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What is patch cord and its basic structure

2021-11-17
The patch cord is used as a jumper from the equipment to the optical fiber wiring link. It has a thick protective layer, which is generally used for the connection between optical transceiver and terminal box. It is used in optical fiber communication system, optical fiber access network, optical fiber data transmission, LAN and other fields

The patch cord (also known as optical fiber connector) refers to that connector plugs are installed at both ends of the optical cable to realize the active connection of the optical path; One end with a plug is called a pigtail. Optical fiber patch cord / cable is similar to coaxial cable, except that there is no mesh shielding layer. The center of the patch cord is a glass core for light propagation. In multimode fiber, the diameter of the core is 50 μ m~65 μ m. The diameter of the single-mode fiber core is 8 μ m~10 μ m. The core is surrounded by a glass envelope with a lower refractive index than the core to keep the optical fiber in the core. On the outside is a thin plastic jacket to protect the envelope.