1
Preface
Symbols Definition
For the symbols that might appear in this document, the meanings they represent are as the
following:
Symbol Meaning
There is highly potential danger. If it cannot be avoided, it will lead to the deaths or
serious injury.
There is medium or low potential danger. If it cannot be avoided, it will lead to medium
or slight injury.
There are potential risks. If ignore these texts, it may cause damage to the device,
data loss, equipment performance reduce or unpredictable results.
Tips that help you to solve problems or save your time.
Remarks. Additional information to the text, in order to emphasize something.