are made with glass fibers. Provide very little variation in the signal they carry
over long distances. The full potential speed fiber optic cabling can carry has not been reached even with Gigabit technology. These cables have greater bandwidth than electrical transmission through wires.
Fiber Optic cabling is constructed of three concentric layers: The "core" is the central region of an optical fiber through which light is transmitted.
Mode
is a single electromagnetic field pattern that travels in fiber.
Single mode is an optical fiber, with a small core (2-9 microns that supports one mode). The
mode size (standard ie 8.3/125) is stamped on the yellow cable jacket. Singlemode is most commonly used for high speed, long distance applications.
Multimode
is an optical fiber with a core (25-200 microns) that supports several modes. The core commonly 62.5/125 or 50/125 is stamped on the cable jacket.
Always check equipment requirements or the fibre optic cable jacket to determine which core size you need. Multimode is most commonly used for lower speed, short distance applications.
Simplex cable has a single fiber Duplex has two fibers usually side by side in style.
Commonly used Fiber optic Connectors are ST,SC, LC and FC.
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