Zebra DS2278

12 - 52 DS2278 Digital Scanner Product Reference Guide
I 2 of 5 Security Level
Parameter # 1121
SSI # F8h 04h 61h
I 2 of 5 bar codes are vulnerable to misdecodes, particularly when I 2 of 5 Lengths is set to Any Length. The
scanner offers four levels of decode security for I 2 of 5 bar codes. There is an inverse relationship between
security and scanner aggressiveness. Increasing the level of security can reduce scanning aggressiveness, so
select only the level of security necessary.
• I 2 of 5 Security Level 0: The scanner operates in its most aggressive state, while providing sufficient
security in decoding most in-spec bar codes.
• I 2 of 5 Security Level 1: A bar code must be successfully read twice, and satisfy certain safety
requirements before being decoded. This default setting eliminates most misdecodes.
• I 2 of 5 Security Level 2: This option applies greater bar code security requirements if Security Level 1 fails
to eliminate misdecodes.
• I 2 of 5 Security Level 3: If you selected Security Level 2, and misdecodes still occur, select this security
level. The highest safety requirements are applied. A bar code must be successfully read three times before
being decoded.
NOTE Selecting this option is an extreme measure against mis-decoding severely out-of-spec bar codes,
and significantly impairs the decoding ability of the scanner. If this level of security is required, try to
improve the quality of the bar codes.
I 2 of 5 Security Level 0
(0)
*I 2 of 5 Security Level 1
(1)
I 2 of 5 Security Level 2
(2)
I 2 of 5 Security Level 3
(3)