fiber optic patch cordUsed to make jumper wires from devices to fiber optic cabling links. It has a thick protective layer and is generally used for the connection between optical transceivers and terminal boxes. It is applied in some fields such as fiber optic communication systems, fiber optic access networks, fiber optic data transmission, and local area networks.

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. Optical Fiber Patch Cord/Cable is similar to coaxial cable, but without a mesh shielding layer. The center is a glass core for light propagation. 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.

The classification and overview of fiber optic jumpers are as follows

There are many types of fiber optic jumpers (also known as fiber optic connectors) that connect to optical modules, and they cannot be used interchangeably. SFP modules are connected to LC fiber optic connectors, while GBICs are connected to SC fiber optic connectors. Below are detailed explanations of several commonly used fiber optic connectors in network engineering:

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 of the ST type. Commonly used in fiber optic distribution frames

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)