Four-Post Rack Installation 7Important Safety InformationObserve the safety precautions in the following subsections when installing your system in the rack.CAUTION: You must strictly follow the procedures in this document to protect yourself as well as others whomay be involved. Your system may be very large and heavy and proper preparation and planning are important toprevent injury to yourself and to others. This precaution becomes increasingly important when systems areinstalled high up in the rack.CAUTION: Do not install rack kit components designed for another system. Use only the rack kit for your system.Using the rack kit for another system may result in damage to the system and personal injury to yourself and toothers.Rack Requirements for VersaRailsNOTICE: The VersaRails rack kit is intended to be installed by trained service technicians in a rack that meets thespecifications of American National Standards Institute (ANSI)/Electronic Industries Association (EIA) standardANSI/EIA-310-D-92, International Electrotechnical Commission (IEC) 297, and Deutsche Industrie Norm (DIN) 41494.One rack kit is required for each system that is installed in a rack.Rack Stabilizer FeetCAUTION: Before installing systems in a rack, install front and side stabilizers on stand-alone racks or the frontstabilizer on racks joined to other racks. Failure to install stabilizers accordingly before installing systems in arack could cause the rack to tip over, potentially resulting in bodily injury under certain circumstances.Therefore, always install the stabilizer(s) before installing components in the rack.The stabilizer feet help prevent the rack from tipping over. See the documentation provided with the rackcabinet for instructions on installing and anchoring the stabilizer feet.Recommended Tools and SuppliesYou may need the following items to install the system in a four-post rack cabinet:• #2 Phillips screwdriver• Masking tape or a felt-tip pen, for use in marking the mounting holes to be used