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Safety Information
1.1 Safety Precautions
This section describes certain safety precautions. Read and follow these safety precautions
before installing, operating, and maintaining Huawei devices.This manual can also help to
choose the measurement device and testing device.
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 documents do not cover all the safety precautions
that must be followed. They only provide the generic safety precautions for operations.
Symbols
DANGER
This symbol indicates that casualty or serious accident may occur if you ignore the safety
instruction.
CAUTION
This symbol indicates that serious or major injury may occur if you ignore the safety
instruction.
NOTE
This symbol indicates that the operation may be easier if you pay attention to the safety instruction.
RRU3804
User Guide
1 Safety Information
Issue 01 (2007-11-29)
Huawei Technologies Proprietary
1-1