MB5908 Series

MB5908 Series

ATOP MB5908 Series – 8-Port Modbus Gateway w/ RJ45 serial, RS-232/422/485



Diverse Hardware Infrastructure
ATOP MB5908 Series 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. You could set it up via Web Browser, Serial Console, Telnet Console, Windows Utility or through the LCM display in front of the device. Industrial EMC protection makes MB5908 ready for every mission.

Advanced embedded security
MB5908 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.


  • Industrial EMC protection, Opt. Serial port Isolation, -20°C~70°C operation
  • 2 Fast-Ethernet ports, dual-subnet or redundanc
  • 8 sw-selectable RS-232/485/422 RJ45 serial ports, up to 921kbps
  • 24~48 VDC Power Input or 100~240 VAC Power input (EU or US version)
  • Bi-Directional Modbus TCP/RTU/ASCII conversion from Serial to Ethernet and viceversa, VirtualCOM support, advanced Modbus Options available
  • Supports SNMPv1/v2c/v3, Embedded security with IPsec VPN
  • Configuration via Web Browser / Serial Console / Telnet Console / Windows Utility / LCM Matrix

Ordering Information

Part NameArticle NumberDescription
MB5908-DC 1P1MB590800001G 8-Port Modbus Gateway, RJ45, RS232/422/485 DC
MB5908-SiS-DC 1P1MB590800002G8-Port Modbus Gateway, RJ45, Isolated RS422/485 DC
MB5908-EU 1P1MB590800013G 8-Port Modbus Gateway, RJ45, RS232/422/485 EU Plug
MB5908-US 1P1MB590800003G 8-Port Modbus Gateway, RJ45, RS232/422/485 US Plug
MB5908-SiS-EU 1P1MB590800014G 8-Port Modbus Gateway, RJ45, Isol. RS422/485 EU Plug
MB5908-SiS-US 1P1MB590800004G 8-Port Modbus Gateway, RJ45, Isol. RS422/485 US Plug