Optical fiber cables are divided into indoor optical cables and outdoor optical cables according to different natural environments. The center of the optical fiber cable is the optical fiber. The center of the optical fiber is usually a core made of glass. The core is surrounded by a glass envelope with a lower refractive index than the core, so that the optical signal entering the fiber core is reflected by the cladding interface, so that the light The signal propagates forward in the fiber core. Because the optical fiber itself is very fragile and cannot be directly applied to the wiring system, it is usually bundled with a protective casing and a tensile wire in the middle. This is the so-called optical cable, and the optical cable usually contains one or more optical fibers.
Features of indoor optical cable: The tensile strength of indoor optical cable is small and the protective layer is poor, but it is relatively lighter and more economical. Indoor optical cables are mainly suitable for horizontal wiring subsystems and vertical backbone subsystems. Outdoor optical cables have higher tensile strength, thicker protective layers, and are usually armored. Outdoor optical cables are mostly used in building complex subsystems, and can be used in outdoor direct burial, pipelines, overhead and underwater laying and other occasions.
Features of outdoor optical cable: It is mainly composed of optical fiber (glass filament as thin as hair), plastic protective sleeve and plastic outer skin. There is no metal such as gold, silver, copper and aluminum in the optical cable, and generally has no recycling value. Outdoor optical cables have higher tensile strength, thicker protective layers, and are usually armored (that is, wrapped with metal skins). Outdoor optical cables are mainly used for interconnection between buildings and between remote networks.
Outdoor optical cable is a communication line that realizes optical signal transmission. The cable core is composed of a certain number of optical fibers according to a certain method, and is covered with a sheath, and some are also covered with an outer sheath. Indoor optical cable is a kind of communication line in which a certain number of optical fibers form a cable core according to a certain method, which is covered with a sheath, and some are also covered with an outer sheath to realize optical signal transmission.
Post time: Sep-03-2022