DANGER
Electrical current from power, telephone, and communication cables is hazardous.
To avoid a shock hazard:
vDo not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm.
vConnect all power cords to a properly wired and grounded electrical outlet.
vConnect to properly wired outlets any equipment that will be attached to this product.
vWhen possible, use one hand only to connect or disconnect signal cables.
vNever turn on any equipment when there is evidence of fire, water, or structural damage.
vDisconnect the attached power cords, telecommunications systems, networks, and modems before you open the device covers, unless instructed otherwise in the installation and configuration procedures.
vConnect and disconnect cables as described in the following table when installing, moving, or opening covers on this product or attached devices.
To Connect: | To Disconnect: | ||
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1. | Turn everything OFF. | 1. | Turn everything OFF. |
2. | First, attach all cables to devices. | 2. | First, remove power cords from outlet. |
3. | Attach signal cables to connectors. | 3. | Remove signal cables from connectors. |
4. | Attach power cords to outlet. | 4. | Remove all cables from devices. |
5. | Turn device ON. |
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9.Turn off the power switch, and unplug the power cord from the failed power supply and fan unit.
10.Squeeze the latch and pull the lever open 90° (so that the lever is horizontal) to release the power supply and fan unit from the latch. The latch is a coral colored tab on the lever.
11.Slowly pull the lever away from the chassis to remove the power supply and fan unit, as shown in Figure 114 on page 168.
Note: The lever rotates upward or downward 90°, depending on whether the power supply and fan unit you are removing is in the right or left power supply and fan unit bay.
12.Slide the new unit into the empty slot. As you slide the power supply and fan unit into the empty slot, make sure the guide pins on the side of the power supply and fan unit fit into the notches. After the guide pins fit into the notches and power supply and fan unit fits snugly into the slot, push the lever downward or upward 90° to fully latch the power supply and fan unit into place, depending on whether you are inserting the power supply and fan unit into the right or left power supply and fan unit bay. Then gently push the front of the power supply and fan unit to ensure that it is fully seated.
Chapter 5. Replacing components 167
