A tail fiber, also known as a fiber optic patch cord, consists of a connector on one end and a cut end of the fiber optic cable core on the other. 25 mm ferrule, half the size of the ST. Features. A fiber optic connector is a mechanical device that allows two fibers to be joined precisely, enabling light to pass with minimal insertion loss and reflection. Contact us if there is an acronym you would. “OFC connector type” is often used informally to mean optical fiber connector type and typically refers to LC, SC, ST, FC, MPO/MTP and others—choose based on device interface and optical budget. LC-LC connectors are a popular type of connector because of their small size and exceptional performance, which allows for high-density fiber. Among various optical fiber connectors, LC (Lucent Connector) fiber connectors have emerged as a dominant standard, particularly in data centers, enterprise LANs, and high-density cabling systems. LC connectors are widely used due to their compact form factor, robust performance, and versatility.