Symbol Technologies DS 3408 - Manual (Page 174)

DS 3408 Product Reference Guide 13-16
Transmit UPC-E1 Check Digit
Parameter # 2Ah
The check digit is the last character of the symbol used to verify the integrity of the data. Scan the appropriate bar code below to
transmit the bar code data with or without the UPC-E1 check digit. It is always verified to guarantee the integrity of the data.
UPC-A Preamble
Parameter # 22h
Preamble characters are part of the UPC symbol, and include 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), and transmit no preamble. Select the appropriate option to match the host system.
*
Transmit UPC-E1 Check Digit
(01h)
Do Not Transmit UPC-E1 Check Digit
(00h)
No Preamble (<DATA>)
(00h)
*
System Character (<SYSTEM CHARACTER> <DATA>)
(01h)
System Character & Country Code
(< COUNTRY CODE> <SYSTEM CHARACTER> <DATA>)
(02h)