RFC 20:ASCII format for Network Interchange
RFC-Ref

ESC


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... |---|---|---|---|------|-----|-----|-----|-----|-----|-----|-----|-----| | 1 | 0 | 1 | 1 | 11 | VT | ESC | + | ; | K | [ | k | { | |---|---|---|---|------|-----|-----|-----|-----|-----|-----|-----|-----| | 1 | 1 | 0 | 0 | 12 | FF ...


... VT Vertical Tabulation (FE) ESC Escape FF ...


... SUB (Substitute): A character that may be substituted for a character which is determined to be invalid or in error. ESC (Escape): A control character intended to provide code extension (supplementary characters) in general information ...



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