As industrial automation moves toward smarter, data-driven connectivity, businesses are challenged to modernize aging communication infrastructure without sacrificing the reliability of existing field devices. Across manufacturing plants, utilities, and transportation systems, legacy serial equipment still plays a critical role in daily operations—but modern industrial environments now require secure network access, centralized device management, and seamless integration with Ethernet-based architectures. By upgrading to MOXA’s next-generation NPort G2 Series, organizations can bridge the gap between legacy serial communication and future-ready Industrial IoT networks, improving operational efficiency, strengthening cybersecurity, and enabling more scalable industrial connectivity.


Serial Device (RS-232/485)
Serial
NPort
Ethernet
Edge Network (Monitoring)

MOXA NPort serial device servers provide a reliable bridge between legacy serial equipment and modern Ethernet-based industrial networks. They enable secure, remote connectivity for PLCs, sensors, meters, controllers, and other critical field devices, helping organizations improve data accessibility without replacing existing infrastructure. Built for today’s industrial automation demands, the NPort G2 Series enhances operational efficiency with stronger cybersecurity protection, simplified network management, and seamless integration into evolving Industrial IoT and smart factory environments.


You are here Serial Device Servers NPort G2 Series
Need Modbus to Ethernet? Protocol Gateways MGate G2 Series Need Serial to USB? USB-to-Serial UPort G2 Series



Why NPort G2?

Modern industrial networks require more than stable communication. Security, compliance, and operational visibility are now fundamental requirements for industrial connectivity.

  • Edge Security

    • IEC 62443-4-2 SL2 compliance
    • Centralized authentication
    • HTTPS/SSH encryption

    NPort 6000-G2 model →

  • Performance & Efficiency

    • Simple WebGUI interface
    • One-click diagnostics
    • Lower latency data transfer

    All G2 models available →

  • Industrial Reliability

    • ATEX, CID2, IECEx certified
    • DNV / NEMA TS2 compliance
    • Expanded interface support

    IA5000-G2 model →

  • *DNV certification pending approval. Check the latest product datasheet for current status.*

A long-term commitment to your edge infrastructure.

Long-term stability is essential for industrial operators, where infrastructure must remain reliable for many years of continuous operation. Built on MOXA’s self-developed ASIC technology, the NPort G2 Series reduces reliance on external chip supply chains. It also ensures extended product availability, making it a dependable choice for long-life industrial communication and automation environments.




Explore the NPort G2 Series in action


NPort G2 Web Console Demo

Web Console Demo

The NPort G2 and MGate web consoles run directly in a browser. No extra software is needed. They provide real-time traffic monitoring and built-in diagnostics. Engineers can quickly identify issues during setup and maintenance. One-click log export simplifies reporting.

NPort G2 Security Demo

Edge Security Checks

Industrial networks face growing cybersecurity risks. This video highlights seven key security checks for OT environments. Topics include weak passwords, firmware risks, unsecured data, and unauthorized access. It also covers audit gaps and authentication challenges in distributed systems.





MOXA NPort 6100/6200-G2 Secure Serial Device Servers
IEC 62443-4-2 SL2 Certified

MOXA NPort 6100/6200-G2 Series

Secure 1- and 2-port serial-to-Ethernet device servers with advanced encryption and centralized authentication for reliable industrial network connectivity.

MOXA NPort 6400-G2 Secure Serial Device Servers
IEC 62443-4-2 SL2 Certified

MOXA NPort 6400-G2 Series

Secure 4-port serial-to-Ethernet device servers with advanced encryption and hardware-level protection for reliable industrial network security.

MOXA NPort 6600-G2 High-Density Secure Terminal Servers
IEC 62443-4-2 SL2 Certified

MOXA NPort 6600-G2 Series

High-density secure serial-to-Ethernet device servers with advanced encryption and centralized management for large-scale industrial networks.

MOXA NPort IA5000-G2 Rugged Serial Device Servers
ATEX CID2 IECEx DNV*

MOXA NPort IA5000-G2 Series

Rugged serial-to-Ethernet device servers with industrial surge protection and cascading Ethernet ports for reliable connectivity in harsh environments.

*DNV certification pending approval. Refer to the product datasheet for the latest certification status.




Where NPort G2 Fits in Industrial Applications

  • Plant floors: extending remote access to legacy serial PLCs and controllers while keeping existing field equipment in operation
  • Utilities: supporting encrypted, centrally authenticated monitoring of serial metering and protection equipment across sensitive network segments
  • Transit and outdoor infrastructure: using wide-temperature, ruggedized NPort G2 units for demanding and exposed installations with the IA5000-G2 line
  • Large process plants: connecting and managing dozens or hundreds of serial devices through the high-density 6600-G2 line, available with 8, 16, or 32 ports
  • Regulated OT environments: strengthening access control with centralized login management and HTTPS/SSH encryption to support IEC 62443-4-2 SL2 requirements



Modernizing serial infrastructure does not necessarily require replacing existing field equipment. A dependable device server can connect legacy serial devices to a modern, audited network, helping organizations extend the value of their existing systems. NPort G2 addresses the security and visibility challenges associated with older device servers while protecting investments in serial infrastructure. Contact the Rockford technical team to find the right model or develop a practical G1-to-G2 migration plan.