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8-Port IEC61850-3 Certified Industrial Rack-Mount Secure Modbus Gateway, DSub-9 or TB5 connectors, Optional 3kV Serial Isolation, Dual Power input



Ind. 8 Port Modbus Gateway, 100BASE-FX SFP slot,Isolated

0 products currently in stock.

The stock was last updated at 9:44 am Monday, 27 May, 2024. Please contact us for lead times if needed.

Series Description

Diverse Hardware Infrastructure
Modbus Gateway supports the four most commonly used communication  standards, RS-232/485/422(*), and Ethernet. The ease-of-use configuration utility provided with Modbus Gateway can quickly select the hardware interface , and easily switch to the existing communication infrastructure. Industrial EMC protection, IEC61850-3 compliance, and wide temperature operation capability render MB5908A ready for every mission.

Advanced embedded security
MB5908A embeds IPsec VPN Encryption, that allows you to tunnel your data securely throught the internet and prevent unauthorized control of your Serial Devices by malicious people.

Switching between Modbus Protocols
Modbus Gateway supports the standard Modbus protocol and is capable of converting any Modbus protocols between Modbus TCP, Modbus RTU, and Modbus ASCII for all supported hardware interfaces. All of this, in bidirectional
mode: Ethernet and Serial ends can selected to be either master or slave

Modbus ID Routing
Modbus Gateway supports various types of hardware communication interfaces, Modbus protocol conversion, and Modbus ID routing. Therefore the Modbus Gateway can integrate your existing and complex Modbus
hardware configuration into a simple network that can be easily managed.

* 3kV isolated version only supports RS-422/485

Additional information


Network mode

Connector ports





Serial Isolation

Baud Rate

Data Bits

Stop Bits

Flow Control




Modbus concentrator

Modbus redundant concentrator

Rated Supply Voltage

Input Voltage Range

Input Current

Power Consumption

Power Redundancy

Reverse Polarity Protection


Dimension (W x H x D)



Reset Button

Operating Temperature

-40°C~80°C (-40°F~176°F)

Storage Temperature

Ambient Relative Humidity

Need Support?

We understand that it can be difficult to find the right products for your needs. That’s why our dedicated customer support team is available to assist you in any way possible. Whether you need help selecting the best product for your application or more information on a particular device, our knowledgeable staff is here to provide you with the answers you need. Contact us today for more information about how we can help you get the products and support you need!

Product Brand

ATOP Technologies is a leading brand in the world of online retail, providing a wide range of high-quality electronic products at affordable prices. Delivering ready-made and tailored industrial networking solutions, built to withstand the demands of industry and to meet specific project requirements.

MB5908A Series

The MB5908A-6SFP-Sis is part of a wider series. A series refers to a collection of related products or components designed to work together seamlessly, typically within a specific industry or application. These series often share similar features and functionalities, ensuring compatibility and ease of integration for users.

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Version Name Time Size Download
v1.0 Linux_Driver_x64 2021-03-29 210.16 KB Download
v5.60 Management Utility for Windows 2021-01-18 23.65 MB Download
v5.20 Management Utility for Windows 2016-10-28 16.21 MB Download


Version Name Time Size Download
v1.68c MB59XX Firmware (Download and install this file first if your present firmware version is 1.46 or earlier) 2022-10-27 16.14 MB Download
v1.68 MB59XX Firmware 2022-09-13 16.15 MB Download


Version Name Time Size Download
v0.8 Datasheet EN 2023-11-03 373.12 KB Download
v0.7 Datasheet EN 2021-04-06 623.89 KB Download
v0.6 Datasheet EN 2019-06-05 467.53 KB Download
v0.5 Datasheet EN 2018-05-02 561.58 KB Download


Version Name Time Size Download
v1.3 MB59XX User Manual 2018-04-17 3.7 MB Download
v1.4 MB59XX User Manual 2019-11-19 3.76 MB Download

Hardware Installation Guide

Version Name Time Size Download
v1.4 MB5908A Hardware Installation Guide 2024-01-30 3.37 MB Download
v1.3 SE5908-SE5916A-MB5908A-MB5916A-PG5900A-PG5908A-PG5916A Hardware Installation Guide 2017-01-23 4.39 MB Download

Test reports

Version Name Time Size Download
MB5908A Declarations of Conformity 2023-03-20 312.95 KB Download
Supported Documents & Firmware Last Updated: March 27, 2024