As industrial automation continues shifting toward smarter, more connected operations, manufacturers and system integrators face a growing challenge: how to modernize existing serial infrastructure without replacing proven field equipment. Many facilities still rely on legacy serial devices for mission-critical communication, yet modern industrial networks demand higher security, centralized management, and seamless Ethernet integration. Upgrading to MOXA's next-generation NPort G2 Series provides a practical path forward, helping industries strengthen network reliability, simplify remote connectivity, and prepare their operations for the evolving demands of Industrial IoT and digital transformation.


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

NPort serial device servers connect serial-based industrial equipment to Ethernet networks. It enables remote access to PLCs, meters, sensors, and other critical devices across industrial environments. This approach helps organizations extend the usability of existing serial infrastructure while improving accessibility and network integration. The NPort G2 Series also supports modern OT requirements related to cybersecurity, compliance, and operational efficiency.

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Why Choose NPort G2?

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

A Long-term Commitment to Your Edge

Long-term product stability is critical for industrial operators who manage infrastructure that is expected to remain operational for many years. Powered by Moxa’s self-developed ASIC, the NPort G2 Series helps reduce supply-chain dependency while supporting long-term product availability for industrial communication networks.




See NPort G2 Series in Action


NPort G2 Built-in Web Console Demo

Built-in web console

The NPort G2 and MGate web-based consoles are accessible from standard web browsers without additional software installation. Real-time traffic visibility and integrated diagnostic tools help engineering teams locate communication problems more efficiently and simplify troubleshooting during commissioning and maintenance activities. One-click system log export also supports faster reporting and maintenance documentation.

NPort G2 Security Checks Demo

7 security checks: Is your edge network secure?

Industrial cybersecurity requirements continue to expand as OT networks connect more devices and remote infrastructure. This video discusses seven common security situations industrial operators should evaluate, including weak passwords, firmware tampering risks, unsecured data transmission, unauthorized network access, missing audit tracking, and authentication scalability challenges. These scenarios provide practical guidance for improving security across industrial edge networks.





NPort MB3170/3270/3470-G2 Series
IEC 62443-4-2 SL2 Certified

NPort 6100/6200-G2 Series

1- and 2-port secure terminal servers with enhanced centralized authentication and encryption, ideal for protecting compact and mission-critical infrastructure nodes.

NPort MB3170/3270/3470-G2 Series
IEC 62443-4-2 SL2 Certified

NPort 6400-G2 Series

4-port secure terminal servers with hardware-level security and data encryption, designed to protect localized multi-device cabinets against cyber threats.

NPort MB3170/3270/3470-G2 Series
IEC 62443-4-2 SL2 Certified

NPort 6600-G2 Series

8-, 16-, and 32-port high-density secure terminal servers with robust encryption and centralized management, built for large-scale industrial deployments.

NPort MB3170/3270/3470-G2 Series
ATEX CID2 IECEx DNV*

NPort IA5000-G2 Series

1-, 2-, and 4-port rugged serial device servers built for harsh environments, featuring cascading Ethernet ports and industrial-grade surge protection.

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




Where NPort G2 Fits in Industrial Applications

  • Plant floors: maintaining remote access to legacy serial PLCs and controllers without replacing existing field equipment
  • Utilities: enabling encrypted, centrally authenticated monitoring for serial metering and protection equipment across sensitive network segments
  • Transit and outdoor infrastructure: deploying wide-temperature, ruggedized units designed for exposed installation environments with the IA5000-G2 line
  • Large process plants: managing dozens or hundreds of serial connections with the high-density 6600-G2 line, supporting 8, 16, or 32 ports
  • Regulated OT environments: providing centralized login management and HTTPS/SSH encryption to support IEC 62443-4-2 SL2 requirements



Existing serial infrastructure does not have to be replaced to meet today’s standards. Instead, a reliable device server can bridge legacy serial equipment with a modern, audited network while keeping existing field assets in operation. NPort G2 helps protect these existing investments while addressing the security and visibility limitations of older device servers. Contact the eWorld technical team to choose the right model or plan your G1-to-G2 migration.