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SAFETY PRECAUTIONS
Be sure to observe all these safety precautions.
Please READ through these instructions carefully. They will enable you to use the scanner correctly.
Always keep this manual nearby for speedy reference.
Strict observance of these warnings and cautions is a MUST for preventing accidents that could result in bodily injury and
substantial property damage. Make sure you fully understand all definitions of these terms and symbols given below before
you proceed to the text itself.
WARNING
Alerts you to those conditions that could cause serious bodily injury or death if the instructions are
not followed correctly.
CAUTION
Alerts you to those conditions that could cause minor bodily injury or substantial property damage if
the instructions are not followed correctly.
Meaning of Symbols
A triangle ( ) with a picture inside alerts you to a warning of danger. Here you see the warning for electrical shock.
A diagonal line through a circle ( ) warns you of something you should not do; it may or may not have a picture
inside. Here you see a screwdriver inside the circle, meaning that you should not disassemble.
A black circle ( ) with a picture inside alerts you to something you MUST do. This example shows that you MUST
unplug the power cord.
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Summary of Contents for QB30-SR
Page 1: ...2D Code Scanner Fixed type QB30 SR QB30 SU User s Manual...
Page 112: ...Terminator when transmitting None ETX CR LF CR LF 101...
Page 114: ...USB interface to the host USB COM interface default USB keyboard interface 103...
Page 123: ...Beeper control Disable Enable default Indicator LED Disable Enable default 112...