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
Speed	IEEE 802.3 10BaseT IEEE 802.3u 100BaseT(X)
LAN Mode	Dual Subnets
Connector ports	2x 10/100BASE-T(X) RJ-45

Serial Interface
Connector	DB model : D-Sub9 TB and SiS model : 5.08mm 5-Pin Terminal block
Mode	RS-232/422/485 software selectable (TB and DB models) RS-232/422/485 sw selectable (SiS model)
Ports	4 + 1 console port (RJ45)
Baud Rate	50 ~ 460,800 bps software selectable 300 ~ 460,800 bps (SiS Models)
Data Bits	5, 6, 7, 8 software selectable
Stop Bits	1, 2 software selectable
Flow Control	None, Xon/Xoff, RTS/CTS
Isolation	8 kV ESD, 2 kV Magnetic isolation (Sis versions only)

Software
Protocols	ICMP, Modbus TCP/ASCII/RTU, HTTP, ARP
Configuration	Atop Management Utility, Web UI, Telnet, Serial Console

Power	Value
Input Voltage	Dual 9 - 48VDC
Input Current	0.65 A @ 9 VDC
Power Consumption	Approximately 5.85 W (Max)
Connector	7-Pin 5.08mm Lockable Terminal Block
Power Redundancy	Yes
Reverse Polarity Protection	Yes
Relay Output	1A @ 30 VDC (normal open)

Physical Characteristics
Housing	IP30 aluminum housing
Dimension (W x H x D)	53.4 mm x 145.7 mm x 119.9 mm
Weight	900g
Installation	DIN-Rail , Wall mount (optional kit)
Reset Button	Yes

Environmental Limits
Operating Temperature	-40°C~80°C (-40°F~176°F)
Storage Temperature	-40°C~85°C (-40°F~185°F)
Ambient Relative Humidity	5%~95%, 55°C (Non-condensing)

Certification	Standard
Safety	EN 60950-1:2011
EMC	FCC Class A, CE Class A
RoHS 2	Yes
REACH	Yes

Standard	Item	Test	Value	Level	Criteria
IEC 61000-4-2	ESD	Contact Discharge	±6kV	3	A
IEC 61000-4-2	ESD	Air Discharge	±8kV	3	A
IEC 61000-4-3	RS	Radiated (enclosure)	10 V/m	3	A
IEC 61000-4-4	EFT	Power Ports	±2.0kV	3	A
IEC 61000-4-4	EFT	Signal Port	±1.0KV	3	A
IEC 61000-4-5	Surge	Power Port (L-2-E)	±0.5KV	2	A
IEC 61000-4-5	Surge	Signal Port (L-2-E)	±2.0KV	3	A
IEC 61000-4-6	CS	Power Ports	10 V	3	A
IEC 61000-4-6	CS	Signal Port	10 V	3	A
IEC 61000-4-8	PFMF	Enclosure ports	1 A/m continuous	1	A

Certification	Standard
Shock	IEC 60068-2-27
Drop	IEC 60068-2-32
Vibration	IEC 60068-2-64
Warranty	5 Years
MTBF	21 Years

MODEL NAME	PART NUMBER	DESCRIPTION	ETHERNET PORTS	SERIAL PORTS
MB5404D-X	1P1MB5404DX002G - EOL	Ind. 4-Port Serial Device Server, 10/100BASET(X), DB9	2 (RJ45)	4 (DB9)
MB5404D-X-Sis	1P1MB5404DX001G - EOL	Ind. 4-Port Ser. Dev. Serv,10/100BASET(X), 3kV Isolated	2 (RJ45)	4 (TB5)

MODEL NAME	PART NUMBER	DESCRIPTION
SDR-75-24	50500752240001G	75W/3.2A DIN-Rail 24VDC power supply with 88~264VAC / 124~370VDC input
UN315-1212 (US-Y)	50500151120003G	Y-Type power adaptor, 100~240VAC input, 1.25A @ 12VDC output, US plug, LV6
UNE315-1212 (EU-Y)	50500151120013G	Y-Type power adaptor, 100~240VAC input, 1.25A @ 12VDC output, EU plug, LV6
CBL-RJ45(8P)-DB9(F)-90-C	50891971G	8-pin RJ45-DB9 debug cable, 90cm
ADP-DB9(F)-TB5	59906231G	Female DB9 to Female 3.81 TB5 Converter
GDC-120	59906861G	120mm copper woven grounding cable
Wall Mount kit	202EH731000003G	Black metal wall mount kit
Conductive DIN-Rail Kit	201EH731000005G	Conductive silver metal DIN-Rail Kit

Datasheet

VERSION	NAME	TIME	SIZE	DOWNLOAD
v6.0	Datasheet EN	2016-02-22	1.21 MB

Hardware Installation Guide

VERSION	NAME	TIME	SIZE	DOWNLOAD
v1.2	MB5404D Hardware Installation Guide	2014-03-25	439.59 KB

Manual

VERSION	NAME	TIME	SIZE	DOWNLOAD
v1.4	MB5404D User Manual	2017-05-15	3.15 MB

Firmware

VERSION	NAME	TIME	SIZE	DOWNLOAD
v4.42	MB5404D Firmware v4.22	2017-04-18	3.31 MB

Utility

VERSION	NAME	TIME	SIZE	DOWNLOAD
v5.20	Management Utility for Windows	2016-10-28	16.21 MB

Test reports

VERSION	NAME	TIME	SIZE	DOWNLOAD
	SE5404D Declarations of Conformity	2023-03-09	451.50 KB