Aml M2500 Decoder User Manual download pdf (Page 62)

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C - 1

APPENDIX C - CODE 39 SPECIFICATIONS

Code 39 is a variable length alphanumeric code. Each character is made up of

nine elements, five bars and four spaces. Three of the elements are wide and

six are narrow. Code 39 is a popular choice for applications because:

- it is easy to print with low cost dot matrix printers

- large character set (A-Z, 0-9, 7 special characters)

- code can be extended to include the entire 128 ASCII character set

- variable length

CHARACTERISTICS:

Character Set: 26 uppercase letters (A - Z)

10 digits (0 - 9)

7 special characters (SPACE -.$/+%)

Symbol Length: Variable

Check Digit: Optional

Bi-directional Decoding: Yes

Maximum Density: 9.8 char./inch

(using .0075 inch narrow element)

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Aml M2500 Decoder User Manual Page 62