H3C Technologies H3C S12500 Series Switches - Manual (Page 48)

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3. Secure the ring terminal of the black power cord to the RTN (+) terminal on the terminal block with
screws using a Phillips screwdriver.
Figure 39 Connecting the DC power cords to terminals on the power supply
4. Connect the other end of the DC power cord to the power source:
{
Connect the other end of the black DC power cord to the RTN (+) terminal that provides power
to the switch.
{
Connect the other end of the blue DC power cord to the –48V terminal that provides a power
supply to the switch.
5. Install the protection cover:
a. Remove the screws on the DC power frame.
b. Install the protection cover on the wiring terminals.
c. Fasten the screws using a Phillips screwdriver.
Figure 40 Installing the protection cover
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