Fiber optic splice closure is the equipment used to offer room to fuse splice optical fiber and also to provide protections for the fused fiber joint point and the fiber cables.For outside plant splice closure, there are two major types: horizontal splice closure and vertical splice closure.
1) Horizontal type Horizontal types closure look like a flat or cylindrical case, they provide space and protection for fiber optic cable splicing and joint. They can be mounted aerial, buried, or for underground applications. Horizontal types are used more often than vertical type (dome type) closures. Most horizontal fiber optic splice closure can fit hundreds of fiber connection. They are designed to be waterproof and dust proof. They can be used in temperature ranging from -40°C to 85°C, can accommodate 70 to 106 kpa pressure and the case are usually made of high tensile construction plastic.
2) Vertical Type Vertical type of fiber optic splice closure looks like a dome, thus they are also called dome type. They meed the same specification as the horizontal types. They are designed for buried applications.