AML M5900 Portable Batch Data Terminal - Manual (Page 33)

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ON Enable the Mod 43 Check Digit for Code 39. When this option is enabled,
only Code 39 labels that contain a valid check digit will be read.
OFF* Disable the Mod 43 Check Digit. Check digit verification will not be
performed.
Send Chk Digit
ON Transmit the Mod 43 Check Digit with the bar code data. Requires the
“Mod 43 Check Digit” option above to be set on.
OFF* Do not transmit the Mod 43 Check Digit.
Concatenate Mode
ON Enable Concatenate Mode. The concatenate mode allows the M7100
handheld terminal to accumulate multiple bar codes in its buffer and then
sends them to the computer just like they were a single bar code. When a
Code 39 label containing a leading space is read, the M7100 emits two
short beeps and buffers the data without transmission. This process
continues until a Code 39 label without
a leading space is read or 128
characters are buffered. A Code 39 bar code label that only contains a
single or multiple dashes (minus sign) will clear the buffer.
OFF* Disable Concatenate Mode.
UPC
UPC-E:
Convert to UPC-A
ON Convert all UPC-E labels to their UPC-A equivalents before transmission.
After conversion, the reader will follow the UPC-A programming options.
OFF* No conversions will be performed.
Send System
ON* Transmit the UPC-E Number System character.