Upc/Ean Security Level; Decode Redundancy For Codabar - Symbol LS 3603 Product Reference Manual

LS 3603 Product Reference Guide
• Decode Options (Continued)

UPC/EAN Security Level

The LS 3603 offers four levels of decode security for UPC/EAN bar codes.
Increasing levels of security are provided for decreasing levels of bar code
quality. There is an inverse relationship between security and scanner
aggressiveness, so be sure to choose only that level of security necessary for
any given application.
Security Level 0 - This is the default setting which allows the scanner to
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operate in its most aggressive state, while providing sufficient security
in decoding "in spec" UPC/EAN bar codes.
Security Level 1 - As bar code quality levels diminish, certain characters
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become prone to mis-decodes before others (i.e., 1, 2, 7, 8). If you are
experiencing mis-decodes of poorly printed bar codes, and the mis-
decodes are limited to these characters, select this security level.
Security Level 2 - If you are experiencing mis-decodes of poorly printed
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bar codes, and the mis-decodes are not limited to characters 1, 2, 7 and 8,
select this security level.
Security Level 3 - If you have tried Security Level 2, and are still
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experiencing mis-decodes, select this security level. Be advised, selecting
this option is an extreme measure against mis-decoding severely out of
spec bar codes. Selection of this level will significantly impair the
decoding aggressiveness of the scanner.

Decode Redundancy for Codabar

When enabled, a Codabar symbol must be decoded in both directions before
being accepted as a successful decode.
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