Lantronix XPress DR+ manual Incoming Connection, Response, Active Startup

Chapter 9: Setup Mode: Channel Configuration

Connect Mode Option	7	6	5	4	3	2	1	0
Modem Response Only (Numeric)			0	0	1	1	1	1
Modem Response Only (Verbose)			0	0	1	1	1	0

a) Incoming Connection

Never Accept Incoming	Rejects all external connection attempts.
Accept with DTR Active	Accepts external connection requests only when the DTR input
	is asserted. Cannot be used with Modem Mode.
Always Accept	Accepts any incoming connection when a connection is not
	already established. Default setting.

b) Response

Character Response

A single character is transmitted to the serial port when there is a change in connection state:

C = connected, D = disconnected, N = host unreachable.

Single character mode specifies the character response. The IP address of the host connecting to the unit displays when the unit is in verbose mode. This option is overridden when the Active Start Modem Mode or Active Start Host List is in effect. Default setting is Nothing (quiet).

c) Active Startup

No Active Startup	Does not attempt to initiate a connection under any
	circumstance. Default setting.
With Any Character	Attempts to connect when any character is received from the
	serial port.
With DTR Active	Attempts to connect when the DTR input changes from not
	asserted to asserted.
With a Specific Start	Attempts to connect when it receives a specific start character
Character	from the serial port. The default start character is carriage return.
Manual Connection	Attempts to connect when directed by a command string
	received from the serial port. The first character of the command
	string must be a C (ASCII 0x43), and the last character must be
	either a carriage return (ASCII 0x0D) or a line feed (0x0A). No
	blanks or space characters may be in the command string.
	Between the first and last command string characters must be a
	full or partial destination IP address and may be a destination
	port number.
	The IP address must be in standard decimal-dot notation and
	may be a partial address, representing the least significant 1, 2,
	or 3 bytes of the remote IP address. The period is required
	between each pair of IP address numbers.
	If present, the port number must follow the IP address, must be
	presented as a decimal number in the range 1-65535, and must
	be preceded by a forward slash (ASCII 0x2F). The slash
	separates the IP address and the port number. If you omit the
	port number from a command string, the internally stored remote
	port number starts a connection.

XPress DR+ User Guide 73