HP procurve switch zl, Installation Manual

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6
Installing the Power Supply
3.
Tighten the four retaining screws
that hold the power supply in place
until the screws are secure, as shown in the next illustration. The screws
can be tightened with either a flat-bladed or Torx T-10 screwdriver. Be
careful not to overtighten the screws.
Figure 4. Fully installed power supply
4. Connect the power cord supplied with the power supply to the power
connector, and then into a properly grounded electrical outlet. To provide
true redundancy, the second power supply should be connected to a
different AC power source from the other supply. Then, if one AC power
source fails, the switch will continue to run.
Tighten the four screws