&D setting | response to DTR-OFF transition |
0 | Modem ignores DTR |
1 | Modem escapes from ON-LINE state to ON-LINE COMMAND state. |
2 | Modem exits ON-LINE state and goes On-Hook (IDLE). |
3 | Modem resets (not in TIA-602, but common) See Annex A.4 above for further information. |