5. Press the orange latch on the power supply cam handle until it releases, and then open the cam handle to
fully release the power supply from the mid plane.
The following illustration is for a power supply used in a DS224C or DS212C disk shelf; however, the latch
operates the same way for power supplies used in DS460C disk shelves.
6. Use the cam handle to slide the power supply out of the disk shelf.
If you have a DS224C or DS212C disk shelf, as you remove the power supply, a flap swings into place to
block the empty bay, helping to maintain air flow and cooling.
When handling a power supply, always use two hands to support its weight.
7. Make sure that the on/off switch of the new power supply is in the Off position.
8. Using two hands, with the cam handle of the new power supply in the open position, support and align the
edges of the new power supply with the opening in the disk shelf, and then firmly push the new power
supply until it meets the mid plane.
Do not use excessive force when sliding the power supply into the disk shelf; you might
damage the connectors.
9. Close the cam handle so that the latch clicks into the locked position and the power supply is fully seated.
10. Reconnect the power supply cable and turn on the new power supply:
a. Reconnect the power cord to the power source.
b. Reconnect the power cord to the power supply and secure the power cord with the power cord retainer.
c. Turn on the power switch.
The power supply’s power (green) LED and attention (amber) LED illuminate, and then within 40
seconds, the attention (amber) LED turns off.
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