Projects connecting wireless sensors with industrial systems and local application logic.
Applications needing only packet forwarding to an existing external network server.
Match the regional LoRaWAN frequency, sensor class, payload decoder, network-server design and eSIM service.
Building monitoring, distributed sensors and industrial telemetry.
Use these official resources to verify specifications, plan deployment, manage software, and confirm support requirements.
It is a strong fit when your project matches the use cases listed in the Best for section and the key specs align with your network, interface, environmental, and management requirements.
Confirm regional connectivity, ports, power, mounting, operating environment, software features, management workflow, and whether you need accessories such as antennas, cables, sensors, or a gateway.
Many Robustel products are used in SCADA, PLC, and remote monitoring workflows. Match the required protocol, interface, bandwidth, and security requirements to the product specifications before deployment.
Compare the related collection, review application articles in the Industrial IoT Blog, or contact Robustel with your site requirements for a technical recommendation.
Model: LG3120e
The LG3120e is a high-performance industrial edge LoRaWAN gateway designed for remote and distributed field deployments where traditional cabling is difficult, costly, or impractical. By merging server-grade processing power with the E2C Field Suite, it provides a native LoRaWAN ecosystem for rapid wireless networking.
● Edge Computing Performance: Features a Quad-core 2.0 GHz Cortex-A53 CPU, 2 GB LPDDR4 RAM, and 8 GB eMMC, enabling local data processing to help reduce cloud traffic and application latency.
● Comprehensive Industrial Connectivity: Integrates built-in LoRaWAN (US915/EU868/AU915/AS923), 4G/3G/2G, 2x Fast Ethernet, 2x RS-232/485, 2x DI, 2x DO, and Wi-Fi.
● Secure & Reliable Industrial OS (RobustOS Pro): Powered by RobustOS Pro (Debian 11), with a built-in LoRaWAN Network Server (LNS), over 300 pre-built sensor codecs for zero-touch onboarding, and E2C Field Suite for integrated field data processing.
● Simplified Cloud Management: Integrates with the RCMS cloud platform for real-time monitoring, centralized management, and OTA updates for firmware, configurations, and applications.
Hardware System
● CPU: Quad-core ARM Cortex-A53@2.0 GHz
● RAM: 2 GB LPDDR4
● Storage: 8 GB eMMC
● Expansion: 1 x microSD, supporting up to 2 TB
● Security: TPM 2.0
● Watchdog: External
● RTC: Remains functional up to 5 days after power loss
● Indicators: 1 x RUN, 1 x RSSI, 1 x MDM, 1 x USR
Network Connectivity
● Cellular: 4G/3G/2G (2 x SMA-K antennas)
● SIM: 1 x Mini SIM (2FF), 1 x eSIM (MFF2); GSMA SGP.22 compliant; supports profile download/removal and typically up to 8 eSIM profiles
● Wi-Fi: 802.11a/b/g/n/ac/ax, 2.4/5 GHz, supports AP and client modes, 1T1R (1 x RP-SMA-K antenna)
● LoRaWAN: US915, EU868, AU915, AS923, supports up to 8 channels receiving data simultaneously (1 x RP-SMA-K antenna)
Interfaces
● Ethernet: 2 x 10/100 Mbps, RJ45, LAN or WAN, with 1.5 kV magnetic isolation protection
● Serial: 2 x RS-232/485 (Software Configurable)
● I/O: 2 x Digital Input, 2 x Digital Output (wet contact)
● USB: 1 x USB 2.0 Host, Type A (5 V, 500 mA), 1 x USB 2.0 Console, Type C
● Reset Button: 1 x RST
Power & Physical
● Input Voltage: 12/24 VDC, 9–36 VDC, with reverse polarity and surge protection
● Power Consumption: 1.5 W (Idle), 15 W (Max) @ 12 VDC
● Housing: Metal
● Protection: IP30
● Dimensions: 49 x 105 x 128 mm
● Weight: 587 g
● Installation: Desktop, Wall Mounting & 35 mm DIN-Rail Mounting
Environmental
● Operating Temperature: -25°C to +70°C
● Storage Temperature: -40°C to +85°C
● Relative Humidity: 5% to 95% (non-condensing)
Certifications
● Regulatory: CE, UKCA, RCM
● Environmental: RoHS 2.0
Software
Operating System
● OS: RobustOS Pro (based on Debian 11 Bullseye)
● Other Features: Smart Roaming V3, Language, eSIM Management, E2C Field Suite
Networking & LoRaWAN
● LoRaWAN Protocols: V1.0.4 Class A/Class C
● Network Protocols: PPP, PPPoE, ARP, VLAN, ICMP, NAT, TCP, UDP, DHCP, DNS, DDNS, NTP, HTTP, HTTPS, Telnet, SSH2, SMTP, Static Routing, etc.
● Serial Port Protocols: Transparent, TCP Client/Server, UDP, Modbus RTU Gateway
Security
● VPN: IPsec, OpenVPN, WireGuard, GRE, DMVPN, L2TP, PPTP
● Firewall: DMZ, anti-DDoS, Filtering (IP/Domain name/MAC address), Port Mapping, Access Control
SDK & Customization
● SDK Languages: C, C++, Python, Java, Node.js, etc. (for users to develop their own applications)
● Available Resources for SDK: 6 GB Flash, 1.5 GB RAM
Management
● Configuration Interfaces: Web, CLI, SMS, RCMS
● Remote Management Platform: Robustel Cloud Manager Service (RCMS)
● RCMS Features:
● Centralized Monitoring & Control
● Fleet-wide Over-the-Air (OTA) updates for firmware, configurations, and applications
● Secure Remote Access to device Web GUI/CLI and connected end-devices
Experience robust, cloud-native device management by registering at: Robustel Cloud Manager Service
● Smart Farming/Agriculture
● Remote Asset Monitoring
● Industrial Facilities & Plant
● Industrial grade fanless design
● Up to 10 years hardware lifetime
● Up to 10 years long term support for Linux
● Up to 5 years hardware warranty
● Global certifications
● Robust connectivity
● Order code: A015800002
● Package contains: 1 x LG3120e+EU868, 2 x Cellular Antenna, 1 x Wi-Fi Antenna, 1 x LoRa Antenna, 1 x Power Adapter, 1 x Wall Mounting Kit
● Order code: A015800004
● Package contains: 1 x LG3120e+AU915, 2 x Cellular Antenna, 1 x Wi-Fi Antenna, 1 x LoRa Antenna, 1 x Power Adapter, 1 x Wall Mounting Kit
● Order code: A015800006
● Package contains: 1 x LG3120e+US915, 2 x Cellular Antenna, 1 x Wi-Fi Antenna, 1 x LoRa Antenna, 1 x Power Adapter, 1 x Wall Mounting Kit
● Order code: A015800008
● Package contains: 1 x LG3120e+AS923, 2 x Cellular Antenna, 1 x Wi-Fi Antenna, 1 x LoRa Antenna, 1 x Power Adapter, 1 x Wall Mounting Kit
