8-Port Rack Mountable Modbus Gateway with software selectable RS-232/422/485 serial RJ45connectors and 2 Fast-Ethernet RJ45 ports

Modbus is an industry adopted communication protocol based on RTU, ASCII, and TCP protocols for various applications; these three protocols are commonly used by various equipments in the industry, such as DCS, PLC, HMI, power meters, various sensor and measuring instruments.

The Modbus Gateway is capable of implementing the Modbus protocol conversion between different hardware interfaces, thereby streamlining the process of management and application.

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 infrastruc- ture.

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.

Modbus ID Routing

Modbus Gateway is not only capable of hardware and protocol conversions, and when a Modbus ID conflict occurs, the Modbus Gateway also supports ID routing to the existing Modbus hardware.

Simple Integration for Complex Configurations

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.


Connector RJ45
Compliance IEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-TX
Port(s) 2 x RJ45
Transmission Rate 10/100 Mbps
Auto MDI/MDI-X Yes
Connector RJ45
Mode RS-232 or RS-422 / 485
Isolation Yes
Port(s) (MB5408A)
16 (MB5416A)
Baud rate 50bps~921kbps
Parity None, Odd, Even, Mark, Space
Data bits 5,6,7,8
Stop Bit 1,2
Flow Control None, Xon/Xoff, RTS/CTS (RS-232 only)
Connector IEC 60320-1 C14 AC Power Inlet (AC models) / 5.08mm 3-pin Lockable Terminal Block (DC models)
Input Voltage 100~240 VAC (AC models) / 24-48 VDC (DC models)
Power Consumption 0.21A @100 VAC / 0.54A @24 VDC
Reverse Polarity Protection Yes (DC input)
Redundancy No
EMI EN 55022: 2010, EN 55024: 2010, FCC Part 15B, Class A
EMS ESD Level 4, RS Level 3, EFT Level 3 / 4, Surge Level 2 / 3 / 4, CS Level 3, PFMF Level 3, DIP.
Safety EN 60950-1
Shock IEC 60068-2-27
Freefall IEC 60068-2-32
Vibration IEC 60068-2-6
Operating -20°C ~ 70°C (-4°F ~ 158°F)
Storage -40°C ~ 85°C (-40°F ~ 185°F)
Humidity 5 ~ 95%RH(Non-condensing)
(W x H x D) 436 mm x 43.5 mm x 200 mm
Material Metal
Installation 19” Rack Mount
Reset Button Yes
Weight 3.0kg
Main Feature ID Mapping, Modbus Caching, Modbus Routing
Configuration Serial Manager / Web UI / Telnet
Virtual COM Windows / Linux driver
Supported Protocol IPv4, ICMP, TCP, UDP, DHCP Client, SNMP, HTTP, Telnet, RFC2217, NTP, DNS, SMTP, Syslog
Link Mode
TCP Server 32 Modbus TCP Master/Slave Connections (shared by all COM ports), Virtual COM
Warranty 5 years

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