Security Level - Motorola Symbol MS4404 Integration Manual

11 - 78 Symbol MS4404/MS4407 Integration Guide

Security Level

Parameter # 4Dh
The imager offers four levels of decode security for delta bar codes, which include the Code 128 family, UPC/EAN,
and Code 93. Select increasing levels of security for decreasing levels of bar code quality. There is an inverse
relationship between security and imager aggressiveness, so choose only that level of security necessary for any
given application.
•
Security Level 0: This setting allows the imager to operate in its most aggressive state, while providing
sufficient security in decoding most "in-spec" bar codes.
•
Security Level 1: Select this option if misdecodes occur. This default setting eliminates most misdecodes.
•
Security Level 2: Select this option if Security level 1 fails to eliminate misdecodes.
•
Security Level 3: If you selected Security Level 2 and misdecodes still occur, select this security level. Be
advised, selecting this option is an extreme measure against mis-decoding severely out of spec bar codes.
Selecting this level of security significantly impairs the decoding ability of the imager. If you need this level of
security, try to improve the quality of the bar codes.
Security Level 0
Security Level 2
(00h)
(02h)
*
Security Level 1
(01h)
Security Level 3
(03h)