SR42UBZ has been designed and tested to meet Telcordia GR-63-CORE Network Equipment & Building Systems (NEBS) requirements for Zone 4 Seismic Earthquake Environments. It is designed for secure, high density server and networking applications in IT environments that are earthquake prone or subject. NR6282-P - Go Rack, 42U, Black, With Perforated door, Roof, Castors, 4 Brackets, Side Panel, and Bottom, 2100H x 600W x 800D mm | Schneider Electric UAE Skip To Main Content Gulf countries Gulf countries Our Brands Online Store My Documents Products Low Voltage Products and Systems Residential and. As a server cabinet, suggesting distance between the front rail and rear rail is 850mm. As a network cabinet, suggesting distance between the front rail and rear rail is 700mm. ports, perforated doors to promote efficient airflow, adjustable mounting rails and more. Superior Organization: Keep your cables and devices neatly arranged for.