Robustel R3000-Lite
Industrial Dual-SIM 4G/LTE Router with 1 x LAN & DB9 Serial RS-232 & RS-485
The Robustel R3000-Lite is a proven industrial LTE router for metering, infrastructure, and distribution networks that demand reliable, secure IP backhaul. Dual-SIM redundancy maintains service during carrier issues, while Smart Roaming optimises network selection for roaming SIMs.
For routable access, RobustVPN presents a fixed IP on any SIM, simplifying secure remote maintenance and central monitoring. Fleet operations scale through RCMS Cloud for status, configuration, and firmware updates, with standard VPNs (IPsec, OpenVPN, GRE, L2TP, PPTP, DMVPN) and Web/CLI/SNMP management.
Crucially, R3000-Lite includes a native DB9 (RS-232) port the only Robustel router with DB9 enabling straightforward integration with legacy serial equipment without adapters or custom cabling.
Designed for harsh electrical environments, it offers wide 9–60 V DC input, over-voltage protection, high EMC immunity, and DIN-rail/panel mounting. Result: hardened connectivity and simple router management that modernises legacy assets—without changing your upstream applications.
DUAL-SIM CELLULAR
4G/LTE, 3G & 2G with Dual-SIM Card support for failover
INDUSTRIAL DESIGN
Metal housing, 9–60 V DC input & -40 – +75 °C temp support
INTERFACES
1x LAN, DB9 Serial 1x RS-232 or RS-485
OPERATING SYSTEM
RobustOS – Lightweight Linux kernel with full SDK
RCMS ON-BOARD
RCMS Cloud device management enabled
Example R3000-Lite Use Cases
Automated Meter Reading

Backhaul meter data securely over LTE; maintain reads during outages with dual-SIM resilience; manage routers centrally for updates and diagnostics.
Pipelines & Remote Assets

Provide encrypted LTE backhaul for pipeline RTUs and leak sensors; dual-SIM failover preserves telemetry; RCMS supports centralized monitoring, firmware updates, and change control.
Energy Distribution

Provide resilient IP connectivity for distribution automation panels and substations; enable SCADA access and alarms; maintain operations through carrier outages with dual-SIM failover.
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 26625_41e62b-f1> |
RobustOS 26625_b0a79c-18> |
|
CPU 26625_54e59a-b8> |
ARM, 400 MHz 26625_be4c15-d5> |
|
RAM 26625_705bb3-53> |
128MB 26625_9cac21-c2> |
|
Flash 26625_50dd25-2d> |
256MB 26625_c740f7-57> |
Cellular
|
Supported Technologies 26625_57f094-e5> |
4G/LTE, 3G, 2G 26625_ac4acf-a8> |
|
Antennas 26625_13b13f-b6> |
2 (MAIN + DIV) 26625_d1115b-c5> |
|
Connector 26625_f2e8e9-de> |
SMA-K 26625_927bcd-21> |
|
SIM 26625_f14949-01> |
2 x Mini SIM (2FF) 26625_f859bc-cc> |
Ethernet
|
Ethernet Ports 26625_74914c-41> |
1 x 10/100 Mbps LAN 26625_ac8598-6a> |
|
Magnet Isolation Protection 26625_0f0b1d-c8> |
1.5 KV 26625_8a0918-9b> |
Serial Port
|
Serial Ports 26625_c2bafe-79> |
1 x RS-232 + 1 x RS-485 26625_d48dcf-ef> |
|
Connector 26625_7c61fb-b9> |
DB9, female 26625_8ad9ce-09> |
|
Baud Rate 26625_de2347-8e> |
300 bps ~ 230400 bps 26625_e0517c-13> |
|
Flow Control 26625_ccf454-2e> |
RTS/CTS (for RS-232) 26625_570e7e-97> |
Other Interfaces
|
Reset Button 26625_3166c0-04> |
1 x RST 26625_79f643-45> |
|
LED Indicators 26625_17a2d8-86> |
1 x RUN, 1 x USR, 1 x PPP, 3 x RSSI 26625_c4b0a6-91> |
|
USB 26625_64dd78-46> |
1 x USB 2.0 host, up to 480 Mbps 26625_4ab800-e8> |
|
Watchdog 26625_4109fa-74> |
Built-in 26625_96ee95-b8> |
Power Supply & Consumption
|
PSU Connector 26625_b57cd0-37> |
3.5 mm terminal block 26625_d342c8-c4> |
|
Input Voltage 26625_a4235f-70> |
12/24 V DC, 9 ~ 36 V DC Reverse polarity protection, surge protection 26625_0fca96-25> |
|
Power Consumption 26625_b292be-77> |
Idle: 1.5 W@12 V |
|
Recommended Power Supply 26625_3fe047-f6> |
12 V DC/1.5 A power adapter 26625_3b773a-6c> |
Physical Characteristics
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Ingress Protection 26625_a982f1-c4> |
IP30 26625_26a325-57> |
|
Housing & Weight 26625_9c25e5-17> |
Metal, 305g 26625_b52aae-36> |
|
Dimensions 26625_0a2198-67> |
29.5 x 98 x 105 mm 26625_894e35-60> |
|
Installation Options 26625_34ca7b-a7> |
Desktop, Wall Mount and 35mm DIN Rail 26625_d565dd-24> |
|
Operating Temperature 26625_ec812f-94> |
-40 – +75 °C 26625_8773d3-d4> |
|
Storage Temperature 26625_02fb5a-bf> |
-40 – +85 °C 26625_f2759f-82> |
|
Relative Humidity 26625_7ec082-21> |
5 – 95% RH (non-condensing) 26625_0696d1-88> |
Software Features
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Network Protocols 26625_717a24-11> |
PPP, PPPoE, TCP, UDP, DHCP, ICMP, NAT, HTTP, HTTPs, DNS, NTP, SMTP, Telnet, ARP, VLAN, SSH2, DDNS, etc. 26625_1ef806-27> |
|
VPN Tunnels 26625_c4f2cd-7f> |
IPsec, OpenVPN, GRE, WireGuard 26625_2aa3a6-9c> |
|
Firewalls 26625_6a9d45-7e> |
DMZ, anti-DDoS, Filtering (IP/Domain name/MAC address), Port Mapping, Access Control 26625_c1fabb-61> |
|
Remote Management 26625_80a7e9-cd> |
RCMS, Web, CLI, SMS 26625_a66d5f-38> |
|
Serial Port Protocols 26625_d59ccd-b7> |
Transparent, TCP Client/Server, UDP, Modbus RTU to TCP 26625_69da5d-43> |
|
SIM Management 26625_3c9a7e-30> |
Smart Roaming 26625_c83035-e5> |
|
Optional Apps 26625_c578d8-5b> |
L2TP, PPTP, DMVPN, VRRP, QoS, SNMP, Language, RCMS, Dynamic Route, Captive Portal, Modbus Master, TR069, Edge2Cloud, etc. 26625_da6c83-bb> |
Software Development Kit (SDK)
|
Supported Programming Languages 26625_97ce0d-d0> |
C, C++ 26625_3dffb9-60> |
|
Flash available for SDK 26625_b2d6b5-22> |
64MB 26625_88a98d-e4> |
|
RAM available for SDK 26625_5e2224-dc> |
64MB 26625_e9432b-59> |
Regulatory and Type Approvals
|
Environmental 26625_b1a8f1-80> |
RoHS 2.0, WEEE 26625_f2dbde-10> |
|
EMI 26625_fe0878-88> |
EN 55032 Conducted Emission Class B |
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EMS 26625_9fbdd0-7c> |
EN 61000-4-2 (ESD) Contact Level 2, Air Level 3 |
Available Models
|
Model 26625_23058e-c0> |
Supported Frequency Bands 26625_e435e7-73> |
Certifications 26625_61e3dd-bb> |
Order Code 26625_164927-ae> |
Package Contents 26625_47e7db-c6> |
|
R3000-L4L |
4G LTE FDD: B1/2/3/4/5/7/8/28 4G LTE TDD: B40 3G: B1/2/5/8 2G: B2/3/5/8 26625_751d3e-7f> |
RCM, CRC, SUBTEL, |
A002500706 |
1 x R3000 Lite Router (B Code: B025712) 26625_8896d6-46> |
|
R3000-L4L |
4G LTE FDD: B1/3/8/18/19/26 4G LTE TDD: B41 3G: B1/6/8/19 26625_266b5a-a6> |
Telec, JATE 26625_307910-5e> |
A002500703 |
1 x R3000 Lite Router (B Code: B025719) 26625_439199-bd> |
|
R3000-L4L |
4G LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28 4G LTE TDD: B38/39/40/41 3G: B1/2/4/5/6/8/19 2G: B2/3/5/8 26625_7a1a09-17> |
CE, UKCA, CB, |
A002500702 |
1 x R3000 Lite Router (B Code: B025718) 26625_a9ada4-98> |
|
R3000-L4L |
4G LTE FDD: B1/B3/B7/B8/B20/B28A 3G: B1/B8 2G: B3/B8 26625_545101-3d> |
CE, UKCA, E-Mark, |
A002500704 |
1 x R3000 Lite Router (B Code: B025720) 26625_863a12-b7> |
|
R3000-L4L |
4G LTE FDD: B1/B3/B5/B7/B8/B20 4G LTE TDD: B38/B40/B41 3G: B1/B5/B8 2G: B3/B8 26625_5aee78-a6> |
CE, UKCA, CB 26625_891108-09> |
A002500705 |
1 x R3000 Lite Router (B Code: B025717) 26625_820c4f-9e> |
NOTE:
1. For more information about regional & carrier specific variants please contact us
R3000-Lite 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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