This article is a selection guide for Fiber patch cords and pigtails, which systematically introduces the definitions and differences between the two, different application environments and construction types, specifications and parameters of single core and multi-core. This article is a selection guide for Fiber patch cords and pigtails, which systematically introduces the definitions and differences between the two, different application environments and construction types, specifications and parameters of single core and multi-core. Leviton fiber optic pigtail kits are a good solution for mechanical or fusion splicing applications. Available in a range of multimode and single-mode fibers with SC, ST or LC connectors. Economy pigtails offer over a. Techlogiks Single Mode fiber pigtails are available in a variety of colours to complement any network, custom configurations and performances. Full choice of available connector types like LC/SC/ST/FC/E2000/MTRJ etc. Corning patch cords and pigtails are designed to IEC Grade B and exceed TIA 568 requirements.