--- title: "Rack Precautions" slug: "rack-precautions" tags: ["Endpoint Security (HX)", "Hardware"] updated: 2026-10-19T18:36:54Z published: 2026-10-19T18:36:54Z canonical: "docs.trellix.com/rack-precautions" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.trellix.com/llms.txt > Use this file to discover all available pages before exploring further. # Rack Precautions Trellix recommends that you mount the appliance in a standard 19-inch rack. The vertical hole spacing on the rack rails must meet standard ANSI/EIA-310-C requirements. Consider the following before installing your appliance in the rack: - Ensure the leveling jacks on the bottom of the rack are fully extended to the floor with the full weight of the rack resting on them. - In a single-rack installation, stabilizers should be attached to the rack. - In a multiple-rack installation, the racks should be coupled together to increase their stability. - Always make sure the rack is stable before extending a component from the rack. - Only extend one component from the rack at a time—extending two or more simultaneously may cause the rack to become unstable. - Ensure your rack meets the safety requirements of UL 60950-1. ### Warning STABILITY HAZARD: The rack may tip over causing serious personal injury. To prevent injury: - Before extending the rack to the installation position, read the installation instructions. - Do not put any load on the slide-rail mounted equipment when the rails are extended in the installation position. - Do not leave the slide-rail mounted equipment with the rails extended in the installation position. :