Robustel EG5101p
Embedded Industrial edge computing gateway with Dual-SIM 4G LTE Cat-1, Serial and a Debian-based OS
The EG5101p is the board-level, embedded version of Robustel’s EG5101 edge gateway. It’s designed to be built directly into your own hardware — chargers, kiosks, cabinets, controllers — when you want managed cellular backhaul and on-device processing without bolting in a boxed gateway.
Powered by an NXP i.MX 6ULL (792 MHz) with 8 GB eMMC, the EG5101p runs RobustOS Pro (Debian 11) and supports containerized workloads. That means you can deploy your own applications for protocol bridging, buffering, data reduction, and local decision-making at site level, instead of streaming every raw register back to the cloud.
For connectivity, the EG5101p combines LTE Cat 1 with dual-SIM redundancy and Ethernet WAN for resilience in the field. An enterprise VPN toolkit (IPsec, OpenVPN, GRE, L2TP, PPTP, DMVPN) gives you secure tunnels back to your network — even in remote or untrusted locations.
For industrial integration, the board exposes RS-232 and RS-485 alongside Ethernet, so you can talk directly to PLCs, meters, legacy instruments, and panel controllers as well as modern IP devices. Wide temperature tolerance and panel-friendly mounting make it suitable for plant rooms, street cabinets, and OEM enclosures.
In short: EG5101p gives you an embedded, Linux-based edge compute platform with built-in cellular and industrial I/O, ready for rapid integration.
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 EG5101p 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.
System Architecture
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Operating System 28005_b11753-57> |
RobustOS Pro 28005_ce7a43-02> |
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CPU 28005_7b7a91-aa> |
i.MX 6ULL, 792 MHz 28005_1e2611-51> |
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RAM 28005_e74319-a7> |
512 MB DDR3/1 GB DDR3 28005_134912-e0> |
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Flash 28005_f29650-99> |
8 GB eMMC 28005_e2c2f6-f1> |
Cellular
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Supported Technologies 28005_f9713e-51> |
4G/LTE Cat-1 28005_658ff4-c4> |
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Antennas 28005_ac33bc-55> |
1 (MAIN) 28005_9d248a-64> |
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Connector 28005_496f61-25> |
SMA-K 28005_dba034-73> |
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SIM 28005_803af5-0d> |
2 x Mini SIM (2FF) 28005_42cdfe-1c> |
Ethernet
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Ethernet Ports 28005_cdf763-5d> |
1 x 10/100Mbps 28005_2dc5c8-e2> |
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Magnet Isolation Protection 28005_012885-aa> |
1 KV 28005_f0448d-81> |
Serial Port
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Serial Ports 28005_11d341-2b> |
1 x RS-232 + 1 x RS-485 28005_e9bb36-c6> |
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Connector 28005_f7587c-17> |
6-pin 3.5 mm terminal block with lock 28005_eeb553-01> |
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ESD Protection 28005_017224-8a> |
8 KV air, 4 KV contact 28005_3e43bd-4b> |
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Baud Rate 28005_d09b9a-07> |
300 bps to 115200 bps 28005_d95403-a0> |
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Signal Definition 28005_3db879-53> |
RS-232: TXD, RXD, GND RS-485: Data+ (A), Data- (B), GND 28005_dd39cf-49> |
Other Interfaces
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Reset Button 28005_2c88bc-9c> |
1 x RST 28005_552243-51> |
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LED Indicators 28005_7af967-f2> |
1 x RUN, 1 x RSSI, 1 x USR, 1 x MDM 28005_e2ce8d-1d> |
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Watchdog 28005_8c6f97-60> |
External 28005_9133e5-aa> |
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USB 28005_946c28-f2> |
1 x USB 2.0 (host), Type A, 5 V, 500 mA 28005_a9a310-4f> |
Power Supply & Consumption
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PSU Connector 28005_86801e-29> |
2-pin 3.5 mm terminal block with lock 28005_7f8c90-59> |
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Input Voltage 28005_d771bc-af> |
12/24/48 V DC, 9 ~ 60 V DC, reverse polarity protection, surge protection 28005_87e509-da> |
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Power Consumption 28005_0d4c9e-59> |
Idle: 1 W@12 V |
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Recommended Power Supply 28005_7c49c0-51> |
12 V DC/1.5 A power adapter 28005_f2bf52-0b> |
Physical Characteristics
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Ingress Protection 28005_0b4441-a1> |
Exposed Board – Coating Options Available, Contact Robustel 28005_c3d253-b6> |
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Housing & Weight 28005_8c71b8-bf> |
174 g 28005_027403-d6> |
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Dimensions 28005_9d9573-d0> |
32 x 105 x 134.8 mm 28005_2cc1b8-7b> |
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Installation Options 28005_88f4dc-e8> |
Three screw holes |
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Operating Temperature 28005_52f2f3-50> |
-20 – +70 °C 28005_a93d9a-6a> |
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Storage Temperature 28005_f16868-9b> |
-40 – +85 °C 28005_6ca0e1-29> |
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Relative Humidity 28005_9c2a23-b3> |
5 – 95% RH (non-condensing) 28005_f4ec28-da> |
Software Features
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Network Protocols 28005_142cfa-45> |
PPP, PPPoE, TCP, UDP, DHCP, ICMP, NAT, HTTP, HTTPs, DNS, NTP, SMTP, Telnet, ARP, VLAN, SSH2, DDNS, etc. 28005_ab2fd4-bc> |
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VPN Tunnels 28005_735fc4-88> |
IPsec, OpenVPN, GRE, L2TP, PPTP, DMVPN 28005_4b17d0-a6> |
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Firewalls 28005_8aa074-11> |
DMZ, anti-DDoS, Filtering (IP/Domain name/MAC address), Port Mapping, Access Control 28005_7c7bd6-c7> |
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Remote Management 28005_684acb-96> |
RCMS, Web, CLI, SMS 28005_c409c0-67> |
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Serial Port Protocols 28005_e139fe-fa> |
Transparent, TCP Client/Server, UDP, Modbus RTU to TCP 28005_040eaf-31> |
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SIM Management 28005_c2367e-c0> |
Smart Roaming 28005_b42829-b3> |
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Optional Apps 28005_98ca80-dd> |
L2TP, PPTP, DMVPN, VRRP, QoS, SNMP, Language, RCMS, Dynamic Route, Captive Portal, Modbus Master, TR069, Edge2Cloud, etc. 28005_5ecffb-51> |
Software Development Kit (SDK)
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Supported Programming Languages 28005_ef96c9-69> |
C, C++, Python, Java, Node.js, etc. (for users to develop own applications) 28005_c7a8a3-31> |
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Flash available for SDK 28005_51a478-7b> |
6GB 28005_b8e9f3-b9> |
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RAM available for SDK 28005_0657c6-4a> |
256 MB/768 MB 28005_973f6f-d3> |
Regulatory and Type Approvals
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Environmental 28005_34fcaa-ed> |
RoHS 2.0 28005_fd4f80-a2> |
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EMI 28005_eb1895-e4> |
EN 55032 Conducted Emission Class B |
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EMS 28005_eabc14-a7> |
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 28005_d98b7f-28> |
Available Models
EG5101p 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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