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Fiber Optic Adapter

Nov 24, 2017


Depending on the fiber connector, the fiber adapter provides the adapter for the fiber connector.

Applicable fiber optic connector models FC, SC, ST, LC, MTRJ, E2000 and so on.

Applicable fiber connector end with PC, UPC, APC and so on.

SC stands for Standard Connector.

ST stands for Straight Tip.

FC stands for Fiber Connector.

The "/" front indicates the applicable fiber optic connector model.

"SC" connector is a standard square connector, using engineering plastics, with high temperature, not easy oxidation. Transmission equipment side of the optical interface with SC connector.

The "LC" connector is similar in shape to the SC connector and smaller than the SC connector.

The "FC" connector is a metal connector, generally used on the ODF side, with more metal connectors than plastic.

There are many types of connectors, in addition to the three described above, there are MTRJ, ST, MU, the specific appearance, see the figure below.

/ "The back shows that the optical fiber connector cross-section process, that grinding method.

The "PC" is the most widely used in telecom operators' equipment with a flat connector cross-section.

The attenuation of "UPC" is smaller than that of "PC", which is generally used for equipment with special needs. Some foreign manufacturers use FC / UPC to skip fiber inside ODF frames, mainly to improve their own specifications of ODF devices.

"APC" said oblique 8 degree polishing, used widely in broadcasting and early CATV "APC" model, the pigtail head with angled end face, can improve the quality of television signals, mainly due to the television signal Is analog light modulation, when the coupling surface is vertical, the reflected light along the original path back. Due to the uneven distribution of the refractive index of the fiber will return to the coupling surface again, although the energy is small at this time but the analog signal can not be completely eliminated the noise, so equivalent to the original clear signal superimposed on a weak signal with time delay, Performance on the screen is ghosting. Pigtail headband tilt so that the reflected light does not return along the original path. General digital signal generally do not have this problem.

The optical fiber connector is a device that can be detached (movable) between the optical fiber and the optical fiber. The optical fiber connector precisely connects the two end faces of the optical fiber so that the optical energy output by the optical fiber can be coupled to the receiving optical fiber to the maximum extent, And minimizes the impact on the system due to its intervening optical links, which is a fundamental requirement for fiber optic connectors. To some extent, fiber optic connectors also affect the reliability and performance of optical transmission systems.

Fiber optic connectors according to the different transmission media can be divided into common single-mode silicon-based fiber optic connector, multi-mode connector, as well as other plastic media such as the transmission medium for fiber optic connectors; According to the connector structure can be divided into: FC , SC, ST, LC, D4, DIN, MU, MT and so on. Among them, the ST connector is usually used for wiring equipment, such as fiber patch panels, fiber optic modules, etc .; and SC and MT connectors are usually used for network equipment. According to the fiber end shape is divided into FC, PC (including SPC or UPC) and APC; according to the number of optical fiber core there are single-core and multi-core (such as MT-RJ) points. Fiber optic connectors are widely used, a wide variety. In the practical application process, we usually distinguish according to the different structure of the optical fiber connector.