The Ebyte E860-DTU-V2 series DIN rail LoRa wireless IO switch DTU covers 1/2/4/8 DI-DO channel SKUs with 22dBm (5km) / 30dBm (10km) 868-915MHz LoRa power options, supporting 1-to-1 / 1-to-many / many-to-many synchronous dry contact signal transmission, 300ms ultra-fast response, dual hardware watchdog, DC 8–28V wide power, triple-proof PCB coating, -40 to 85 Celsius industrial range, key-pair encrypted multi-group independent communication for remote industrial interlock control without field wiring.
| Model Number | DI/DO Channel | Tx Power | Max LoS Distance | Dimension (mm) | Net Weight |
|---|---|---|---|---|---|
| E860-DTU(1010-900SL22)-V2 | 1 Input / 1 Output | 22dBm | 5000m | 113*37*65 | 77g |
| E860-DTU(2020-900SL22)-V2 | 2 Input / 2 Output | 22dBm | 5000m | 113*52*65 | 102g |
| E860-DTU(4040-900SL22)-V2 | 4 Input / 4 Output | 22dBm | 5000m | 113*72*65 | 152g |
| E860-DTU(8080-900SL22)-V2 | 8 Input / 8 Output | 22dBm | 5000m | 113*107*65 | 192g |
| E860-DTU(2020-900SL30)-V2 | 2 Input / 2 Output | 30dBm | 10000m | 113*52*65 | 102g |
| E860-DTU(4040-900SL30)-V2 | 4 Input / 4 Output | 30dBm | 10000m | 113*72*65 | 152g |
| E860-DTU(8080-900SL30)-V2 | 8 Input / 8 Output | 30dBm | 10000m | 113*107*65 |
192g |
| Universal Core Parameters (All SKUs) | |||||
| RF Frequency Band | 868MHz ~ 915MHz ISM LoRa band, 83 independent communication groups | ||||
| Signal Response Latency | Max 300ms fast synchronous transmission | ||||
| Supported Working Modes | 1-to-1 / 1-to-many (max 200 slaves) / many-to-1 / multi-pair independent groups | ||||
| DI Input Type | Dry contact / NPN open collector signal | ||||
| DO Relay Spec | 10A 250VAC / 7A 30VDC mechanical relay | ||||
| Supply Voltage | 8V DC ~ 28V DC anti-reverse / overvoltage / overcurrent protection | ||||
| Mounting Standard | 35mm standard DIN rail snap-on housing | ||||
| Environmental Range | -40 Celsius ~ 85 Celsius, 5% ~ 95% non-condensing RH, triple-proof PCB coating | ||||
| System Protection | Hardware + software dual watchdog, auto signal resync after wireless disconnection | ||||
Practical Application Scenarios
1. Factory Assembly Line Remote Equipment Interlock Control
European automation system integrators deploy E860-DTU-V2 series LoRa IO DTUs across multi-story production workshops to realize wireless interlock of conveyor belts, press machines and safety emergency stop buttons. 30dBm 10km long-distance model covers large factory zones without cable trenching, 300ms low-latency synchronous relay output ensures instant safety interlock trigger, and 8-channel high-capacity SKU matches multi-station linkage demands. It can cooperate with ME31 thermocouple acquisition modules to combine temperature monitoring and equipment wireless interlock into one industrial wireless system.
2. Urban Municipal Pump Station & Water Gate Remote Control
Overseas hydraulic engineering contractors install DIN rail E860-DTU inside distributed pump room control cabinets to wirelessly transmit water level float switch DI signals and remotely control water gate valve DO relays. LoRa long-wave signal penetrates underground pipeline walls and building barriers, 1-to-many mode enables one master unit to control up to 200 scattered pump stations, and triple-proof conformal coating resists damp underground pump house corrosive vapor year-round unattended operation.
3. Large Solar Farm Array Fault Alarm & Remote Switch
Global new energy power plant operators adopt E860-DTU-V2 LoRa IO radio for photovoltaic combiner box fault dry contact signals and remote breaker control. Wide -40 to 85 Celsius temperature tolerates extreme cold winter and high-temperature summer outdoor power stations, independent 83 encrypted LoRa channels avoid signal conflict between adjacent solar arrays, and dual watchdog prevents wireless disconnection from losing fault alarm interlock signals.
4. Mining Tunnel Safety Alarm & Ventilation Fan Remote Regulation
Mining safety engineering teams use E860-DTU 4/8-channel models to collect underground gas detector dry contact alarm signals and wirelessly control surface ventilation fans. Low-frequency 900MHz LoRa wave achieves stable signal diffraction through rock tunnel barriers, DC 8–28V wide input adapts unstable mining field power supply, and auto status resync function recovers alarm linkage automatically after temporary RF signal loss.
5. Agricultural Large Greenhouse Water & Shade Curtain Wireless Control
International agritech OEMs equip greenhouse control cabinets with E860-DTU 22dBm 5km low-power versions to transmit soil humidity sensor switch signals and remotely open/close sunshade and irrigation valves. Compact DIN rail housing fits small greenhouse electrical boxes, many-to-many networking supports cross-greenhouse unified linkage management, and industrial anti-mold coating adapts high-humidity crop planting environments without frequent equipment maintenance.
FAQ Section
1. What four network working modes does E860-DTU-V2 LoRa IO DTU support?
This series industrial wireless switch radio supports four independent transmission topologies: 1-to-1 point-to-point control, 1 master to max 200 slave one-to-many broadcast, many slaves to single master collection, and multiple independent paired groups. Each group uses separate encrypted LoRa channels to eliminate cross-group signal interference in multi-equipment industrial parks.
2. What is the difference between 22dBm and 30dBm power versions of the same channel SKU?
The 22dBm model reaches 5km open LoS range with lower average power consumption, suitable indoor factory and short-distance greenhouse scenarios; the 30dBm high-power variant extends max communication distance to 10km for wide-area solar farms, mountain water conservancy and mining tunnels with terrain barriers, both share identical DI/DO relay hardware specifications.
3. Does E860-DTU-V support automatic signal state recovery after wireless disconnection?
Yes, the built-in communication self-diagnosis program monitors RF link status in real time. Once temporary signal loss occurs due to obstacles or electromagnetic noise, the device will automatically re-link and synchronize all DI input & DO relay output states without manual reset or field staff operation.
4. What type of input signal can the DI dry contact terminal of E860-DTU receive?
The digital input terminals only accept passive dry contact switch signals and NPN open collector transistor signals. Active PNP sensor outputs cannot be directly connected; users need to add signal conversion circuits if matching PNP proximity sensors to avoid module internal circuit burnout.
5. Can multiple E860-DTU independent groups run simultaneously without crosstalk?
The LoRa platform reserves 83 mutually independent communication frequency groups with exclusive encryption keys for each group. Different project equipment sets can use separate channel groups, so wireless trigger signals from one control system will not mistakenly activate relay outputs of other unrelated industrial control networks.
