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Appendix D - Bar Code Information
This section has answers to frequently asked
questions about bar coding in general.
Frequently Asked
Questions About
Bar Codes
Q.What do I need to know about bar
codes?
A. Listed below are characteristics that most bar
codes have in common:
Bars and Spaces - Each symbol has a de-
fined pattern of bars and spaces which can be
read or scanned by a bar code reader. The
width of both bars and spaces vary and allow
the representation of different characters.
The height of the bars has interpretive infor
-
mation, yet provides data redundancy so
that the scanner is not limited to a single scan
path.
Character Set - Each bar code symbology
has its own defined character set. In some
cases, these sets are alphanumeric with addi
-
tional special characters, while other symbo
-
logies only allow encoding digits 0 through 9.
980009-001 Rev.F D-1
Appendix D - Bar Code Information
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