NCR 74 OFX (7874), User Manual

Page: 146 / 268

5-38 Chapter 5: Programming
Codabar Check Digit
The Codabar Check Digit parameter permits control of Codabar check digit
requirement. Scan the appropriate Hex tag (Hex 1 to Hex 0) to enable or disable the
check digit. The default is Hex 0—Disable Codabar check digit.
Codabar Check Digit Transmission
The Codabar Check Digit Transmission parameter selects whether to send the check
digit to the host terminal. Scan the Hex 0 tag to disable this option, or the Hex 1 tag to
enable this option.
Codabar Tone Length
The Codabar Tone Length parameter permits you to set the length of the Codabar
tone. Set this parameter by scanning the appropriate Hex tag ( Hex 0 to Hex F ). Each
Hex tag is incremented by 15 milliseconds. For example, Hex 0 = 0 ms, Hex 1 = 15 ms,
Hex 2 = 30 ms, Hex 3 = 45 ms, and so forth. The default Codabar Tone Length is 75 ms
( Hex 5 ).
Codabar Tone Frequency
This parameter permits you to set the frequency of the Interleaved 2 of 5 tone. Set this
parameter by scanning the appropriate Hex tag ( Hex 0 to Hex 7 ).
Hex Tag Frequency in Hertz
Hex 0 702 Hz
Hex 1 781 Hz
Hex 2 868 Hz
Hex 3 961 Hz
Hex 4 1071 Hz
Hex 5 1187 Hz
Hex 6 570 Hz
Hex 7 633 Hz
Note: The default Codabar tone frequency is 1071 Hertz ( Hex 4 ).
Codabar Tone
This parameter permits you to enable or disable the Codabar tone. Scan Hex 0 to
disable the tone (default) or Hex 1 to enable it. If disabled, the Codabar tone is under
control of the UPC tone control (general good read tone).