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Preparing for installation
Safety sign conventions
To avoid bodily injury or damage to the device or its components, make sure you are familiar with the
safety signs on the device chassis or its components.
Table1-1 Safety signs
Sign
Description
Circuit or electricity hazards are present. Only H3C authorized or professional
device engineers are allowed to service, repair, or upgrade the device.
WARNING!
To avoid bodily injury or damage to circuits, do not open any components marked
with the electrical hazard sign unless you have authorization to do so.
Electrical hazards are present. Field servicing or repair is not allowed.
WARNING!
To avoid bodily injury, do not open any components with the field-servicing
forbidden sign in any circumstances.
The surface or component might be hot and present burn hazards.
WARNING!
To avoid being burnt, allow hot surfaces or components to cool before touching
them.
The device or component is heavy and requires more than one people to carry or
move.
WARNING!
To avoid bodily injury or damage to hardware, do not move a heavy component
alone. In addition, observe local occupational health and safety requirements and
guidelines for manual material handling.
The device is powered by multiple power supplies.
WARNING!
To avoid bodily injury from electrical shocks, make sure you disconnect all power
supplies if you are performing offline servicing.
Safety recommendations
To avoid any equipment damage or bodily injury, read the following safety recommendations before
installation. Note that the recommendations do not cover every possible hazardous condition.
Safety symbols
When reading this document, note the following symbols:
WARNING
means an alert that calls attention to important information that if not understood or
followed can result in personal injury.
