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User Guide
• Keep the unit away from direct strong magnetic fields, excessive dust, and electronic/electrical
equipment that generate electrical noise.
5.4 Power Connections
Be aware of the ampere limit on any power supply or extension cables being used. The total ampere rating
being pulled on a circuit by all devices combined should not exceed 80% of the maximum limit for the
circuit.
CAUTION The power outlet must be easily accessible close to the unit.
Always use properly grounded, unmodified electrical outlets and cables. Ensure all outlets and
cables are rated to supply the proper voltage and current.
This unit has more than one power supply connection; both power cords must be removed from the
power supplies to completely remove power from the unit. There is no switch or other disconnect device.
When power cycling the unit, wait 10 seconds before re-applying power. Failure to do so may cause the
enclosure to boot up in an inaccessible state. If this is encountered, remove power, wait 10 seconds, and
then reapply power.
5.5 Power Cords
Use only tested and approved power cords to connect to properly grounded power outlets or
insulated sockets of the rack's internal power supply.
If an AC power cord was not provided with your product, purchase one that is approved for use in your
country or region.
CAUTION To avoid electrical shock or fire, check the power cord(s) that will be used with the product as
follows:
• The power cord must have an electrical rating that is greater than that of the electrical current rating
marked on the product.
• Do not attempt to modify or use the AC power cord(s) if they are not the exact type required to fit into
the grounded electrical outlets.
• The power supply cord(s) must be plugged into socket-outlet(s) that is / are provided with a suitable
earth ground.
• The power supply cord(s) is / are the main disconnect device to AC power. The socket outlet(s) must
be near the equipment and readily accessible for disconnection.
5.6 Rackmountable Systems
CAUTION: Always install rack rails and storage enclosure according to Ultrastar Data102 product
documentation. Follow all cautions, warnings, labels, and instructions provided within the rackmount
instructions.
Reliable grounding of rack-mounted equipment should be maintained.
5. Safety
5.4 Power Connections
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