Speaking of fiber optic interfaces, they are physical interfaces used to connect fiber optic cables. This starts with fiber jumpers and fiber couplers.
The principle of optical fiber communication is to use the total reflection of light from the optically dense medium to the optically sparse medium. Optical fiber jumpers are used as jumpers from equipment to optical fiber wiring links, which involves interfaces, usually with SC, ST, LC, FC and other types.
What is a fiber optic jumper?
Optical fiber jumper connectors are a problem that users must consider when purchasing optical fiber jumpers. Understanding the meaning of various optical fiber jumper connectors can help users find the products they want faster.
FC fiber optic jumper
The external strengthening method is a metal sleeve, and the fastening method is a turnbuckle. The FC connector is generally used in telecommunication networks. There is a nut screwed onto the adapter. The advantage is that it is reliable and dust-proof, and the disadvantage is that the installation time is slightly longer. It is generally used on the ODF side (mostly used on distribution frames, and also mostly used in optical transceivers)

SC type fiber optic jumper
The connector connected to the GBIC optical module has a rectangular shell, and the fastening method is a plug-and-pull latch type, which does not need to be rotated. The SC connector is directly plugged and unplugged, which is very convenient to use, but the disadvantage is that it is easy to fall out (mostly used on routers and switches)
LC type fiber optic jumper
A connector for attaching SFP modules made with an easy-to-use modular jack (RJ) latch mechanism. (SFP optical module default LC interface)