Dell PowerConnect B-FCX624 Hardware Installation Manual page 24

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Hardware features
Each power supply has one standard power receptacle for the AC power cable, and AC and DC
status LEDs for easy monitoring and troubleshooting.
A secondary power supply can be installed to provide backup power in case of a failure and for
load-balancing when both power suppies are operational.Load-balancing gives the power supplies
a longer life span. 210W PSU is hot-swappable.
For instructions on installing and replacing a power supply refer to
supply unit"
FIGURE 16
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FIGURE 17
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Power supply unit operation
When only one PSU is installed, both "AC OK" and "DC OK" LEDs on the installed PSU must be green
for the PowerConnect B-FCX device to function normally.
When two PSUs are installed, both "AC OK" and "DC OK" LEDs for one of the installed PSUs must be
green for the PowerConnect B-FCX device to function normally.
14
on page 26. For information on LED status refer to
PowerConnect B-FCX624s and PowerConnect B-FCX648s AC power supply receptacle
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AC power receptacle
PowerConnect B-FCX624 and PowerConnect B-FCX648 AC power supply receptacle
AC power receptacle
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PowerConnect B-FCX Switch Hardware Installation Guide
"Installing and replacing a power
Table 9.
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