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Lenovo 9308-4PX Installation Manual
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DANGER• Plug power cords from devices in the rack cabinet into electrical outlets that are located near therack cabinet and are easily accessible.• Each rack cabinet might have more than one power cord. Be sure to disconnect all power cordsin the rack cabinet before servicing any device in the rack cabinet.• Install an emergency-power-off switch if more than one power device (power distribution unit oruninterruptible power supply) is installed in the same rack cabinet.• Connect all devices installed in a rack cabinet to power devices installed in the same rackcabinet. Do not plug a power cord from a device installed in one rack cabinet into a power deviceinstalled in a different rack cabinet.Statement 10CAUTION:Removing components from the upper positions in the Enterprise Rack cabinet improves rackstability during relocation. Follow these general guidelines whenever you relocate a populated rackcabinet within a room or building:• Reduce the weight of the rack cabinet by removing equipment starting at the top of the rackcabinet. When possible, restore the rack cabinet to the configuration of the rack cabinet as youreceived it. If this configuration is not known, you must do the following:– Remove all devices in the 32U position and above.– Ensure that the heaviest devices are installed in the bottom of the rack cabinet.– Ensure that there are no empty U-levels between devices installed in the rack cabinet below the32U level.• If the rack cabinet you are relocating is part of a suite of rack cabinets, detach the rack cabinetfrom the suite.• Inspect the route that you plan to take to eliminate potential hazards.• Verify that the route that you choose can support the weight of the loaded rack cabinet. Refer to thedocumentation that comes with your rack cabinet for the weight of a loaded rack cabinet.• Verify that all door openings are at least 760 x 2030 mm (30 x 80 in.)• Ensure that all devices, shelves, drawers, doors, and cables are secure.• Ensure that the four leveling pads are raised to their highest position.• Ensure that there is no stabilizer bracket installed on the rack cabinet.• Do not use a ramp inclined at more than ten degrees.• Once the rack cabinet is in the new location, do the following:– Lower the four leveling pads.– Install stabilizer brackets on the rack cabinet.– If you removed any devices from the rack cabinet, repopulate the rack cabinet from the lowestposition to the highest position.16 Lenovo 42U Enterprise Primary Rack and 42U Enterprise Expansion Rack Installation Guide |
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