Fiber patch cords are used to make patch cords from devices to fiber cabling links. A thicker protective layer is generally used for the connection between the optical transceiver and the terminal box.
Pigtail fiber is also called pigtail wire. There is a connector at one end only, and the other end is a broken end of a fiber optic core. It is connected to the core of other fiber optic cables by welding. It often appears in the fiber optic terminal box. It is used to connect fiber optic cables with fiber optic transceivers. (couplers, jumpers, etc. are also used).
The fiber optic connector is a device for detachable (active) connection between the optical fiber and the optical fiber. It precisely butts the two end faces of the optical fiber so that the optical energy output from the emitting optical fiber can be coupled to the receiving optical fiber to the utmost extent. It also minimizes the impact on the system due to its involvement in the optical link, which is a basic requirement for fiber optic connectors. To a certain extent, fiber optic connectors also affect the reliability and performance of optical transmission systems.