Industrial equipment with several serial devices, sensors and local processing requirements.
Projects selected primarily for LoRaWAN radio connectivity.
Confirm the ordered I/O configuration, supported eSIM service, regional LTE bands and application requirements.
Energy monitoring, industrial data acquisition and OEM machine service.
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: EG3120e
The Robustel EG3120e extends industrial connectivity with edge computing capabilities for local data processing, protocol integration, and application hosting. By combining a quad-core processor with RobustOS Pro, an advanced operating system based on Debian Linux, it provides an open environment for local applications, protocol conversion, and data processing close to field devices.
● Server-Grade Edge Power: Features a Quad-core 2.0 GHz Cortex-A53 CPU, 2 GB LPDDR4 RAM, and 8 GB eMMC for lightweight edge computing applications and instant operational insights.
● Direct Legacy Integration: Offers 4G LTE Cat 4/3G/2G, 2x 10/100 Mbps Ethernet, 4x dedicated RS-485 for direct legacy equipment connection, 1x RS-232, and comprehensive I/O (4x DI, 4x DO, 2x AI, 1x CAN), with optional Wi-Fi 6.
● Secure & Reliable Industrial OS (RobustOS Pro): Powered by RobustOS Pro, based on Debian Linux, offering native support for standard programming languages (C, C++, Java, Python, Node.js), access to thousands of existing Debian packages, and support for APT and DPKG package management.
● Zero-Touch Global Connectivity & Cloud Management: Integrates with the RCMS cloud platform for remote management, featuring native GSMA SGP.22-compliant eSIM support for over-the-air carrier switching and typically up to 8 eSIM profiles.
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 & Management: TPM 2.0, External Watchdog
● RTC: Remains functional for up to 5 days after power loss
● Indicators: 1 x RUN, 1 x RSSI, 1 x MDM, 1 x USR
Network Connectivity
● Cellular: 4G LTE Cat 4/3G/2G
● 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 (Optional): Wi-Fi 6 (802.11a/b/g/n/ac/ax), 2.4/5 GHz, supports AP and Client modes, 1T1R
Interfaces
● Ethernet: 2 x 10/100 Mbps, WAN or LAN
● Serial: 4 x RS-485, 1 x RS-232
● I/O: 4 x Digital Input, 4 x Digital Output, 2 x Analog Input, 1 x CAN 2.0B (up to 1 Mbps)
● USB: 1 x USB 2.0 Host (Type-A), 1 x USB 2.0 Console (Type-C)
Power & Physical
● Input Voltage: 9 to 36 VDC
● 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: DIN-Rail, Wall Mount, Desktop
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 Linux)
Key Supported Software & Protocols
● Serial Port Protocols: Transparent, TCP Client/Server, UDP, Modbus RTU Gateway
● Network Protocols: PPP, PPPoE, ARP, VLAN, ICMP, NAT, TCP, UDP, DHCP, DNS, DDNS, NTP, HTTP, HTTPS, Telnet, SSH2, SMTP, Static Routing, etc.
● VPN: IPsec, OpenVPN, WireGuard, GRE, DMVPN, L2TP, PPTP
● Firewall: DMZ, anti-DoS, Filtering (IP/Domain name/MAC address), Port Mapping, Access Control
SDK & Customization
● SDK Languages: C, C++, Python, Java, Node.js, etc.
● Available Resources for SDK: 6 GB Flash, 1.6 GB RAM
Management
● Configuration Interfaces: Web GUI, Command Line Interface (CLI), SMS
● Remote Management Platform: Robustel Cloud Manager Service (RCMS)
● RCMS Features:
● Centralized Monitoring & Control
● Fleet-wide Over-the-Air (OTA) updates for OS, 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
● Solar & Distributed Energy
● Industrial Data Acquisition
● OEM Machinery Service
● 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: A015700002
● Package contains: 1 x EG3120e, 2 x Cellular Antenna, 1 x Wi-Fi Antenna, 1 x Power Adapter, 1 x DIN Rail Mounting Kit
