1. انتهى المنتجview
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.
الشكل 1: الجبهة 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. الميزات الرئيسية
- Advanced LoRa Modulation: Utilizes military-grade LoRa modulation technology for enhanced communication distance and stability.
- انتاج طاقة عالية: 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.
- تصميم قوي: All-aluminum alloy shell for compact size, easy installation, good heat dissipation, and excellent electromagnetic compatibility.
- تعزيز الموثوقية: Features power reverse connection protection, over-connection protection, and antenna surge protection.
- مصدر طاقة مرن: 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.
- معلمات شكلي: All parameters such as power, frequency, air speed, and address ID can be set via programming software.
- استهلاك منخفض للطاقة: 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. انتهت الأجهزةview
The E90-DTU-433L30 features clearly labeled interfaces and indicators for easy setup and monitoring.
الشكل 2: مفصل view of the transceiver's hardware components, including Antenna Interface, Dip Switch, Power Interface, Function Indicators (PWR, TXD, RXD), RS485 terminals, and RS232 port.
- واجهة الهوائي: 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.
- مؤشرات الوظيفة:
- PWR: مؤشر الطاقة.
- تكسد: Transmit data indicator.
- آر إكس دي: Receive data indicator.
- واجهة RS485: Screw terminals for RS485_A, RS485_B, GND, and VCC connections.
- واجهة RS232: 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. الإعداد الأولي
- توصيل الهوائي: Securely attach the 433MHz antenna to the SMA-K connector.
- توصيل الطاقة: Connect a 10-28V DC power supply to the DC-IN port. Ensure correct polarity.
- اتصال واجهة البيانات:
- 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.
- Mode Configuration: 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. تكوين البرامج
The E90-DTU-433L30 supports software configuration for various parameters, including frequency, air speed, and address ID.
الشكل 4: مثالample interface of the Function Configuration Software, available for download from the official webموقع.
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. التشغيل
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.
- نقل البيانات: When data is received on the serial input (RS232/RS485), the module automatically modulates and transmits it wirelessly. The TXD indicator will flash.
- استقبال البيانات: Upon receiving wireless data, the module demodulates it and outputs it through the serial interface. The RXD indicator will flash.
- إدارة الوضع: Ensure both transmitting and receiving modules are set to compatible operating modes (e.g., transparent transmission mode) for seamless communication.
6. المواصفات الفنية
| مواصفة | قيمة |
|---|---|
| ASIN | B07R51G2CD |
| رقم موديل السلعة | RS232 |
| ماركة | ايبايت |
| إجمالي منافذ إيثرنت | 2 |
| عدد المنافذ | 2 |
| Maximum Upstream Data Transfer Rate | 433 ميجا هرتز |
| نوع المودم | رقمي |
| الشركة المصنعة | ايبايت |
| تاريخ أول توفر | 27 سبتمبر 2021 |
Figure 5: Physical dimensions of the E90-DTU-433L30 module, approximately 82mm in length and 62mm in width.
7. تطبيقات نموذجية
The E90-DTU-433L30 is suitable for a wide range of applications requiring reliable wireless data transmission.
الشكل 6: مثالamples of application environments: Smart home, Agricultural application, Intelligent warehouse, Industrial applications, Device management, and general Wireless data transmission.
- أنظمة المنزل الذكي
- Agricultural Monitoring and Control
- Intelligent Warehouse Management
- الأتمتة الصناعية والتحكم
- إدارة الجهاز عن بعد
- General Wireless Data Transmission
8. الصيانة
To ensure the longevity and optimal performance of your E90-DTU-433L30 transceiver, follow these maintenance guidelines:
- حافظ على نظافة: Regularly clean the exterior of the module with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
- الظروف البيئية: Operate the module within its specified temperature and humidity ranges. Avoid exposure to extreme temperatures, direct sunlight, or high moisture.
- اتصالات آمنة: Periodically check all cable connections (power, serial, antenna) to ensure they are secure and free from damage.
- تحديثات البرامج الثابتة: تحقق من الشركة المصنعة website for any available firmware updates that may improve performance or address issues.
- التعامل السليم: Handle the module with care to prevent physical damage. Avoid dropping or subjecting it to strong vibrations.
9. استكشاف الأخطاء وإصلاحها
If you encounter issues with your E90-DTU-433L30, consider the following troubleshooting steps:
- لا يوجد طاقة:
- التحقق من مستوى الطاقةtagيقع e ضمن نطاق 10-28 فولت تيار مستمر.
- Check power cable connections and ensure they are secure and correctly polarized.
- Confirm the power outlet or source is functional.
- لا اتصال:
- 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.
- اتصال متقطع:
- تحقق من وجود مصادر للتداخل الكهرومغناطيسي (EMI) بالقرب من الوحدات.
- تأكد من أن مصدر الطاقة مستقر وخالٍ من التقلبات.
- Verify antenna integrity and placement.
- Module Not Responding to Software:
- Ensure the module is in configuration mode (check M0/M1 settings).
- Verify the correct COM port is selected in the software.
- Check the serial cable and drivers on your computer.
10. الدعم والموارد
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
- الشركة المصنعة: ايبايت
- رسمي Webموقع: Visit the EBYTE official website for the latest product information, drivers, and software.
11. معلومات الضمان
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.
