NonStop NS14000 Series Planning Guide (H06.13+)

Enclosure AC Input
Enclosures (NonStop Blade Element, VIO enclosure, and so forth) require:
ValueSpecification
200/208/220/230/240 V AC RMSNominal input voltage
180-264 V ACVoltage range
1
50 or 60 HzNominal line frequency
47-53 Hz or 57-63 HzFrequency ranges
1Number of phases
1
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. Factory-installed enclosures
are connected to the PDUs for a balanced load among the load segments.
CAUTION: If you are installing NonStop NS14000 series system enclosures in a modular cabinet,
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.
Enclosure Power Loads
The total power and current load for each modular cabinet depends on the number and type of
enclosures installed in it. Therefore, the total load is the sum of the loads for all enclosures installed.
For examples of calculating the power and current load for various enclosure combinations, refer
to “Calculating Specifications for Enclosure Combinations” (page 65).
In normal operation, the AC power is split equally between the two PDUs in the modular cabinet.
However, if one of the two AC power feeds fails, the remaining AC power feed and PDU must
carry the power for all enclosures in that cabinet.
NOTE: If your system includes the optional rackmounted HP R5000 UPS or HP R5500 XR UPS,
the modular cabinet will have one PDU located on the rear left side and four extension bars on
the rear right side. To provide redundancy, components are plugged into the left-side PDU and the
extension bars. Each extension bar is plugged into the UPS.
Power and current specifications for each type of enclosure are:
Peak Inrush Current
(amps)
Maximum Power
Consumption (VA)
Typical Power
Consumption (VA)
AC Power Lines per
Enclosure
1
Enclosure Type
174804602NonStop Blade Element
chassis
NA150125NAProcessor assembly, 2P
NA300250NAProcessor assembly, 4P
672202202LSU enclosure
2
303262622VIO enclosure
3
141101102Fibre Channel Disk Module
(no disk)
NA1717NAFibre Channel disk drive
Enclosure AC Input 59