Used when converting a standard Free-Stand Enclosure to a Seismic Free-Stand Enclosure. Rack Panel allows rack-mount equipment to be installed in 36-inch wide enclosures. Seismic Rack Panel has EIA 310 specified square-holes (.375x.375) and larger openings to allow cables to pass through panel. Use with Seismic Panel Support Kits (included) and Seismic Mounting Plate Kits to obtain Seismic standards. Available with or without vertical cable management for copper and fiber networking cables. Kit includes one Seismic Rack Panel and two Seismic Panel Supports with hardware.