After "/", the process of optical fiber connector section is indicated, that is, grinding method.
"PC" is most widely used in the equipment of telecom operators, and its joint section is flat.
"SC" means that the model of pigtail connector is SC connector. The side optical interface of transmission equipment in the industry generally uses SC connector. The SC connector is engineering plastic, which has the advantages of high temperature resistance and is not easy to oxidize; The optical interface on the ODF side generally uses FC connector. FC is a metal connector, but the ODF does not have high temperature problems. At the same time, the metal connector can be plugged and unplugged more frequently than the plastic connector, and the ODF pigtail is maintained more frequently than the optical plate pigtail. Other common connector models are ST, DIN and FDDI.
"PC" refers to optical fiber connector section process, and PC is the most common. APC model is widely used in broadcasting and early CATV. The tail fiber head adopts an end face with an inclination angle (8 degrees). The inclination is usually invisible, which can improve the quality of the TV signal. The main reason is that the TV signal is modulated by analog light. When the coupling surface of the connector is vertical, the reflected light returns along the original path. Since the uneven refractive index distribution of the fiber will return to the coupling surface again, although the energy is very small at this time, the analog signal cannot completely eliminate the noise, so it is equivalent to adding a weak signal with time delay to the original clear signal. Represented on the screen is ghosting. The inclination of the tail fiber head band can prevent the reflected light from returning along the original path. This problem does not exist in general digital signals.
There is also a "UPC" process, whose attenuation is smaller than that of PC. Generally, the flange plate of equipment with special needs is FC/UPC. FC/UPC is used by foreign manufacturers for fiber hopping inside ODF racks to improve the indicators of ODF equipment.