When vertically installed, the height of cable trays from the ground should not be lower than 1. If the above standards cannot be met, metal covers must be added for protection. Rail Height 100mm Fiber Optic Cable Tray by Lepin offers fireproof, durable, and versatile solutions for IDC, network, and telecom applications. Fiber raceways are commonly used in commercial, industrial, and data center. Fiber cable trays isolate jumpers from other cables, support multi-directional routing of jumpers, protect jumpers from physical damage while ensuring their bending radius, and provide storage for redundant jumpers. It is grounded on 40 years of experience in the manufacturing.