Robustel 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.
EDGE COMPUTING
Quad-core ARM Cortex-A53 @ 2.0 GHz with up to 8 GB RAM and 64 GB eMMC for local applications, data processing, and edge workloads.
ROBUSTOS PRO
Debian 11-based operating system with support for C, C++, Python, Java, Node.js, APT, DPKG, and custom application development.
MULTI-SERIAL
Up to 4 × RS-485, 1 × RS-232, 4 × DI, 4 × DO, 2 × AI, and 1 × CAN for connecting industrial equipment and legacy field devices.
eSIM/eUICC Support
Remotely provision and deploy up to 8 eSIM/eUICC Profiles
INDUSTRIAL DESIGN
Metal enclosure, IP30 protection, TPM 2.0, watchdog, RTC, microSD support, DIN-rail or wall mounting, and -25 °C to +70 °C operating temperature.
Example EG3120e Use Cases
Solar & Distributed Energy
Connect solar, EV charging, and distributed energy assets through one compact edge gateway. The EG3120e supports up to 4 × RS-485, 2 × AI, 4 × DI, 4 × DO, CAN, LTE Cat 4, and eSIM/eUICC, allowing operators to collect field data, run local edge logic, and manage connectivity across remote energy sites.
Industrial Data Acquisition
Modernise existing production environments without replacing working machinery. The EG3120e connects serial devices, sensors, controllers, and industrial equipment using RS-485, RS-232, DI/DO, AI, CAN, Ethernet, and Wi-Fi 6, while RobustOS Pro provides a Debian-based environment for local data processing and custom edge applications.
OEM Machinery Service
Add remote service, telemetry, and edge application capability to industrial machinery. The EG3120e combines LTE Cat 4, eSIM/eUICC, Wi-Fi 6, Ethernet, RS-485, RS-232, DI/DO, AI, CAN, and Debian-based RobustOS Pro, helping OEMs connect equipment, collect machine data, and support products after deployment.
Looking for more use cases?
With millions of Robustel devices deployed across more than 100 countries, it’s impossible to capture every use case above. Explore the links below to discover some of the exciting and innovative ways our technology is making an impact worldwide.
This Device is RCMS Ready
RCMS is a cloud-based IoT device management platform that gives you real-time visibility across your entire Robustel fleet. So you can troubleshoot, update, and optimize performance from anywhere at anytime, without sending engineers to site.
Product Mounting Options
Desktop Mount
DIN Rail Mount
Wall Mount
NOTE: Product still under development specifications subject to change until production
System Architecture
|
Operating System |
RobustOS Pro |
|
CPU |
Quad-core ARM Cortex-A53@2.0 GHz |
|
RAM & Flash options |
2 GB LPDDR4 + 8 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 |
2x 10/100 Mbps (ETH0 configurable as WAN/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) |
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 |
|
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 |
|
Power Consumption |
Idle: 1.5 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 |
Software Development Kit (SDK)
|
Supported Programming Languages |
C, C++, Python, Java, Node.js, etc. (for users to develop own applications) |
|
Debian repository available |
Supports APT and DPKG package management tools |
|
Flash available for SDK |
8 GB Flash version: 6 GB |
|
RAM available for SDK |
2 GB DDR version: 1.6 GB |
Regulatory and Type Approvals
|
Environmental |
RoHS 2.0 |
|
EMI |
EN 55032 Conducted Emission Class B |
|
EMS |
EN 61000-4-2 (ESD) Level 3 |
Available Models
|
Model |
Supported Frequency Bands |
Certifications |
Order Code |
Package Contents |
|
EG3120e-E2EDA-4L-A35GL Global RAM: 2GB DDR |
4G/LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28/66 |
A015700001 |
1 x EG3120e (B Code: B015700001) |
|
|
EG3120e-E2EDA-4L-A35GL Global RAM: 2GB DDR |
4G/LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28/66 |
A015700002 |
1 x EG3120e (B Code: B015700001) |
|
|
EG3120e-E2EDB-4L-A35GL Global RAM: 8GB DDR |
4G/LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28/66 |
A015700003 |
1 x EG3120e (B Code: B015700002) |
|
|
EG3120e-E2EDB-4L-A35GL Global RAM: 8GB DDR |
4G/LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28/66 |
A015700004 |
1 x EG3120e (B Code: B015700002) |
|
|
EG3120e-E2EDC-4L-A35GL Global RAM: 4GB DDR |
4G/LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28/66 |
A015700013 |
1 x EG3120e (B Code: B015700009) |
|
|
EG3120e-E2EDC-4L-A35GL Global RAM: 4GB DDR |
4G/LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28/66 |
A015700019 |
1 x EG3120e (B Code: B015700009) |
NOTE:
1. For more information about regional & carrier specific variants please contact us
2. * Denotes Certification in Progress
EG3120e Downloads
Please note that all product downloads are now located on the Robustel Knowledge Base (https://support.robustel.com) the buttons below will take you to the relevant sections for each product.
Product Documentation
Firmware, Software & Applications
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