What else is a fiber optic junction box called

A fiber optic junction box is also commonly called a fiber closure, splice closure, distribution box, termination box, or fiber optic enclosure.

Fiber optic junction boxes serve as protective enclosures for splicing, distributing, and managing optical fibers. Depending on the application and environment, they may be referred to by different names: Fiber Closure / Splice Closure: These terms are often used for outdoor or underground enclosures designed to protect fiber splices from environmental hazards while providing mechanical strength and cable management. They are typically buried, pole-mounted, or installed in manholes and are essential for outside plant (OSP) networks . Fiber Optic Distribution Box / Termination Box: These names are commonly used for indoor or sheltered outdoor enclosures that focus on fiber termination, patching, and distribution rather than raw splicing. They are often wall-mounted, rack-mounted, or floor-standing and are used in FTTH networks, data centers, or residential installations . Fiber Splicing Box: A smaller, specialized enclosure primarily for housing and protecting fiber splices in compact form factors, often used in last-mile FTTH deployments or building entrance facilities . Fibre Optic Enclosure / Fiber Termination Enclosure (FDE): These terms emphasize the enclosure's role in organizing, terminating, and distributing fibers, particularly in controlled environments like data centers . In summary, the terminology varies based on location, function, and scale: outdoor splicing applications often use "fiber closure" or "splice closure," while indoor distribution and termination applications use "distribution box," "termination box," or "fiber optic enclosure" .