How to Classify Fiber Optic Splice Closure


For outside plant splice closure, there are two major types: horizontal splice closure and vertical splice closure.Greentel is professional China Fiber Optic Splice Closure manufacturers and fiber closure suppliers.

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.


Splice closures provide room for splicing outdoor fiber cables together. Fiber optic splice trays are needed too. They provide the perfect protection for outside plant fiber cable joints.

Fiber optic 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 fiber optic telecommunication systems.