Rack Mounting Safety ConsiderationsYou may either place the switch on the rack shelf or mount the switch directly into a 19" wide, EIA-310-E- compliant rack.• Rack loading — Overloading or uneven loading of racks may result in shelf or rack failure, which may damageequipment and cause possible personal injury. Stabilize racks in a permanent location before loading begins.Mount the components beginning at the bottom of the rack, then work to the top. Do not exceed your rack loadrating.• Power considerations — Connect only to the power source specified on the unit. When multiple electricalcomponents are installed in a rack, ensure that the total component power ratings do not exceed the circuitcapabilities. Overloaded power sources and extension cords present fire and shock hazards.• Elevated ambient temperature — If installed in a closed rack assembly, the operating temperature of the rackenvironment may be greater than the room ambient temperature. Use care not to exceed the 40°C maximumambient temperature of the switch.• Reduced air flow — Install the equipment in the rack so that the amount of airflow required for safe operation ofthe equipment is not compromised.• Reverse air flow — Necessary clearance is required to ensure cool air intake and to avoid hot air blow out fromI/O panel.• Reliable earthing — Maintain reliable earthing of rack-mounted equipment. Pay particular attention to thesupply connections other than the direct connections to the branch circuit; for example, use of power strips.• Do not mount the equipment with the Utility panel facing in the downward position.WARNING: These instructions are a condensed reference. Read the safety instructions in your Safety,Environmental, and Regulatory information booklet before you begin.NOTE: The illustrations in this document are not intended to represent a specific switch.Installing the S5000 Chassis into a 4-Post Rack or CabinetNOTE: Dell Networking recommends that one person hold the S5000 chassis in place while a second personattaches the brackets to the posts.Attach the bracket "ears" to the rack or cabinet posts, using two screws for each bracket. Ensure the screws aretightened firmly.13