The M1200 Industrial LTE Gateway provides users with stable network connectivity and data transmission for easy Industrial Automation. Connect your machines – as a universal gateway, it can be applied across many verticals, such as Energy, Transportation and Agriculture, to name a few.


Industrial LTE Gateway

The M1200 is an industrial cellular modem equivalent designed to give remote assets internet connectivity via a TCP/IP stack configured on the modem or End Device.

Cost Effective

Designed for simplicity, without the additional features and overheads from a router the M1200 makes the perfect choice for single device connectivity.

Command Driven

The M1200 can be used as a gateway to receive commands via SMS or AT Commands via Telnet to power and manage remote assets.

Secure Remote Access

Support for IPsec, OpenVPN, GRE & RobustVPN allows you to access and communicate with end devices over a secure channel from anywhere in the world.

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The Robustel M1200 Industrial LTE Gateway is a rugged industrial IoT modem, designed for connecting devices to LTE networks globally. It is based on GSM/GPRS/EDGE/UMTS/WCDMA/HSDPA/HSUPA/HSPA+/FDD LTE/TDD LTE networks.
The M1200 enables remote data transmission of local serial ports and I/O, and supports such interfaces as RS-232, RS-485 and mini-USB.
This dual-SIM gateway provides users with stable network connectivity and data transmission.

Key Features

  • Auto GSM/GPRS/EDGE/UMTS/WCDMA/HSDPA/HSUPA/HSPA+/FDD LTE/TDD LTE/ connections (No AT command required)
  • Dual-SIM backup (push-push or MFF type optional)
  • Transparent TCP and UDP protocol connections
  • ICMP, DDNS, SNTP and Telnet
  • Modbus RTU to TCP
  • Auto rebooting via SMS and Timer
  • Configuration and firmware upgrading via USB and RCMS
  • Sending SMS if DI is triggered
  • Robust industrial design (9 to 36V DC, -40 to +75 °C extended operating temperature, desktop or wall mounting or DIN rail mounting)
  • Support bridge (modem only) mode, via serial port or USB port
Cellular Interface
Number of antennas 1
Connector SMA-K
SIM slot 2 (3.0 V & 1.8 V)


Serial Interface
Number of ports 1 x RS-232 + 1 x RS-485
Connector 10-pin 3.5 mm RP female socket with lock
Baud rate 300 bps to 115200 bps
RS-232 TxD, RxD, GND
RS-485 A (Data+), B (Data-)


Digital Input / Digital Output
Number of ports 2 x DI (wet contact) + 1 x DO (wet contact)
Connector 10-pin 3.5 mm RP female socket with lock
ESD withstand level contact: ±6 K, air: ±8 K
Absolute maximum VDC “V+” +5V DC (DI), 30V DC (DO)


USB Port
Number of ports 1 x Mini USB for configuration and power supply
Connector Mini Female
Speed 2.0 high speed up to 480 Mbit/s


LED indicators 1 x RUN + 1 x RSSI (red/green bi-color light)
Built-in RTC, Watchdog, Timer


Software (Basic features of RobustOS)
Network protocols PPP, TCP, UDP, ICMP, HTTP, HTTPs, DNS, NTP, SMTP, Telnet, SSH2, DDNS, etc.
VPN tunnel IPsec, OpenVPN, GRE
Management Web, CLI, SMS
Serial port Transparent, TCP Client/Server, UDP, Modbus RTU Gateway


App Center (Available Apps for RobustOS)
Apps* Language, RobustLink
*Request on demand. For more Apps please visit www.robustel.com.


Power Supply and Consumption
Connector 10-pin 3.5 mm RP female socket with lock
Input voltage 9 to 36V DC
Power consumption Idle: 50 to 70 mA@12 V
Data link: 300 mA (peak) @12 V


Physical Characteristics
Ingress protection IP30
Housing & Weight Plastic, 106 g
Dimensions 85 x 75 x 28.5 mm
Installations Desktop, wall mounting and 35 mm DIN rail mounting








RoHS 2.0, WEEE


EN 55032: 2015 (CE) Class B

EN 55032: 2015 (RE) Class B


IEC 61000-4-2 (ESD) Contact Level 2; Air Level 3

IEC 61000-4-3 (RS) Level 2

IEC 61000-4-4 (EFT) Level 2

IEC 61000-4-5 (Surge) Level 3

IEC 61000-4-6 (CS) Level 2



Antenna Number


Air Interface



Frequency Bands*

EMEA:B1/B3/B5/B7/B8/B20; B38/B40/B41

AU: B1/B2/B3/B4/B5/B7/B8/B28; B40



EMEA: B1/B5/B8

AU: B1/B2/B5/B8



AU: B2/B3/B5/B8

Operating Temperature

-40 to +75 °C

Storage Temperature

-40 to +85 °C

Relative Humidity

0 to 95% RH

*For more information about frequency bands in different countries, please contact your Robustel ANZ sales representative or distributor.

All Robustel Firmware and RobustOS Apps are now available to download from the App Centre section of RCMS Cloud.

If you don’t already have access to RCMS you can create a free account at https://rcms-cloud.robustel.net/rcms/index