The dual-core Uniboot patch cord integrates two optical fibers into a 2. 0mm optical cable, enhancing the cable management capacity of the pre-terminated system. Optical fiber connection between patch panels, connec-tion between patch panels and peripheral equipment. 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 Fiber Optic connectors. nications rooms, data centers and at the desk. Patch cords support network applications in main, horizontal and equipment distribution areas and are available in riser (OFNR), and low smoke zero halogen (LSZH) rated jacket mat nnector ins 5dB max. (Multimode -. Fiber patch cord, often called fiber patch cable, fiber jumper, or fiber patch lead, is a length of fiber cable that terminated with fiber optic connectors (LC, SC, MTRJ, ST and etc. One side ends with a dual ferrule guiding pin or a guiding socket connector.