Appendix G
Operator
’s Guide
RJS, Minneapolis, MN
003-4500
84
Appendix G (Code 128)
Code 128
Code 128 can encode all the characters currently
encodable in the various code formats presently in
existence. This includes: All ASCII alphanumeric
characters (numbers, letters, special characters, control
characters in the 128 character set and the distinction of
the 3 subsets, A, B and C).
Code subset A includes the standard alphanumeric
(upper case only) keyboard characters plus control and
special characters.
Code subset B includes all the standard alphanumeric
(upper and lower case).keyboard characters and special
characters
Code subset C includes a set of 100 digit pairs from 00 to
99 inclusive, allowing two numeric digits per symbol, plus
special characters.
The last 7 characters in Subsets A and B (96 - 102) and
the last 3 characters in Subset C (100 - 102) are special
characters that are specific to the scanning device.
Code 128 also offers the flexibility to
“shift” to other
subsets in order to combine the
“unique” features into
one condensed bar code.