Upc/Ean/Code 93 Security Level - Motorola LI2208 Product Reference Manual

UPC/EAN/Code 93 Security Level

Parameter # 4Dh
The linear imager offers four levels of decode security for 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 linear
imager aggressiveness, so choose only that level of security necessary for any given application.
•
UPC/EAN Security Level 0: This setting allows the linear imager to operate in its most aggressive state,
while providing sufficient security in decoding most "in-spec" bar codes.
•
UPC/EAN Security Level 1: This default setting eliminates most misdecodes.
•
UPC/EAN Security Level 2: Select this option if Security level 1 fails to eliminate misdecodes.
•
UPC/EAN 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
linear imager. If you need this level of security, try to improve the quality of the bar codes.
UPC/EAN/Code 93 Security Level 0
(00h)
UPC/EAN/Code 93 Security Level 2
(02h)
SYMBOLOGIES 9 - 71
*
UPC/EAN/Code 93 Security Level 1
(01h)
UPC/EAN/Code 93 Security Level 3
(03h)