NonStop NS2400 Series Planning Guide

Enclosure AC Input in G2 Racks
NOTE: For instructions on grounding the modular cabinet G2 rack by using the HP Rack Grounding
Kit (AF074A), ask your HP service provider to refer to the instructions in the HP 10000 G2 Series
Rack Options Installation Guide at:
http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/c01493702/c01493702.pdf
Enclosures (blade element, VIO enclosure, and so forth) require:
ValueSpecification
200/208/220/230/240 V AC RMSNominal input voltage
180-264 V ACVoltage range*
50 or 60 HzNominal line frequency
47-53 Hz or 57-63 HzFrequency ranges
1Number of phases
* Voltage range for the VIO enclosure is 100-240 V AC, and for the maintenance switch is 200-240 V AC.
Each PDU is wired to distribute the load segments to its receptacles. For more information, see
“Power Distribution for NonStop NS2400 Series Systems In Intelligent Racks” (page 52).
Factory-installed enclosures are connected to the PDUs for a balanced load among the load
segments.
CAUTION: If you are installing NonStop NS2400 series 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.
188 Power Configurations for NonStop NS2400 Series Systems in G2 Racks