– Use OM3/OM4 multimode pigtails for in-building and data center splice fields. – Match the buffer diameter (0. – Always clean, cleave, and inspect before. Executive Summary: A fiber optic pigtail is one of the most commonly specified yet least understood components in structured cabling. Quick answer: A fiber optic pigtail is a. Fiber optic joints or terminations - where cables are terminated - are made two ways: 1) connectors that mate two fibers to create a temporary joint and/or connect the fiber to a piece of network gear (left) or 2) splices which create a permanent joint between the two fibers (right). Either. Optical fibers can be joined together, such that light is efficiently transferred from one fiber to another. The connector end plugs into your equipment, like a switch or patch panel. Available in a range of multimode and single-mode fibers with SC, ST or LC connectors.