MOXA MGate MB3270-G2 Introduction
The MOXA MGate MB3270-G2 Industrial Ethernet Gateway is a versatile and high-performance solution designed to bridge serial Modbus devices with Ethernet networks. Ideal for industrial automation, this gateway ensures seamless communication between legacy serial equipment and modern IP-based systems. The MGate MB3270-G2 simplifies integration, enabling engineers to connect devices efficiently while maintaining data reliability and operational continuity. As part of MOXA’s Industrial Ethernet Gateway lineup, the MGate MB3270-G2 features two 10/100BaseT(X) RJ45 Ethernet ports for flexible network deployment and redundancy. It supports two DB9 serial ports, allowing simultaneous Modbus RTU/ASCII communication with multiple devices. With an operating temperature range of -10°C to 60°C, it delivers reliable performance in challenging industrial environments. Compact, durable, and easy to configure, this gateway enhances communication efficiency, reduces integration time, and ensures secure, stable operation for industrial automation, SCADA, and building management applications.
MOXA MGate MB3270-G2 Certifications

MOXA MGate MB3270-G2 Features
- 2 x 10/100BaseT(X) Ports (RJ45 connector)
- Ethernet Interface: 2 x RJ45
- 12 to 48 VDC Input Power
- Serial Connector: DB9
- Metal body
- -10 to 60°C operating temperature
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| industrial gateway : Interface | |
| 10/100Mb RJ45 (Megabit) Ports | Yes: 2 x 10/100BaseT(X) Ports (RJ45 connector) |
| Other ports | - |
| industrial gateway : Ethernet Interface | |
| Number of Ports | 2 Ports |
| Magnetic Isolation Protection | 1.5 kV (built-in) |
| Protocols | Modbus TCP Client, Modbus TCP Server, SNTP Client, ARP, DHCP Client, DNS, HTTPS, ICMP, IPv4/IPv6, SMTP, SMTPS, SNMPv1/v2c/v3, SNTP, TCP/IP, UDP, Web Console (HTTP/HTTPS), Device Search Utility (DSU), MCC Tool, Windows Driver Manager Utility, MXview One Software, MXconfig Software |
| industrial gateway : Serial port specifications | |
| Console Port | - |
| 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 |
| Serial Standards | RS-232/422/485 (software-selectable) |
| Connectors | 1/2/4 x DB9 male |
| RS-485-2w Signals | Data+, Data-, GND |
| Isolation | - |
| 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 : General | |
| Management | ARP, DHCP Client, DNS, HTTPS, ICMP, IPv4/IPv6, SMTP, SMTPS, SNMPv1/v2c/v3, SNTP, TCP/IP, UDP |
| MTBF | 2,931,934 hrs |
| Industrial Gateway : Memory | |
| microSD Slot | - |
| industrial gateway : Power Requirements | |
| Input Current | 452 mA @ 12 VDC |
| Input Voltage | 12 to 48 VDC |
| Power Connector | 8-pin terminal block |
| industrial gateway : Security | |
| Authentication | Local database |
| Security | SNMPv3, HTTPS (TLS 1.2) |
| Encryption | AES-128, AES-256, ECC-256, ECC-384, ECC-521, HMAC, RSA-1024, RSA-2048, RSA-3072, RSA-4096, SHA-256, SHA-384 |
| industrial gateway : Physical Characteristics | |
| Dimensions | 25 x 89 x 132 mm (0.98 x 3.50 x 5.19 in) |
| Standards and Certifications | EMC, EMI, EMS, Hazardous Locations, Maritime, Safety, Vibration, ISTA 1A |
| Housing | Metal |
| Operating Temperature | -10 to 60°C (14 to 140°F) |
| Weight | 338 g (0.75 lb) |
| Storage Temperature | -40 to 85°C (-40 to 185°F) |
| Ambient Relative Humidity | 5 to 95% (non-condensing) |
| Installation | Din Rail Mounting Kit |
