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Symbologies

154

Code 128 Security Level

Parameter # 751

SSI # F1h EFh

Code 128 barcodes are vulnerable to misdecodes, particularly when Code 128 Lengths is set to Any Length. The

scanner offers four levels of decode security for Code 128 barcodes. 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 128 Security Level 0 - The scanner operates in its most aggressive state, while providing sufficient

security in decoding most in-spec barcodes.

• Code 128 Security Level 1 - This option eliminates most misdecodes while maintaining reasonable

aggressiveness. This is the default.

• Code 128 Security Level 2 - This option applies greater barcode security requirements if Security Level

1 fails to eliminate misdecodes.

• Code 128 Security 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,

and significantly impairs the decoding ability of the scanner. If this level of security is required, try to

improve the quality of the barcodes.

Code 128 Security Level 0

(0)

*Code 128 Security Level 1

(1)

Code 128 Security Level 2

(2)

Code 128 Security Level 3

(3)

Zebra DS9908 Product Reference Guide

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