NonStop NS1200 Planning Guide

3 System Installation Specifications
This section provides specifications necessary for system installation planning.
NOTE: All specifications provided in this section assume that each enclosure in the modular
cabinet is fully populated. The maximum current for each AC service depends on the number
and type of enclosures installed in the modular cabinet. Power, weight, and heat loads are less
when enclosures are not fully populated; for example, a Fibre Channel disk module with fewer
disks.
Modular Cabinets
The modular cabinet is a EIA standard 19-inch, 36 or 42 U, rack for mounting modular
components. The modular cabinet comes equipped with front and rear doors and includes a rear
extension that makes it deeper than some industry-standard racks. The “Power Distribution
Units (PDUs)” (page 37) are mounted along the rear extension without occupying any U-space
in the cabinet and are oriented inward, facing the components within the rack.
NOTE: For instructions on grounding the modular cabinet's G2 rack using the HP Rack
Grounding Kit (AF074A), ask your service provider to refer to the instructions in the HP 10000
G2 Series Rack Options Installation Guide. This manual is available at: http://
bizsupport1.austin.hp.com/bc/docs/support/SupportManual/c01493702/c01493702.pdf.
Power Distribution Units (PDUs)
Two power distribution units (PDUs) are installed to provide redundant power outlets for the
components mounted in the modular cabinet. The PDUs are oriented inward, facing the
components within the rack. Each PDU is 60 inches long and has 39 AC receptacles, three circuit
breakers, and an AC power cord. The PDU is oriented with the AC power cord exiting the
modular cabinet at either the top or bottom rear corners of the cabinet, depending on the sites
power feed needs.
For information about specific PDU input and output characteristics for PDUs factory-installed
in modular cabinets, refer to“AC Input Power for Modular Cabinets” (page 40).
Each PDU in a modular cabinet has:
• 36 AC receptacles per PDU (12 per segment) - IEC 320 C13 12A receptacle type
• 3 AC receptacles per PDU (1 per segment) - IEC 320 C19 16A receptacle type
• 3 circuit-breakers
These PDU options are available to receive power from the site AC power source:
• 208 V ac, three-phase delta for North America and Japan
• 200 to 240 V ac, single phase for North America and Japan
• 380 to 415 V ac three-phase wye for International
• 200 to 240 V ac single phase for international
Each PDU distributes the site AC power as single phase 200 to 240 V ac to the 39 outlets for
connecting the power cords from the components mounted in the modular cabinet. These outlets
provide the 180-264 V ac required by the modular hardware.
The AC power feed cables for the PDUs are mounted to exit the modular cabinet at either the
top or bottom rear corners of the cabinet depending on what is ordered for the site power feed.
Figure 3-1 (page 38) shows the power feed cables on PDUs with AC feed at the bottom of the
cabinet and the AC power outlets along the PDU. These power outlets face in toward the cabinet.
Modular Cabinets 37