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Bar code types
Code Type
Code 3 of 9
Interleaved 2
or 5
Codabar
9-6
During installation, the type of bar code used is defined for each
mode. The Bar Code Reader is capable of reading and decoding
three different types of bar codes.
Code 3 of 9 — also known as Code 39, is a widely used code in
which 9 bars or spaces comprise the characters, 3 of which are wide.
Interleaved 2 of 5 — or I 2 of 5, is a compact, interleaved code for
numeric characters only. Each digit is represented by 5 bars or
spaces, 2 of which are wide.
Codabar — similar to Code 3 or 9, but not as widely used. Codabar
includes only numeric and special characters.
The following table shows a comparison of bar code types:
Character Set
alphanumeric
space
special characters: - .$ / + %
numeric
numeric
special characters: - $
Available
Characters in Set
43
* / *
10
both unique
a-d /a-d
12
A-61139 March 2000
Start/Stop
Characters
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