NetSource SP-NID01-ONU is an outdoor enclosure used at subscriber entry points for drop cable termination and transitions between service provider feeder fibers and customer distribution fibers in fiber-to-the-home (FTTH) and fiber-to-the-premise (FTTP) applications. It mounts to a wall or pole and is designed to house a Ubiquiti Optical Network Unit (ONU) as part of the network interface. The enclosure accommodates flat drop cables, ROC cables, and round cables from 3 mm to 16.2 mm outer diameter and provides internal storage for up to 50 feet of fiber. It includes designated cable entry locations and internal mounting features for securing the ONU within the enclosure.