DFI ES121-LR - Manual (Page 9)

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9
Introduction
Safety Precautions
General
• Follow all instructions and warnings specified in this section and all throughout
the manual�
• Keep this manual in a safe place for easy reference later on�
• Always use components, e�g� screws, provided in the accessory package� Using
unverified components may cause damage�
Static Electricity Precautions
• Ground yourself at all times to remove static electrical discharge prior to
touching the system board, components or devices� Most electrical devices are
sensitive to static electric charges�
• As a safety precaution, wear an antistatic wrist strap�
• Place all devices on a static-free surface or leave them in their anti-static bag
until you are ready to install it�
Power
• Unplug the power cord before removing the system chassis cover for installa-
tion or servicing� After installation or servicing, cover the system chassis be-
fore plugging the power cord�
• Do not connect any devices while the power is on� Sensitive electronic compo-
nents may be damaged by sudden power surges�
• Use an appropriate electrical outlet� Check the voltage of the power source
prior to plugging the system to the outlet�
• The system must be place near an electrical outlet which is easily accessible�
• Place the power cord in such a way that it will not be stepped on� Do not place
heavy objects on top of the AC adapter or power cord� Use a power cord that
has been approved for use with the system and that it matches the voltage
and current marked on the system’s electrical range label�
• The AC adapter is a high-voltage component� Do not attempt to repair it on
your own�
• The unit uses a three-wire ground cable which is equipped with a third pin to
ground the unit and prevent electric shock� Do not defeat the purpose of this
pin� If your outlet does not support this kind of plug, contact your electrician
to replace the outlet�
• If you are not using the system for a long time, unplug it from the power
source to avoid damage by transient overvoltage�