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Programming Guide 63
Interleaved 2 of 5
The Interleaved 2 of 5 symbology has the following programmable features:
Check Digit — calculates the Check Digit to verify that the Check
Digit contained in the bar code label is correct. If you enable
this feature, your bar codes must contain a Check Digit.
You may also choose to transmit or not transmit the Check
Digit independent of whether the Check Digit is calculated by
the scanner. The Transmit Check Digit will have no effect
unless the Compute Check Digit feature is enabled. If you
choose Don’t Compute Check Digit, the scanner sends the
Check Digit encoded in the bar code without verifying its
accuracy. If you choose both Compute Check Digit and Don't
Transmit Check Digit, the scanner will remove the Check Digit's
contents before sending the bar code data to the host.
Label Format — provides the selection between fixed or variable
length labels. If your application has labels with specific fixed
lengths, we recommend selecting fixed lengths to improve read
rate and avoid short reads.
You can select any valid number of digits for reading specific
length labels only. Read the following details for specific
Interleaved 2 of 5 limits.
Interleaved 2 of 5 Label Lengths
Interleaved 2 of 5 Minimum Label Length — sets the minimum
label length required for I 2/5 labels (not including the check
character). This feature is provided to ignore small label
segments, reducing the possibility that a portion of a good label
is incorrectly seen as an entire label.
Variable Length — if you select variable length, the scanner will
recognize labels with an even number of digits between 04 and
50
*
digits.
Fixed Length — if you select fixed length, there are three labels
for programming your scanner to read either one or two fixed
lengths. The labels are:
• Set First Fixed Length — use this label to instruct the
scanner that the next two programming labels you scan will
define the first fixed label length. This setting can be any even
number of digits between 02 and 50
*
digits.
* For variable length symbologies, the QS6000/6000 Plus will decode up to 50 characters, but
the actual length varies with label size and quality. The IBM POS interface is limited to 32
characters labels.