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Product Reference Guide 35
Code 39
Read: Format:
Checksum Verification: The checksum is optional and presented as the sum
mod 43 of the numerical value of the data digits.
Checksum Transmission: When this option is enabled, the QS2500 will
transmit the checksum.
Maximum/Minimum Code Length: Each symbology has own maximum and
minimum code length, which can be set to qualify data entry. The length
is defined as the actual bar code data length to be sent. Labels with lengths
below the minimum or above the maximum will be rejected. If the maxi-
mum and minimum code lengths for a specific symbology are both set to
zero, the global minimum and maximum code length settings are in
effect.
Truncate Leading/Ending: Same as UPC-A. See page 27.
Code ID Setting: Same as UPC-A. See page 27.
Insertion Group Selection: Same as UPC-A. See page 27.
Format: The Full ASCII Code 39, an enhanced set of Code 39, uses a total
of 128 characters to represent Full ASCII code. Each Full ASCII Code 39
character is a combination of one of the characters +,%, $ and / with an
uppercase alphabetical character (A to Z).
Start “*” Data Digits (Variable) Checksum (Optional) End “*”
NOTE
Make sure that the minimum length setting is not greater than the maxi-
mum length setting; otherwise, all the labels of the symbology will be
unreadable. You can set the same value for both minimum and maximum
length to force decoding of only bar codes of a certain length.