The Passive Ceiling Zone Enclosure is a flexible, economic solution to support zone cabling in a variety of enterprise workspaces, enabling shorter easy-to-manage connections directly to building devices. Designed to meet UL 2043 plenum requirements and install flush within a 2 X 2 ft. drop ceiling tile space, this lightweight EIA/ECA-310-E compliant ceiling enclosure is low profile while offering a 4U adjustable rack system with a recommended maximum 96-port count for copper cabling.