The connector types on the terminated end of the pigtail are typically the same as those used for fiber optic patch cords, such as SC, LC, ST, or FC types. The differences between LC, ST, and SC connectors are crucial for various applications in networking. Understanding these differences is essential for choosing. Executive Summary: A fiber optic pigtail is one of the most commonly specified yet least understood components in structured cabling. It is usually suitable for field termination using a mechanical or fusion splicer. Compared with quick termination or epoxy and polish connections placed on the field. A pigtail fiber indicates a short length of optical fiber cable that has a pigtail connector (for example, SC, FC, ST, LC, etc.