2 – General DescriptionPower Supplies and Fans2-10 59096-04 AS2.5Power Supplies and FansThe model 5200/5600 switch has a single power supply that converts 100–240VAC to DC voltages for the various switch circuits. Four internal fans providecooling. The switch monitors internal air temperature, and therefore does notmonitor or report fan operational status. Air flow is front-to-back. To energize theswitch, plug the power cord into the switch AC receptacle and into a 100–240 VACpower source.The model 5202/5602 switch has two, hot pluggable power supplies that convertstandard 100–240 VAC to DC voltages for the various switch circuits. Each powersupply has an AC power receptacle and two status LEDs as shown in Figure 2-8: The Power Supply Status LED (green) illuminates to indicate that the powersupply is receiving AC voltage and producing the proper DC voltages. The Power Supply Fault LED (amber) illuminates to indicate that a powersupply fault exists and requires attention.Figure 2-8. Model 5202/5602 Switch Power SuppliesEach power supply is capable of providing all of the switch’s power needs. Duringnormal operation, each power supply provides half of the demand. If one powersupply goes offline, the second power supply steps up and provides thedifference.The power supplies are hot swappable and interchangeable. Hot pluggablemeans that you can remove and replace one power supply while the switch is inoperation without disrupting service. Refer to Section 6 for information aboutreplacing the power supplies.Connecting a power supply to an AC voltage source energizes the switch logiccircuitry. Internal fans provide cooling. Air flow is front-to-back.Status LED (Green)Fault LED (Amber)AC PowerReceptaclePower Supply 1 Power Supply 2
