Fiber patch cords are used to make patch cords from equipment to fiber optic cabling links. There is a thicker protective layer, which is generally used for the connection between the optical transceiver and the terminal box. Optical fiber jumpers (also known as optical fiber connectors) refer to the connector plugs installed on both ends of the optical cable to realize the active connection of the optical path; the plugs on one end are called pigtails. Fiber patch cords (Optical Fiber Patch Cord/Cable) are similar to coaxial cables, but without a mesh shield. At the center is the glass core where light travels. In a multimode fiber, the diameter of the core is 50 μm to 65 μm, which is roughly the thickness of a human hair.

Optical fiber jumpers are mainly divided into two categories:

Optical fiber jumpers can be divided into common silicon-based optical fiber single-mode and multi-mode jumpers according to different transmission media, and other optical fiber jumpers such as plastic as the transmission medium; according to the structure of the connector, it can be divided into: FC Jumper, SC jumper, ST jumper, LC jumper, MTRJ jumper, MPO jumper, MU jumper, SMA jumper, FDDI jumper, E2000 jumper, DIN4 jumper, D4 jumper, etc. form. The more common fiber jumpers can also be divided into FC-FC, FC-SC, FC-LC, FC-ST, SC-SC, SC-ST, etc.