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Robustel R1511
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Robustel R1511

Overview

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.

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Description

Robustel R1511

Compact Industrial 4G/LTE Router with Serial

Key Features

  • Cellular — 4G/LTE, 3G & 2G.
  • Wi-Fi — 11 b/g/n, supporting AP and Client modes.
  • Interfaces — 1× WAN, 1× LAN or 2× LAN, 1× RS-232 or RS-485.
  • Operating System — RobustOS – Lightweight Linux kernel with full SDK.
  • RCMS On-Board — RCMS Cloud device management enabled.

Example 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.

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