Connecting Power To Systems, Pdus, And A Ups; Figure 5-1. Power Cord Connections For Systems, Pdus, And A Ups - NEC Express5800/320Ma Planning Manual

Connecting Power to Systems, PDUs, and a UPS

When you plan for PDUs, note the following:
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Only the top PDU is connected to the UPS.
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The bottom PDU is connected directly to an AC power main.
•
The UPS can be connected to the same AC power main that the bottom PDU is
connected to, or the UPS can be connected to another AC power main.
Figure 5-1 shows how to connect systems to PDUs and a UPS to the top PDU.

Figure 5-1. Power Cord Connections for Systems, PDUs, and a UPS

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1 A-side PDU
2 B-side PDU
3 B-side system power cables (black)
4 A-side system power cables (gray)
5 PDU power cords
6 UPS
7 UPS power cord
8 AC power outlets
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Connecting Power to Systems, PDUs, and a UPS
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UPS Planning 5-3