Symbol LS7708 - UPC-A Preamble

Symbologies 13 - 23
UPC-A Preamble
Preamble characters are part of the UPC symbol consisting of Country Code and System Character. Three options are given for
transmitting UPC-A preamble to the host device: transmit System Character only, transmit System Character and Country Code
(“0” for USA), and no preamble transmitted. Select the appropriate option to match the host system.
No Preamble
(<DATA>)
*System Character
(<SYSTEM CHARACTER> <DATA>)