Omnitron Systems Technology RS-232 - Manual (Page 29)

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Enable/Disable UPC-E
UPC-E is a special version of the UPC-A specification. It is a fixed format
symbology and there are no variations allowed. If disabled, the data from the
symbology will be disregarded.
SELECTION CODE: G1
UPC-E Enable C
UPC-E Disable D
Send Number System Digit
The first encoded digit in the UPC-A symbol is the number system digit. If
enabled, the first digit of the transmitted data stream is the number system
digit followed by the manufacturer’s number. If disabled, then the first digit
transmitted is part of the manufacturer’s number.
SELECTION CODE: G1
Send Number Digit E
Do Not Send Number Digit F
Send Check Digit
The check digit is mandatory in the UPC symbology. If enabled, the reader
will send the decoded check digit as the last character in the data stream trans-
mitted. If not, the check character will be suppressed before transmission.
SELECTION CODE: G1
Send Check Digit G
Do Not Send Check Digit H
UPC-E Expansion
The UPC-E symbology uses a special algorithm to suppress zeros in the
encoded data. The suppressed information can be restored by either the Omni
reader or the host system. If enabled, the reader will restore the data to its
original format. If the host system is set up to do the expansion, then this op-
tion should not be used.
SELECTION CODE: G1
Expand UPC-E I
Do Not Expand UPC-E J