40 Dell PowerConnect 55xx Systems User GuideFILE LOCATION: C:\Users\gina\Desktop\Checkout_new\Maintenance Projects\DellContax\sources\CxUGHardware.fmD E L L C O N F I D E N T I A L – P R E L I M I N A R Y 1 0 / 3 0 / 1 3 - F O R P R O O F O N LY• A/C Power Supply — Connector for AC power supply. See "PowerSupplies" on page 44 for more information.• Fans — Fan outlets. See "Ventilation System" on page 40 for moreinformation.Ventilation SystemThe PowerConnect 5500/P switches have two built-in fans. Operation can beverified by observing the LED that indicates if one or more fans are faulty(see Table 3-1).The fan outlets are shown in Figure 3-4.LED DefinitionsThe front panel contains light emitting diodes (LEDs) that indicate thestatus of links, power supplies, fans, and system diagnostics.These are described below.System LEDsThe system LEDs of the PowerConnect 5500 devices provide informationabout the power supplies, fans, thermal conditions, and diagnostics.Figure 3-2 shows the location of the system LEDS on the device.Table 3-1 describes the meaning of the colors of the system LEDs.Table 3-1. System LED IndicatorsLED Color DescriptionPower Supply(PWR)Green Static The switch is turned on.Green Flashing The Locator function is enabled.Off The switch is turned off.Status Green Static The switch is operating normally.Green Flashing The switch is booting.Red Static A critical system error has occurred.Red Flashing A non-critical system error has occurred.
