MGate MB3170-G2 Series - Moxa 1-port RS-232/422/485 Ethernet Modbus Gateway – Copper, fibre & SFP options

Ethernet Modbus Gateways – 1x RS-232/422/485 Port – Dual Ethernet with fibre/SFP options – IEC 62443-4-1 secure development lifecycle – Modbus TCP & Modbus RTU/ASCII – DIN-rail mount – Front-facing I/O – Dual 12V to 48V DC – Up to -40°C to +75°C

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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 MGate MB3170-G2 Series is a next-generation 1-port Modbus gateway designed to modernise brownfield serial assets by converting between Modbus TCP and Modbus RTU/ASCII, including support for proprietary and extended Modbus serial protocols. It can operate in transparent mode for direct protocol conversion or in agent mode, which actively polls connected serial devices and caches values so SCADA systems can retrieve data with lower latency and higher throughput.

For flexible network design, MB3170-G2 models support Ethernet cascading or dual-subnet architectures, with copper models offering dual 10/100BaseT(X) ports and fibre models available with fixed 100BaseFX (SC/ST, single-mode or multi-mode) or an SFP option for longer-distance links. Day-to-day commissioning and maintenance are streamlined using the web console and built-in diagnostics and traffic monitoring tools.

Security and management features include HTTPS (TLS 1.2) and SNMPv3, and the platform is developed in line with the IEC 62443-4-1 secure development lifecycle. Industrial deployment is supported by dual 12–48 VDC power inputs, DIN-rail mounting and a relay output, with standard and wide operating temperature variants available. Some models also add 2 kV serial isolation for noisy environments.

Compare Model Specifications

Model Name Device Type Ethernet Ports Ethernet Speed Serial Ports Baud Rate Communication Interface Protocol Support Operation Mode Input Voltage Operating Temperature Market Certifications Mounting Warranty
MGate MB3170-G2 Serial-to-Ethernet Modbus Gateway 2x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -10°C to 60°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-G2-T Serial-to-Ethernet Modbus Gateway 2x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -40 to 75°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170I-G2 Serial-to-Ethernet Modbus Gateway 2x RJ45 10/100 Mbps 1x Isolated RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -10°C to 60°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170I-G2-T Serial-to-Ethernet Modbus Gateway 2x RJ45 10/100 Mbps 1x Isolated RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -40 to 75°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-M-SC-G2 Serial-to-Ethernet Modbus Gateway 1x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -10°C to 60°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-M-SC-G2-T Serial-to-Ethernet Modbus Gateway 1x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -40 to 75°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-M-ST-G2 Serial-to-Ethernet Modbus Gateway 1x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -10°C to 60°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-M-ST-G2-T Serial-to-Ethernet Modbus Gateway 1x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -40 to 75°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-SFP-G2 Serial-to-Ethernet Modbus Gateway 1x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -10°C to 60°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-SFP-G2-T Serial-to-Ethernet Modbus Gateway 1x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -40 to 75°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-S-SC-G2 Serial-to-Ethernet Modbus Gateway 1x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -10°C to 60°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-S-SC-G2-T Serial-to-Ethernet Modbus Gateway 1x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -40 to 75°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
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Model Name Device Type Ethernet Ports Ethernet Speed Serial Ports Baud Rate Communication Interface Protocol Support Operation Mode Input Voltage Operating Temperature Market Certifications Mounting Warranty
MGate MB3170-G2 Serial-to-Ethernet Modbus Gateway 2x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -10°C to 60°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-G2-T Serial-to-Ethernet Modbus Gateway 2x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -40 to 75°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170I-G2 Serial-to-Ethernet Modbus Gateway 2x RJ45 10/100 Mbps 1x Isolated RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -10°C to 60°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170I-G2-T Serial-to-Ethernet Modbus Gateway 2x RJ45 10/100 Mbps 1x Isolated RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -40 to 75°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-M-SC-G2 Serial-to-Ethernet Modbus Gateway 1x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -10°C to 60°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-M-SC-G2-T Serial-to-Ethernet Modbus Gateway 1x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -40 to 75°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-M-ST-G2 Serial-to-Ethernet Modbus Gateway 1x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -10°C to 60°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-M-ST-G2-T Serial-to-Ethernet Modbus Gateway 1x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -40 to 75°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-SFP-G2 Serial-to-Ethernet Modbus Gateway 1x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -10°C to 60°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-SFP-G2-T Serial-to-Ethernet Modbus Gateway 1x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -40 to 75°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-S-SC-G2 Serial-to-Ethernet Modbus Gateway 1x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -10°C to 60°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years
MGate MB3170-S-SC-G2-T Serial-to-Ethernet Modbus Gateway 1x RJ45 10/100 Mbps 1x RS-232/422/485 (DB9) 50bps to 921.6kbps Ethernet, Serial Modbus TCP, MODBUS RTU/ASCII Modbus TCP Client (Master), Modbus TCP Server (Slave), Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave 12V to 48V DC -40 to 75°C CE, FCC Class A, ROHS, Class I Division 2, ATEX DIN-Rail 5 Years

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 1-port RS-232/422/485 Ethernet Modbus Gateway – Copper, fibre & SFP options

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Select the products of this series that you wish to request quantity or project pricing, or lead time information for:

  • MGate MB3170-G2

    1-port RS-232/422/485 Ethernet Modbus Gateway – Copper – Standard temp

  • MGate MB3170-G2-T

    1-port RS-232/422/485 Ethernet Modbus Gateway – Copper – Wide temp

  • MGate MB3170I-G2

    1-port RS-232/422/485 Ethernet Modbus Gateway – Isolated – Standard temp

  • MGate MB3170I-G2-T

    1-port RS-232/422/485 Ethernet Modbus Gateway – Isolated – Wide temp

  • MGate MB3170-M-SC-G2

    1-port RS-232/422/485 Ethernet Modbus Gateway – Multi-mode SC fibre – Standard temp

  • MGate MB3170-M-SC-G2-T

    1-port RS-232/422/485 Ethernet Modbus Gateway – Multi-mode SC fibre – Wide temp

  • MGate MB3170-M-ST-G2

    1-port RS-232/422/485 Ethernet Modbus Gateway – Multi-mode ST fibre – Standard temp

  • MGate MB3170-M-ST-G2-T

    1-port RS-232/422/485 Ethernet Modbus Gateway – Multi-mode ST fibre – Wide temp

  • MGate MB3170-SFP-G2

    1-port RS-232/422/485 Ethernet Modbus Gateway – SFP fibre – Standard temp

  • MGate MB3170-SFP-G2-T

    1-port RS-232/422/485 Ethernet Modbus Gateway – SFP fibre – Wide temp

  • MGate MB3170-S-SC-G2

    1-port RS-232/422/485 Ethernet Modbus Gateway – Single-mode SC fibre – Standard temp

  • MGate MB3170-S-SC-G2-T

    1-port RS-232/422/485 Ethernet Modbus Gateway – Single-mode SC fibre – Wide temp

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