All closures must be capable of protecting the splices and fibers from water damage. For protection against the outside plant environment and damage, splices require placement in a protective enclosure, usually called a splice closure. Splices are generally placed in a splice tray which is then placed inside a splice closure or integrated into a fiber pedestal for OSP. Key takeaway: Fiber optic splice closures are indispensable for protecting and maintaining the integrity of your network's fiber connections, promoting reliability and performance. This guide explains their functions, types, and selection criteria, while showing how FiberMania's OEM customization helps achieve higher reliability and efficiency in modern.