HP Networking Switch Power Supplies - Manual (Page 5)

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Figure 2 Installation flow of a power module
NOTE:
The device needs at least one power module to provide power supply, so the chassis
has a power module slot without a blank panel. For this slot, you can skip “Remove
the blank panel” in the figure above.
Before the installation, prepare an ESD-preventive wrist strap and a Phillips screwdriver.
Installing the power module
Follow these steps to install the power module:
1. Wear an ESD-preventive wrist strap, and make sure that the wrist strap makes good
skin contact and is properly grounded.
2. Use the Phillips screwdriver to unfasten the captive screws on the blank panel, and
remove the blank panel from the slot to be used (see callout 2 in the figure).