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—allows the scanner to operate in its most aggressive state, while providing sufficient security in decoding most in-spec bar codes.
- Code 39 Security Level 1—eliminates most mis-decodes while maintaining reasonable aggressiveness.
- Code 39 Security Level 2—applies greater bar code security requirements if Security Level 1 fails to eliminate mis‑decodes.
- Code 39 Security Level 3—if Security Level 2 is selected and mis‑decodes still occur, select this security level to apply the highest safety requirements.
Important
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.
Scan one of the following bar codes to set the Code 39 security level. By default, this parameter is set to Level 1.
