Code 39 Full Ascii; Full Ascii Code - Symbol LT 1806 Product Reference Manual

LT 1806 Product Reference Guide: Programming the LT 1806

Full ASCII Code 39

The LT 1806 can be programmed to interpret Code 39 in one of two ways: Code
39 Full ASCII and standard Code 39. The unit can not autodiscriminate
between Code 39 and Code 39 Full ASCII.
The default is standard Code 39. To enable Code 39 Full ASCII, follow the
instructions outlined in Code Types on page 5-13 for selecting code types.

Code 39 Full ASCII

The ASCII character set assigns a code to letters, punctuation marks, numerals,
and most control keystrokes on the keyboard.
The first 32 codes are non-printable and are assigned to keyboard control
characters such as BACKSPACE and RETURN. The other 96 are called
printable codes because all but SPACE and DELETE produce visible
characters.
Code 39 Full ASCII interprets the bar code control character ( $ + % /)
preceding a Code 39 symbol and assigns an ASCII character value. For
example, when Code 39 Full ASCII is enabled and a +B is scanned, it is
interpreted as b, %J as ?, and $H emulates the keystroke BACKSPACE.
Scanning ABC$M outputs the keystroke equivalent of ABC ENTER.
Note that the keystroke depends on the keyboard in use. For example, $D is
interpreted as END (IBM PC /XT, /AT, PS/2), or FLDADVANCE (TELEX 88).
See Table 4-2 for keyboard output produced by embedded codes.
Standard Code 39
Code 39 transmits characters exactly as they are printed. For example +A is
transmitted as +A, and ABC$M as ABC$M.
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