AML M2500 Decoder - Manual (Page 77)

The Code 93 bar code symbology is a variable length alphanumeric code containing
the full 128 ASCII character set. Each character is made up of 9 modules with three
bars and three spaces. The bars can be 1, 2, or 3 modules wide except for the start/
stop character. The spaces can be 1, 2, 3, or 4 modules wide. Code 93 bar codes
contain a mandatory two digits for data integrity.
CHARACTERISTICS
Character Set: 128 ASCII character set
Symbol Length: Variable
Check Digit: 2
Bi-directional Decoding: Yes
Maximum Density: 14.8 char./inch (using .0075 inch narrow element)
CHARACTER SET
The following tables represent Code 93 data. Table 1 defines all of the USS-93
character assignments. Table 2 shows the full ASCII character set with the special
control characters.
APPENDIX J - CODE 93 SPECIFICATIONS
Table 1. USS-93 Character Assignments
J - 1