Lantronix UDS1100 manual Modem Mode Function Command, Atd

7: Setup Mode: Channel Configuration

When an active connection is in effect, the unit terminates the connection if it receives the following sequence from the attached serial device:

‹No serial data is received for one second.

‹The character sequence +++ is received, with no more than one second between each two characters.

‹No serial data is received for one second after the last + character. At this time, the unit responds affirmatively per the selected echo/response mode.

‹The character string ATH is received, terminated with a carriage return. The unit responds affirmatively according to the selected echo/response mode and drops the network connection. The serial interface reverts to accepting command strings.

If this sequence is not followed, the unit remains in data transfer mode.

Table 7-6. Modem Mode Commands

Modem Mode	Function
Command
ATDTx.x.x.x,pppp or	Makes a connection to an IP address (x.x.x.x) and a remote port
ATDTx.x.x.x/pppp	number (pppp).
ATDTx.x.x.x	Makes a connection to an IP address (x.x.x.x) and the remote port
	number defined within the unit.
ATD0.0.0.0	Forces the unit into Monitor Mode if a remote IP address and port
	number are defined within the unit.
ATD	Forces the unit into Monitor Mode if a remote IP address and port
	number are not defined within the unit.
ATDx.x.x.x	Makes a connection to an IP address (x.x.x.x) and the remote port
	number defined within the unit.
ATH	Hangs up the connection (Entered as +++ATH ).
	Enables or disables connections from the network going to the serial
	port.
	n=0 disables the ability to make a connection from the network to the
ATS0=n	serial port.
	n=1-9 enables the ability to make a connection from the network to
	the serial port.
	n>1-9 is invalid.
	Enables or disables character echo and responses.
ATEn	n=0 disables character echo and responses.
	n=1 enables character echo and responses.
	Enables numeric response or full verbose.
ATVn	n=0 enables numeric response.
	n=1 enables full verbose.

Note: The unit recognizes these AT commands as single commands such as ATE0 or ATV1; it does not recognize compound commands such as ATE0V.

UDS1100 User Guide 48