When two identical power supplies are installed, the power supply configuration is redundant. Inredundant mode, power is supplied to the system equally from both power supplies to maximizeefficiency.When one power supply module is removed or has failed, the power supply configuration is non-redundant. Power is supplied to the system only by a single power supply module.CAUTION: Do not plug the enclosure into a standard power outlet. Your storage enclosure isshipped with two IEC C19 to C20 jumper cables. Connect the C19 plug to the enclosure’s powersupplies and the C20 plug to the power distribution unit (PDU) in the rack cabinet. For powerredundancy, split the power connections from each enclosure into separate PDUs and connectthe PDUs to external power receptacles on different circuits. The enclosure supports only 200 Vto 240 V input sources.Removing A Power Supply ModuleCAUTION: Many repairs may only be done by a certified service technician. You should onlyperform troubleshooting and simple repairs as authorized in your product documentation, or asdirected by the online or telephone service and support team. Damage due to servicing that isnot authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat came with the product.CAUTION: The system requires one power supply module for normal operation. Remove andreplace only one power supply at a time in a system that is powered on.1. Identify and locate the faulty power supply module.NOTE: The Service action required indicator lights amber when there is a fault in the powersupply module.2. Disconnect the power cable from the power source and the power supply module you intend toremove and remove the cables from the cable securing strap.3. Pull and rotate the two release levers away from the chassis until the power supply module is freefrom the slot.4. Hold the power supply module and slide the power supply out of the chassis.30