The Ebyte E95-DTU(400F20-485) is a cost-effective industrial wireless data transmission radio operating in the 410 to 510MHz frequency band with 20dBm output power, 1km communication range, transparent RS485 interface, and rail-mounted plastic housing.
| Technical Parameter | E95-DTU(400F20-485) Specification | Remarks / Test Conditions |
|---|---|---|
| Operating Frequency Band | 410 to 510 MHz (Default 433 MHz) | Sub-GHz ISM license-free band |
| RF Transmitting Power | 20 dBm (100mW) | Optimized for cost-sensitive short-to-medium range |
| Max Communication Distance | 1 km | Open line of sight, clear environment |
| Communication Interface | Transparent RS485 Terminal | Direct industrial serial device connectivity |
| Physical Housing & Mounting | Plastic Shell, Guide Rail Installation | Standard 35mm DIN rail cabinet mounting |
| Dimensions & Weight | 92 x 67 x 30 mm, Weight: 95 +/- 5 g | Compact industrial form factor |
| No. | Term | Specification | Description |
|---|---|---|---|
| 1 | Size | 92*67*30 mm | Review installation dimensions for details |
| 2 | Weight | 95g | Weight tolerance 5g |
| 3 | Working Temperature | -40°C～+85°C | Meet the needs of industrial use |
| 4 | Voltage Range | 8～28V DC | Recommend to use 12V or 24V |
| 5 | Interface | RS-485 | 3.81 terminal block |
| 6 | Baud Rate | Default 9600 | Baud rate range 1200～115200 |
| 7 | Address Code | Default 0 | A total of 65536 address codes can be set |
Practical Application Scenarios
1. Smart Factory Workshop Equipment Data Acquisition
Modern manufacturing shop floors require continuous monitoring of production line machinery without running cumbersome physical wiring across high-interference industrial environments. System integrators deploy the Ebyte E95-DTU(400F20-485) inside local control enclosures, snapping it onto standard 35mm guide rails. The transparent RS485 interface connects directly to PLCs and CNC machines, wirelessly relaying real-time operational metrics back to the central supervisory station within a 1km operational radius.
2. Commercial Building HVAC Automated Control Networks
Centralized heating, ventilation, and air conditioning systems span multiple zones across large commercial facilities. Engineers utilize this cost-effective wireless data radio to eliminate complex serial cable deployment between floor controllers and air handling units. Operating in the 410-510MHz band with 20dBm output power, it provides stable serial packet transparency for Modbus protocol polling across adjacent building blocks.
3. Smart Street Lighting and Municipal Power Distribution Monitoring
Urban infrastructure upgrades often require localized telemetry reporting for streetlamp controllers and regional transformer sub-stations. The DTU's compact plastic shell and guide-rail mounting structure allow technicians to easily install the device inside outdoor electrical poles and junction boxes. It functions as an invisible wireless serial link, ensuring reliable command transmission for lighting schedules and power status updates.
FAQ Section
1. What does the transparent transmission mode mean for PLC and microcontroller integration?
Transparent transmission means the DTU acts as a direct wireless cable replacement. Any data byte frames fed into the RS485 serial port are modulated and transmitted over the air exactly as-is, meaning developers do not need to rewrite existing application software or implement custom packet framing protocols.
2. Why is the 410 to 510MHz frequency band advantageous for regional deployment?
The 410-510MHz range covers widely accepted global Sub-GHz ISM bands (such as the standard 433MHz frequency). This band provides excellent diffraction characteristics and wall-penetrating capabilities compared to high-frequency 2.4GHz waves, making it ideal for semi-obstructed industrial and urban deployments.
3. How does the guide rail installation structure benefit control cabinet layout?
The integrated 35mm DIN rail mounting design enables technicians to snap the DTU directly onto standard electrical cabinet mounting rails alongside circuit breakers and power supplies. This standardizes panel assembly, saves valuable internal enclosure space, and ensures neat, vibration-resistant wiring.
