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A) incoming connection, B) response, C) active startup – Lantronix XPress DR+ User Manual

Page 73

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Chapter 9: Setup Mode: Channel Configuration

XPress DR+ User Guide

73

Connect Mode Option

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6

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Modem Response Only (Numeric)

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Modem Response Only (Verbose)

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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.