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Ultra Electronics Ltd
Pronto Maintenance Manual
- 62 -
SECTION 14.4
ASCII CHARACTER SET SUPPORTED BY THE PRONTO
SECTION 14.5
ISO STANDARDS
Track 1
Recorded information can be of alphanumeric type (ASCII Char 32-95).
Bit density of the recorded information shall be 210 Bits per inch.
Number of data bits making up each character is 6 plus 1 Parity Check Bit.
The total number of data characters, control characters and Longitudinal Redundancy Check (LRC) characters
together must not exceed 79, including ‘Start’ and ‘End’ Sentinels.
Track 2
Recorded information can only be numeric type. (ASCII Char 48-63).
Bit density of the recorded information shall be 75 Bits per inch.
Number of data bits making up each character is 4 plus 1 Parity Check Bit.
The total number of data characters, control characters and LRC characters together must not exceed 40,
including ‘Start’ and ‘End’ Sentinels.
Track 3
Recorded information can only be numeric type. (ASCII Char 48-63).
Bit density of the recorded information shall be 210 Bits per inch.
Number of data bits making up each character is 4 plus 1 Parity Check Bit.
The total number of data characters, control characters and LRC characters together must not exceed 107,
including “Start” and “End” Sentinels.
ASCII CHAR.
DETAIL
ASCII CHAR.
DETAIL
ASCII CHAR.
DETAIL
32
space
53
5
74
J
33
!
54
6
75
K
34
“
55
7
76
L
35
#
56
8
77
M
36
$
57
9
78
N
37
%
58
:
79
O
38
&
59
;
80
P
39
‘
60
<
81
Q
40
(
61
=
82
R
41
)
62
>
83
S
42
*
63
?
84
T
43
+
64
@
85
U
44
,
65
A
86
V
45
-
66
B
87
W
46
.
67
C
88
X
47
/
68
D
89
Y
48
0
69
E
90
Z
49
1
70
F
91
[
50
2
71
G
92
\
51
3
72
H
93
]
52
4
73
I
94
^
95
_