HP Performance Optimized Datacenter 20c User Guide - North America

Power, electrical, and controls 30
power source and from common switchboards and transformers. A 2N redundancy installation is configured
by feeding the parallel power paths from independent power sources, switchboards, and transformers.
• Non-redundant power installation (1N load)—Both main input connections to the HP POD 20c are
powered from the same power feed.
• Redundant power installation (2N load)—Each main input connection to the HP POD 20c is powered
from parallel power paths from independent power feeds.
Drop boxes
The internal electrical busways provide a location to connect each of the drop boxes, which then power the
PDUs. Stagger the drop boxes on the electrical busways by connecting one drop box to busway #1 and
connecting the next drop box to busway #2. A staggered configuration enables load balancing with the rack
equipment and is necessary to ensure redundancy.