Fiber Optic Splice Closure Protect the Spliced Fiber


This Installation for the Fiber Optic Splice Closure (Hereafter abbreviated as FOSC), as the Introduction. The scope of application is: aerial and wall-mounting. The ambient temperature ranges from -40℃ to 65℃.

Fiber optic splice closure is usually used with outdoor fiber optic cables, provides space for the outdoor fiber optic cables to be spliced together. The fiber optic splice closures and the fiber trays inside will protect the spliced fiber and the joint parts of the outdoor fiber cables. Generally the fiber optic splice closures are dome fiber closure, and inline closure is used more often.

There are two main types of closures, fiber optic and fiber optic terminal. A closure is hardware used to restore integrity of fiber cables entering the enclosure. The terminal is a hardened external connector that allows the addition of one or more fiber cables to the enclosure. These two categories can be configured as butt closures and in-line closures. The butt closure allows cables to enter from one end, while the in-line allows entry from both ends. Both the butt closures and in-line closures can be one of the following types:

1 Horizontal type

Horizontal type splice closures look like flat or cylindrical case. They provide space and protection for optical 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 inline closure can accommodate hundreds of fiber connections. They are designed to be waterproof and dust proof. They can be used in temperature ranging from -40°C to 85°C and can accommodate up to 106kpa pressure. The cases are usually made of high tensile construction plastic, are widely used in CATV, telecommunications and fiber optic networks.

2 Vertical Type

Vertical type of fiber optic splice closures looks like a dome, thus they are also called dome fiber optic splice closures. They meet the same specification as the horizontal types. They are designed for buried applications.

Dome fiber closure are made of excellent engineering plastics, they are with 1 inlet/outlet ports, 2 inlet/outlet ports, 3 inlet/outlet ports types, fitting different fiber optic core numbers. The vertical fiber optic splice closure is used in CATV, telecommunications and fiber optic networks. Fiber splice closures accept both ribbon fiber optic cable 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. provides suitable fiber optic splice closure for you.