable. Most enterprise implementations include one of three specific fiber optic cable models: single mode, multimode step index or multimode graded index.
Copper vs. fiber: Choosing the right cable for new networking installations
Both fiber and copper cabling solutions can support new and unique networking installations. However, before pursuing either, businesses should evaluate the benefits and challenges that accompany each.
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