Our selection includes three main fiber variants: 9/125um single mode, 62. 5/125 multimode, and 50um OM3, OM4, and OM5. These pigtails feature premium-grade jackets and are equipped with LC, SC, ST, and FC connectors, typically with a 0. FS offers single mode & multimode fiber pigtails with tight buffer design for easy fusion or mechanical splicing. Quality assurance by 100% end-face, IL & RL testing. The FC type pigtail has a simple structure and is easy to operate, making it user-friendly even for. Executive Summary: A fiber optic pigtail is one of the most commonly specified yet least understood components in structured cabling.