Reference Guide

Symbologies
249
Code 39 Security Level
Parameter # 750 (SSI # F1h EEh)
The digital scanner offers four levels of decode security for Code 39 barcodes. There is an inverse
relationship between security and digital scanner aggressiveness. Increasing the level of security can
reduce scanning aggressiveness, so select only the level of security necessary.
• Code 39 Security Level 0: This setting allows the digital scanner to operate in its most aggressive
state, while providing sufficient security in decoding most in-spec barcodes.
• Code 39 Security Level 1: This default setting eliminates most misdecodes.
• Code 39 Security Level 2: Select this option with greater barcode 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 barcodes.
Selecting this level of security significantly impairs the decoding ability of the digital scanner. If this level of
security is required, try to improve the quality of the barcodes.
Code 39 Security Level 0
(0)
*Code 39 Security Level 1
(1)
Code 39 Security Level 2
(2)
Code 39 Security Level 3
(3)
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