Rack mount fiber enclosure in black. OCC is committed to providing the best fiber cabling system in the industry. Our newly redesigned fiber termination enclosures introduce new features to a well-established product line, making them easier to work with and more aesthetically pleasing while maintaining the ruggedness expected from optical cable corporation. These new fiber optic enclosures allow for easier terminations, greater capacity and uncomplicated cable management. Fabricated from 16-gauge steel to withstand years of adds, moves and changes, the new RTC and RTS enclosures incorporate features designed to reduce installation time and cost.