AC Power Feeds in the Rack
Systems can be ordered with the AC power cords for the PDU installed either:
• Top: Power and I/O cables are routed from above the rack.
• Bottom: Power and I/O cables are routed from below the rack.
ExamplesAC Power Feeds...
Without UPS
• Example AC feed at bottom of rack without
UPS (page 39)
• Example AC feed at top of rack without UPS (page 40)
With Single-Phase UPS
• Example AC feed at top of rack with single-phase
UPS (page 41)
• Example AC feed at the bottom of rack with
single-phase UPS (page 42)
With Three-Phase UPS
• Example AC feed at top of rack with three-phase
UPS (page 43)
• Example AC feed at the bottom of rack with
three-phase UPS (page 44)
NOTE: The example power feed illustrations on the following pages show the connections to
two PDUs and one UPS. If you have a power configuration with four PDUs and two UPS's, you
will need to make additional connections.
38 NS7 System Installation Specifications
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