NonStop NS2200 Series Planning Guide

Figure 19 Example of Bottom AC Power Feed With Three-Phase UPS
Each PDU is wired to distribute the load segments to its receptacles.
CAUTION: If you are installing NonStop NS2200 system enclosures in a rack, balance the current
load among the available load segments. Using only one of the available load segments, especially
for larger systems, can cause unbalanced loading and might violate applicable electrical codes.
Connecting the two power plugs from an enclosure to the same load segment causes failure of the
hardware if that load segment fails.
PDU Strapping Configurations
PDUs are available in four static strapping configurations that are factory-installed in a modular
cabinet. The specific PDU strapping configuration for a particular site depends on the type and
70 System Installation Specifications for NonStop NS2200 Systems