ISO 2047 (Information processing – Graphical representations for the control characters of the 7-bit coded character set) is a standard for graphical representation of the

control characters In computing and telecommunication, a control character or non-printing character (NPC) is a code point (a number) in a character set, that does not represent a written symbol. They are used as in-band signaling to cause effects other than th ...

for debugging purposes, such as may be found in the character generator of a computer terminal; it also establishes a two-letter abbreviation of each control character. It started out as ANSI X3.32-1973 (American National Standard – Graphic Representation of the Control Characters of American National Standard Code for Information Interchange in 1973 and became an ISO standard in 1975. In addition, "Character Mnemonics & Character Sets" is cited as the ISO 2047 two-letter abbreviation of the control character. ISO 2047, ECMA-17ECMA-17, Graphic Representation of the Control Characters of the ECMA 7-Bit Coded Character Set for Information Interchange
(withdrawn) in Europe, GB/T 3911-1983 in China, that corresponds to KS X 1010 in Korea (formerly KS C 5713) has been established as a standard. It was enacted "graphical representation of information exchange capabilities for character" JIS X 0209:1976 (former JIS C 6227) in Japan, and was abolished on January 20, 2010. While the

ISO/IEC 646 ISO/IEC 646 is a set of ISO/IEC standards, described as ''Information technology — ISO 7-bit coded character set for information interchange'' and developed in cooperation with ASCII at least since 1964. Since its first edition in ...

three-letter abbreviation (such as "ESC"), or

caret notation Caret notation is a notation for control characters in ASCII. The notation assigns to control-code 1, sequentially through the alphabet to assigned to control-code 26 (0x1A). For the control-codes outside of the range 1–26, the ...

(such as "^[") are still in use, the graphical symbols of ISO 2047 are considered outdated and rare.Agim Çami
Control characters in ASCII and Unicode
Agim Çami – Computer Architecture web site, 1 July 2019

Character table

References

External links

ECMA-17
(Ecma International equivalent)
BN-76/3101-05
(Polish equivalent) {{ISO standards #02047