Appendix B
ASCII characters
| ASCII Code Number | Symbol | Descriptor |
|---|---|---|
| 0 | NULL | (Null character) |
| 1 | SOH | (Start of Header) |
| 2 | STX | (Start of Text) |
| 3 | ETX | (End of Text) |
| 4 | EOT | (End of Transmission) |
| 5 | ENQ | (Enquiry) |
| 6 | ACK | (Acknowledgement) |
| 7 | BEL | (Bell) |
| 8 | BS | (Backspace) |
| 9 | HT | (Horizontal Tab) |
| 10 | LF | (Line feed) |
| 11 | VT | (Vertical Tab) |
| 12 | FF | (Form feed) |
| 13 | CR | (Carriage return) |
| 14 | SO | (Shift Out) |
| 15 | SI | (Shift In) |
| 16 | DLE | (Data link escape) |
| 17 | DC1 | (Device control 1) |
| 18 | DC2 | (Device control 2) |
| 19 | DC3 | (Device control 3) |
| 20 | DC4 | (Device control 4) |
| 21 | NAK | (Negative acknowledgement) |
| 22 | SYN | (Synchronous idle) |
| 23 | ETB | (End of transmission block) |
| 24 | CAN | (Cancel) |
| 25 | EM | (End of medium) |
| 26 | SUB | (Substitute) |
| 27 | ESC | (Escape) |
| 28 | FS | (File separator) |
| 29 | GS | (Group separator) |
| 30 | RS | (Record separator) |
| 31 | US | (Unit separator) |
| 32 | (Space) | |
| 33 | ! | (Exclamation mark) |
| 34 | " | (Quotation mark; quotes) |
| 35 | # | (Number sign) ... |
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