hen connecting the power cord, make sure the circuit breaker is completely turned off for both the
positive and negative lines.
To connect the DC power cord:
1. Take off the protection cover.
2. Use a No. 2 Phillips screwdriver to loosen the screws on the wiring terminals.
3. Connect the end of the blue DC power cord marked with – to the negative terminal (–) on the
power supply, and fasten the screw.
4. Connect the end of the black DC power cord marked with + to the positive terminal (+) on the
power supply, and fasten the screw.
5. Put the protection cover on the wiring terminals.
6. Connect the other ends of the DC power cords to the wiring terminals that provide a power supply
to the switch.
Figure 27 Connecting a DC power cord
(1) Protection cover
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