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 9โ60 V DC input, over-voltage protection, high EMC immunity, and DIN-rail/panel mounting. Result: hardened connectivity and simple router management that modernises legacy assetsโwithout changing your upstream applications.
DUAL-SIM CELLULAR
4G/LTE, 3G & 2G with Dual-SIM Card support for failover
INDUSTRIAL DESIGN
Metal housing, 9โ60 V DC input & -40 – +75 ยฐC 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, 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 |
|
CPU |
ARM, 400 MHz |
|
RAM |
128MB |
|
Flash |
256MB |
Cellular
|
Supported Technologies |
4G/LTE, 3G, 2G |
|
Antennas |
2 (MAIN + DIV) |
|
Connector |
SMA-K |
|
SIM |
2 x Mini SIM (2FF) |
Ethernet
|
Ethernet Ports |
1 x 10/100 Mbps LAN |
|
Magnet Isolation Protection |
1.5 KV |
Serial Port
|
Serial Ports |
1 x RS-232 + 1 x RS-485 |
|
Connector |
DB9, female |
|
Baud Rate |
300 bps ~ 230400 bps |
|
Flow Control |
RTS/CTS (for RS-232) |
Other Interfaces
|
Reset Button |
1 x RST |
|
LED Indicators |
1 x RUN, 1 x USR, 1 x PPP, 3 x RSSI |
|
USB |
1 x USB 2.0 host, up to 480 Mbps |
|
Watchdog |
Built-in |
Power Supply & Consumption
|
PSU Connector |
3.5 mm terminal block |
|
Input Voltage |
12/24 V DC, 9 ~ 36 V DC Reverse polarity protection, surge protection |
|
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, 305g |
|
Dimensions |
29.5 x 98 x 105 mm |
|
Installation Options |
Desktop, Wall Mount and 35mm DIN Rail |
|
Operating Temperature |
-40 – +75 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, 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 |
|
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++ |
|
Flash available for SDK |
64MB |
|
RAM available for SDK |
64MB |
Regulatory and Type Approvals
|
Environmental |
RoHS 2.0, WEEE |
|
EMI |
EN 55032 Conducted Emission Class B |
|
EMS |
EN 61000-4-2 (ESD) Contact Level 2, Air Level 3 |
Available Models
|
Model |
Supported Frequency Bands |
Certifications |
Order Code |
Package Contents |
|
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 |
RCM, CRC, SUBTEL, |
A002500706 |
1 x R3000 Lite Router (B Code: B025712) |
|
R3000-L4L |
4G LTE FDD: B1/3/8/18/19/26 4G LTE TDD: B41 3G: B1/6/8/19 |
Telec, JATE |
A002500703 |
1 x R3000 Lite Router (B Code: B025719) |
|
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 |
CE, UKCA, CB, |
A002500702 |
1 x R3000 Lite Router (B Code: B025718) |
|
R3000-L4L |
4G LTE FDD: B1/B3/B7/B8/B20/B28A 3G: B1/B8 2G: B3/B8 |
CE, UKCA, E-Mark, |
A002500704 |
1 x R3000 Lite Router (B Code: B025720) |
|
R3000-L4L |
4G LTE FDD: B1/B3/B5/B7/B8/B20 4G LTE TDD: B38/B40/B41 3G: B1/B5/B8 2G: B3/B8 |
CE, UKCA, CB |
A002500705 |
1 x R3000 Lite Router (B Code: B025717) |
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
Find More From Robustel








