M1200 Industrial Gateway

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.

  • Key Features
  • Specification
  • Downloads
  • Model

The Robustel M1200 Industrial LTE Gateway is a rugged industrial IoT modem, designed for connecting devices globally. It is based on GSM/GPRS/EDGE/UMTS/WCDMA/HSDPA/HSUPA/HSPA+/FDD LTE/TDD LTE/ networks. 

This dual-SIM gateway enables remote data transmission of local serial ports and I/O, and supports such interfaces as RS232, RS485 and mini-USB. M1200 provides users with stable network connectivity and data transmission. It is available to meet industrial application demands for its standards-compliant industrial designs. As a universal gateway, it can be applied in many scenarios such as Energy, Transportation and Agriculture, etc.

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


dual sim iconsupports interfaces iconremote data transmission iconwide operational temperature range icon

Cellular Interface
Number of antennas 1
Connector SMA-K
SIM 2 Mini SIM (2 FF)


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
Signal definition RS232: TxD, RxD, GND
RS485: 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, 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.


Supported programming language C, C++
Flash available for SDK 3 MB
RAM available for SDK 16 MB


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


Regulatory and Type Approvals
Environmental RoHS2.0, WEEE
EMI EN 55032: 2015 (CE) Class B

EN 55032: 2015 (RE) Class B

EMS 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

M1200 Datasheet


M1200 User Guide


RobustOS Software Manual


*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 Cloud you can Sign Up  freely.

*Please contact our Technical Support if you have any trouble finding the resources.

Model PN Category Frequency Bands* Country/Region Certifications

(*In progress)

M1200-4L B033701 Cat 4 4G: LTE FDD: B1/B2/B3/B4/B5/B7/B8/B28


3G: WCDMA: B1/B2/B5/B8

2G: GSM: B2/B3/B5/B8

South America, Oceania CRC, SUBTEL, Enacom, RCM
B033702 4G: LTE FDD: B1/B3/B5/B7/B8/B20

LTE TDD: B38/B40/B41

3G: WCDMA: B1/B5/B8

2G: GSM: B3/B8


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

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