Fiber optic adapters can be inserted into different interface types of fiber optic connectors at both ends, to achieve FC, SC, ST, LC, MTRJ, MPO, E2000 and other different interfaces between the conversion, widely used in fiber optic distribution frames (ODF), fiber optic communications equipment, equipment, and so on, with superior performance, stability and reliability. Some of the market will be called fiber optic adapter fiber optic connector, in fact, this is two different products.
Based on the different fiber optic connectors, fiber optic adapters can provide the corresponding fiber optic connector adapter components.
Applicable fiber optic connector models are FC, SC, ST, LC, MTRJ, E2000 and so on.
Applicable fiber optic connector end faces include PC, UPC, APC, etc.
Fiber Optic Adapter
SC stands for Standard Connector.
ST stands for Straight Tip.
FC stands for Fiber Connector.
The part in front of the "/" indicates the applicable fiber connector type. applicable fiber optic connector model.
"SC" connector is a standard square connector, which is made of engineering plastic and has the advantages of high temperature resistance and not easy to oxidize. SC connectors are generally used for optical interfaces on the side of transmission equipment.
"LC" connectors are similar in shape to SC connectors, but smaller than SC connectors.
"FC" connectors are metal connectors, generally used on the ODF side, and metal connectors can be plugged and unplugged more often than plastic.
Connector varieties of more models, in addition to the three described above, there are MTRJ, ST, MU, etc., the specific appearance of the figure below.
/" after the fiber optic connector cross-section process, that is, the grinding method.
"PC" is most widely used in telecom carriers' equipment, and its connector cross section is flat.
"UPC" attenuation is smaller than "PC", generally used in equipment with special needs, some foreign manufacturers ODF frame internal jumpers used is FC/UPC, mainly to improve the ODF device's own indicators.
"APC" means angled 8 degrees polished, in the broadcasting and early CATV applications are more "APC" model, the pigtail head with a tilted end, can improve the quality of the TV signal, the main reason is that the TV signal is an analog modulation of light, when the coupling surface of the connector is vertical, reflected light returns along the original path. Due to the uneven distribution of the refractive index of the fiber will return to the coupling surface, although the energy is very small, but because the analog signal is unable to completely eliminate the noise, so it is equivalent to the original clear signal superimposed on a weak signal with a time delay, the performance of the screen is a double image. Pigtail head with tilt can make the reflected light does not return along the original path. General digital signals generally do not have this problem.
Fiber optic connector is a removable (movable) connection between the optical fiber and the optical fiber, it is the two end faces of the optical fiber precision butt joints, in order to transmit optical fiber output of optical energy can maximize the coupling to the receiving optical fiber to go, and to make it due to its intervention in the optical link and the impact on the system to be reduced to a minimum, which is the basic requirements of the fiber optic connector. To a certain extent, the fiber optic connector also affects the reliability and performance of the optical transmission system.