Symbol Technologies DS 3408 - Manual (Page 219)

Symbologies 13-61
Security Level
Parameter # 4Dh
The digital scanner 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
digital scanner aggressiveness, so choose only that level of security necessary for any given application.
• Security Level 0: This default setting allows the digital scanner 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 security level should eliminate most misdecodes.
• Security Level 2: Select this option if Security level 1 fails to eliminate misdecodes.
• Security Level 3: If Security Level 2 was selected 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 digital scanner. If this level of security is necessary, 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)