16-Port Secure Terminal Server – RS-232/422/485 – 2kV Isolation – Dual Gigabit LAN – MicroSD Card – TLS/SSH Encryption – IEC 62443-4-2 Security Level 2 Certified – Dual AC Power Input – -10°C to 60°C Temperature Operation

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Who We Are

Impulse Embedded is a leading provider of Industrial computing systems and solutions. Our customers rely on us to provide the best embedded computing products and solutions for the challenges presented by today’s industrial demands. Together with our global manufacturing partners we provide world-class innovative embedded computing and automation products and solutions suitable for multiple industrial market sectors.

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The MOXA NPort 6650I-16-2AC-G2 is a 16-port isolated secure terminal server for projects that need a mid-range serial count, flexible support for RS-232, RS-422, and RS-485, and the additional deployment convenience of the 2AC package variant. With 2 kV isolation, it is especially suitable for electrically noisy industrial networks, power-related control systems, process automation, machine communications, and infrastructure projects where robust serial communications must be maintained between equipment that may not share clean grounding conditions. The combination of 16 ports, 2 power cables, and a -10 to 60°C operating range makes it a strong fit for standard-temperature industrial cabinets and central control racks where both electrical resilience and serial flexibility are needed. 

This model stands out by offering a strong middle ground between compact isolated models and larger rack-level serial aggregation. Compared with the 6650I-8-2AC-G2, it doubles the available serial connectivity. Compared with the 6650I-16-G2, it adds the 2AC package configuration. Compared with the non-isolated 6650-16-2AC-G2, the 2 kV isolation is the main differentiator. It also benefits from the full NPort 6600-G2 security and manageability toolset, including Secure Boot, TLS, SSH, SNMPv3, RADIUS, TACACS+, one-click log collection, and application analysis, all backed by IEC 62443-4-2 Security Level 2 certification. For integrators and operators who need secure serial device networking in standard-temperature environments with higher electrical noise tolerance, the NPort 6650I-16-2AC-G2 is an excellent fit.

Device Type Secure Terminal Server
Ethernet Ports 2x RJ45
Ethernet Speed 10/100/1000 Mbps
Serial Ports 16x RS-232/422/485 (RJ45)
Baud Rate 50 bps to 921.6 kbps
Driver Windows 11, 10, 8.1, 8, and 7 Windows Server, Linux, MacOS
Mounting Desktop, Rack
Market Certifications IEC 62443-4-2, UL, FCC Class A, NEMA TS2, RoHS, CE,
Warranty 5 Years
Input Voltage 2x 100V to 240V AC
Operating Temperature -10 to 60°C

Delivery & Returns

We offer a range of delivery options to suit your needs.

UK Mainland

  • Free next day shipping on all orders over £150 (UK Mainland only)
  • Next day delivery - £12 (UK Mainland only)
  • Postcode Exclusions: ZE, KW15+ PO 30, JE, HS, GY, TR, IM, AB31+, KW 1-14, FK19+, PA20+, IV, PH

Northern Ireland & Highlands

  • Northern Ireland (2 business day delivery) - from £40 (UKIMS required for NI)
  • Highlands delivery (up to 3 business days) - from £30

Ireland

  • Ireland Economy (2-5 business days) - from £35
  • Ireland Priority (1-3 business days) - from £50

RMA

In order to process returned goods, Impulse Embedded Limited uses an internal RMA system. Before returning goods for any reason, please contact Impulse Embedded Limited (returns@impulse-embedded.co.uk) to request an RMA number. Please confirm the reason for the return of the goods, providing the Serial Number, Product Code, and Impulse Embedded Limited Invoice Number (if known).

When returning goods, please ensure they are suitably packed so as to avoid damage, are in the original packaging, along with all accessories, with the outer packaging marked with the RMA number. It is recommended that you use a signed delivery service, as goods lost in transit are not the responsibility of Impulse Embedded Limited.

Please do not write the RMA number on the goods or on the original packaging. Impulse Embedded Limited may refuse returned goods and return them if they arrive without an RMA number, or not in the original packaging.

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Moxa 16 Port RS-232/422/485 Isolated Secure Terminal Server – 2x AC Power Connectors

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  • NPort 6650I-16-2AC-G2

    16 Port RS-232/422/485 Isolated Secure Terminal Server – 2x AC Power Connectors

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