Leviton Fiber Optic Patch Cords are designed to interconnect or cross connect fiber networks within structured cabling systems. Leviton can produce any standard or custom fiber patch cord to meet your needs, and can offer quick-turn services for fast delivery. Leviton offers two series of patch cords Premium Series and Economy Series. Premium Series Patch Cords offer higher performance, optional custom labels, and optional 100% interferometer testing. Economy Series Patch Cords are a price-competitive stocked or custom ordered solution that meets or exceeds all industry standards.