from
The Free On-line Dictionary of Computing (8 July 2008)
Baudot code
Baudot
<communications> (For etymology, see {baud}) A {character set}
predating {EBCDIC} and used originally and primarily on {paper
tape}. Use of Baudot reportedly survives in {TDDs} and some
HAM radio applications.
In Baudot, characters are expressed using five {bits}. Baudot
uses two code sub-sets, the "letter set" (LTRS), and the
"figure set" (FIGS). The FIGS character (11011) signals that
the following code is to be interpreted as being in the FIGS
set, until this is reset by the LTRS (11111) character.
binary hex LTRS FIGS
--------------------------
00011 03 A -
11001 19 B ?
01110 0E C :
01001 09 D $
00001 01 E 3
01101 0D F !
11010 1A G &
10100 14 H #
00110 06 I 8
01011 0B J BELL
01111 0F K (
10010 12 L )
11100 1C M .
01100 0C N ,
11000 18 O 9
10110 16 P 0
10111 17 Q 1
01010 0A R 4
00101 05 S '
10000 10 T 5
00111 07 U 7
11110 1E V ;
10011 13 W 2
11101 1D X /
10101 15 Y 6
10001 11 Z "
01000 08 CR CR
00010 02 LF LF
00100 04 SP SP
11111 1F LTRS LTRS
11011 1B FIGS FIGS
00000 00 [..unused..]
Where CR is {carriage return}, LF is {linefeed}, BELL is the
{bell}, SP is space, and STOP is the stop character.
Note: these bit values are often shown in inverse order,
depending (presumably) which side of the {paper tape} you were
looking at.
Local implementations of Baudot may differ in the use of #,
STOP, BELL, and '.
(1997-01-30)