AML M2500 Decoder - Manual (Page 72)

APPENDIX H - CODABAR SPECIFICATIONS
The Codabar bar code symbology is a numeric code (0 - 9) that also contains six
special characters and four start/stop characters. The start/stop characters may or
may not be transmitted. Characters are constructed of four bars and three spaces.
Codabar is commonly used in libraries, blood banks, cotton industry, and the
transportation industry.
CHARACTERISTICS:
Character Set: 10 digits (0 - 9)
6 special characters (- $ : / . +)
4 stop/start characters (a b c d)
Symbol Length: Variable
Check Digit: Optional
Bi-directional Decoding: Yes
Maximum Density: 12.8 char./inch
(using .0075 inch narrow element)
CHARACTER SET:
The following table illustrates the data patterns. A "1" represents a wide bar or
space and a "0" represents a narrow bar or space.
A123456B
CHARACTER PATTERN
0 0000011
1 0000110
2 0001001
3 1100000
4 0010010
5 1000010
6 0100001
7 0100100
8 0110000
9 1001000
- 0001100
$ 0011000
: 1000101
/ 1010001
. 1010100
+ 0010101
a 0011010
b 0101001
c 0001011
d0001110
H - 1