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2.8.2 Dual Power Feed


2.8.2 Dual Power Feed
Dual power feed is an option for receiving power feeds from two external power supplies. If a failure occurs in one external power supply, the system can still continue to operate with the other external power supply.

Figure 2-14 and Figure 2-15 show power supply systems with dual power feed.

For dual system connections, connect the pairs of power cords to the input power supplies on the separate systems.
One of the systems is PSU#0 and PSU#1, and the other is PSU#2 and PSU#3.
Figure 2-14  Power Supply Systems With Dual Power Feed
Figure 2-14  Power Supply Systems With Dual Power Feed
Figure 2-15  Power Supply System With Dual Power Feed (Expansion Rack)
Figure 2-15  Power Supply System With Dual Power Feed (Expansion Rack)
*1 In expansion rack 1

*2 In expansion rack 2
Note - The system consumes no power when there is no device connected to the PDU outlets. For the wiring of power cords within the expansion rack, see Figure 2-23.