H3C Technologies H3C S5560 Series Switches - Manual (Page 15)

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3. Plug the other end of the AC power cord into the socket strip of the
power source, and turn on the circuit breaker of the power source.
4. Examine the LED on the power module. If the input status LED (AC
OK) is steady green, the power cord is successfully connected. If
the LED is off, examine the installation conditions, troubleshoot the
problems, and try again until the LED is normal.
Removing the power module
To avoid bodily injury or device damage, follow the steps in Figure 7 to
remove the power module.
Figure 7 Removing procedure
1. Turn off the circuit breaker of the power cord.
2. Put on the ESD-preventive wrist strap, making sure the strap makes
good skin contact and is well grounded.
3. Loosen the cable tie, and remove the power cord.
4. As shown in Figure 8 , press the latch towards the handle, and pull
the power module along the guide rails until it is part-way out.