Dell PowerConnect 5548 User Guide - Page 38

• A/C Power Supply - Connector for AC power supply. See "Power Supplies" on page 42 for more information. • Fans - Fan outlets. See "Ventilation System" on page 38 for more information. Ventilation System The PowerConnect 5500/P switches have two built-in fans. Operation can be verified by observing the LED that indicates if one or more fans are faulty (see Table 5-1). The fan outlets are shown in Figure 5-4. LED Definitions The front panel contains light emitting diodes (LEDs) that indicate the status of links, power supplies, fans, and system diagnostics. These are described below. System LEDs The system LEDs of the PowerConnect 5500 devices provide information about the power supplies, fans, thermal conditions, and diagnostics. Figure 5-2 shows the location of the system LEDS on the device. Table 5-1 describes the meaning of the colors of the system LEDs. Table 3-1. System LED Indicators LED Power Supply (PWR) Status Color Green Static Green Flashing Off Green Static Green Flashing Red Static Red Flashing Description The switch is turned on. The Locator function is enabled. The switch is turned off. The switch is operating normally. The switch is booting. A critical system error has occurred. A non-critical system error has occurred. 38 Dell PowerConnect 55xx Systems User Guide