24 C HAPTER 2: INSTALLING THE SWITCHThe Power-upSequenceThe following sections describe how to get your Switch 610 powered-upand ready for operation.Connecting aRedundant PowerSystemYou can connect a SuperStack II Advanced Redundant Power System(part number 3C16071) to the Switch. This unit, which is also known asan RPS, is designed to maintain the power to your Switch if a powersupply failure occurs.CAUTION: The Switch can only use a SuperStack II AdvancedRedundant Power System output.Powering-up theSwitch 610Use the following sequence of steps to power-up the Switch.CAUTION: The Switch has no ON/OFF switch; the only method ofconnecting or disconnecting main power is by connecting ordisconnecting the power cord.1 Plug the power cord into the power socket at the rear of the Switch.2 Plug the other end of the power cord into your power outletThe Switch powers-up and runs through its Power On Self Test (POST),which takes approximately 12 seconds.Checking for CorrectOperationDuring the Power On Self Test, all ports on the Switch are disabled andthe Port Status LEDs light in a rapid cycle.When the POST has completed, check the Power/Self Test LED to checkthat your Switch is operating correctly. Table 4 shows possible colors forthe LED.If there is evidence of a problem, see “Solving Problems Indicated byLEDs” on page 25.Table 4 LED colorsColor StateGreen The Switch is powered-up and operating normally.Yellow The Switch has failed its Power On Self Test. Thisoccurs if any of the ports fail during power-up.Off The Switch is not receiving power.