Worth Data RF Laser 사용자 설명서

다운로드
페이지 60
36
 a12345b 
Appendix E 
Codabar Specifications 
Codabar is widely used in libraries, blood banks, the cotton industry and 
transportation industries.  Its' character set consists of numbers 0 through 9
and punctuation characters + . - / : and $.  Symbols a, b, c, d, t, n, * and are 
used as start and stop characters.  Characters are constructed of four bars and 
three spaces. 
 
Codabar is a numeric-only code, but different 
combinations of start and stop characters can be used to 
identify different types of labels. Codabar's variable 
data length and extremely low error rate make for a 
versatile bar code.  
  
Codabar start/stop transmission 
The Codabar section on the RF Laser Reader Setup Menu lets you determine 
whether Codabar start/stop characters are transmitted or not.  If you are 
varying start/stop characters with different types of labels, you'll want to 
"Enable Stop/Start character Transmission". Start/stop character 
transmission can also be helpful if you want your program to differentiate 
between data coming from the RF Laser Reader and data coming from the 
keyboard.  If neither situation applies, you'll probably want to disable it.