Dell B-FCX manual Power supply unit operation

1 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 “Installing and replacing a power supply unit” on page 26. For information on LED status refer to Table 9.

FIGURE 16 PowerConnect B-FCX624s and PowerConnect B-FCX648s AC power supply receptacle

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1 AC power receptacle

FIGURE 17 PowerConnect B-FCX624 and PowerConnect B-FCX648 AC power supply receptacle

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1 AC power receptacle

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	PowerConnect B-FCX Switch Hardware Installation Guide
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