DELL E10J User Manual

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Electrical Safety Precautions
Always follow electrical safety precautions to avoid injury and damage to Storage Center equipment.
WARNING: Disconnect power from the storage system when removing or installing components 
that are not hot-swappable. When disconnecting power, first power down the storage system 
using the Dell Storage Client and then unplug the power cords from all the power supplies in the 
storage system.
• Provide a suitable power source with electrical overload protection. All Storage Center components 
must be grounded before applying power. Make sure that there is a safe electrical earth connection to 
power supply cords. Check the grounding before applying power.
• The plugs on the power supply cords are used as the main disconnect device. Make sure that the 
socket outlets are located near the equipment and are easily accessible.
• Know the locations of the equipment power switches and the room's emergency power-off switch, 
disconnection switch, or electrical outlet.
• Do not work alone when working with high-voltage components.
• Use rubber mats specifically designed as electrical insulators.
• Do not remove covers from the power supply unit. Disconnect the power connection before 
removing a power supply from the storage system.
• Do not remove a faulty power supply unless you have a replacement model of the correct type ready 
for insertion. A faulty power supply must be replaced with a fully operational module power supply 
within 24 hours.
• Unplug the storage system chassis before you move it or if you think it has become damaged in any 
way. When powered by multiple AC sources, disconnect all supply power for complete isolation.
Electrostatic Discharge Precautions
Always follow electrostatic discharge (ESD) precautions to avoid injury and damage to Storage Center 
equipment.
Electrostatic discharge (ESD) is generated by two objects with different electrical charges coming into 
contact with each other. The resulting electrical discharge can damage electronic components and 
printed circuit boards. Follow these guidelines to protect your equipment from ESD:
• Dell recommends that you always use a static mat and static strap while working on components in 
the interior of the storage system chassis.
• Observe all conventional ESD precautions when handling plug-in modules and components.
• Use a suitable ESD wrist or ankle strap.
• Avoid contact with backplane components and module connectors.
• Keep all components and printed circuit boards (PCBs) in their antistatic bags until ready for use.
General Safety Precautions
Always follow general safety precautions to avoid injury and damage to Storage Center equipment.
• Keep the area around the storage system chassis clean and free of clutter.
• Place any system components that have been removed away from the storage system chassis or on a 
table so that they are not in the way of foot traffic.
• While working on the storage system chassis, do not wear loose clothing such as neckties and 
unbuttoned shirt sleeves, which can come into contact with electrical circuits or be pulled into a 
cooling fan.
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Replacing SCv2000/SCv2020 Components