Code 39 Security Level - Symbol DS4308 Product Reference Manual

11 - 38 DS4308/DS4308P Digital Scanner Product Reference Guide

Code 39 Security Level

Parameter # 750 (SSI # F1h EEh)
The digital scanner offers four levels of decode security for Code 39 bar codes. 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 bar codes.
•
Code 39 Security Level 1: This default setting eliminates most misdecodes.
•
Code 39 Security Level 2: Select this option with 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.
Code 39 Security Level 0
Code 39 Security Level 2
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 bar codes.
(0)
(2)
*
Code 39 Security Level 1
(1)
Code 39 Security Level 3
(3)