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Chapter 3. Installing and replacing devices
33
•
The power supplies must always be installed in the proper place to maintain
proper expansion unit cooling.
•
Use only the supported power supplies for your specific expansion unit.
Removing a hot-swap power supply/fan unit
Complete the following steps to remove a hot-swap power supply:
1. Turn off the power supply.
2. Unplug the power supply cord from the electrical outlet.
3. Disconnect the power cord from the power supply.
4. Loosen the power supply thumbscrews
1
.
5. Grasp the handles
2
on each side of the power supply, and pull the unit out of
the expansion unit.
Installing a hot-swap power supply/fan unit
Complete the following steps to install a hot-swap power supply:
1. Ensure that the power supply you are installing is turned off.
2. Grasp the handles
2
and slide the power supply into the expansion unit.
3. Tighten the power supply thumbscrews
1
.
4. Connect the power cord to the power supply.
5. Plug the supply power cord into a properly grounded electrical outlet.
If you just installed a second (redundant) supply, the fault (amber) LED will light
because its power switch is turned off.
6. Turn on the power supply.
If you just installed a second (redundant) supply, after you turn on the power, the
fault (amber) LED will turn off and the ac and dc power (green) LEDs will turn
on.
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