Hardware Description 33Figure 2-8. System LEDsThe following table describes the system LED indications.Hardware ComponentsPower SuppliesThe device has an internal power supply unit (AC unit) and a connector to connect the device toan external power supply unit (DC unit). The external unit provides redundancy and is called anRPS unit. To power up the device, only one power supply is required. Operation with both powersupply units is regulated through load sharing.Load sharing is where the device power requirements are devided between the two power supplies.If one power supply has an outage, the second power supply automatically continues providingpower to the whole device.Table 2-3. System LED IndicationsLED Color DescriptionDiagnostics (DIAG) Green Flashing The system is currently running a diagnostic test.Green Static The system passed the diagnostic test.Red Static The system failed the diagnostic test.Fan (FAN) Green Static The device fans are operating normally.Red Static One or more fans are not operating.Redundant Power Supply (RPS) Green Static The redundant power supply is currently operating.Red Static The redundant power supply is not operating.OFF The redundant power supply is not currentlyoperating.Main Power Supply (PWR) Green Static The main power supply is currently operatingnormally.OFF The main power supply is not currently operating.Red The main power supply has failed
