Wasp Bar Code WLS 8400 FZ 用户手册
Symbologies
8-17
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.
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>)
System Character & Country Code
(< COUNTRY CODE> <SYSTEM CHARACTER> <DATA>)