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 1×RS-232 and 1×RS-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 °C 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 systems—keeping airtime predictable and management centralized.
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

System Architecture
|
Operating System 26751_36c868-33> |
RobustOS Pro 26751_d980b1-ec> |
|
CPU 26751_ae521a-5d> |
i.MX 6ULL, 792 MHz 26751_b8650f-87> |
|
RAM 26751_4ed5d4-a3> |
512 MB DDR3/1 GB DDR3 26751_132095-92> |
|
Flash 26751_dcacef-5e> |
8 GB eMMC 26751_6cb7e8-7e> |
Cellular
|
Supported Technologies 26751_a29c57-d0> |
4G/LTE Cat-1 26751_da1cc1-62> |
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Antennas 26751_0dd6d6-f1> |
1 (MAIN) 26751_590c5c-54> |
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Connector 26751_4c8284-b7> |
SMA-K 26751_d02524-62> |
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SIM 26751_fd6b73-31> |
2 x Mini SIM (2FF) 26751_96b178-a9> |
Ethernet
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Ethernet Ports 26751_54a6ef-79> |
1 x 10/100Mbps 26751_3acb4f-64> |
|
Magnet Isolation Protection 26751_3d3df4-c5> |
1 KV 26751_c09224-0a> |
Serial Port
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Serial Ports 26751_707de5-96> |
1 x RS-232 + 1 x RS-485 26751_c6c10c-27> |
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Connector 26751_7702b1-8a> |
6-pin 3.5 mm terminal block with lock 26751_b7a102-0b> |
|
ESD Protection 26751_76498f-e7> |
8 KV air, 4 KV contact 26751_22c360-a7> |
|
Baud Rate 26751_def526-05> |
300 bps to 115200 bps 26751_ff6364-b0> |
|
Signal Definition 26751_90e00b-d2> |
RS-232: TXD, RXD, GND RS-485: Data+ (A), Data- (B), GND 26751_ef5e69-2b> |
Other Interfaces
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Reset Button 26751_609913-4a> |
1 x RST 26751_41cf1d-2c> |
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LED Indicators 26751_1efd4f-0f> |
1 x RUN, 1 x RSSI, 1 x USR, 1 x MDM 26751_56aa55-a0> |
|
Watchdog 26751_84d362-f3> |
External 26751_75411b-95> |
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USB 26751_57d143-2d> |
1 x USB 2.0 (host), Type A, 5 V, 500 mA 26751_e3c8bc-99> |
Power Supply & Consumption
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PSU Connector 26751_555340-f7> |
2-pin 3.5 mm terminal block with lock 26751_c8c818-10> |
|
Input Voltage 26751_be9510-4c> |
12/24/48 V DC, 9 ~ 60 V DC, reverse polarity protection, surge protection 26751_f02872-1d> |
|
Power Consumption 26751_2e7205-ab> |
Idle: 1 W@12 V |
|
Recommended Power Supply 26751_7f4141-48> |
12 V DC/1.5 A power adapter 26751_386094-ce> |
Physical Characteristics
|
Ingress Protection 26751_6a6055-62> |
IP30 26751_ac0201-b8> |
|
Housing & Weight 26751_2f09da-e3> |
Metal, 374 g 26751_0f8f60-69> |
|
Dimensions 26751_b6859e-e8> |
32 x 105 x 134.8 mm 26751_414d41-1a> |
|
Installation Options 26751_d6883f-2f> |
Desktop, Wall Mount and 35mm DIN Rail 26751_101b09-67> |
|
Operating Temperature 26751_bcf6b5-63> |
-20 – +70 °C 26751_497ba9-c4> |
|
Storage Temperature 26751_b337ae-1d> |
-40 – +85 °C 26751_f6ea0e-65> |
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Relative Humidity 26751_b65d5d-19> |
5 – 95% RH (non-condensing) 26751_164956-a4> |
Software Features
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Network Protocols 26751_c3feed-f8> |
PPP, PPPoE, TCP, UDP, DHCP, ICMP, NAT, HTTP, HTTPs, DNS, NTP, SMTP, Telnet, ARP, VLAN, SSH2, DDNS, etc. 26751_b59482-fc> |
|
VPN Tunnels 26751_681b90-24> |
IPsec, OpenVPN, GRE, L2TP, PPTP, DMVPN 26751_f8230d-54> |
|
Firewalls 26751_531d98-77> |
DMZ, anti-DDoS, Filtering (IP/Domain name/MAC address), Port Mapping, Access Control 26751_4b3244-6b> |
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Remote Management 26751_226191-8e> |
RCMS, Web, CLI, SMS 26751_25fe4b-20> |
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Serial Port Protocols 26751_42ed88-bf> |
Transparent, TCP Client/Server, UDP, Modbus RTU to TCP 26751_8ee314-4c> |
|
SIM Management 26751_67ffb0-0a> |
Smart Roaming 26751_3808c0-68> |
|
Optional Apps 26751_0f8592-65> |
L2TP, PPTP, DMVPN, VRRP, QoS, SNMP, Language, RCMS, Dynamic Route, Captive Portal, Modbus Master, TR069, Edge2Cloud, etc. 26751_ec1067-31> |
Software Development Kit (SDK)
|
Supported Programming Languages 26751_11a79d-dd> |
C, C++, Python, Java, Node.js, etc. (for users to develop own applications) 26751_253f06-22> |
|
Flash available for SDK 26751_cc14de-dd> |
6GB 26751_abe6c9-f1> |
|
RAM available for SDK 26751_4ce5b7-5d> |
256 MB/768 MB 26751_d83cad-52> |
Regulatory and Type Approvals
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Environmental 26751_bc45d6-dc> |
RoHS 2.0 26751_c68af5-8f> |
|
EMI 26751_303f7e-da> |
EN 55032 Conducted Emission Class B |
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EMS 26751_81c112-6f> |
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 26751_30b409-87> |
Available Models
|
Model 26751_6a1c47-46> |
Supported Frequency Bands 26751_fce17d-0c> |
Certifications 26751_3436e3-31> |
Order Code 26751_791ae3-d7> |
Package Contents 26751_99154f-39> |
|
EG5101-A-4E-A31EU |
4G LTE FDD: B1/3/5/7/8/20/28 26751_aacb3c-75> |
CE, RCM CB, UKCA 26751_ee8c78-35> |
A013000005 |
1 x EG5101 Gateway (B Code: B130001) 1 x DIN Rail Mounting Kit 26751_708cfa-e0> |
|
EG5101-A-4E-A31EU |
4G LTE FDD: B1/3/5/7/8/20/28 26751_87e8dc-27> |
CE, RCM CB, UKCA 26751_b15c0b-49> |
A013000006 |
1 x EG5101 Gateway (B Code: B130001) 1 x DIN Rail Mounting Kit 1 x Cellular Antenna 1 x Power Adapter 26751_73f077-8d> |
|
EG5101-B-4E-A31EU |
4G LTE FDD: B1/3/5/7/8/20/28 26751_3d6ec7-2e> |
CE, RCM CB, UKCA 26751_8d3a0a-30> |
A013000007 |
1 x EG5101 Gateway (B Code: B130002) 1 x DIN Rail Mounting Kit 26751_b38edf-ce> |
|
EG5101-B-4E-A31EU |
4G LTE FDD: B1/3/5/7/8/20/28 26751_bf8044-3e> |
CE, RCM CB, UKCA 26751_19fe89-03> |
A013000008 |
1 x EG5101 Gateway (B Code: B130002) 1 x DIN Rail Mounting Kit 1 x Cellular Antenna 1 x Power Adapter 26751_27709c-e0> |
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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