A fiber distribution box (FDB) is a passive enclosure that provides secure splicing, termination, and distribution of optical fibers. In FTTH, FTTB, and other fiber access networks, terms such as Fiber Optic Termination Box, Fiber Distribution Box (FDB), and ODF (Optical Distribution Frame) are frequently mentioned. As an important node in fiber optic access networks (such as FTTH) and backbone networks, it ensures efficient transmission. In modern FTTH and FTTx networks, several types of fiber management hardware ensure reliable optical connectivity from the central office to the end user. To ensure consistent performance and longevity, it is essential to adhere to strict technical specifications.