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

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Lantronix 900-422 manual Incoming Connection, Response, Active Startup
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900-422 specifications

The Lantronix 900-422 is a robust industrial device used primarily for remote access and management applications. Known for its reliability and versatility, this product caters to a variety of sectors, including telecommunications, manufacturing, and energy management.

One of the standout features of the Lantronix 900-422 is its ability to provide secure remote management capabilities. With built-in support for secure protocols like SSH and SSL, users can confidently access and control devices over the internet while ensuring data integrity and confidentiality. This security is crucial for applications where sensitive information is transmitted.

The device is equipped with a versatile multi-port serial connectivity option. With support for multiple serial communication protocols, including RS-232 and RS-485, the 900-422 can seamlessly interface with various types of industrial equipment and sensors. This adaptability enhances its usability in diverse environments and tasks, from monitoring weather stations to managing industrial machines.

Another significant characteristic of the Lantronix 900-422 is its compact and rugged design, making it suitable for installation in harsh industrial settings. Its durable exterior is resistant to dust and moisture, ensuring that it maintains performance even in challenging conditions.

The device also features an intuitive web-based interface, simplifying configuration and management. With this graphical user interface, users can quickly set up the device, manage settings, and monitor connected devices, all from a centralized location. This ease of use significantly reduces the time and effort needed for system administrators to maintain their networks.

Additionally, the Lantronix 900-422 is equipped with advanced monitoring and diagnostic tools. Users can track performance metrics and receive alerts for potential issues, enabling proactive maintenance and reducing downtime. The combination of real-time monitoring and remote access capabilities allows organizations to streamline their operations and respond swiftly to any anomalies.

Overall, the Lantronix 900-422 stands out as a reliable solution for remote device access and management. Its blend of security, versatility, and user-friendly features ensures that it meets the diverse needs of modern industrial applications, making it an essential tool for any organization looking to enhance operational efficiency and reliability.
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