Robustel R1511e
Compact Industrial 4G/LTE eSIM/eUICC Router with 2 x LAN Ports + Serial RS232 or RS485
The Robustel R1511e is a compact industrial LTE router designed to connect both Ethernet and serial equipment using fully embedded eSIM/eUICC – with no physical SIM slots to manage. Its built-in eUICC lets you remotely download, activate and switch operator profiles over the air, so you can adapt coverage, roaming and tariffs without visiting site or swapping plastic SIMs.
Two Fast-Ethernet ports (configurable as LAN/WAN or dual LAN) plus a hardware option for RS-232 or RS-485 enable direct connectivity for PLCs, meters and legacy controllers. A built-in Modbus RTU→TCP gateway and transparent TCP/UDP modes simplify serial-to-IP integration without changing upstream applications, while 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, updates and SIM profile management at range, while RobustVPN provides a fixed-IP service on any eSIM profile for straightforward remote access.
eSIM/eUICC Support
4G/LTE, 3G & 2G Cellular
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 R1511e 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 |
1x eSIM/eUICC |
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 |
|
R1511e |
Ordering Information Coming Soon |
Ordering Information Coming Soon |
Ordering Information Coming Soon |
Ordering Information Coming Soon |
NOTE:
1. For more information about regional & carrier specific variants please contact us
R1511e 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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