Robustel R1511
Compact Industrial 4G/LTE Router with 2 x LAN Ports +
Serial RS232 or RS485
The Robustel R1511 is an industrial LTE router designed to connect both Ethernet and serial equipment to your network securely and reliably.
It offers two Fast-Ethernet ports (configurable LAN/WAN) plus a hardware option for RS-232 or RS-485, enabling direct connectivity for legacy devices and PLCs. A built-in Modbus RTU→TCP gateway and transparent TCP/UDP modes simplify serial-to-IP integration without altering upstream applications. Optional Wi-Fi (AP/Client) and automatic failover support flexible backhaul designs across 4G/3G/2G, Ethernet, or Wi-Fi.
Fleet operations scale through RCMS for monitoring, configuration, and updates, while RobustVPN provides a fixed-IP service on any SIM for straightforward remote access. Management is available via Web/CLI/SMS, with additional apps and SDK support in RobustOS for deployment-specific needs.
Compact and cabinet-friendly, the R1511 delivers the connectivity and lifecycle management required for modern IIoT while supporting existing serial assets.
CELLULAR
4G/LTE, 3G & 2G
Wi-Fi
802.11 b/g/n, supporting AP and Client modes
INTERFACES
1x WAN, 1x LAN or 2x LAN,
1x RS-232 OR RS-485
OPERATING SYSTEM
RobustOS – Lightweight Linux kernel with full SDK
RCMS ON-BOARD
RCMS Cloud device management enabled
Example R1511 Use Cases
PLC/SCADA Serial Assets
Enable secure IP connectivity for RS-232/RS-485 PLCs and RTUs. Convert Modbus RTU to TCP, maintain telemetry during outages, and manage router configuration centrally.
Energy Metering & Panels
Bring Modbus meters, breakers and inverters online without replacing hardware. Backhaul readings over LTE/Ethernet, feed EMS/SCADA, and streamline fleet updates with RCMS.
Environmental Monitoring
Connect RS-485 water monitors, data loggers and weather stations to your platform. Backhaul telemetry over LTE, translate Modbus RTU to TCP, and manage devices centrally with RCMS.
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 |
RobustOS |
|
CPU |
MIPS, 650 MHz |
|
RAM |
128MB |
|
Flash |
16MB |
Cellular
|
Supported Technologies |
4G/LTE, 3G, 2G |
|
Antennas |
2 (MAIN + DIV) |
|
Connector |
SMA-K |
|
SIM |
1 x Mini SIM (2FF) |
Ethernet
|
Ethernet Ports |
2 x 10/100 Mbps, 2 x LAN or 1 x LAN + 1 x WAN |
|
Magnet Isolation Protection |
1.5 KV |
Serial Port
|
Serial Ports |
1 x RS-232 OR 1 x RS-485 (Hardware configuration) |
|
Connector |
3-pin 3.5 mm female socket |
|
Baud Rate |
300 bps ~ 115200 bps |
Wi-Fi
|
Wi-Fi Antennas |
2 (1 x external antenna + 1 x PCB antenna) |
|
Connector |
RP-SMA-K |
|
Standards |
802.11 b/g/n, supporting AP and Client modes |
|
Frequency Bands |
2.412 – 2.472 GHz (2.4 GHz ISM band) |
|
Security |
WEP, WPA, WPA2, WPA3 |
|
Encryption |
64/128 AES, TKIP |
Other Interfaces
|
Reset Button |
1 x RST |
|
LED Indicators |
1 x RUN, 1 x MDM, 1 x USR, 1 x RSSI, 1 x WLAN |
|
Watchdog |
Built-in |
Power Supply & Consumption
|
PSU Connector |
2-pin 3.5 mm female socket |
|
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/1.0 A power adapter |
Physical Characteristics
|
Ingress Protection |
IP30 |
|
Housing & Weight |
Plastic, 150g |
|
Dimensions |
31.5 x 91.5 x 91.5 mm |
|
Installation Options |
Desktop, Wall Mount and 35mm DIN Rail |
|
Operating Temperature |
-25 – +75 °C |
|
Storage Temperature |
-40 – +85 °C |
|
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 |
4MB |
|
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 |
|
R1511-4L-A02EU-A RS-232 |
4G LTE FDD: B1/3/7/8/20/28A 3G: B1/8 2G: B3/8 |
CE, UKCA, CB, SIRIM |
A006100720 |
1 x R1511 Router (B Code: B061701) |
|
R1511-4L-A02EU-A RS-232 |
4G LTE FDD: B1/3/7/8/20/28A 3G: B1/8 2G: B3/8 |
CE, UKCA, CB, SIRIM |
A006100721 |
1 x R1511 Router (B Code: B061701) 1 x DIN Rail Mounting Kit 1 x Cellular Antenna 1 x Wi-Fi Antenna 1 x Power Adapter |
|
R1511-4L-A02EU-B RS-485 |
4G LTE FDD: B1/3/7/8/20/28A 3G: B1/8 2G: B3/8 |
CE, UKCA, CB |
A006100722 |
1 x R1511 Router (B Code: B061702) |
|
R1511-4L-A02EU-B RS-485 |
4G LTE FDD: B1/3/7/8/20/28A 3G: B1/8 2G: B3/8 |
CE, UKCA, CB |
A006100723 |
1 x R1511 Router (B Code: B061702) 1 x DIN Rail Mounting Kit 1 x Cellular Antenna 1 x Wi-Fi Antenna 1 x Power Adapter |
|
R1511-4L-A03AU-A |
4G LTE FDD: B1/B2/B3/B4/B5/B7/B8/B28 4G LTE TDD: B40 3G: B1/B2/B5/B8 2G: B2/B3/B5/B8 |
RCM, Telstra |
A006100724 |
1 x R1510 Router (B Code: B061703) |
|
R1511-4L-A03AU-A |
4G LTE FDD: B1/B2/B3/B4/B5/B7/B8/B28 4G LTE TDD: B40 3G: B1/B2/B5/B8 2G: B2/B3/B5/B8 |
RCM, Telstra |
A006100725 |
1 x R1511 Router (B Code: B061703) 1 x DIN Rail Mounting Kit 1 x Cellular Antenna 1 x Wi-Fi Antenna 1 x Power Adapter |
|
R1511-4L-A03AU-B |
4G LTE FDD: B1/B2/B3/B4/B5/B7/B8/B28 4G LTE TDD: B40 3G: B1/B2/B5/B8 2G: B2/B3/B5/B8 |
RCM, Telstra |
A006100726 |
1 x R1511 Router (B Code: B061704) |
|
R1511-4L-A03AU-B |
4G LTE FDD: B1/B2/B3/B4/B5/B7/B8/B28 4G LTE TDD: B40 3G: B1/B2/B5/B8 2G: B2/B3/B5/B8 |
RCM, Telstra |
A006100725 |
1 x R1511 Router (B Code: B061704) 1 x DIN Rail Mounting Kit 1 x Cellular Antenna 1 x Wi-Fi Antenna 1 x Power Adapter |
|
R1511-4L-A04JP-A |
4G LTE FDD: B1/B3/B8/B18/B19/B26 4G LTE TDD: B41 3G: B1/B6/B8/B19 |
Telec, JATE |
A006100751 |
1 x R1511 Router (B Code: B006100743) |
|
R1511-4L-A04JP-A |
4G LTE FDD: B1/B3/B8/B18/B19/B26 4G LTE TDD: B41 3G: B1/B6/B8/B19 |
Telec, JATE |
A006100752 |
1 x R1511 Router (B Code: B006100743) 1 x DIN Rail Mounting Kit 1 x Cellular Antenna 1 x Wi-Fi Antenna 1 x Power Adapter |
|
R1511-4L-A04JP-B |
4G LTE FDD: B1/B3/B8/B18/B19/B26 4G LTE TDD: B41 3G: B1/B6/B8/B19 |
Telec, JATE |
A006100753 |
1 x R1511 Router (B Code: B006100744) |
|
R1511-4L-A04JP-B |
4G LTE FDD: B1/B3/B8/B18/B19/B26 4G LTE TDD: B41 3G: B1/B6/B8/B19 |
Telec, JATE |
A006100754 |
1 x R1511 Router (B Code: B006100744) 1 x DIN Rail Mounting Kit 1 x Cellular Antenna 1 x Wi-Fi Antenna 1 x Power Adapter |
NOTE:
1. For more information about regional & carrier specific variants please contact us
R1511 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
