M1200
M1200
Industrial Cellular Serial/USB Modem and Smart IoT Gateway
The Robustel M1200-4L is a compact industrial LTE Cat-4 gateway that can run as a traditional modem or as a standalone smart gateway.
In Bridge Mode, it passes the public IP via serial or mini-USB for drop-in integration with existing systems no application changes required. Switch to gateway mode to enable dual-SIM resilience, transparent TCP/UDP, Modbus RTU-to-TCP, and VPN options including IPsec, OpenVPN, GRE, L2TP, and PPTP.
Interfaces include RS-232/RS-485 plus 2×DI and 1×DO for common PLC and metering workflows; management is available via Web/CLI/SMS. Fleet operations can be supported via RCMS with firmware/config push and optional RobustVPN for secure remote access. Built for control cabinets and field deployments, it accepts 9–36 V DC, operates from −40 to +70 °C, and mounts on DIN rail or wall.
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)
- IPsec/OpenVPN/GRE/L2TP/PPTP
- 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 RobustLink
- Sending SMS if DI is triggered (optional)
- Robust industrial design 9 to 36V DC, -40 to +75 °C extended operating temperature, desktop or wall mounting or DIN rail mounting
- Introduction
- Application
- Specification
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Introduction
The Robustel Smart Industrial IoT Gateway M1200 is a compact cellular gateway 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 RS-232, RS-485 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.
Robustel is a leading global industrial IoT/M2M hardware and solution provider. Since its establishment in 2010 in Guangzhou, China, Robustel has been focusing on designing and manufacturing industrial cellular routers, gateways, modems, cloud platforms and E2E solutions. In order to support global business in more than 100+ countries and regions, Robustel has set up local offices in Germany, Australia, the Netherlands, Japan and Hong Kong.
Available Models
| Model | Supported Frequency Bands | Certifications | Order Code | Package Contents |
|---|---|---|---|---|
|
M1200-4L EMEA + SEA |
4G/LTE FDD: B1/B3/B5/B7/B8/B20 4G/LTE TDD: B38/B40/B41 3G: B1/B5/B8 2G: B3/B8 |
ICASA, CE, UKCA | A003300703 | 1 x M1200 Gateway (B Code: B033702) |
|
M1200-4L ANZ + LATAM |
4G/LTE FDD: B1/B2/B3/B4/B5/B7/B8/B28 4G/LTE TDD: B40 3G: B1/B2/B5/B8 2G: B2/B3/B5/B8 |
CRC, SUBTEL, RCM, FCC, MTC, ENACOM, URSEC, ARCOTEL |
A003300704 | 1 x M1200 Gateway (B Code: B033701) |
Application
Specification
System Architecture
| Operating System | RobustOS |
|---|---|
| CPU | ARM 300MHz |
| RAM | 64MB |
| Flash | 16MB |
Cellular
| Supported Technologies | 4G/LTE Cat-4, 3G, 2G |
|---|---|
| Antennas | 1 (MAIN) |
| Connector | SMA-K |
| SIM | 2 x Mini SIM (2FF) |
Serial Port
| Serial Ports | 1 x RS-232 + 1 x RS-485 |
|---|---|
| Connector | 10-pin 3.5 mm RP female socket with lock |
| Baud Rate | 3000 bps ~ 115200 bps |
| Signal Definition |
RS-232: TxD, RxD, GND RS-485: A (Data+), B (Data-) |
Digital Input/Outputs
| DI/DO 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+” DC (DI), 30 V DC (DO) |
USB Port
| USB Ports | 1 x Mini USB |
|---|---|
| Connector | Mini Female |
| Speed | 2.0 high speed, up to 480 Mbit/s |
Other Interfaces
| Reset Button | 1 x RST |
|---|---|
| LED Indicators | 1 x RUN, 1 x RSSI (red/green bi-color light) |
Power Supply & Consumption
| PSU Connector | 10-pin 3.5 mm RP female socket with lock |
|---|---|
| Input Voltage | 12/24 V DC, 9 ~ 36 V DC Reverse polarity protection, surge protection |
| Power Consumption |
Idle: 1 W @ 12 V Max: 4 W @ 12 V |
| Recommended Power Supply | 12 V DC / 1.0 A power adapter |
Physical Characteristics
| Ingress Protection | IP30 |
|---|---|
| Housing & Weight | Metal, 106 g |
| Dimensions | 28.5 × 75 × 85 mm |
| Installation Options | Desktop, Wall Mount and 35mm DIN Rail |
| Operating Temperature | -40 – +70 °C |
| Storage Temperature | -40 – +85 °C |
| Relative Humidity | 5 – 95% RH (non-condensing) |
Software Features
| Network Protocols | PPP, PPPoE, TCP, UDP, DHCP, ICMP, NAT, HTTP, HTTPS, DNS, NTP, SMTP, Telnet, ARP, VLAN, SSH2, DDNS, etc. |
|---|---|
| VPN Tunnels | IPsec, OpenVPN, GRE, WireGuard |
| Firewalls | DMZ, anti-DDoS, Filtering (IP/Domain name/MAC address), Port Mapping, Access Control |
| Remote Management | RCMS, Web, CLI, SMS |
| Serial Port Protocols | Transparent, TCP Client/Server, UDP, Modbus RTU Gateway |
Software Development Kit (SDK)
| Supported Programming Languages | C, C++ |
|---|---|
| Flash available for SDK | 3MB |
| RAM available for SDK | 16MB |
Regulatory and Type Approvals
| Environmental | RoHS 2.0, WEEE |
|---|---|
| EMI |
EN 55032 Conducted Emission Class B EN 55032 Radiated Emission Class B |
| EMS |
EN 61000-4-2 (ESD) Contact Level 2, Air Level 3 EN 61000-4-3 (RS) Level 2 EN 61000-4-4 (EFT) Level 2 EN 61000-4-5 (Surge) Level 3 EN 61000-4-6 (CS) Level 2 |
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