Milesight IoT Controller UC502-868M-EA LoRaWAN – RS-485 – RS-232

In industrial automation, remote monitoring, or building management, the Milesight UC502-868M-EA serves as a LoRaWAN IoT controller with RS-485 and RS-232 serial interfaces. It enables data acquisition from wired sensors and actuators and transmits it over LoRaWAN networks.

Key specifications

• Wireless Technology: LoRaWAN
• LoRaWAN Frequency Band: 868 MHz (EU868)
• LoRaWAN Class: Class C
• Serial Ports: 1x RS-232, 1x RS-485
• Digital Inputs (DI): 2 (Dry Contact)
• Digital Outputs (DO): 2 (Relay, Max 30V/1A)
• Analog Inputs (AI): 2 (0-10V / 4-20mA, configurable)
• Power Input: 9-24 VDC
• Power Consumption: < 1.5 W (Typical)
• Operating Temperature: -40°C to +70°C
• Enclosure Rating: IP30
• Mounting Options: Wall, DIN Rail
• Antenna Connector: 1x N-Female (for LoRaWAN)
• Configuration Interface: USB Type-C
• Supported Protocols: Modbus RTU, LoRaWAN
• Local Storage: Up to 10,000 data records
• Built-in Features: Watchdog, Real-Time Clock (RTC)
• Housing Material: PC + ABS

Why choose it

This controller bridges legacy wired devices to LoRaWAN networks, enabling long-range, low-power connectivity for industrial IoT applications. Its Class C operation ensures low latency for downlink messages, and the wide operating temperature range suits harsh environments.

Ideal use cases

• Remote monitoring of sensors and meters via RS-485/RS-232
• Industrial automation and control systems
• Building management and energy monitoring
• Smart agriculture and environmental sensing

Good to know

The UC502-868M-EA supports Modbus RTU protocol, allowing integration with existing Modbus devices. Local storage of up to 10,000 records ensures data buffering during network outages. Configuration is done via USB Type-C interface.