While there are several specific types of listings for power cables, specifically for tray applications, there is no equivalent tray rating for optical fiber cables. According to the 2014 National Electric Code® (NEC), any listed optical fiber cable is acceptable. The purpose of this AE Note is to outline the use of fiber optic cables in “tray rated” environments. For each product design, items for OM1, OM3, OM4, OM5, and OS2 (Singlemode) items have been. Check each product page for other buying options. Need help?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. When it comes to fiber-only cables that are to be installed in cable trays, there is a big gap in the standards and clarity on what these constructions look like and how they should be expected to perform under these conditions. What do we mean by the “installation process?” Assuming the design is completed, we're looking at the process of physically installing and completing the network, turning the design.