Huawei BBU3900 User Manual page 13

BBU3900 GSM
User Guide
1.1 Safety Precautions
This section describes certain safety precautions and helps to choose the measurement device
and testing device. Read and follow these safety precautions before installing, operating, and
maintaining Huawei devices.
Following All Safety Precautions
Before any operation, read the instructions and precautions in this document carefully to
minimize the possibility of accidents.
The Danger, Caution, and Note items in the package of documents do not cover all the safety
precautions that must be followed. They only provide the generic safety precautions for
operations.
Symbols
This symbol indicates that casualty or serious accident may occur if you ignore the safety
instruction.
This symbol indicates that serious or major injury may occur if you ignore the safety instruction.
Issue 04 (2008-09-05)
DANGER
CAUTION
NOTE
This symbol indicates that the operation may be easier if you pay attention to the safety instruction.
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Safety Information
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