Robustel EG5101
Industrial edge computing gateway with Dual-SIM 4G LTE Cat-1, Serial and a Debian-based OS
The Robustel EG5101 is an industrial edge computing gateway that combines LTE Cat-1 backhaul with on-device processing for cost-sensitive deployments. Powered by an NXP i.MX 6ULL (792 MHz) and 8 GB eMMC, it runs RobustOS Pro (Debian 11) with Docker support, enabling lightweight, containerized applications for protocol bridging, buffering, and local preprocessing.
Dual-SIM redundancy and Ethernet WAN provide resilient connectivity, while an enterprise VPN suite (IPsec/OpenVPN/GRE/L2TP/PPTP/DMVPN) secures links to your control systems. For legacy and industrial equipment, the EG5101 includes 1รRS-232 and 1รRS-485 interfaces, simplifying direct connections to PLCs, meters, and instruments alongside IP devices.
A wide operating temperature range and cabinet-friendly mounting suit field panels and plant rooms. Fleet operations scale through RCMS for centralized monitoring, configuration, and firmware updates.
Result: a compact, open platform that delivers reliable connectivity and practical edge capability for smart metering, asset tracking, and distributed monitoring.
DUAL-SIM CELLULAR
4G/LTE Cat-1, Dual-SIM Card support for failover
INDUSTRIAL READY
Metal Housing, Small Form Factor and -20 – +70 ยฐC Support
INTERFACES
1x LAN and RS-232 & RS-485 Serial
OPERATING SYSTEM
RobustOS Pro – Full Linux Debian Operating System
RCMS ON-BOARD
RCMS Cloud device management enabled
Edge Gateway Series ‘Quick Pitch’ Video
Example EG5101 Use Cases
Smart Metering

Poll Modbus meters via RS-485, aggregate/threshold locally in Docker, buffer data, then send compact reports over LTE Cat-1 to MDMS/SCADA with RCMS oversight.
Water & Plant Monitoring

Connect legacy RS-232/RS-485 instruments at reservoirs, pump stations, weather/water-quality sites. Run edge rules to detect excursions and rate-limit chatter; uplink summaries over Cat-1.
Rental & Mobile Equipment

Read controller telemetry over serial, apply on-box logic for runtime/alerts, batch uploads via Cat-1 to fleet systemsโkeeping airtime predictable and management centralized.
Looking for more use cases?
With millions of Robustel devices deployed across more than 100 countries, itโs 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

System Architecture
|
Operating System |
RobustOS Pro |
|
CPU |
i.MX 6ULL, 792 MHz |
|
RAM |
512 MB DDR3/1 GB DDR3 |
|
Flash |
8 GB eMMC |
Cellular
|
Supported Technologies |
4G/LTE Cat-1 |
|
Antennas |
1 (MAIN) |
|
Connector |
SMA-K |
|
SIM |
2 x Mini SIM (2FF) |
Ethernet
|
Ethernet Ports |
1 x 10/100Mbps |
|
Magnet Isolation Protection |
1 KV |
Serial Port
|
Serial Ports |
1 x RS-232 + 1 x RS-485 |
|
Connector |
6-pin 3.5 mm terminal block with lock |
|
ESD Protection |
8 KV air, 4 KV contact |
|
Baud Rate |
300 bps to 115200 bps |
|
Signal Definition |
RS-232: TXD, RXD, GND RS-485: Data+ (A), Data- (B), GND |
Other Interfaces
|
Reset Button |
1 x RST |
|
LED Indicators |
1 x RUN, 1 x RSSI, 1 x USR, 1 x MDM |
|
Watchdog |
External |
|
USB |
1 x USB 2.0 (host), Type A, 5 V, 500 mA |
Power Supply & Consumption
|
PSU Connector |
2-pin 3.5 mm terminal block with lock |
|
Input Voltage |
12/24/48 V DC, 9 ~ 60 V DC, reverse polarity protection, surge protection |
|
Power Consumption |
Idle: 1 W@12 V |
|
Recommended Power Supply |
12 V DC/1.5 A power adapter |
Physical Characteristics
|
Ingress Protection |
IP30 |
|
Housing & Weight |
Metal, 374 g |
|
Dimensions |
32 x 105 x 134.8 mm |
|
Installation Options |
Desktop, Wall Mount and 35mm DIN Rail |
|
Operating Temperature |
-20 – +70 ยฐC |
|
Storage Temperature |
-40 – +85 ยฐC |
|
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, L2TP, PPTP, DMVPN |
|
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 |
|
Optional Apps |
L2TP, PPTP, DMVPN, VRRP, QoS, SNMP, Language, RCMS, Dynamic Route, Captive Portal, Modbus Master, TR069, Edge2Cloud, etc. |
Software Development Kit (SDK)
|
Supported Programming Languages |
C, C++, Python, Java, Node.js, etc. (for users to develop own applications) |
|
Flash available for SDK |
6GB |
|
RAM available for SDK |
256 MB/768 MB |
Regulatory and Type Approvals
|
Environmental |
RoHS 2.0 |
|
EMI |
EN 55032 Conducted 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 EN 61000-4-8 (PFM) Level 2 |
Available Models
|
Model |
Supported Frequency Bands |
Certifications |
Order Code |
Package Contents |
|
EG5101-A-4E-A31EU |
4G LTE FDD: B1/3/5/7/8/20/28 |
CE, RCM CB, UKCA |
A013000005 |
1 x EG5101 Gateway (B Code: B130001) 1 x DIN Rail Mounting Kit |
|
EG5101-A-4E-A31EU |
4G LTE FDD: B1/3/5/7/8/20/28 |
CE, RCM CB, UKCA |
A013000006 |
1 x EG5101 Gateway (B Code: B130001) 1 x DIN Rail Mounting Kit 1 x Cellular Antenna 1 x Power Adapter |
|
EG5101-B-4E-A31EU |
4G LTE FDD: B1/3/5/7/8/20/28 |
CE, RCM CB, UKCA |
A013000007 |
1 x EG5101 Gateway (B Code: B130002) 1 x DIN Rail Mounting Kit |
|
EG5101-B-4E-A31EU |
4G LTE FDD: B1/3/5/7/8/20/28 |
CE, RCM CB, UKCA |
A013000008 |
1 x EG5101 Gateway (B Code: B130002) 1 x DIN Rail Mounting Kit 1 x Cellular Antenna 1 x Power Adapter |
NOTE:
1. For more information about regional & carrier specific variants please contact us
2. * Denotes Certification in Progress
EG5101 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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