70 HF680 Series User Guide
When Check Character is set to Validate, but Don’t Transmit, the unit will only 
read Codabar barcodes printed with a check character, but will not transmit the 
check character with the scanned data.
Codabar Concatenation
Codabar supports symbol concatenation. When you enable concatenation, the 
scanner looks for a Codabar symbol having a “D” start character, adjacent to a 
symbol having a “D” stop character. In this case the two messages are 
concatenated into one with the “D” characters omitted. 
Select Require to prevent the scanner from decoding a single “D” Codabar symbol 
without its companion. This selection has no effect on Codabar symbols without 
Stop/Start D characters.
Validate Modulo 16, but
Don’t Transmit
Validate Modulo 16 
and Transmit