IBM Storwize V5000 Gen 2 Series, Quick Installation Manual

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Figure 9. Enclosure support rails
Direct current power supply units
When the appropriate feature code is selected for the system model, two direct current (DC) power
supply units are installed in the control enclosure or expansion enclosure.
DANGER:
Hazardous voltage, current, or energy levels are present inside any component that has this label
attached. Do not open any cover or barrier that contains this label. (L001)
DANGER: When working on or around the system, observe the following precautions:
Electrical voltage and current from power, telephone, and communication cables are hazardous.
To avoid a shock hazard:
• If IBM supplied a power cord(s), connect power to this unit only with the IBM provided power
cord. Do not use the IBM provided power cord for any other product.
• Do not open or service any power supply assembly.
• Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration
of this product during an electrical storm.
• The product might be equipped with multiple power cords. To remove all hazardous voltages,
disconnect all power cords.
• Connect all power cords to a properly wired and grounded electrical outlet. Ensure that the
outlet supplies proper voltage and phase rotation according to the system rating plate.
• Connect any equipment that will be attached to this product to properly wired outlets.
• When possible, use one hand only to connect or disconnect signal cables.
• Never turn on any equipment when there is evidence of fire, water, or structural damage.
Chapter 1. Before you begin the installation 9