Here, FC stands for Ferrule Connector, which uses a steel metal sleeve as the ferrule. PC refers to Physical Contact, meaning tight physical contact between fiber end faces. Based on different return loss performance, physically contacting connectors are classified into PC, UPC. Understanding fiber connector types—SC/APC, SC/PC, LC/UPC, LC/APC, ST/PC, FC/PC, and FC/APC—is essential for selecting the right interface for your application. What are the differences between APC, UPC, PC? How to distinguish them? How to choose between them? This post will tell. What are SC/APC, LC/UPC? You may have heard. The FC connector is a fiber-optic connector with a threaded body, which was designed for use in high-vibration environments. It is commonly used with both single-mode optical fiber and polarization-maintaining optical fiber. They can also be provided with fiber connectors of type AVIM (compatible with LSA), E2000 or with different types of fiber connector at each end. An overview of detailed features is provided in the table.
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