HP ProCurve 4000M Installation Manual page 5

WARNING
Safety Information
Documentation reference symbol. If the product is
marked with this symbol, refer to the product
documentation to get more information about the
product.
WARNING A WARNING in the manual denotes a hazard that can
cause injury or death.
CAUTION A CAUTION in the manual denotes a hazard that can
damage equipment.
Do not proceed beyond a WARNING or CAUTION until you
have understood the hazardous conditions and have taken
appropriate steps.
This unit is intended for installation in a restricted access
location, where access can only be gained by qualified service
personnel. Such an area may be accessed only through the use of
a special tool or a lock and key, or other means of security, and is
controlled by the authority responsible for the location.
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