Inside each Fiber Optic Splice Closure, there are splice trays. These trays help you keep fiber splices neat and safe. Each splice has its own spot, so it does not get bumped. Splice trays are internal fiber management structures used to organize, protect, and separate optical fiber splices inside closures, terminal boxes, and distribution enclosures. Unlike fiber connectors, which can be plugged and unplugged, splicing creates a fixed connection that is typically more stable and has lower insertion. Once fibers are spliced, they need to be protected.
[pdf] Answer: Yes; cables are tied down in cable trays to keep the cables in the cable tray, to maintain spacing between cables, or to segregate or confine certain types of cables to specific locations. The last two items can also be accomplished with a solid fixed barrier. Cable trays are indispensable components in modern construction and industrial environments, providing a structured and efficient way to manage and support electrical cables.
[pdf] 
