Detailed Explanation Of Fiber Optic Jumper Structure And Classification

Fiber optic jumper (also known as fiber optic connector) refers to the installation of connector plugs at both ends of an optical cable to achieve active connection of the optical path; If one end is equipped with a plug, it is called a tail fiber. Fiber optic jumpers are similar to coaxial cables, except they do not have a mesh shielding layer. The center is a glass core for light propagation. It is mainly used to achieve non permanent fixed connections between devices, between devices and instruments, between devices and optical fibers, and between optical fibers. It is an indispensable passive component in optical fiber communication systems.
With the rapid development of Internet information, optical fiber has been widely used due to its high speed and high speed. As an important device used to realize the active connection of optical path, its optical fiber jumper has always been an important guest in data centers, fiber to the home, local area networks and other industries. Since the popularity of optical fiber jumper, most people still have many questions and problems about the basic knowledge of optical fiber jumper. Next, we will further understand the structure, classification, characteristics, applications and other aspects of optical fiber jumper.
The structure of fiber optic jumpers
In multimode optical fibers, the diameter of the core ranges from 50 μ m to 65 μ m, roughly equivalent to the thickness of human hair. The diameter of single-mode fiber cores ranges from 8 μ m to 10 μ m. The core is surrounded by a glass envelope with a lower refractive index than the core to keep the optical fiber inside the core. On the outside is a thin plastic jacket used to protect the envelope.
Classification of Fiber Optic Jumpers
Fiber optic jumpers can be divided into common "single-mode fiber optic jumpers" and "multi-mode fiber optic jumpers" according to different transmission media.
Single mode fiber: Generally, fiber jumpers are represented in yellow, and connectors and protective sleeves are represented in blue; The transmission distance is relatively long.
Multi mode fiber: Generally, fiber jumpers are represented in orange, while some are represented in gray. Connectors and protective covers are made in beige or black; The transmission distance is relatively short.
According to the different structures of the connectors, they can be divided into various forms such as FC fiber jumpers, SC fiber jumpers, ST fiber jumpers, LC fiber jumpers, MTRJ fiber jumpers, MPO fiber jumpers, MU fiber jumpers, SMA fiber jumpers, FDDI fiber jumpers, E2000 fiber jumpers, DIN4 fiber jumpers, D4 fiber jumpers, etc. Common fiber optic jumpers can also be divided into FC-FC, FC-SC, FC-LC, FC-ST, SC-SC, SC-ST, etc
① FC type fiber optic jumper: The external reinforcement method is to use a metal sleeve, and the fastening method is screw buckle. Usually used on the ODF side (most commonly on distribution frames)
② SC type fiber optic jumper: a connector for connecting GBIC optical modules. Its housing is rectangular and the fastening method is plug and pin type, which does not require rotation. (Most commonly used on routers and switches)
③ ST type fiber optic jumper: commonly used in fiber optic distribution frames, with a circular outer shell and fastened using screw fasteners. (For 10Base-F connections, connectors are usually ST type. Commonly used in fiber optic patch panels)
④ LC type fiber optic jumper: a connector for connecting SFP modules, made using a modular jack (RJ) latch mechanism that is easy to operate. (Commonly used routers)