| Turnaround Characters (HDX B only) | Disconnect Characters | ||
|---|---|---|---|
| Name | Mnemonic | Name | Mnemonic |
| Form feed | FF | End of transmission | EOT |
| End of text | ETX | End of transmission | EOT |
| End of transmission | EOT | Data link escape - end of transmission | DLE EOT |
| Carriage return | CR | End of transmission | EOT |
| Device control 3 | DC3 | End of transmission | EOT |