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Chapter 1 Prevenve and Cauonary Tips
Before connecng and operang your device, please be advised of the following ps:
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Ensure unit is installed in a well-venlated, dust-free environment.
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Keep all liquids away from the device.
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Ensure environmental
condions meet factory specicaons.
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Ensure unit is properly secured to a rack or shelf. Major shocks or jolts to the unit as a result of
dropping it may cause damage to the sensive electronics within the unit.
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Use the device in conjuncon with an UPS if possible.
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Power down the unit before
connecng and disconnecng accessories and peripherals.
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A factory recommended HDD should be used for this device.
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Improper use or replacement of the
baery may result in hazard of explosion. Replace with the
same or equivalent type only. Dispose of used baeries according to the instrucons provided by
the manufacturer.
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It is recommended to choose a 12 V 7 AH lead-acid baery that meets the IEC 60896 standard.
The baery wiring method is shown in the following gure.
DS-K281X Series Access Controller User Manual
1
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