Optical Fiber Patch Cable , that is, the optical fiber connector connected to the optical module, is the end device of the optical fiber. Optical fiber jumpers are used to make jumpers from equipment to optical fiber wiring links. They have a thicker protective layer and are generally used for the connection between optical transceivers and terminal boxes.
Optical fiber jumpers (also known as optical fiber connectors), that is, optical fiber connectors connected to optical modules, also have many types, and they cannot be mutually used. The SFP module is connected to the LC fiber optic connector, and the GBIC is connected to the SC fiber optic connector. The following is a detailed description of several commonly used optical fiber connectors in network engineering:
1. ST type optical fiber jumper: often used in optical fiber distribution frame, the shell is round, and the fastening method is turnbuckle. (For 10Base-F connection, the connector is usually ST type. Commonly used in optical fiber distribution frame)

2. FC type optical fiber jumper: The external strengthening method is a metal sleeve, and the fastening method is a turnbuckle. Generally used on the ODF side (most used on the distribution frame)
3. LC-type optical fiber jumper: the connector for connecting the SFP module, which is made by the easy-to-operate modular jack (RJ) latch mechanism. (Routers are commonly used)
4. SC type optical fiber jumper: the connector for connecting the GBIC optical module, its shell is rectangular, and the fastening method is a plug-in latch type, without rotation. (Most used on router switches)
5. MTP type optical fiber jumper: MTP stands for multi-core termination push-in connector. MTP jumper has many cores and small size. The most commonly used are 12 cores and 24 cores. It is used in the environment of high-density integrated optical fiber line in the wiring process.