Cautions and Warnings

Electrical Safety Precautions

During installation or maintenance procedures, wear a grounding wrist strap to avoid ESD damage to the electronics of the appliance. Use a conductive wrist strap attached to a good earth ground or to the appliance. You can attach it to the connector beside the ESD symbol on the back.

Follow basic electrical safety precautions to protect yourself from harm and the appliance from damage.

  • Be aware of the location of the emergency power off (EPO) switch, so that you can quickly remove power to the appliance if an electrical accident occurs.
  • Do not use mats designed to decrease static electrical discharge as protection from electrical shock. Instead, use rubber mats that have been specifically designed as electrical insulators.
  • Make sure that the power supply cords include grounding plugs and are plugged into grounded electrical outlets.
  • Make sure that the power source can handle the appliance’s maximum power consumption rating with no danger of an overload.
  • A reliable ground must be maintained at all times. Therefore, the rack should be grounded. Pay particular attention to power supply connections other than the direct connection to the branch circuit (for example, connections to power strips).


  • Electrostatic discharge (ESD) can damage your equipment.
  • Do not place any objects on the appliance.
  • Do not cover vent holes on the side of the appliance.
  • Metal surface of the appliance can get heated up.
  • Use caution when touching the metal surface of the appliance.

Rack Precautions

  • Make sure that the leveling jacks on the bottom of the rack are fully extended to the floor, with the full weight of the rack resting on them.
  • For a single-rack installation, attach a stabilizer to the rack.
  • For a multiple-rack installation, couple (attach) the racks together.
  • Always make sure that the rack is stable before extending a component from the rack.
  • Extend only one component at a time. Extending two or more simultaneously might cause the rack to become unstable.
  • The handles on the left and right of the front panel of the appliance should be used only for extending the appliance out of the rack. Do not use these handles for mounting the appliance on the rack. Use the rack-rail hardware, described later, instead.