An Outdoor Fiber Distribution Box (FDB) is a hardened, weatherproof enclosure (typically IP65-IP68 rated) designed to connect feeder cables to distribution or drop cables in FTTH networks. Mounted on poles or walls, it acts as a termination point for splicing, splitting, and managing fiber connections in harsh outdoor environments. They are constructed from UV-resistant, corrosion-proof, and durable materials (e.g., PC+ABS) to withstand extreme temperatures and environmental elements. They accommodate various fiber counts, typically ranging from 4 to 96 cores, often featuring space for splitters to serve multiple subscribers. They contain splice trays, cable management guides, and lockable doors to secure connections. They support both fusion splicing and mechanical connection, allowing for easy, fast installation of drop cables to homes. They are commonly used in distributing fiber to residential units, installing on poles or exterior walls, data communication in harsh environments.
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