5-12 Installing Rack ComponentsInstalling a Power Distribution UnitIf you are not using an Uninterruptible Power Source (UPS), AC power isdistributed to system components through a Power Distribution Unit (PDU). SeeFigure 5-9.The PDU comes equipped with a 15-foot power cord and can be installed eitherin the bottom of the rack, or when rack space is at a premium, directly behindyour keyboard tray. See your configuration work sheet to determine the locationchosen for your PDU.Note: When you install a PDU behind a keyboard tray,the remaining workspace will be restricted. Therefore, it isrecommended that keyboard, mouse, monitor, andconnections to any port concentrator are completed beforeyou install a PDU behind a keyboard tray.ABCDEA. Cage-nutB. Rack Vertical Rail, Left RearC. PDU Mounting Screw and WasherD. Green Ground StrapE. Rack Vertical Rail, Right RearFigure 5-9. Installing the Power Distribution Unit
