What Are the Two Types of Fiber Splice Closures?

There are two types of fiber splice closures – Dome Splice Closure and horizontal. The vertical type is used for underground applications, and is the most common type of Fiber Optic Joint Enclosure. It can come in many configurations and capacities. Its inlet and outlet ports vary, and it can be either flat or cylindrical. Some of the horizontal types are buried underground, and may have a variety of capacities，12-288 cores for your choosing in the FTTx project.

The horizontal type is the most common type, and is a versatile design that can be mounted aerially or buried underground. Horizontal Fiber Optic Cable Enclosures can be purchased in various capacities, from a standard 12 splice tray to a large 48 splice tray. Different splice trays have varying capacities, so you can choose a closure that fits the cables you’ll be splicing. A horizontal Fiber Enclosure can be made of a high-quality ABS+PC material for flame retardancy, electrical insulation, and weather-resistance.

Mechanical splices use index-matching gel or glue to hold the ends of fiber together. This type is used for restoration projects and can be used on multimode fibers, but you have to invest in a good cleaver to perform it safely and securely. If you’re not familiar with these methods, here’s a brief overview of the two types of splice closures.

Generally speaking, both horizontal and Fiber Dome Closure can be used in outdoor installations. Both types are durable, waterproof, and dust-proof, and can handle multiple types of fiber connections. Horizontal fiber splice closures are a popular choice for outdoor applications. On the other hand, the vertical type Fiber Joint Closure looks more like a dome and is designed for poled or buried installations.