7: Setup Mode: Channel Configuration

Table 4-11. Modem Mode Messages

MessageMeaning

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.

 

 

 

Numeric Response

 

0

1

2

3

4

OK

Connected

Ring

No Carrier

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 Numeric Response option is in effect, the unit responds to an unrecognized command string that is otherwise formatted correctly with a "0" message 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.

The character string ATH is received terminated with a carriage return. The unit responds affirmatively according to the selected echo/response mode and drops the network connection. The serial interface reverts to accepting command strings.

If this sequence is not followed, the unit remains in data transfer mode.

UDS2100 User Guide

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Lantronix UDS2100 manual MessageMeaning, No Carrier

UDS2100 specifications

The Lantronix UDS2100 is a versatile device server designed to facilitate connections between serial devices and Ethernet networks. This innovative product acts as a bridge, allowing for seamless communication between legacy serial devices and modern IP-based systems. Its importance has grown, particularly in industries that still rely on serial technology but seek to integrate with contemporary IT infrastructures.

One of the main features of the UDS2100 is its ability to connect up to two serial devices simultaneously. This dual-port capability makes it an efficient solution for environments where multiple devices need to be networked without additional complexity. By enabling these connections, the UDS2100 allows for remote control and monitoring of various equipment, leading to increased operational efficiency.

The device supports a variety of communication protocols, including TCP/IP, UDP, and HTTP, ensuring compatibility with a broad range of applications. This flexibility is complemented by the UDS2100’s support for both standard and custom baud rates, making it adaptable to various serial device configurations. Users can configure the device via a web-based interface, simplifying the setup process and enhancing user experience.

In terms of security, the Lantronix UDS2100 is equipped with numerous features to protect data transmission over the network. These include support for Secure Sockets Layer (SSL) and Transport Layer Security (TLS), which encrypt the data being transmitted, ensuring that sensitive information remains protected from potential threats.

The UDS2100 also features robust diagnostic capabilities, offering real-time monitoring and logging of connections. This allows users to troubleshoot issues efficiently and maintain optimal performance of their connected devices. Moreover, the device supports multiple networking protocols, including DHCP and static IP addressing, providing further flexibility in network management.

With its compact design and robust enclosure, the UDS2100 can be easily integrated into existing systems without requiring significant modifications. Its reliability and performance make it suitable for various applications, including manufacturing, telecommunications, and medical devices. Overall, the Lantronix UDS2100 stands out as a reliable solution for businesses looking to modernize their infrastructure while maintaining compatibility with legacy equipment.