Fiber Distribution Boxes

An optical fiber distribution box is the core passive distribution device in an ODN network. It comes in two types: indoor wall-mounted and outdoor waterproof. The enclosure is made of SMC or cold-rolled steel with dust-proof, moisture-proof and anti-aging protection. Internally it integrates a splice tray, adapters, fiber slack storage and a splitter mounting position, and can perform cable fixing and grounding, fusion splice protection, pigtail storage and optical path distribution and routing, keeping fiber routing orderly and avoiding bend loss. Common capacities range from 12 to 144 fibers, suiting PON FTTH, residential corridor, base station and campus telecom closet applications. An optical splitter can be built in for multi-branch splitting. It simplifies optical link operation and maintenance and makes line expansion and fault repair convenient, serving as the key transfer node from the backbone cable to user terminals. It is widely used in broadband communications, security surveillance and industrial optical transmission scenarios.