What is the primary purpose of a fiber optic splice closure?

The primary purpose of a fiber optic splice closure is to provide a protective environment for spliced fiber joints. Splice closures serve as enclosures that safeguard the physical splices of fiber optic cables from environmental factors such as moisture, dust, and physical damage. These closures are crucial in maintaining the integrity and performance of the optical fibers, as they prevent external elements from causing signal loss or degradation.

Splice closures are typically designed with durable materials that can withstand various outdoor conditions, making them ideal for use in both aerial and underground installations. Their design also allows for easy access to the spliced fibers for maintenance or adjustments, ensuring that the optical fibers remain protected while also being manageable during installation and upgrades.

In contrast, while other options may relate to fiber optics in some way, they do not accurately capture the central role of splice closures. Amplifying signals pertains to equipment used in active fiber optic systems, terminating cables is a separate function that involves connecting fibers to equipment or other cables, and measuring fiber performance involves different types of testing equipment and methodologies that do not relate directly to splice closures. Therefore, the focus of splice closures is their protective capacity for the spliced joints, which is essential for reliable fiber optic performance.