H3C S12500 Installation Manual page 56

Connect one end of the blue DC power cord marked with – to the negative terminal (–) on the power
Step4
supply; connect the – end of the grounding cable to the terminal marked with PE on the rightmost of the
grounding strip.
Figure 37 Connect the DC power cord to the grounding strip
Connect the other end of the DC power cord to the power source:
Step5
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 negative terminal (–) that provides a power
•
supply to the switch.
Connect the other end of the grounding cable to a reliable grounding point.
•
NOTE:
You can connect a DC power cord to the power source in many ways.
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Figure 38 is for illustration only.