MB5404D Series

4-Port Industrial Wide-Temperature Modbus Gateway - EOL

  • 8KV ESD protection for serial signals
  • Dual 10/100Mbps Fast Ethernet for redundancy with full duplex auto negotiation
  • 4-port RS-232/RS-422/RS-485, baud rate up to 460.8 Kbps
  • Rigid IP50 Metal housing, DIN-Rail and wall mount support
  • Support Modbus TCP/RTU/ASCII, bi-directional communication and Modbus ID virtualization
  • Configuration: Built-in Web Server /Serial Console/ Telnet / Windows-based Utility
  • Monitor, manage and control industrial field devices remotely
MB5404D Series
MB5404D Series

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 equipment 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 infrastructure.

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.

Network Interface
SpeedIEEE 802.3 10BaseT
IEEE 802.3u 100BaseT(X)
LAN ModeDual Subnets
Connector ports2x 10/100BASE-T(X) RJ-45
Serial Interface
ConnectorDB model : D-Sub9
TB and SiS model : 5.08mm 5-Pin Terminal block
ModeRS-232/422/485 software selectable (TB and DB models)
RS-232/422/485 sw selectable (SiS model)
Ports4 + 1 console port (RJ45)
Baud Rate50 ~ 460,800 bps software selectable
300 ~ 460,800 bps (SiS Models)
Data Bits5, 6, 7, 8 software selectable
Stop Bits1, 2 software selectable
Flow ControlNone, Xon/Xoff, RTS/CTS
Isolation8 kV ESD, 2 kV Magnetic isolation (Sis versions only)
ConfigurationAtop Management Utility, Web UI, Telnet, Serial Console
Input VoltageDual 9 - 48VDC
Input Current 0.65 A @ 9 VDC
Power ConsumptionApproximately 5.85 W (Max)
Connector7-Pin 5.08mm Lockable Terminal Block
Power RedundancyYes
Reverse Polarity ProtectionYes
Relay Output1A @ 30 VDC (normal open)
Physical Characteristics
HousingIP30 aluminum housing
Dimension (W x H x D)53.4 mm x 145.7 mm x 119.9 mm
InstallationDIN-Rail , Wall mount (optional kit)
Reset ButtonYes
Environmental Limits
Operating Temperature-40°C~80°C (-40°F~176°F)
Storage Temperature-40°C~85°C (-40°F~185°F)
Ambient Relative Humidity5%~95%, 55°C (Non-condensing)
SafetyEN 60950-1:2011
EMCFCC Class A, CE Class A
RoHS 2Yes
IEC 61000-4-2ESDContact Discharge±6kV3A
IEC 61000-4-2ESDAir Discharge±8kV3A
IEC 61000-4-3RSRadiated (enclosure)10 V/m3A
IEC 61000-4-4EFTPower Ports±2.0kV3A
IEC 61000-4-4EFTSignal Port±1.0KV3A
IEC 61000-4-5SurgePower Port (L-2-E)±0.5KV2A
IEC 61000-4-5SurgeSignal Port (L-2-E)±2.0KV3A
IEC 61000-4-6CSPower Ports10 V 3A
IEC 61000-4-6CSSignal Port10 V3A
IEC 61000-4-8PFMFEnclosure ports1 A/m continuous1A
ShockIEC 60068-2-27
DropIEC 60068-2-32
VibrationIEC 60068-2-64
Warranty5 Years
MTBF21 Years
Ind. 4-Port Serial Device Server, 10/100BASET(X), DB92 (RJ45)4 (DB9)
Ind. 4-Port Ser. Dev. Serv,10/100BASET(X), 3kV Isolated2 (RJ45)4 (TB5)
SDR-75-2450500752240001G75W/3.2A DIN-Rail 24VDC power supply with 88~264VAC / 124~370VDC input
UN315-1212 (US-Y)50500151120003GY-Type power adaptor, 100~240VAC input, 1.25A @ 12VDC output, US plug, LV6
UNE315-1212 (EU-Y)50500151120013GY-Type power adaptor, 100~240VAC input, 1.25A @ 12VDC output, EU plug, LV6
CBL-RJ45(8P)-DB9(F)-90-C50891971G8-pin RJ45-DB9 debug cable, 90cm
ADP-DB9(F)-TB559906231GFemale DB9 to Female 3.81 TB5 Converter
GDC-12059906861G120mm copper woven grounding cable
Wall Mount kit202EH731000003GBlack metal wall mount kit
Conductive DIN-Rail Kit201EH731000005GConductive silver metal DIN-Rail Kit


Version Name Time Size Download
v5.20 Management Utility for Windows 2016-10-28 16.21 MB


Version Name Time Size Download
v4.42 MB5404D Firmware v4.22 2017-04-18 3.31 MB


Version Name Time Size Download
v6.0 Datasheet EN 2016-02-22 1.21 MB


Version Name Time Size Download
v1.4 MB5404D User Manual 2017-05-15 3.15 MB

Hardware Installation Guide

Version Name Time Size Download
v1.2 MB5404D Hardware Installation Guide 2014-03-25 439.59 KB

Test reports

Version Name Time Size Download
MB5404D Declarations of Conformity 2023-03-09 451.5 KB

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