Connecting the disk shelf to a power source

The disk shelf is shipped with two power supplies, labeled PSU1 and PSU2, respectively.

The disk shelf is shipped with an AC power cord for each power supply. You must have separate circuit breakers for each power supply.

You must fabricate the power cords for the DC power connections labeled plus (+), minus (-), ground (G), and no connect (N/C).

To connect a disk shelf to a power source, complete the following steps.

Step	Action
1	Make sure that the storage appliance and the disk shelves are turned off.
2	If you are connecting to...	Then...
	AC power	Plug the power cord for PSU1 into the power receptacle on the left connector (rear view). Plug the power cord for PSU2 into the power receptacle on the right connector (rear view). Fasten the power cords with the clamps. Plug the other end of each power cord into a grounded AC power source.
		Turn on the power switch. Note The default spin up time for all disks in the disk shelf is 60 seconds. Reduce this spin up time to 20 seconds by turning on the switches of both power supplies within 5 seconds of each other.
	DC power	Remove the cover over the DC input connector. Fabricate a three-way cable: Use wire-strippers to strip an inch of the protective sheathing from the copper wire. Identify the positive, negative, and ground wires. Crimp and solder a connector to the end of the positive, negative, and ground wires. Connect the ground, positive, and negative wires to the power supply. Place the terminal cover over the DC input connector to avoid shorting the power supply cables. Plug the other end of each power cord into a power source and turn it on.