Welch Allyn SCANTEAM 3700 Wedge, Техническое руководство

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6–11
SCANTEAM 3700 Wedge Technical Manual
6.2.4 Interleaved 2 of 5
Decoding
Default All 2 of 5 Settings
Interleaved 2 of 5
Scanning the Default bar code will program the 3700 Wedge to the symbology
options indicated by a  ✱ " in the menu selections on this and the Code 2 of
5Ă/ĂMatrix 2 of 5 programming page.
Interleaved 2 of 5 is a continuous, twoĆwidth symbology capable of encoding
an even number of numerics. OddĆlength messages are usually padded with
a leading 0. Each pair of digits is represented by five bars and five spaces. The
bars encode the first digit: two of these five bars are wide, the other three are
narrow. Following each bar is a space; collectively, the spaces encode the
second digit of the pair. Interleaved 2 of 5 characters are spatially efficient for
the set of numerics.
The start/stop characters are short, but not secure. Their patterns can occur
erroneously in partial scans of a symbol. As a result Interleaved 2 of 5 is prone
to misreads when the scanning path does not include both quiet zones.
Default = On.
The 3700 Wedge uses industry standard decoding algorithms to ensure data
integrity. Adaptive decoding employs a more aggressive decoding algorithm
that is more tolerant when bar code symbols do not conform to the symbology
specifications and that results in snappier" scanning. Default = Adaptive.
9876543210
Interleaved 2 of 5
StartĂ/ĂStop Characters
✱
Default All Interleaved 2 of 5 Settings
✱
Interleaved
2 of 5
✱
On
Off
Decoding
✱
Adaptive
Traditional
Programming Tip: If a symbology won't be used, we recommend turning it off
to minimize the chance of a misread.