1. 제품 오버view
The E90-DTU-433L30 is a high-performance wireless data transceiver designed for reliable long-range communication. Operating within the 410-441MHz frequency range with a power output of 30dBm, it can achieve communication distances up to 8.0km. This device integrates digital data processing, modulation, demodulation, and error correction (FEC) to provide a transparent RS232/RS485 interface, distinguishing it from traditional analog FM transceivers.
그림 1: 전면 view of the E90-DTU-433L30 Wireless Transceiver, showing RS232, RS485, GND, VCC ports, PWR, TXD, RXD indicators, M0, M1 pins, DC-IN, and antenna connector.
2. 주요 특징
- Advanced LoRa Modulation: Utilizes military-grade LoRa modulation technology for enhanced communication distance and stability.
- 고성능 출력: Transmission power up to 1W, with multi-level adjustable settings, meeting European industrial standards.
- Wide Interface Support: Provides transparent RS232 and RS485 interfaces for versatile connectivity.
- 견고한 디자인: All-aluminum alloy shell for compact size, easy installation, good heat dissipation, and excellent electromagnetic compatibility.
- 향상된 신뢰성: Features power reverse connection protection, over-connection protection, and antenna surge protection.
- 유연한 전원 공급 장치: Supports 10-28V power supply, compatible with various power devices or line pressure modes.
- Precise Frequency Stability: Incorporates temperature compensators for frequency stability better than ±1.5PPM.
- 구성 가능한 매개변수: All parameters such as power, frequency, air speed, and address ID can be set via programming software.
- 낮은 전력 소모: Standby current is only 21mA (even lower in power-saving and sleep modes).
- Built-in Watchdog: Ensures automatic module restart in case of exceptions, maintaining continuous operation with previous settings.
3. 하드웨어 오버view
The E90-DTU-433L30 features clearly labeled interfaces and indicators for easy setup and monitoring.
그림 2: 상세 view of the transceiver's hardware components, including Antenna Interface, Dip Switch, Power Interface, Function Indicators (PWR, TXD, RXD), RS485 terminals, and RS232 port.
- 안테나 인터페이스: SMA-K connector for external antenna connection.
- Dip Switch (M0, M1): Used to set the module's operating mode (e.g., normal, wake-up, power-saving, configuration).
- Power Interface (DC-IN): Input for 10-28V DC power supply.
- 기능 표시기:
- PWR : 전원 표시등.
- 송신: Transmit data indicator.
- RXD: Receive data indicator.
- RS485 인터페이스: Screw terminals for RS485_A, RS485_B, GND, and VCC connections.
- RS232 인터페이스: DB9 serial port for RS232 communication.
4. Setup and Basic Function
The E90-DTU-433L30 facilitates transparent data transmission between devices using RS232 or RS485 interfaces.
Figure 3: Diagram illustrating typical connections: a PC connected to one DTU via RS232/RS485, and another DTU connected to a serial device via RS232/RS485, communicating wirelessly.
4.1. 초기 설정
- 안테나 연결: Securely attach the 433MHz antenna to the SMA-K connector.
- 전원 연결: Connect a 10-28V DC power supply to the DC-IN port. Ensure correct polarity.
- 데이터 인터페이스 연결:
- For RS232: Connect your device (e.g., PC) to the DB9 RS232 port using a serial cable.
- For RS485: Connect your device to the RS485_A and RS485_B terminals. Ensure proper A/B wiring.
- 모드 구성: Set the M0 and M1 dip switches according to your desired operating mode (e.g., transparent transmission, configuration mode). Refer to the detailed technical manual for specific mode settings.
4.2. 소프트웨어 구성
The E90-DTU-433L30 supports software configuration for various parameters, including frequency, air speed, and address ID.
그림 4: 예ample interface of the Function Configuration Software, available for download from the official web대지.
It is recommended to download and use the official configuration software to customize the module's settings to match your application requirements. This software allows for precise control over the transceiver's operational parameters.
5. 운영
Once properly configured and connected, the E90-DTU-433L30 operates as a transparent data link. Data sent to its RS232 or RS485 port will be wirelessly transmitted to a paired E90-DTU module, and vice-versa.
- 데이터 전송: When data is received on the serial input (RS232/RS485), the module automatically modulates and transmits it wirelessly. The TXD indicator will flash.
- 데이터 수신: Upon receiving wireless data, the module demodulates it and outputs it through the serial interface. The RXD indicator will flash.
- 모드 관리: Ensure both transmitting and receiving modules are set to compatible operating modes (e.g., transparent transmission mode) for seamless communication.
6. 기술 사양
| 사양 | 값 |
|---|---|
| ASIN | B07R51G2CD |
| 품목 모델 번호 | RS232 |
| 상표 | 이바이트 |
| 총 이더넷 포트 | 2 |
| 포트 수 | 2 |
| Maximum Upstream Data Transfer Rate | 433MHz |
| 모뎀 유형 | 디지털 |
| 제조업체 | 이바이트 |
| 첫 번째 이용 가능 날짜 | 27년 2021월 XNUMX일 |
Figure 5: Physical dimensions of the E90-DTU-433L30 module, approximately 82mm in length and 62mm in width.
7. 일반적인 응용
The E90-DTU-433L30 is suitable for a wide range of applications requiring reliable wireless data transmission.
그림 6: 예amples of application environments: Smart home, Agricultural application, Intelligent warehouse, Industrial applications, Device management, and general Wireless data transmission.
- 스마트 홈 시스템
- Agricultural Monitoring and Control
- Intelligent Warehouse Management
- 산업 자동화 및 제어
- 원격 장치 관리
- General Wireless Data Transmission
8. 유지관리
To ensure the longevity and optimal performance of your E90-DTU-433L30 transceiver, follow these maintenance guidelines:
- 깨끗하게 유지하십시오: 모듈 외부를 부드럽고 마른 천으로 정기적으로 닦아주십시오. 강한 화학 약품이나 연마제를 사용하지 마십시오.
- 환경 조건: Operate the module within its specified temperature and humidity ranges. Avoid exposure to extreme temperatures, direct sunlight, or high moisture.
- 보안 연결: Periodically check all cable connections (power, serial, antenna) to ensure they are secure and free from damage.
- 펌웨어 업데이트: 제조사 확인해보세요 web성능 향상이나 문제 해결에 도움이 될 수 있는 펌웨어 업데이트가 있는지 해당 사이트를 확인하십시오.
- 적절한 취급: Handle the module with care to prevent physical damage. Avoid dropping or subjecting it to strong vibrations.
9. 문제 해결
If you encounter issues with your E90-DTU-433L30, consider the following troubleshooting steps:
- 전원 없음:
- 전원 공급 볼륨을 확인하세요tage는 10~28V DC 범위 내에 있습니다.
- Check power cable connections and ensure they are secure and correctly polarized.
- Confirm the power outlet or source is functional.
- 통신 없음:
- Ensure both transmitting and receiving modules are powered on and their PWR indicators are lit.
- Check serial cable connections (RS232/RS485) for proper wiring and secure fit.
- Verify that the M0 and M1 dip switch settings on both modules are identical and configured for the desired operating mode (e.g., transparent transmission).
- Confirm that the frequency, air speed, and address ID settings are consistent across all communicating modules using the configuration software.
- Check antenna connections and ensure antennas are properly installed and not obstructed.
- Reduce the distance between modules or remove obstacles if communication range is an issue.
- 간헐적 의사소통:
- Check for sources of electromagnetic interference (EMI) near the modules.
- 전력 공급이 안정적이고 변동이 없는지 확인하세요.
- Verify antenna integrity and placement.
- Module Not Responding to Software:
- Ensure the module is in configuration mode (check M0/M1 settings).
- 소프트웨어에서 올바른 COM 포트가 선택되었는지 확인하십시오.
- Check the serial cable and drivers on your computer.
10. 지원 및 리소스
For detailed technical documentation, software downloads, and further support, please refer to the official EBYTE resources:
- Technical Manual Support: http://www.ebyte.com/en/product-view-news.aspx?id=418
- 제조업체: 이바이트
- 공식적인 Web대지: Visit the EBYTE official website for the latest product information, drivers, and software.
11. 보증 정보
Specific warranty terms and conditions for the E90-DTU-433L30 Wireless Transceiver are typically provided at the point of purchase or can be found on the official EBYTE website. Please retain your proof of purchase for any warranty claims. For detailed warranty policy, please consult the manufacturer's official documentation or contact EBYTE customer support directly.
