For the e789 command to function properly, the DEC VT220 must be configured as:
The following table contains the default key functions on the DEC VT220 terminal keyboard. See "Special Keys" for a description of these functions.
Note: This terminal cannot be used in a DBCS environment.
| Default Key Functions on DEC VT220 Keyboards | |||
| Function | Press | Function | Press |
| TAB | Tab | PF14 | F14 |
| BTAB | N/A | PF15 | Help |
| ENTER | Keypad 0 | PF16 | Do |
| SYSREQ | Keypad 1 | PF17 | F17 |
| CLEAR | Keypad . (period) | PF18 | F18 |
| BACKSPACE | Backspace | PF19 | F19 |
| CHGDIS | N/A | PF20 | F20 |
| INSERT | Find | PF21 | Keypad 6 |
| DELETE | Select | PF22 | Keypad 7 |
| HOME | Insert Here | PF23 | Keypad 8 |
| PA1 | Remove | PF24 | Keypad 9 |
| PA2 | Next Screen | Keypad - (minus) | |
| PA3 | N/A | SAVES | Keypad 4 |
| SPACEOF | Prev Screen | REPLS | Keypad , (comma) |
| DOWN | Down Arrow | BTABW | Ctrl-A |
| DDOWN | N/A | EOF | Ctrl-B |
| RIGHT | Right Arrow | SHELL | Ctrl-C |
| RRIGHT | N/A | QUIT | Ctrl-D |
| LEFT | Left Arrow | ERASE | Ctrl-E |
| LLEFT | N/A | FTABW | Ctrl-F |
| UP | Up Arrow | ENDF | Ctrl-G |
| UUP | N/A | BACKF | Ctrl-K |
| NEWLINE | Return | LENDF | Ctrl-L |
| PF1 | PF1 | NEWLINE | Ctrl-M |
| PF2 | PF2 | FMARK | Ctrl-N |
| PF3 | PF3 | NEXT | Ctrl-O |
| PF4 | PF4 | POREST | Ctrl-P |
| PF5 | Keypad 5 | RESET | Ctrl-R |
| PF6 | F6 | REFRESH | Ctrl-T |
| PF7 | F7 | DUP | Ctrl-U |
| PF8 | F8 | HCONUTIL | Ctrl-V |
| PF9 | F9 | DELWORD | Ctrl-W |
| PF10 | F10 | DOIA | Ctrl-X |
| PF11 | F11 | CLICK | Ctrl-Y |
| PF12 | F12 | JOBCTRL | Ctrl-Z |
| PF13 | F13 | ATTN | Ctrl-] (right bracket) |
| CURSEL | Ctrl-\ (backslash) | ||