1. Продукт закончилсяview
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.
Рисунок 1: Передняя часть 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.Основные характеристики
- Расширенная модуляция LoRa: Utilizes military-grade LoRa modulation technology for enhanced communication distance and stability.
- Выходная мощность высокой мощности: Мощность передачи до 1 Вт, с многоуровневой регулировкой настроек, соответствующая европейским промышленным стандартам.
- Широкая поддержка интерфейсов: Обеспечивает прозрачные интерфейсы RS232 и RS485 для универсального подключения.
- Прочная конструкция: All-aluminum alloy shell for compact size, easy installation, good heat dissipation, and excellent electromagnetic compatibility.
- Повышенная надежность: Features power reverse connection protection, over-connection protection, and antenna surge protection.
- Гибкий источник питания: 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.
- Настраиваемые параметры: All parameters such as power, frequency, air speed, and address ID can be set via programming software.
- Низкое энергопотребление: 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. Аппаратное обеспечение большеview
The E90-DTU-433L30 features clearly labeled interfaces and indicators for easy setup and monitoring.
Рисунок 2: Подробная информация view of the transceiver's hardware components, including Antenna Interface, Dip Switch, Power Interface, Function Indicators (PWR, TXD, RXD), RS485 terminals, and RS232 port.
- Антенный интерфейс: 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.
- Индикаторы функций:
- мощность: Индикатор питания.
- ТСД: Transmit data indicator.
- ПРД: Receive data indicator.
- Интерфейс RS485: Screw terminals for RS485_A, RS485_B, GND, and VCC connections.
- Интерфейс 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. Начальная настройка
- Подключить антенну: Securely attach the 433MHz antenna to the SMA-K connector.
- Подключение питания: Connect a 10-28V DC power supply to the DC-IN port. Ensure correct polarity.
- Интерфейсное соединение данных:
- 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.
- Настройка режима: 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. Конфигурация программного обеспечения
The E90-DTU-433L30 supports software configuration for various parameters, including frequency, air speed, and address ID.
Рисунок 4: Example interface of the Function Configuration Software, available for download from the official webсайт.
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. Операция
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.
- Передача данных: When data is received on the serial input (RS232/RS485), the module automatically modulates and transmits it wirelessly. The TXD indicator will flash.
- Прием данных: Upon receiving wireless data, the module demodulates it and outputs it through the serial interface. The RXD indicator will flash.
- Управление режимами: Ensure both transmitting and receiving modules are set to compatible operating modes (e.g., transparent transmission mode) for seamless communication.
6. Технические характеристики
| Спецификация | Ценить |
|---|---|
| ASIN | B07R51G2CD |
| Номер модели товара | RS232 |
| Бренд | ЭБАЙТ |
| Общее количество портов Ethernet | 2 |
| Количество портов | 2 |
| Максимальная скорость передачи данных в восходящем направлении | 433 МГц |
| Тип модема | Цифровой |
| Производитель | ЭБАЙТ |
| Дата первой доступности | 27 сентября 2021 г. |
Figure 5: Physical dimensions of the E90-DTU-433L30 module, approximately 82mm in length and 62mm in width.
7. Типичные приложения
The E90-DTU-433L30 is suitable for a wide range of applications requiring reliable wireless data transmission.
Рисунок 6: Examples of application environments: Smart home, Agricultural application, Intelligent warehouse, Industrial applications, Device management, and general Wireless data transmission.
- Системы Умного Дома
- Agricultural Monitoring and Control
- Intelligent Warehouse Management
- Промышленная автоматизация и управление
- Удаленное управление устройствами
- General Wireless Data Transmission
8. Техническое обслуживание
To ensure the longevity and optimal performance of your E90-DTU-433L30 transceiver, follow these maintenance guidelines:
- Содержать в чистоте: Regularly clean the exterior of the module with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
- Условия окружающей среды: Эксплуатируйте модуль в пределах указанного диапазона температуры и влажности. Избегайте воздействия экстремальных температур, прямых солнечных лучей и высокой влажности.
- Безопасные соединения: Periodically check all cable connections (power, serial, antenna) to ensure they are secure and free from damage.
- Обновления прошивки: Проверьте производителя webНа этом сайте можно найти все доступные обновления прошивки, которые могут улучшить производительность или устранить проблемы.
- Правильное обращение: Handle the module with care to prevent physical damage. Avoid dropping or subjecting it to strong vibrations.
9. Поиск Неисправностей
If you encounter issues with your E90-DTU-433L30, consider the following troubleshooting steps:
- Нет питания:
- Проверьте уровень напряжения питания.tage находится в диапазоне постоянного тока 10–28 В.
- Check power cable connections and ensure they are secure and correctly polarized.
- Confirm the power outlet or source is functional.
- Нет связи:
- 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.
- Прерывистая связь:
- Проверьте наличие источников электромагнитных помех (ЭМП) вблизи модулей.
- Убедитесь, что электропитание стабильно и без колебаний.
- Verify antenna integrity and placement.
- Module Not Responding to Software:
- Ensure the module is in configuration mode (check M0/M1 settings).
- Убедитесь, что в программе выбран правильный COM-порт.
- Check the serial cable and drivers on your computer.
10 Поддержка и ресурсы
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
- Производитель: ЭБАЙТ
- Официально Webсайт: Visit the EBYTE official website for the latest product information, drivers, and software.
11. Информация о гарантии
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.
