Symbologies 13 - 15
UPC-A Preamble
Preamble characters are part of the UPC symbol consisting of Country Code and System Character. There are
three options for transmitting a UPC-A preamble to the host device:
•
Transmit System Character only.
•
Transmit System Character and Country Code (“0” for USA).
•
Transmit no preamble.
Select the appropriate option to match the host system.
No Preamble
(<DATA>)
*System Character
(<SYSTEM CHARACTER> <DATA>)
System Character & Country Code
(< COUNTRY CODE> <SYSTEM CHARACTER>
<DATA>)