Fiber optic fusion and mechanical splices are placed in mechanical closures that are referred to as "splice enclosures", "splicing trays" or "splicing organizers". Fiber optic splice trays are designed to provide a location to store and to protect the Fiber Patch Panel and the splices.
Fiber optic splice trays are located at intermediate points along a route where cables are required to be joined or at the termination and patch panel points at the end of fiber cable runs.Splice trays normally hold up to 12 splices, and several trays are used together to splice a large fiber cable. Each tray provides space for mounting fiber splice protectors and excess fiber.
Fiber buffer tubes enter the splice tray at one end only. At this end, the buffer tubes stop and are secured to the tray where the individual fibers are exposed. If some fibers need to be routed to a different tray, proper buffer tube splitters should be used. Unprotected fibers should not be exposed outside the splice tray. Fiber splice trays can be optical wavelength sensitive. A splice tray designed for only 810nm wavelengths may cause optical loss if 1550nm wavelengths are used. So check your splice tray manufacturer's specification before use it.
Fiber optic splice closure is the equipment used to offer room for fusion splicing optical fibers. It also provides protection for fused fiber joint point and fiber cables. There are mainly two types of closures: vertical type and horizontal type. A large variety of fiber splice closures are designed for different applications, such as aerial, duct fiber cables and direct burial. Generally speaking, they are usually used in outdoor environment, even underwater.
Splice closures provide room for splicing outdoor fiber cables together. Fiber splice trays are needed too. They provide the perfect protection for outside plant fiber cable joints.
Fiber splice closures accept both ribbon and round fiber cables. Each type (ribbon or round cable) fits respective requirement of different fiber splicing counts. They are widely used in optic telecommunication systems.