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M3000 Portable Bar Code Reader User's Guide

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APPENDIX I - CODE 93 SPECIFICATIONS

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.

Table 1. USS-93 Character Assignments

1 2 ... 140 141 142 143 144 145 146 147 148 149 150 ... 155 156

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AML M3000 Guide de l'utilisateur Page 145