Optical fiber jumper (also known as optical fiber connector) refers to the connector plug installed at both ends of the optical cable to realize the active connection of the optical path; the end with the plug is called a braid. Fiber optic patch cords are similar to coaxial cables, but without the mesh shield. In the center is the glass core for light propagation. It is mainly used to realize non-permanent fixed connections between equipment, equipment and instruments, equipment and optical fibers, and optical fibers and optical fibers in the system. It is an indispensable passive device in optical fiber communication system.
With the rapid development of Internet information, optical fiber has been widely used due to its high-speed and high-speed characteristics. As an important device to realize the active connection of optical paths, fiber optic jumpers have been used in data centers, fiber-to-the-home, LAN and other industries. Distinguished guests, since the popularity of fiber optic jumpers, most people still have many questions and problems about the basic knowledge of fiber optic jumpers.
The structure of fiber optic jumper
In a multimode fiber, the core has a diameter of 50 μm to 65 μm, about the thickness of a human hair. The diameter of the single-mode fiber core is 8 μm to 10 μm. The core is surrounded by a glass jacket with a lower index of refraction than the core to keep the fiber within the core. On the outside is a thin plastic jacket that protects the envelope.
Fiber Jumper
Classification of fiber optic jumpers
Optical fiber jumpers can be divided into common "single-mode optical fiber jumpers" and "multi-mode optical fiber jumpers" according to different transmission media.
Single-mode fiber (Single-mode Fiber): Generally, the optical fiber jumper is indicated by yellow, and the connector and protective sleeve are indicated by blue; the transmission distance is longer.
Multimode optical fiber: Generally, optical fiber jumpers are indicated in orange, and some are indicated in gray. The connector and protective cover are beige or black; the transmission distance is short.
According to the connector structure, it can be divided into: FC fiber jumper, SC fiber jumper, ST fiber jumper, LC fiber jumper, MTRJ fiber jumper, MPO fiber jumper, MU fiber jumper, SMA fiber jumper, FDDI fiber Jumper, E2000 fiber jumper, DIN4 fiber jumper, D4 fiber jumper and other forms. The more common fiber optic jumpers can also be divided into FC-FC, FC-SC, FC-LC, FC-ST, SC-SC, SC-ST, etc....
① FC fiber optic jumper: The external reinforcement method is a metal sleeve, and the fastening method is a turnbuckle. Generally used at the ODF end (the most used on the distribution frame)
②SC type optical fiber jumper: the connector connected to the GBIC optical module, its shell is rectangular, and the fastening method is plug-in, no need to rotate. (Multiple used on router switches)
③ST type optical fiber jumper: commonly used in optical fiber distribution frames, the outer shell is round, and the fastening method is a turnbuckle. (For 10Base-F connection, the connector is usually ST type. It is often used in fiber distribution frames)
④ LC type optical fiber jumper: the connector connected to the SFP module, adopts the modular jack (RJ) latch mechanism, and is easy to operate. (commonly used by routers)
