Outdoor GR487 Enclosure: 28"W x 20"D x 23"H; 12 rack units; 23" Vertical Rails, or 14 rack units; 19" Horizontal Rails; FlexSure WS applications include backhaul solutions for FTTx; DSL; Broadband Loop Carrier as well as LTE; Node B and WiFi/WiMax. As requirements grow, the FlexSure 2420 Series modular design allows customers to adapt the cabinet configuration as needed to add more electronics, thermal management, and battery backup.