11 - 38 DS2208 Digital Scanner Product Reference Guide
Code 39 Security Level
Parameter # 750
SSI # F1h EEh
The scanner offers four levels of decode security for Code 39 bar codes. There is an inverse relationship between
security and scanner aggressiveness. Increasing the level of security can reduce scanning aggressiveness, so
select only the level of security necessary.
• Code 39 Security Level 0: The scanner operates in its most aggressive state, while providing sufficient
security in decoding most in-spec bar codes.
• Code 39 Security Level 1: This default setting eliminates most misdecodes.
• Code 39 Security Level 2: This option applies greater bar code security requirements if Security Level 1
fails to eliminate misdecodes.
• Code 39 Level 3: If you selected Security Level 2, and misdecodes still occur, select this security level to
apply the highest safety requirements.
NOTE Selecting this option is an extreme measure against mis-decoding severely out-of-spec bar codes, and
significantly impairs the decoding ability of the scanner. If this level of security is required, try to improve
the quality of the bar codes.