Diverse Hardware Infrastructure Modbus Gateway supports the four most commonly used communication standards, RS-232/485/422, and Ethernet. The ease-ofuse configuration utility provided with Modbus Gateway can quickly select the hardware interface , and easily switch to the existing communication infrastructure. Industrial EMC protection and wide temperature operation capability make MB5901 ready for every mission. And if cabling is an issue, the PoE-powered version can allow MB5901 to be powered through PoE. Embedded Security and advanced features Relax. MB5901 Modbus Gateway supports OpenVPN and IPsec VPN encryption, allowing you to safely use the device over the internet without worrying about malicious attacks, data sniffing or unintentional remote control of your Modbus slaves. On your LAN, RSTP protocol will provide an additional layer of security in case of link losses. 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 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)
PoE standard supported	IEEE 802.3 af (PoE)
Connector ports	RJ45 x 2

Serial Interface
Connector	D-Sub9 RS-232/422/485 software selectable (DB models) 5.08mm 5-Pin Terminal block RS-232/422/485 sw selectable (TB models)
Ports	1
Baud Rate	1,200 ~ 921,600 bps software selectable
Data Bits	5, 6, 7, 8 software selectable
Stop Bits	1, 2 software selectable
Flow Control	None, Xon/Xoff, RTS/CTS

Other Interfaces
USB Ports	1
Speed	USB 2.0
Connector	USB A Type

Software
Protocols	IPv4, ICMP, TCP, UDP, DHCP Client, SNMPv1,v2c,v3, HTTP, HTTPS, Telnet, SMTP/TLS, PPTP, RFC2217, 802.1D-2004 RSTP, Security through OpenVPN Client/Server or IPsec VPN (peer-to-peer or peer-to-side) with up to 37.9Mbps VPN throughput
Configuration	Atop Management Utility, Web UI, Telnet
VirtualCOM	Windows/Linux redirection software
Modbus Gateway Supported Modes	Ethernet: Modbus TCP Server/Client(or VCOM); Serial: Modbus RTU/ASCII (master/slave)
Maximum number of Modbus clients/slaves	Modbus TCP: Maximum 16 clients; Maximum 32 slave connections

Power	Value
Input Voltage	9 - 48VDC (non-PoE Models); or through Ethernet Cable (PoE versions)
Input Current (@ 9VDC)	0.65 A @ 9 VDC
Power Consumption	Approximately 6 W (Max)
Connector	3-Pin 5.08mm Lockable Terminal Block
Reverse Polarity Protection	Yes

Physical Characteristics	Value
Housing	IP30 SPCC housing
Dimension (W x H x D)	32 x 110 x 90 mm (1.26 x 4.33 x 3.54 in)
Weight	400g
Installation	DIN-Rail , Wall mount (optional kit)
Reset Button	Yes

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

Certification	Standard
Safety	EN60950-1:2006; EN62368-1
EMC	FCC Part 15, Subpart B, Class A EN 55032, EN 61000-3-2, EN 61000-3-3, EN 55024, EN 61000-6-2, EN 61000-6-4
RoHS	Yes
REACH	Yes

Standard	Item	Test	Value	Level
IEC 61000-4-2	ESD	Contact Discharge	±8KV	4
IEC 61000-4-2	ESD	Air Discharge	±15KV	4
IEC 61000-4-3	RS	Radiated (enclosure)	10 V/m	3
IEC 61000-4-4	EFT	AC Power port	±2.0KV	3
IEC 61000-4-4	EFT	DC Power Port	±2.0KV	3
IEC 61000-4-4	EFT	Signal Port	±2.0KV	3
IEC 61000-4-5	Surge	AC Power Port	Line-to Line±1.0KV	3
IEC 61000-4-5	Surge	AC Power Port	Line-to Earth±2.0KV	3
IEC 61000-4-5	Surge	Signal Port	Line-to Earth±2.0KV	3
IEC 61000-4-6	CS	Conducted (enclosure)	10 V rms	3
IEC 61000-4-8	PFMF	Enclosure	30 A/m	3
IEC 61000-4-11	DIP	Power Port	-	A

Certification	Standard
Shock	IEC 60068-2-27
Drop	IEC 60068-2-32
Vibration	IEC 60068-2-64
Warranty	5 Years
MTBF	21.16 years (MIL-HDBK-217F-based prediction)

MODEL NAME	PART NUMBER	DESCRIPTION	ETHERNET PORTS	SERIAL PORTS
MB5901-DB	1P1MB5901DB001G	1-port RS-232/422/485 Industrial Modbus Gateway, DB9	2 (RJ45)	1 (DB9)
MB5901-TB	1P1MB5901TB001G	1-port RS-232/422/485 Industrial Modbus Gateway, TB5	2 (RJ45)	1 (TB)
MB5901-PoE-DB	1P1MB5901DB003G	1-port RS-232/422/485 Ind. Modbus Gateway, DB9, PoE Powered (802.3af)	2 (RJ45)	1 (DB9)
MB5901-PoE-TB	1P1MB5901TB003G	1-port RS-232/422/485 Ind. Modbus Gateway, TB5, PoE Powered (802.3af)	2 (RJ45)	1 (TB)

MODEL NAME	PART NUMBER	DESCRIPTION
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
ADP-DB9(F)-TB5	59906231G	Female DB9 to Female 3.81 TB5 Converter
WMK-315-Black	70100000000050G	Black Aluminum Wall Mount Kit

Datasheet

VERSION	NAME	TIME	SIZE	DOWNLOAD
v0.9	Datasheet EN	2024-10-24	225.20 KB
v0.8	Datasheet EN	2023-11-01	205.28 KB
v0.7	Datasheet EN	2022-11-10	286.79 KB
v0.6	Datasheet EN	2020-07-10	435.43 KB
v0.5	Datasheet EN	2018-05-02	383.02 KB
4 older versions

Hardware Installation Guide

VERSION	NAME	TIME	SIZE	DOWNLOAD
v2.0	SE5901/MB5901/PG5901 Hardware Installation Guide	2024-06-01	4.51 MB
v1.4	SE5901/MB5901/PG5901 Hardware Installation Guide	2021-02-22	2.96 MB
v1.1	SE5901/MB5901/PG5901 Hardware Installation Guide	2015-07-15	921.06 KB
2 older versions

Manual

VERSION	NAME	TIME	SIZE	DOWNLOAD
v1.4	MB59XX User Manual	2019-11-19	3.76 MB
v1.3	MB59XX User Manual	2018-04-17	3.70 MB
1 older version

Firmware

VERSION	NAME	TIME	SIZE	DOWNLOAD
v1.77	MB59XX Firmware	2024-08-12	15.92 MB
v1.68	MB59XX Firmware	2022-09-13	16.15 MB
1 older version
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

Utility

VERSION	NAME	TIME	SIZE	DOWNLOAD
v1.0	Linux Driver_x64	2021-03-29	210.16 KB
v5.60	Management Utility for Windows	2021-01-18	23.65 MB
v5.20	Management Utility for Windows	2016-10-28	16.21 MB
1 older version

STP/DXF drawings

VERSION	NAME	TIME	SIZE	DOWNLOAD
v1.0	STP File PG-SE-MB5901	2022-07-07	5.20 MB

Test reports

VERSION	NAME	TIME	SIZE	DOWNLOAD
	MB5901 Declarations of Conformity	2023-03-20	281.66 KB
	IEC/EN 62368-1	2022-11-08	5.19 MB