12 - 70 MT2070/MT2090 User Guide
Security Level

Parameter # 4Dh

The device offers four levels of decode security for delta bar codes, which includ e 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 device aggressiveness, so choose only that level of security necessary for any
given application.
•
Security Level 0: This setting allows the device to operate in its most aggressive state, whi le providing
sufficient security in decoding most “in-spec” bar codes.
•
Security Level 1: This default setting eliminates most misdecodes.
•
Security Level 2: Select this option if Security level 1 fails to eliminate misdecod es.
•
Security Level 3: If you selected Security Level 2 and misd ecodes still occur, select this security level. Be
advised, selecting this option is an extreme measure against mis-decodin g severely out of spec bar codes.
Selecting this level of security significantly impairs the decoding ability of th e device. If you need this level of
security, try to improve the quality of the bar codes.
*Security Level 0
(00h)
Security Level 1
(01h)
Security Level 2
(02h)
Security Level 3
(03h)