EG3120e
EG3120e
eSIM Edge Computing Gateway
Industrial Edge Computing Gateway with LTE, eSIM and Multi-Serial Integration to connect legacy OT equipment
Powered by a quad-core ARM Cortex-A53 processor at 2.0 GHz with up to 8 GB LPDDR4 RAM and 64 GB eMMC storage, the EG3120e is designed for applications that need more than simple connectivity. It can run local workloads, protocol conversion, data collection, buffering, and edge applications closer to industrial equipment, reducing reliance on external PCs or separate serial concentrators where the application requirements fit the device.
Built on RobustOS Pro, based on Debian 11, the EG3120e gives developers access to familiar Linux tools, standard programming languages, APT/DPKG package management, and a broader software ecosystem for building and deploying edge applications.
For OT integration, the EG3120e supports up to 4 × RS-485, 1 × RS-232, 4 × DI, 4 × DO, 2 × AI, and 1 × CAN, making it well suited to industrial environments with meters, inverters, machinery, controllers, sensors, and legacy field devices.
For connectivity, the EG3120e supports LTE Cat 4, 1 × Mini SIM, 1 × MFF2 eSIM, SGP.22 eSIM profile download and removal operations, 2 × Ethernet, and Wi-Fi 6. This gives OEMs, system integrators, and industrial operators a flexible platform for connecting equipment locally while maintaining remote access, monitoring, and cellular lifecycle control.
Features
Server-Grade Edge Power
- Equipped with a Quad-core CPU and up to 8 GB RAM to run heavy local workloads like Docker or Node.js with ease.
- Local processing significantly minimizes cloud data fees and network latency.
E2C Factory: All-in-One Edge Intelligence
- The "6C" Workflow: A unified runtime that seamlessly Collects data, Computes logic, Caches logs, provides a Canvas for visualization, Connects IT/OT, and enables bidirectional Control.
- Instant Operational Insights: Built-in Web SCADA and OEE dashboards automatically calculate performance metrics every minute for a "Transparent Factory".
- Introduction
- Application
- Specification
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Introduction
The Robustel EG3120e extends industrial connectivity with edge computing capabilities for local data processing, protocol integration, and application hosting. Powered by a quad-core 2.0 GHz Cortex-A53 processor and with up to 8 GB of RAM, the EG3120e is not just a router—it provides an industrial Linux-based edge platform capable of running local applications and data analytics closer to field devices.
At its core lies RobustOS Pro, an advanced operating system built on Debian 11 (Bullseye). This open Linux environment helps developers reduce dependency on proprietary development frameworks, offering native support for standard programming languages (C, C++, Java, Python, Node.js) and access to thousands of existing Debian packages. Whether deploying custom edge logic or utilizing pre-built apps from the Robustel Cloud Management System (RCMS), the EG3120e bridges the gap between OT protocols and IT flexibility.
Available Models
| Model | Supported Frequency Bands | Certifications | Order Code | Package Contents |
|---|---|---|---|---|
|
EG3120e-E2EDA-4L-A35GL Global RAM: 2GB DDR Flash: 8GB eMMC |
4G/LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28/66 4G/LTE TDD: B34/38/39/40/41 3G: B1/2/4/5/6/8/19 2G: B2/3/5/8 |
— | A015700001 |
1 x EG3120e (B Code: B015700001) 1 x DIN Rail Mounting Kit |
|
EG3120e-E2EDA-4L-A35GL Global RAM: 2GB DDR Flash: 8GB eMMC |
4G/LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28/66 4G/LTE TDD: B34/38/39/40/41 3G: B1/2/4/5/6/8/19 2G: B2/3/5/8 |
— | A015700002 |
1 x EG3120e (B Code: B015700001) 2 x Cellular Antenna 1 x Wi-Fi Antenna 1 x Power Adapter 1 x DIN Rail Mounting Kit |
|
EG3120e-E2EDB-4L-A35GL Global RAM: 8GB DDR Flash: 64GB eMMC |
4G/LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28/66 4G/LTE TDD: B34/38/39/40/41 3G: B1/2/4/5/6/8/19 2G: B2/3/5/8 |
— | A015700003 |
1 x EG3120e (B Code: B015700002) 1 x DIN Rail Mounting Kit |
|
EG3120e-E2EDB-4L-A35GL Global RAM: 8GB DDR Flash: 64GB eMMC |
4G/LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28/66 4G/LTE TDD: B34/38/39/40/41 3G: B1/2/4/5/6/8/19 2G: B2/3/5/8 |
— | A015700004 |
1 x EG3120e (B Code: B015700002) 2 x Cellular Antenna 1 x Wi-Fi Antenna 1 x Power Adapter 1 x DIN Rail Mounting Kit |
|
EG3120e-E2EDC-4L-A35GL Global RAM: 4GB DDR Flash: 64GB eMMC |
4G/LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28/66 4G/LTE TDD: B34/38/39/40/41 3G: B1/2/4/5/6/8/19 2G: B2/3/5/8 |
— | A015700013 |
1 x EG3120e (B Code: B015700009) 1 x DIN Rail Mounting Kit |
|
EG3120e-E2EDC-4L-A35GL Global RAM: 4GB DDR Flash: 64GB eMMC |
4G/LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28/66 4G/LTE TDD: B34/38/39/40/41 3G: B1/2/4/5/6/8/19 2G: B2/3/5/8 |
— | A015700019 |
1 x EG3120e (B Code: B015700009) 2 x Cellular Antenna 1 x Wi-Fi Antenna 1 x Power Adapter 1 x DIN Rail Mounting Kit |
Application
Specification
System Architecture
| Operating System | RobustOS Pro |
| CPU | Quad-core ARM Cortex-A53@2.0 GHz |
| RAM & Flash options | 2 GB LPDDR4 + 8 GB eMMC 4 GB LPDDR4 + 64 GB eMMC 8 GB LPDDR4 + 64 GB eMMC |
Cellular
| Supported Technologies | 4G/LTE, 3G, 2G |
| Antennas | 2 |
| Connector | SMA-K |
| SIM | 1 x Mini SIM (2FF) |
| eSIM | 1 x eSIM/eUICC (MFF2); GSMA SGP.22 compliant; supports profile download/removal and typically up to 8 eSIM profiles |
Ethernet
| Ethernet Ports | 2 x 10/100 Mbps, WAN or LAN |
| Magnet Isolation Protection | 1 kV |
Serial Port
| Serial Ports | Supports up to 4 x RS-485 and 1 x RS-232 |
| Baud Rate | 300–115200 bps, default 115200 bps |
Digital Input / Digital Output
| I/O capability | Supports up to 4 x DI and 4 x DO |
| Contact type | Wet contact |
| DI input voltage (high level) | 9–-30 V |
| DI input voltage (low level) | 0–3 V |
| DO voltage range | 5–30 V |
| DO load current range | 0–100 mA |
Wi-Fi Interface
| Wi-Fi Antennas | 1x RP-SMA-K, supporting only 1T1R |
| Standards | IEEE 802.11a/b/g/n/ac/ax; supports AP and client modes |
| Frequency Bands |
2.412–2.472 GHz (2.4 GHz ISM band) 5.15–5.825 GHz (5 GHz ISM band) |
AI Interface
| Number of Interfaces | 2 x AI |
| Input Type | Voltage type |
| Voltage Input Range | 0–24 V |
| Current Input Range | 4–20 mA |
CAN Interface
| Number of Interfaces | 1 x CAN |
| Standard | CAN 2.0, up to 1 Mbps |
Other Interfaces
| TPM | TPM 2.0 |
| Reset Button | 1 x RST |
| LED Indicators | 1 x RUN, 1 x RSSI, 1 x MDM, and 1 x USR |
| Watchdog | External |
| USB |
1 x USB 2.0 (host), Type A, 5 V, 500 mA 1 x USB 2.0, Type C, console port |
| RTC | Remains functional up to 5 days after power loss |
| SD-Card | 1x microSD, supporting up to 2 TB |
Power Supply & Consumption
| PSU Connector | 2-pin 3.5 mm terminal block with lock |
| Input Voltage |
12/24 V DC, 9–36 VDC Reverse polarity protection, surge protection |
| Power Consumption |
Idle: 1.5 W @ 12 V Max: 15 W @ 12 V |
| Recommended Power Supply | 12 V DC / 1.5 A power adapter |
Physical Characteristics
| Ingress Protection | IP30 |
| Housing & Weight | Metal, 587 g |
| Dimensions | 49 x 105 x 128 mm |
| Installation Options | Desktop, Wall Mount and 35mm DIN Rail |
| Operating Temperature | -25 to +70 °C |
| Storage Temperature | -40 to +85 °C |
| Relative Humidity | 5–95% RH (non-condensing) |
Software Features
| Network Protocols | PPP, PPPoE, ARP, VLAN, ICMP, NAT, TCP, UDP, DHCP, DNS, DDNS, NTP, HTTP, HTTPS, Telnet, SSH2, SMTP, Static Routing, etc. |
| VPN Tunnels | IPsec, OpenVPN, GRE, L2TP, PPTP, DMVPN, 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 to TCP |
| SIM Management | Smart Roaming V3, Language, eSIM Management, etc. |
| Optional Apps | Request on demand |
Regulatory and Type Approvals
| Environmental | RoHS 2.0 |
| EMI |
EN 55032 Conducted Emission Class B EN 55032 Radiated Emission Class B |
| EMS |
EN 61000-4-2 (ESD) Level 3 EN 61000-4-3 (RS) Level 3 EN 61000-4-4 (EFT) Level 3 EN 61000-4-5 (Surge) Level 3, AC Mains Power Port, Level 3 Signal Ports EN 61000-4-6 (CS) Level 3 |
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