Cooling Requirements; Power Requirements - HP StorageWorks 2/64 - Core Switch Installation Manual

• All equipment installed in the rack should have a reliable branch circuit ground
connection, and should not rely on a connection to a branch circuit, such as a power
strip.
• The rack should be balanced, and the installed equipment should be within the rack's
weight limits. Ensure that the rack is mechanically secured to insure stability in the event
of an earthquake.

Cooling requirements

Install the switch so that air intake and exhaust for all components in the rack is flowing in the
same direction.
NOTE: To ensure adequate cooling, install the chassis with the port side facing the aisle into
which exhaust air is released (usually called the service aisle). This prevents the fans from
pulling in heated exhaust air.

Power requirements

Two AC power cords connect to the switch. The AC power source must meet these
requirements:
NOTE: Installing each power cord using two separate sources ensures power supply
redundancy.
• 200 to 240 VAC, 50–60 Hertz
• Protected by a circuit breaker in accordance with local electrical codes
• Supply circuit, line fusing, and wire size that are adequate according to the electrical rating
on the chassis nameplate
• Grounded AC outlets installed by a licensed electrician and compatible with the power
cords
The switch includes a universal power supply capable of functioning worldwide without voltage
jumpers or switches. The power supply is auto ranging in terms of accommodating input
voltages and line frequencies.
HP recommends connecting two optional Power Distribution Units (PDUs) to the switch for
power redundancy. The recommended PDU is E7671A. HP recommends that you do not
connect the switch to the wall, because it would require two dedicated wall outlets. Using the
PDU, you can connect more devices to a power source.
Core Switch 2/64 and SAN Director 2/128 installation guide 29