Overhead Zone Cabling 4U 19 in (482 mm)W Patch Frame This Overhead Zone Cabling Patch Frame is a 4U 2-post 482mm (19in) width frame that attaches directly to overhead cable management systems above racks or enclosures for patching or installation of small switches. Zone Cabling provides flexibility in network and datacenter design by decoupling the physical network cabling from the enclosure, allowing easy movement of racks and upgrades to the network while saving time and money. Frame is provided standard with brackets for mesh wire cable tray and can also be mounted to cable ladder systems using cable ladder elevation bracket (AR8186). The frame supports up to 15 kg (33 lb) of rack mounted equipment or cabling.