Charles Universal Broadband Enclosures (CUBE) are constructed to withstand the elements and provide superior protection for active electronics in all environments. . Outdoor communication cabinets play a vital role in safeguarding critical equipment in commercial environments. Designed to house a variety of communications equipment, CUBE customers take advantage of our engineering and factory integration for. . Each weatherproof outdoor enclosure is rated NEMA Type 3, 4, 5, or 6 and undergoes rigorous field testing to ensure reliability in demanding outdoor environments. Galvanized steel plinth – for secure. .