5
Electrical Safety
Follow these basic electrical safety precautions to protect yourself from harm and to protect the appliance
from damage:
• Be aware of the power switch locations on the appliance chassis, the emergency power-off switch for the housing
room, the disconnection switch, and the electrical outlet. This awareness allows quick removal of electrical power
from the system should an electrical accident occur.
• Do not work alone when working with high voltage components.
• When working around exposed electrical circuits, another person familiar with the power-off controls should be
nearby to switch off the power if necessary.
• Use only one hand when working with powered-on electrical equipment. This prevents making a complete
circuit, which can cause electrical shock. Use extreme caution when using metal tools, which can easily damage
electrical components or circuit boards when they come into contact with them.
• Do not use mats designed to decrease electrostatic discharge to protect from electrical shock. Instead, use rubber
mats that have been specifically designed as electrical insulators.
• The power supply power cord must include a grounding plug and must be plugged into grounded electrical outlets.
• To prevent fire or shock hazard, do not expose the unit to rain or moisture, or install this product near water.
• Avoid installing this product during a lightning storm.
• Ensure that the air vents (openings along the sides and back) are never blocked and that there is sufficient airflow
through the vents to prevent over-heating.
General Safety
• Keep the area around the appliance clean and free of clutter.
• Locate a safe and dry location to set this product, keeping it away from wet surfaces/surroundings.
• While working on the system, do not wear loose clothing, such as neckties and unbuttoned shirt sleeves, which
can contact electrical circuits or be pulled into a cooling fan.
• Remove any jewelry or metal objects from your body, which can act as excellent metal conductors, creating short
circuits, and potentially harming you if they contact printed circuit boards or powered areas.
• For plugged in equipment, the socket-outlet must be installed near the equipment and be easily accessible.
Electrostatic Discharge Precautions
Electrostatic discharge (ESD) is generated by two objects with different electrical charges coming into contact
with one another. An electrical discharge, which can damage electronic components and printed circuit boards,
neutralizes this difference.
• Use a grounded wrist strap designed to prevent static discharge.
• Keep all components and printed circuit boards (PCBs) in their antistatic bags until ready for use.
• Touch a grounded metal object before removing the board from the antistatic bag.
• Do not let components or PCBs contact your clothing, which may result in a charge despite wearing a wrist strap.
• Handle a board by its edges only; do not touch its components, peripheral memory modules, or contacts.
• When handling chips or modules, avoid touching their pins.
• Put the server board and peripherals back into their antistatic bags when not in use.
• For grounding purposes, make sure your computer chassis provides excellent conductivity between the power
supply, the case, the mounting fasteners, and the server board.
• After accessing the inside of a system, close the system back up and secure it to the rack unit with the retention
screws after ensuring that all connections have been made.
Security
