ITU-T recommendation T.50 specifies the International Reference Alphabet (IRA), formerly International Alphabet No. 5 (IA5), a character encoding. ASCII is the U.S. variant of that character set.
The original version from November 1988 corresponds to ISO 646. The current version is from September 1992.
Undefined (showing the ASCII character that is at that location)
A character that, in some regions, could be combined with a previous character as a diacritic using the backspace character, which may affect glyph choice.
^ abcdSalste, Tuomas (January 2016). "7-bit character sets: Revisions of ASCII". Aivosto Oy. urn:nbn:fi-fe201201011004. from the original on 2016-06-13. Retrieved 2016-06-13.
^International Reference Alphabet (IRA) - Information Technology - 7-bit Coded Character Set For Information Interchange - Recommendation T.50, International Telecommunication Union (ITU) - The International Telegraph and Telephone Consultative Committee (CCITT) - Terminal Equipment and Protocols for Telematic Services, 1993-04-16 [1992-09-18], E 3177, from the original on 2014-12-19, retrieved 2017-03-18
^. Cisco.com. Archived from the original on 2011-09-07. Retrieved 2012-10-03.
External linksEdit
Official ITU-T T.50 page
Tech Info - Character Codes (IA5 and ISO 646)
October 18, 2023
standard, recommendation, specifies, international, reference, alphabet, formerly, international, alphabet, character, encoding, ascii, variant, that, character, original, version, from, november, 1988, corresponds, current, version, from, september, 1992, con. ITU T recommendation T 50 specifies the International Reference Alphabet IRA formerly International Alphabet No 5 IA5 a character encoding ASCII is the U S variant of that character set The original version from November 1988 corresponds to ISO 646 The current version is from September 1992 Contents 1 History 2 Use 3 Character set 4 Standardisation 5 See also 6 References 7 External linksHistory EditAt the beginning was the International Telegraph Alphabet No 2 ITA2 a five bits code IA5 is an improvement based on seven bits bytes Recommendation V 3 IA5 1968 Initial version superseded 1 2 Recommendation V 3 IA5 1972 Superseded 1 2 Recommendation V 3 IA5 1976 10 Superseded Recommendation V 3 IA5 1980 11 Superseded Recommendation T 50 IA5 1984 10 Superseded 2 Recommendation T 50 IA5 1988 11 25 Superseded 1 2 Recommendation T 50 IRA 1992 09 18 In force 1 3 Use EditThis standard is referenced by other standards such as RFC 3966 It is also used by some analog modems such as Cisco ones 4 This standard is referenced by other standards such as RFC 3939 Calling Line Identification for Voice Mail Messages Character set EditThe following table shows the IA5 character set Each character is shown with the hex code of its Unicode equivalent IA5 character set0 1 2 3 4 5 6 7 8 9 A B C D E F0x NUL SOH STX ETX EOT ENQ ACK BEL BS HT LF VT FF CR SO SI 1x DLE DC1 DC2 DC3 DC4 NAK SYN ETB CAN EM SUB ESC FS GS RS US 2x SP amp 3x 0 1 2 3 4 5 6 7 8 9 lt gt 4x A B C D E F G H I J K L M N O5x P Q R S T U V W X Y Z 6x a b c d e f g h i j k l m n o7x p q r s t u v w x y z DEL Undefined showing the ASCII character that is at that location A character that in some regions could be combined with a previous character as a diacritic using the backspace character which may affect glyph choice Standardisation EditIdentical standard ISO IEC 646 1991 Twinned See also EditITU T 51References Edit a b c d Salste Tuomas January 2016 7 bit character sets Revisions of ASCII Aivosto Oy urn nbn fi fe201201011004 Archived from the original on 2016 06 13 Retrieved 2016 06 13 a b c d International Alphabet No 5 Recommendation T 50 International Telecommunication Union ITU The International Telegraph and Telephone Consultative Committee CCITT Series T Terminal Equipment and Protocols for Telematic Services 1993 04 16 1988 11 25 E 33116 archived from the original on 2017 03 19 retrieved 2017 03 18 International Reference Alphabet IRA Information Technology 7 bit Coded Character Set For Information Interchange Recommendation T 50 International Telecommunication Union ITU The International Telegraph and Telephone Consultative Committee CCITT Terminal Equipment and Protocols for Telematic Services 1993 04 16 1992 09 18 E 3177 archived from the original on 2014 12 19 retrieved 2017 03 18 AT Command Set and Register Summary for NM 8AM V2 NM 16AM V2 WIC 1AM and WIC 2AM Analog Modem WAN Interface Cards 2 Syntax and Procedures Cisco 3600 Series Multiservice Platforms Cisco Systems Cisco com Archived from the original on 2011 09 07 Retrieved 2012 10 03 External links EditOfficial ITU T T 50 page Tech Info Character Codes IA5 and ISO 646 Retrieved from https en wikipedia org w index php title T 50 standard amp oldid 1164020970, wikipedia, wiki, book, books, library,
