User manual

Removing and Installing Power Supplies
Book Title
4-16
Installing the DC Power Supply
Take the following steps to install a DC power supply:
Caution To avoid problems or damage to the switch, do not mix DC-input power supplies
with AC-input power supplies in individual switches.
Step 1 Grasp the DC power supply handle with one hand and place your other hand
underneath to support the bottom of the supply, as shown in Figure 4-11.
Step 2 Place the DC power supply into the power supply bay and push the DC power
supply into the bay until the power supply faceplate is flush with the cover.
Step 3 Tighten each of the two captive installation screws by turning them clockwise
(see Figure 4-9).
Caution Alternate tightening the captive installation screws every one or two turns to
avoid skewing the power supply.
Caution Keep hands and fingers out of the power supply bays. Voltage is present on the
switch backplane when the system is operating.
After the installation is complete, continue with the following section, “Connecting DC
Power.”