ITU T.61

T.61 is an ITU-T recommendation for a Teletex character set. T.61 predated Unicode, and was the primary character set in ASN.1 used in early versions of X.500 and X.509 for encoding strings containing characters used in Western European languages. While T.61 continues to be supported in modern versions of X.500 and X.509, it has been deprecated in favor of Unicode.

While ASN.1 does see wide use and the T.61 character set is used on some standards using ASN.1 (for example in RSA Security's PKCS #9), the 1988-11 version of the T.61 standard itself was superseded by a never-published 1993-03 version; the 1993-03 version was withdrawn by the ITU-T.^[1] The 1988-11 version is still available.^[1]

Legend:

Alphabetic   Control character   Numeric digit   Punctuation

Extended punctuation   Graphic character   International   Undefined

T.61-8bit^[2]

	_0	_1	_2	_3	_4	_5	_6	_7	_8	_9	_A	_B	_C	_D	_E	_F
0_	NUL 0000 0	SOH 0001 1	STX 0002 2	ETX 0003 3	EOT 0004 4	ENQ 0005 5	ACK 0006 6	BEL 0007 7	BS 0008 8	HT 0009 9	LF 000A 10	VT 000B 11	FF 000C 12	CR 000D 13	SO 000E 14	SI 000F 15
1_	DLE 0010 16	DC1 0011 17	DC2 0012 18	DC3 0013 19	DC4 0014 20	NAK 0015 21	SYN 0016 22	ETB 0017 23	CAN 0018 24	EM 0019 25	SUB 001A 26	ESC 001B 27	FS 001C 28	GS 001D 29	RS 001E 30	US 001F 31
2_	0020 32	! 0021 33	" 0022 34	35	36	% 0025 37	& 0026 38	' 0027 39	( 0028 40	) 0029 41	* 002A 42	+ 002B 43	, 002C 44	- 002D 45	. 002E 46	/ 002F 47
3_	0 0030 48	1 0031 49	2 0032 50	3 0033 51	4 0034 52	5 0035 53	6 0036 54	7 0037 55	8 0038 56	9 0039 57	: 003A 58	; 003B 59	< 003C 60	= 003D 61	> 003E 62	? 003F 63
4_	@ 0040 64	A 0041 65	B 0042 66	C 0043 67	D 0044 68	E 0045 69	F 0046 70	G 0047 71	H 0048 72	I 0049 73	J 004A 74	K 004B 75	L 004C 76	M 004D 77	N 004E 78	O 004F 79
5_	P 0050 80	Q 0051 81	R 0052 82	S 0053 83	T 0054 84	U 0055 85	V 0056 86	W 0057 87	X 0058 88	Y 0059 89	Z 005A 90	[ 005B 91	92	] 005D 93	94	_ 005F 95
6_	96	a 0061 97	b 0062 98	c 0063 99	d 0064 100	e 0065 101	f 0066 102	g 0067 103	h 0068 104	i 0069 105	j 006A 106	k 006B 107	l 006C 108	m 006D 109	n 006E 110	o 006F 111
7_	p 0070 112	q 0071 113	r 0072 114	s 0073 115	t 0074 116	u 0075 117	v 0076 118	w 0077 119	x 0078 120	y 0079 121	z 007A 122	123	| 007C 124	125	126	DEL 007F 127
8_	PAD 0080 128	HOP 0081 129	BPH 0082 130	NBH 0083 131	IND 0084 132	NEL 0085 133	SSA 0086 134	ESA 0087 135	HTS 0088 136	HTJ 0089 137	VTS 008A 138	PLD 008B 139	PLU 008C 140	RI 008D 141	SS2 008E 142	SS3 008F 143
9_	DCS 0090 144	PU1 0091 145	PU2 0092 146	STS 0093 147	CCH 0094 148	MW 0095 149	SPA 0096 150	EPA 0097 151	SOS 0098 152	SGCI 0099 153	SCI 009A 154	CSI 009B 155	ST 009C 156	OSC 009D 157	PM 009E 158	APC 009F 159
A_	00A0 160	¡ 00A1 161	¢ 00A2 162	£ 00A3 163	$ 0024 164	¥ 00A5 165	# 0023 166	§ 00A7 167	¤ 00A4 168	169	170	« 00AB 171	172	173	174	175
B_	° 00B0 176	± 00B1 177	² 00B2 178	³ 00B3 179	× 00D7 180	µ 00B5 181	¶ 00B6 182	· 00B7 183	÷ 00F7 184	185	186	» 00BB 187	¼ 00BC 188	½ 00BD 189	¾ 00BE 190	¿ 00BF 191
C_	192	̀ 0300 193	́ 0301 194	̂ 0302 195	̃ 0303 196	̄ 0304 197	̆ 0306 198	̇ 0307 199	̈ 0308 200	201	̊ 030A 202	̧ 0327 203	̲ 0332 204	̋ 030B 205	̨ 0328 206	̌ 030C 207
D_	208	209	210	211	212	213	214	215	216	217	218	219	220	221	222	223
E_	Ω 2126 224	Æ 00C6 225	Ð 00D0 226	ª 00AA 227	Ħ 0126 228	229	IJ 0132 230	Ŀ 013F 231	Ł 0141 232	Ø 00D8 233	Œ 0152 234	º 00BA 235	Þ 00DE 236	Ŧ 0166 237	Ŋ 014A 238	ʼn 0149 239
F_	ĸ 0138 240	æ 00E6 241	đ 0111 242	ð 00F0 243	ħ 0127 244	ı 0131 245	ij 0133 246	ŀ 0140 247	ł 0142 248	ø 00F8 249	œ 0153 250	ß 00DF 251	þ 00FE 252	ŧ 0167 253	ŋ 014B 254	255
	_0	_1	_2	_3	_4	_5	_6	_7	_8	_9	_A	_B	_C	_D	_E	_F

References

1. "Recommendation T.61". ITU-T.
2. RFC 1345

External links

• ITU-T Recommendation T.61 at ITU-T