User's Manual

Rack AC power distribution
The power distribution in an Enterprise Virtual Array rack is the same for all variants. The site AC
input voltage is routed to the dual PDU assembly mounted in the rack lower rear. Each PDU
distributes AC to a maximum of four PDMs mounted on the left and right vertical rails (see
Figure 20 (page 24)).
• PDMs A1 through A4 connect to receptacles A through D on PDU A. Power cords connect
these PDMs to the left power supplies on the disk enclosures (disk PS 1) and to the left power
supply on the controller enclosure (controller PS 1).
• PDMs B1 through B4 connect to receptacles A through D on PDU B. Power cords connect
these PDMs to the right power supplies on the disk enclosures (disk PS 2) and to the right
power supply on the controller enclosure (controller PS 2) .
NOTE: The locations of the PDUs and the PDMs are the same in all racks.
Figure 20 Rack AC power distribution
6. PDM B11. PDM A1
7. PDM B22. PDM A2
8. PDM B33. PDM A3
9. PDM B44. PDM A4
10. PDU A5. PDU B
24 EVA4400 hardware