HP StorageWorks 2405 Disk System - Manual (Page 21)

Product Description 21
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Power Supply/Fan Module
Redundant, hot-pluggable 340-watt power supplies convert wide-ranging AC
voltage from an external main to stable DC output and deliver it to the midplane.
Each power supply has an internal fan, an AC receptacle (A in Figure 5), two
ejector handles (D) with thumbscrews (C), and 2 LEDs (B). Internal control
prevents the rear DC output connector from becoming energized when the power
supply is removed from the disk system.
Figure 5. Power Supply/Fan Module