001-0003-832 Rev3
Page 41 of 59
External Serial Port Configuration
Baud Rate
:
Sets the baud rate of the serial port. Settings may range from 300 to 115,200 bits per second. The
default baud rate is 115,200 bps.
Inter Character Timeout:
Sets the interval between packets being sent, no matter the size, from 1 to 65,535 ms.
DTR:
Defines the Data Terminal Ready behavior.
AT&D0:
Ignore DTR.
AT&D1:
If in the Online Data State, upon an on-to-off transition of DTR, the modem enters
Online Command State and issues an OK result code; the call remains connected. Otherwise,
ignore DTR.
AT&D2:
If in the Online Data State or Online Command State upon an on-to-off transition of
DTR, the modem performs an orderly clear-down of the call and returns to the command state.
Automatic answer is disabled while DTR remains off.
AT&D4:
The modem auto-dials the default remote station upon an off-to-on transition of DTR
and enters the Online Data State. The modem ends the call and enters the command state upon
an on- to-off transition of DTR.
AT&D5:
The modem auto-dials the default remote station upon an on-to-off transition of DTR
and enters the Online Data State. The modem ends the call and enters the command state upon
an off-to-on transition of DTR.
AT&D6:
Upon an on-to-off transition of DTR, the modem performs an orderly clear-down of any
session and turns OFF the RF module. Upon an off-to-on transition of DTR, the modem turns ON
the RF module and reestablishes the radio session.
AT&D7:
Upon an on-to-off transition of DTR, the modem performs an orderly clear-down of any
session and turns OFF the RF module. Upon an off-to-on transition of DTR, the modem turns ON
the RF module and reestablishes the radio session.
AT&D8:
The modem auto-dials the default remote station upon determining DTR is OFF and
enters the Online Data State. The modem ends the call and enters the command state upon
determining DTR is ON.
AT&D9:
The modem auto-dials the default remote station upon determining DTR is ON and
enters the Online Data State. The modem ends the call and enters the command state upon
determining DTR is OFF.
Flow Control:
Sets the Flow Control to None or Hardware control.
