Some commands described in the Cisco IOS documentation set, such as the
escape-character line configuration command,
require that you enter the decimal representation of an ASCII character. Other
commands occasionally make use of hexadecimal (hex) representations.
ASCII Character Set and Hexadecimal Values provides character code translations from the decimal numbers to
their hexadecimal and ASCII equivalents. It also provides the keyword entry for
each ASCII character. For example, the ASCII carriage return (CR) is decimal
13. Entering Ctrl-M at your terminal generates decimal 13, which is interpreted
as a CR.
 Note |
This document is a reference for only the standard ASCII character
set. Extended ASCII character sets are not generally recommended for use in
Cisco IOS commands. Extended ASCII character set references are widely
available on the internet.
|
Table 1 ASCII Translation Table
Numeric Values
|
ASCII Character
|
Meaning
|
Keyboard Entry
|
Decimal
|
Hex
|
0
|
00
|
NUL
|
Null
|
Ctrl-@
|
1
|
01
|
SOH
|
Start of heading
|
Ctrl-A
|
2
|
02
|
STX
|
Start of text
|
Ctrl-B
|
3
|
03
|
ETX
|
Break/end of text
|
Ctrl-C
|
4
|
04
|
EOT
|
End of transmission
|
Ctrl-D
|
5
|
05
|
ENQ
|
Enquiry
|
Ctrl-E
|
6
|
06
|
ACK
|
Positive acknowledgment
|
Ctrl-F
|
7
|
07
|
BEL
|
Bell
|
Ctrl-G
|
8
|
08
|
BS
|
Backspace
|
Ctrl-H
|
9
|
09
|
HT
|
Horizontal tab
|
Ctrl-I
|
10
|
0A
|
LF
|
Line feed
|
Ctrl-J
|
11
|
0B
|
VT
|
Vertical tab
|
Ctrl-K
|
12
|
0C
|
FF
|
Form feed
|
Ctrl-L
|
13
|
0D
|
CR
|
Carriage return (in the CLI, equivalent to the Enter or Return
key)
|
Ctrl-M
|
14
|
0E
|
SO
|
Shift out
|
Ctrl-N
|
15
|
0F
|
SI
|
Shift in/XON (resume output)
|
Ctrl-O
|
16
|
10
|
DLE
|
Data link escape
|
Ctrl-P
|
17
|
11
|
DC1
|
Device control character 1
|
Ctrl-Q
|
18
|
12
|
DC2
|
Device control character 2
|
Ctrl-R
|
19
|
13
|
DC3
|
Device control character 3
|
Ctrl-S
|
20
|
14
|
DC4
|
Device control character 4
|
Ctrl-T
|
21
|
15
|
NAK
|
Negative acknowledgment
|
Ctrl-U
|
22
|
16
|
SYN
|
Synchronous idle
|
Ctrl-V
|
23
|
17
|
ETB
|
End of transmission block
|
Ctrl-W
|
24
|
18
|
CAN
|
Cancel
|
Ctrl-X
|
25
|
19
|
EM
|
End of medium
|
Ctrl-Y
|
26
|
1A
|
SUB
|
Substitute/end of file
|
Ctrl-Z
|
27
|
1B
|
ESC
|
Escape
|
Ctrl-[
|
28
|
1C
|
FS
|
File separator
|
Ctrl-\
|
29
|
1D
|
GS
|
Group separator
|
Ctrl-]
|
30
|
1E
|
RS
|
Record separator
|
Ctrl-^
|
31
|
1F
|
US
|
Unit separator
|
Ctrl-_
|
32
|
20
|
SP
|
Space
|
Space
|
33
|
21
|
!
|
!
|
!
|
34
|
22
|
"
|
"
|
"
|
35
|
23
|
#
|
#
|
#
|
36
|
24
|
$
|
$
|
$
|
37
|
25
|
%
|
%
|
%
|
38
|
26
|
&
|
&
|
&
|
39
|
27
|
’
|
’
|
’
|
40
|
28
|
(
|
(
|
(
|
41
|
29
|
)
|
)
|
)
|
42
|
2A
|
*
|
*
|
*
|
43
|
2B
|
+
|
+
|
+
|
44
|
2C
|
,
|
,
|
,
|
45
|
2D
|
-
|
-
|
-
|
46
|
2E
|
.
|
.
|
.
|
47
|
2F
|
/
|
/
|
/
|
48
|
30
|
0
|
Zero
|
0
|
49
|
31
|
1
|
One
|
1
|
50
|
32
|
2
|
Two
|
2
|
51
|
33
|
3
|
Three
|
3
|
52
|
34
|
4
|
Four
|
4
|
53
|
35
|
5
|
Five
|
5
|
54
|
36
|
6
|
Six
|
6
|
55
|
37
|
7
|
Seven
|
7
|
56
|
38
|
8
|
Eight
|
8
|
57
|
39
|
9
|
Nine
|
9
|
58
|
3A
|
:
|
:
|
:
|
59
|
3B
|
;
|
;
|
;
|
60
|
3C
|
<
|
<
|
<
|
61
|
3D
|
=
|
=
|
=
|
62
|
3E
|
>
|
>
|
>
|
63
|
3F
|
?
|
?
|
?
|
64
|
40
|
@
|
@
|
@
|
65
|
41
|
A
|
A
|
A
|
66
|
42
|
B
|
B
|
B
|
67
|
43
|
C
|
C
|
C
|
68
|
44
|
D
|
D
|
D
|
69
|
45
|
E
|
E
|
E
|
70
|
46
|
F
|
F
|
F
|
71
|
47
|
G
|
G
|
G
|
72
|
48
|
H
|
H
|
H
|
73
|
49
|
I
|
I
|
I
|
74
|
4A
|
J
|
J
|
J
|
75
|
4B
|
K
|
K
|
K
|
76
|
4C
|
L
|
L
|
L
|
77
|
4D
|
M
|
M
|
M
|
78
|
4E
|
N
|
N
|
N
|
79
|
4F
|
O
|
O
|
O
|
80
|
50
|
P
|
P
|
P
|
81
|
51
|
Q
|
Q
|
Q
|
82
|
52
|
R
|
R
|
R
|
83
|
53
|
S
|
S
|
S
|
84
|
54
|
T
|
T
|
T
|
85
|
55
|
U
|
U
|
U
|
86
|
56
|
V
|
V
|
V
|
87
|
57
|
W
|
W
|
W
|
88
|
58
|
X
|
X
|
X
|
89
|
59
|
Y
|
Y
|
Y
|
90
|
5A
|
Z
|
Z
|
Z
|
91
|
5B
|
[
|
[
|
[
|
92
|
5C
|
\
|
\
|
\
|
93
|
5D
|
]
|
]
|
]
|
94
|
5E
|
^
|
^
|
^
|
95
|
5F
|
_
|
_
|
_
|
96
|
60
|
`
|
`
|
`
|
97
|
61
|
a
|
a
|
a
|
98
|
62
|
b
|
b
|
b
|
99
|
63
|
c
|
c
|
c
|
100
|
64
|
d
|
d
|
d
|
101
|
65
|
e
|
e
|
e
|
102
|
66
|
f
|
f
|
f
|
103
|
67
|
g
|
g
|
g
|
104
|
68
|
h
|
h
|
h
|
105
|
69
|
i
|
i
|
i
|
106
|
6A
|
j
|
j
|
j
|
107
|
6B
|
k
|
k
|
k
|
108
|
6C
|
l
|
l
|
l
|
109
|
6D
|
m
|
m
|
m
|
110
|
6E
|
n
|
n
|
n
|
111
|
6F
|
o
|
o
|
o
|
112
|
70
|
p
|
p
|
p
|
113
|
71
|
q
|
q
|
q
|
114
|
72
|
r
|
r
|
r
|
115
|
73
|
s
|
s
|
s
|
116
|
74
|
t
|
t
|
t
|
117
|
75
|
u
|
u
|
u
|
118
|
76
|
v
|
v
|
v
|
119
|
77
|
w
|
w
|
w
|
120
|
78
|
x
|
x
|
x
|
121
|
79
|
y
|
y
|
y
|
122
|
7A
|
z
|
z
|
z
|
123
|
7B
|
{
|
{
|
{
|
124
|
7C
|
|
|
|
|
|
|
125
|
7D
|
}
|
}
|
}
|
126
|
7E
|
~
|
Tilde
|
~
|
127
|
7F
|
DEL
|
Delete
|
Del
|