MOXA MGate MB3270 Industrial Ethernet Gateway
- Model: MGate MB3270
MOXA MGate MB3270 INTRODUCTION
The Moxa MGate MB3270 industrial Ethernet gateway delivers a
dependable and adaptable platform for integrating serial devices into
Ethernet-based control systems. As a core component in Moxa Modbus TCP gateway lineup, the MGate MB3270 bridges Modbus RTU/ASCII and Modbus TCP networks and
allows efficient data communication and flawless system interoperability.
Designed for both compact installations and extensive industrial deployments,
the MGate MB3270 gateway ensures real-time control and data collection across
various industries. It enhances Moxa industrial edge connectivity by linking
older serial-based devices with modern networked systems. Engineered for
reliability and simplicity, the MGate MB3270 is ideal for demanding sectors
like marine, oil and gas, and factory automation, where consistent control and
monitoring are essential. With smart features such as Auto Device Routing, this Moxa industrial Ethernet gateway simplifies configuration and helps streamline
operations in critical automation applications.
Flexible Ethernet and Serial Connectivity
The Moxa MGate MB3270 industrial Ethernet gateway offers two
10/100BaseT(X) Ethernet ports (RJ45 connector) with auto MDI/MDI-X connection
capability and enables flexible deployment within existing Ethernet
infrastructures. On the serial side, the MB3270 provides two serial ports that
support RS-232/422/485, which makes it compatible with a wide range of legacy
devices. The gateway includes both a DB9 male connector for RS-232 and a
terminal block for RS-422/485, suitable for industrial connectivity needs.
Advanced Protocol Support and Reliable Power
This Moxa MGate MB3270 Ethernet gateway supports both Modbus
TCP Client (Master) and Server (Slave) modes and facilitates seamless
communication between Modbus serial devices and TCP-based systems. With a power
input range of 12 to 48 VDC, the MGate MB3270 ensures operational stability in
environments where voltage fluctuation may occur. It can function reliably in
temperatures ranging from 0 to 60°C and provide robust performance in varied
installation conditions.
Ease of Use and Modbus Communication
The MGate MB3270 Modbus gateway features Auto Device
Routing, a key functionality that reduces configuration complexity by
automatically mapping serial Modbus devices to Modbus TCP networks. This
drastically simplifies setup and shortens deployment time. Additionally, the
Moxa MGate MB3270 enables communication between Modbus serial masters and
serial slaves and allows multiple Modbus devices to coexist and interact within
the same industrial network.
As an Authorized Distributor of MOXA, Manufacturers Automation Inc. (ManuAuto) offers a wide variety of Industrial Automation and Communication products across North America, including Canada (Ontario, Toronto) and the US. Buy the MOXA MGate MB3270 Industrial Ethernet Gateway online at a competitive price, with on-time delivery and fast shipping services. Our certified engineers are always available to support you.
You can also find the MGate MB3170-M-SC, MGate MB3270I-T, and MGate MB3270I models in the MOXA MGate MB3170/MB3270 Series.
MOXA MGate MB3270 CERTIFICATIONS
The MGate MB3270 industrial Ethernet gateway is rigorously
tested and certified to perform in demanding industrial conditions. It meets
standards for vibration, shock, and freefall resistance, along with
certifications for safety and electromagnetic compatibility (EMC, EMI, EMS).
This device is also compliant with CE, FCC, DNV, and UL standards, ensuring
global acceptance and regulatory compliance. Engineered for deployment in
potentially explosive environments, the Moxa MGate MB3270 meets stringent safety
requirements. This Moxa protocol gateway is certified for use in ATEX and Class
I Division 2 hazardous zones to ensure safe and reliable performance where
flammable gases or vapors may be present. For more information, refer to the
Moxa MGate MB3270 datasheet.

| Industrial Gateway : Interface | |
| 10/100Mb RJ45 (Megabit) Ports | Yes : 2 Ports (1 IP, Ethernet cascade, Auto MDI/MDI-X connection) |
| Magnetic Isolation Protection | 1.5 kV (built-in) |
| Other ports | No |
| Protocols | Ethernet: Modbus TCP Client (Master), Modbus TCP Server (Slave), Serial: Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave |
| Industrial Gateway : Serial port specifications | |
| Console Port | No |
| Number of Ports | 2 Ports |
| Serial Standards | RS-232/422/485 |
| Connectors | 2 x DB9 male |
| Isolation | No |
| Industrial Gateway : Serial Communication Parameters | |
| Data Bits | 7, 8 |
| Stop Bits | 1, 2 |
| Parity | None, Even, Odd, Space, Mark |
| Flow Control | DTR/DSR, RTS Toggle (RS-232 only), RTS/CTS |
| Baudrate | 50 bps to 921.6 kbps |
| Industrial Gateway : Serial Signals | |
| RS-232 Signals | TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND |
| RS-422 Signals | Tx+, Tx-, Rx+, Rx-, GND |
| RS-485-4w Signals | Tx+, Tx-, Rx+, Rx-, GND |
| RS-485-2w Signals | Data+, Data-, GND |
| Industrial Gateway : General | |
| Management | ARP, DHCP Client, DNS, HTTP, HTTPS, SMTP, SNMP Trap, SNMPv1/v2c/v3, TCP/IP, Telnet, UDP, NTP Client |
| MTBF | 1,477,768 hrs |
| Industrial Gateway : Memory | |
| microSD Slot | No |
| Industrial Gateway : Power Requirements | |
| Input Current | 435 mA @ 12 VDC |
| Input Voltage | 12 to 48 VDC (Redundant dual power inputs) |
| Power Connector | 7-pin terminal block |
| Industrial Gateway : Security | |
| Security | Security Protocols: SNMPv3, HTTPS (TLS 1.2) |
| Authentication | Local database |
| Encryption | HTTPS, AES-128, AES-256, SHA-256 |
| Industrial Gateway : Physical Characteristics | |
| Dimensions | with ears: 29 x 89.2 x 124.5 mm (1.14 x 3.51 x 4.90 in), without ears: 29 x 89.2 x 118.5 mm (1.14 x 3.51 x 4.67 in) |
| Standards and Certifications | EMC: EN 55032/35; EMI: CISPR 32, FCC Part 15B Class A; EMS: IEC 61000-4-2 ESD: Contact: 6 kV; Air: 8 kV, IEC 61000-4-3 RS: 80 MHz to 1 GHz: 10 V/m, IEC 61000-4-4 EFT: Power: 4 kV; Signal: 2 kV, IEC 61000-4-5 Surge: Power: 2 kV, IEC 61000-4-6 CS: 10 V, IEC 61000-4-8 PFMF, IEC 61000-4-11; Hazardous Locations: ATEX, Class I Division 2, IECEx; Maritime: DNV; Freefall: IEC 60068-2-32; Shock: IEC 60068-2-27; Vibration: IEC 60068-2-6, IEC 60068-2-64; Safety: UL 60950-1, IEC 60950-1, EN 62368-1, UL 508; IP30; Telcordia SR332 |
| Housing | Plastic |
| Operating Temperature | 0 to 60°C (32 to 140°F) |
| Weight | 380 g (0.84 lb) |
| Storage Temperature | -40 to 85°C (-40 to 185°F) |
| Ambient Relative Humidity | 5 to 95% (non-condensing) |
| Installation | DIN-rail mounting |