Lantronix XPort manual Message Meaning, Full Verbose, Modem Mode Messages

				4: Using Setup Mode for Configuration
	Full Verbose		The unit echoes modem commands and responds to a command
			with a message string shown in the table below.
	1-Character		The unit echoes modem commands and responds to a command
	Response		with a single character response.
				Table 4-11. Modem Mode Messages
		Message		Meaning
		Full Verbose
		OK		Command was executed without error.
		CONNECT		A network connection has been established.
		NO CARRIER		A network connection has been closed.
		RING n.n.n.n.		A remote device, having IP address n.n.n.n, is connecting to this
				device.
		1-Character Response
0				OK
1				Connected
2				Ring
3				No Carrier
4				Error

Received commands must begin with the two-character sequence AT and be terminated with a carriage return character.

The unit ignores any character sequence received not starting with AT, and only recognizes and processes single AT-style commands. The unit treats compound AT commands as unrecognized commands.

If the Full Verbose option is in effect, the unit responds to an unrecognized command string that is otherwise formatted correctly (begins with AT and ends with carriage return) with the OK message and takes no further action.

If the 1-Character Response option is in effect, the unit responds to an unrecognized command string that is otherwise formatted correctly with OK and takes no further action.

When an active connection is in effect, the unit transfers data and does not process commands received from the serial interface.

When a connection is terminated or lost, the unit reverts to command mode.

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.

XPort™ User Guide 32