Dell SC180 Owner's Manual

Also see for SC180: Owner's manual

Electrical Safety PrecautionsAlways follow electrical safety precautions to avoid injury and damage to Storage Center equipment.WARNING: Disconnect power from the expansion enclosure when removing or installingcomponents that are not hot-swappable. When disconnecting power, first power down thestorage system using the Dell Storage Client and then unplug the power cords from all the powersupplies in the expansion enclosure.• Provide a suitable power source with electrical overload protection. All Storage Center componentsmust be grounded before applying power. Make sure that there is a safe electrical earth connection topower 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 thesocket 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 beforeremoving a power supply from the expansion enclosure.• Do not remove a faulty power supply unless you have a replacement model of the correct type readyfor insertion. A faulty power supply must be replaced with a fully operational module power supplywithin 24 hours.• Unplug the storage system chassis before you move it or if you think it has become damaged in anyway. When powered by multiple AC sources, disconnect all supply power for complete isolation.Electrostatic Discharge PrecautionsAlways follow electrostatic discharge (ESD) precautions to avoid injury and damage to Storage Centerequipment.Electrostatic discharge (ESD) is generated by two objects with different electrical charges coming intocontact with each other. The resulting electrical discharge can damage electronic components andprinted 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 inthe 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 PrecautionsAlways follow general safety precautions to avoid injury and damage to Storage Center equipment.• Keep the area around the expansion enclosure chassis clean and free of clutter.• Place any system components that have been removed away from the expansion enclosure chassis oron a table so that they are not in the way of foot traffic.• While working on the expansion enclosure chassis, do not wear loose clothing such as neckties andunbuttoned shirt sleeves, which can come into contact with electrical circuits or be pulled into acooling fan.Replacing SC180 Components 15