ISO 2047

ISO 2047 (Information processing – Graphical representations for the control characters of the 7-bit coded character set) is a withdrawn proposal for graphical representation of the control characters for debugging purposes, such as may be found in the character generator of a computer terminal;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. In addition, RFC 1345 "Character Mnemonics & Character Sets" is cited as the ISO 2047 two-letter abbreviation of the control character. ISO 2047, ECMA-17[1] in Europe, GB/T 3911-1983 in China, that corresponds to KS X 1010[2] 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.

The ISO/IEC 646 three-letter abbreviation (such as "ESC"), or caret notation (such as "^[") are used much more often than this standard.[citation needed]

Character Table

Name Symbol 2-letter
00 NUL Null U+2395 NU
01 TC₁, SOH Start of Heading U+2308 SH
02 TC₂, STX Start of Text U+22A5 SX
03 TC₃, ETX End of Text U+230B EX
04 TC₄, EOT End of Transmission U+2301[3] ET
05 TC₅, ENQ Enquiry U+22A0 EQ
06 TC₆, ACK Acknowledge U+2713 AK
07 BEL Bell U+237E[3] BL
08 FE₀, BS Backspace U+232B[3] BS
09 FE₁, HT Horizontal Tabulation U+2AAB HT
0A FE₂, LF Line Feed U+2261 LF
0B FE₃, VT Vertical Tabulation U+2A5B VT
0C FE₄, FF Form Feed U+21A1 FF
0D FE₅, CR Carriage Return U+2AAA CR
0E SO Shift Out U+2297 SO
0F SI Shift In U+2299 SI
10 TC₇, DLE Data Link Escape U+229F DL
11 DC₁ Device Control 1 U+25F7 D1
12 DC₂ Device Control 2 U+25F6 D2
13 DC₃ Device Control 3 U+25F5 D3
14 DC₄ Device Control 4 U+25F4 D4
15 TC₈, NAK Negative Acknowledge U+237B[3] NK
16 TC₉, SYN Synchronization U+238D SY
17 TC₁₀, ETB End of Transmission Block U+22A3 EB
18 CAN Cancel U+29D6 CN
19 EM End of Medium U+237F[3] EM
1A SUB Substitute Character U+2426[4] SB
1B ESC Escape U+2296 EC
1C IS₄, FS File Separator U+25F0 FS
1D IS₃, GS Group Separator U+25F1 GS
1E IS₂, RS Record Separator U+25F2 RS
1F IS₁ US Unit Separator U+25F3 US
20 SP Space U+25B3 SP
7F DEL Delete U+2425[4] DT


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