DFRobot
DFRobot DFR1120-868 LoRaWAN Control Terminal - EU868, RS485, 4km
· MPN: DFR1120-868
Build remote monitoring and control systems around a single DIN-rail RTU for EU868 LoRaWAN networks. This 868MHz control terminal is designed for industrial ...
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Build remote monitoring and control systems around a single DIN-rail RTU for EU868 LoRaWAN networks. This 868MHz control terminal is designed for industrial IoT, smart agriculture, building automation and environmental monitoring where long-range wireless telemetry and local device control are needed.
It brings data acquisition, logic processing and actuation into one enclosure. Field devices can connect via RS485 Modbus RTU, a 0-10V analogue input, two optocoupler-isolated digital inputs and a normally open relay output for switching actuators such as pumps, valves, alarms or lighting.
Local rules can be configured through a visual interface so the unit can keep running preset logic even if the LoRaWAN network connection is lost. It is intended for use with private LoRaWAN gateways or public networks such as The Things Network (TTN), and DFRobot provides a product wiki for configuration support.
Features:
- Stable Long-Range Communication: Standard LoRaWAN connectivity for private gateways and public infrastructure such as The Things Network (TTN).
- 868MHz operation: Suitable for Europe and other ITU Region 1 areas.
- Open-environment range: Transmission ranges reaching up to 4km in open environments.
- Collection: RS485 interface for Modbus RTU sensors, 0-10V analogue input and two optocoupler-isolated digital inputs.
- Control: Built-in Relay Output (24VDC/220VAC 3A) for switching pumps, valves, alarms or lighting systems.
- Edge Logic and Offline Autonomy: Preset local logic rules through a visual configuration interface, such as moisture-based relay control.
- Offline operation: Continues executing preset logic commands if the LoRaWAN network connection is lost.
- Seamless Integration with RS485 Sensors: Pre-validated with a wide range of DFRobot industrial RS485 sensors.
- Smart Agriculture: Supports systems using soil temperature and moisture, EC, pH and NPK sensors.
- Weather Monitoring: Supports ultrasonic weather stations, wind speed/direction and rain gauge monitoring.
- Water Quality: Supports dissolved oxygen sensors for freshwater/seawater applications.
- Environmental: Supports solar radiation, UV and ambient light sensors.
- DIN-rail mountable: Designed as a DIN-rail mountable unit for field installations.
Specifications:
- Input Voltage: 12-24V DC
- Operating temperature: -10~60℃
- Product Dimensions: 89x53x24mm (excluding terminals and mounting parts)
- RS485 x1: Modbus RTU Protocol
- AI x1: 0-10V Analog Input
- DI x2: Optocoupler isolated input, 5-24V
- Relay output (normally open) x1: Touchpoint switching parameters 24VDC 3A/220VAC 3A
- Operating frequency band: 863~870MHz
- Transmit Power: 16dBm
- Receive Sensitivity: -137dBm/125kHz SF=12
- Working Mode: OTAA/ABP Class A/C
- Certifications: CE, RoHS
Included in the box: LoRaWAN Control Terminal (868MHz) x1, Rubber Antenna x1, Mounting Lugs x2, DIN Rail Clips x2, M4*6 Mounting Screws x4, Plug-in Terminal (2P) x2 and Plug-in Terminal (4P) x2.
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Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- DIN
- As a pin label, DIN stands for 'data in', the input through which a device receives serial data from a controller, as found on SPI displays, LED drivers and other serial modules. DIN can also refer to the German standards body of that name, as in a round multi-pin DIN connector or DIN-rail mounting.
- DIN rail
- DIN rail is a standard metal mounting rail used inside industrial electrical cabinets. When a product is DIN rail mountable, it can be clipped neatly alongside power supplies, relays and other automation hardware in a panel.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- Modbus
- Modbus is an industrial communication protocol used by many meters, sensors, PLCs and automation devices. When a product lists Modbus support, it is generally easier to integrate with existing industrial equipment that speaks the same protocol.
- Modbus RTU
- Modbus RTU is a version of the Modbus protocol that runs over serial wiring, commonly RS485. When a product lists Modbus RTU, it can connect to industrial sensors, meters or drives that use serial Modbus rather than Ethernet.
- pH
- A measure of how acidic or alkaline a liquid is, on a scale where 7 is neutral. For a water monitoring kit, pH tells you about water chemistry and whether the included probe matches the range and accuracy your project needs.
- RS485
- RS485 is a robust differential serial communication standard often used in factories, farms and buildings where cables may be long or electrically noisy, and it can link many devices on a single pair of wires. When a product lists RS485, it can communicate with industrial sensors, meters and control equipment over longer distances than typical hobby serial wiring.
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