The Moxa NE-4120A-T is an embedded device server, specifically developed for integrating devices with serial interfaces into Ethernet-based networks. It enables the conversion of RS-422/485 serial devices into network-capable endpoints, allowing existing legacy systems to be seamlessly integrated into modern IT infrastructures. The product is designed for manufacturers and operators of industrial or technical facilities who require a reliable and simple network connection for serial peripheral devices.

Applications

The NE-4120A-T is used in industrial environments where devices such as sensors, controls, measuring instruments, or other serial endpoints must be accessed via Ethernet. It is particularly suitable for scenarios requiring a direct connection between a serial device and a network endpoint (e.g. PC, server, PLC) without the need for additional hardware or complex configurations. Typical applications include factories, power supply facilities, transportation systems, or other areas where robust and maintenance-friendly network integration is required.

Functions and Features in Detail

The device server provides a serial interface compliant with the RS-422/485 standard, connected via a pin header. This allows for flexible and compact integration into existing systems. The Ethernet interface supports data rates of 10/100 Mbps, sufficient to transmit most serial data streams in real time. The integrated Real COM driver technology ensures backward compatibility with older software relying on classic COM ports. This allows existing applications to continue operating without modifications.

Technology Explained Simply

The NE-4120A-T acts as a bridge between serial devices and Ethernet networks. It receives serial data via the RS-422/485 interface and transmits it over the Ethernet network to a designated recipient. Communication occurs via standardized protocols such as TCP Server, TCP Client, and UDP, which can be configured directly within the device. These operating modes allow flexible adaptation to different network environments. Using Ethernet instead of traditional serial cables reduces cabling complexity and increases data transmission range.

Compatibility and Accessories

The device server is designed for use with devices featuring an RS-422/485 interface. The pin header mounting allows direct installation onto a printed circuit board or module system. The Ethernet interface is designed for standard Ethernet networks and does not require special adapters. The integrated Real COM driver technology ensures compatibility with software based on classic serial COM ports.

Mounting and Installation

Installation involves connecting the pin header to the serial device and linking the Ethernet port to the network. Configuration is performed via a network management interface, accessible through a web browser or dedicated configuration software.

Operation

The NE-4120A-T enables reliable and maintenance-friendly network integration of serial devices. The use of standardized protocols and the Real COM driver reduces system integration complexity. The Ethernet connection offers greater range and flexibility compared to traditional serial cables. Operational reliability is ensured by the robust hardware and software architecture.