HP StorageWorks 2/64 HP StorageWorks Core Switch 2/64 and SAN Director 2/128 I - Page 29
Cooling requirements, Protected by a circuit breaker in accordance with local electrical codes
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• 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