A) incoming connection, B) response, C) active startup – Lantronix XPress DR+ User Manual
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Chapter 9: Setup Mode: Channel Configuration
XPress DR+ User Guide
73
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
Character
Attempts to connect when it receives a specific start 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.