10. Attach the cables to the power supply handle with the hook-and-loop strap.
11. Route the power cord. Use best practices when routing power cords and other cables. A cable
management arm is available to help with routing. To obtain a cable management arm, contact a
Hewlett Packard Enterprise authorized reseller.
12. Make sure the -48V DC power source is off or the PDU breaker is in the off position, and then
connect the power cord to the -48V DC power source or PDU.
13. Turn on the -48V power source or switch the PDU breaker to the on position to supply -48V to the
power supply.
14. Be sure that the green power supply LED is on.
Power down the system
About this task
Before powering down the system for any upgrade or maintenance procedures, back up critical system
data and programs.
Before performing chassis maintenance, shut down all cartridges installed in the system.
Power down the system
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