According to the 2014 National Electric Code® (NEC), any listed optical fiber cable is acceptable for a tray application. While there are several specific types of listings for power cables, specifically for tray. Mulder-Hardenberg offers a high-quality solution of fiber optic cable ducts, also known as yellow trunking (officially: YellowDuct® by Warren & Brown), which meets the needs of clients and installers with the highest demands. Yellow Ducts® is a unique system for routing and protecting fiber optic. Our Fiber Cable Tray System is a comprehensive raceway solution for data center, enterprise, central office, and mobile switching center applications. Designed to route and protect fiber optic and high-performance copper cabling to and from network cabinets, distribution frames, and other terminal. Cable tray is a raceway system designed to protect and route fiber optic patch cords, multi-fiber cable assemblies and intrafacility fiber cable to and from fiber splice enclosures, fiber distribution frames and fiber optic terminal devices AZE offers a variety of styles, materials and finishes. Eaton's Wire Mesh Cable Tray System lets you efficiently organize, route and protect copper network cable, A/V cable and other light cable bundles. Need Help with a Product You Own? Decide on the placement of racks and other equipment requiring power or data. In fiber optic communication systems.