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Interleaved 2 of 5 (I 2 of 5) Security Level
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Interleaved 2 of 5 (I 2 of 5) Security Level

Parameter #
1121
 (SSI #F8h 04h 61h)
This parameter sets the security level for I 2 of 5.
I 2 of 5 barcodes are vulnerable to misdecodes, particularly when I 2 of 5 Lengths is set to Any Length. The scanner offers four levels of decode security for I 2 of 5 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.
  • I 2 of 5 Security Level 0: The scanner operates in its most aggressive state, while providing sufficient security in decoding most in-spec barcodes.
  • I 2 of 5 Security Level 1: A barcode must be successfully read twice, and satisfy certain safety requirements before being decoded. This default setting eliminates most misdecodes.
  • I 2 of 5 Security Level 2: This option applies greater barcode security requirements if Security Level 1 fails to eliminate misdecodes.
  • I 2 of 5 Security Level 3: If you selected Security Level 2, and misdecodes still occur, select this security level. The highest safety requirements are applied. A barcode must be successfully read three times before being decoded.
    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.
barcode
I 2 of 5 Security Level 0 (0)
barcode
*I 2 of 5 Security Level 1 (1)
barcode
I 2 of 5 Security Level 2 (2)
barcode
I 2 of 5 Security Level 3 (3)