Switch status for two installed power supply units (Continued)TABLE 15
State LED PSU1 PSU2 Switch Status Redundancy
DC OK Off Off
Power supplies
The device has two power receptacles on the rear panel. Each device ships with one power supply
installed. Brocade FCX 624S, FCX 648S, FCX 624S-F, FCX 624-E, FCX 624-I, FCX 648-E and FCX
648-I devices use a 210W PSU. Brocade FCX 624S-HPOE and Brocade FCX 648S-HPOE devices
use a 620W PSU.
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. Both 210W and 620W PSUs are hot-swappable.
For instructions on installing and replacing a power supply refer to Installing and replacing a power
supply unit.
FIGURE 24 Brocade FCX 624-E, FCX 624-I, FCX 648-E, and FCX 648-I AC power supply receptacle
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 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 FCX device to function normally.
HPOE and HPOE + power supplies
Brocade FCX 624S-HPOE and Brocade FCX 648S-HPOE devices use a 620W PSU. When one PSU
is powering the switch, the HPOE budget is 410W. If both PSUs are installed and powering the switch,
each PSU provides 410W to the switch, increasing the HPOE budget to 820W.
Power supplies
32 Brocade FCX Series Hardware Installation Guide
53-1002977-01
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