1. Pengenalan
The EBYTE E34-DTU-2G4D20 is a robust 100mW wireless data transceiver operating in the 2.4GHz to 2.518GHz frequency band. It facilitates data transmission and reception via RS232 and RS485 serial ports, simplifying wireless application integration. This module is engineered for high-speed, full-duplex communication, supporting simultaneous bidirectional data flow and file transfers. It features data encryption and compression to enhance security and transmission efficiency. Designed for industrial environments, the E34-DTU-2G4D20 operates within a wide voltage range of 8V to 28V and adheres to international design specifications including FCC, CE, and CCC.
Rajah 1: Depan view of the EBYTE E34-DTU-2G4D20 wireless data transceiver, showing RS232, RS485, DC-IN, and antenna ports.
2. Ciri-ciri Utama
- Reliable nRF24L01P+ Chip: Utilizes original nRF24L01P+ chips for enhanced reliability and performance.
- Prestasi Tinggi: Features 100mW (20dBm) transmit power, meeting European industrial standards.
- Industrial Grade Durability: Equipped with temperature compensators for frequency stability (±1.5PPM) and an operating temperature range of -40℃ to +85℃.
- Reka Bentuk Teguh: Housed in an aluminum alloy case for excellent heat dissipation, shielding, electromagnetic compatibility, and strong anti-interference capabilities.
- Ciri-ciri perlindungan: Includes power reverse, overload protection, and antenna surge protection to improve system reliability.
- Parameter Boleh Dikonfigurasikan: Allows programming of parameters such as transmit power, frequency, air data rate, and address.
- Komunikasi Dupleks Penuh: Supports simultaneous bidirectional data transmission at high baud rates.
- Keselamatan Data: Incorporates data encryption and compression for secure and efficient data transfer.
Rajah 2: bersudut view of the E34-DTU-2G4D20, highlighting its compact design and robust casing.
3. Spesifikasi Teknikal
| Parameter | Nilai |
|---|---|
| Julat Kekerapan | 2.4 GHz hingga 2.505 GHz |
| Menghantar Kuasa | 20 dBm (100 mW) |
| Jarak Penghantaran | Sehingga 2.0 km (garis penglihatan) |
| Antara muka | RS232 / RS485 |
| Bekalan Voltage | 8V hingga 28V DC |
| Suhu Operasi | -40 ℃ hingga + 85 ℃ |
| Kestabilan Frekuensi | ±1.5 PPM |
| Pengeluar | EBYTE |
| Model | E34-DTU-2G4D20 |
Rajah 3: Physical dimensions of the E34-DTU-2G4D20 module.
4. Persediaan dan Pemasangan
Follow these steps to set up your E34-DTU-2G4D20 wireless transceiver:
- Connect Data Interface: Connect the E34-DTU-2G4D20 to your PC, PLC, or RTU using either the RS232 or RS485 interface. Ensure proper wiring for the selected serial communication standard.
- Pasang Antena: Connect a 50Ω antenna or a dummy load to the ANT port on the transceiver. A suitable antenna is crucial for optimal wireless performance.
- Bekalan Kuasa: Provide power to the module via the DC-IN port. The module accepts a voltage range of 10V to 28V DC. You can use a regulated power supply or a compatible power adapter.
- Pemasangan Pemandu (jika perlu): If connecting to a PC, download and install the necessary drivers from the EBYTE official website to ensure proper recognition of the serial port.
- Initial Testing (Optional): For quick verification of functionality, use a serial port debugging assistant software.
- Download and install a serial port debugging assistant.
- Connect the radio, antenna, and power supply to your computer.
- Open the debugging assistant, select the corresponding serial port number, and configure it to send and receive test data.
Rajah 4: Connection diagram illustrating how to connect the E34-DTU-2G4D20 to a PC/PLC/RTU, antenna, and power supply.
Rajah 5: Screenshot demonstrating quick visualization tests for data reception and sending using serial port software.
5. Mod Operasi
The E34-DTU-2G4D20 supports various operating modes, configurable via the M0 and M1 pins (typically DIP switches or jumpers). Understanding these modes is crucial for optimal performance in different applications.
| Mod | M0 | M1 | Penerangan |
|---|---|---|---|
| Mode 0: General Mode | ON | ON | Standard operating mode for serial open, wireless open, and transparent data transmission. |
| Mode 1: Wake-up Mode | ON | DIMATIKAN | Wake-on-Air transmit mode. Packets include wake-up codes to activate receiving modules. |
| Mode 2: Battery Saving Mode | DIMATIKAN | ON | Wake-on-Air receive mode. Designed to save power by only receiving data when woken up. This mode does not support transmission. |
| Mode 3: Sleeping Mode | DIMATIKAN | DIMATIKAN | The module enters a low-power sleep state. It can still receive parameter setting commands. |
Rajah 6: Illustration of full-duplex high-speed transmission, showing simultaneous data flow between two E34-DTU modules.
6. Penyelenggaraan
To ensure the longevity and optimal performance of your E34-DTU-2G4D20 transceiver, consider the following maintenance guidelines:
- Keadaan Persekitaran: Kendalikan modul dalam julat suhu dan kelembapan yang ditetapkan. Elakkan pendedahan kepada suhu yang melampau, cahaya matahari langsung atau kelembapan yang tinggi.
- Kebersihan: Pastikan modul bebas daripada habuk dan serpihan. Gunakan kain lembut dan kering untuk membersihkan. Jangan gunakan pembersih cecair atau pelarut.
- Sambungan: Periodically check all cable connections (RS232/RS485, antenna, power) to ensure they are secure and free from damage.
- Penjagaan Antena: Ensure the antenna is properly installed and not obstructed. Avoid bending or damaging the antenna.
- Bekalan Kuasa: Use only power supplies that meet the specified voltage and current requirements to prevent damage.
7. Penyelesaian masalah
If you encounter issues with your E34-DTU-2G4D20, refer to the following common troubleshooting steps:
- Tiada Kuasa:
- Sahkan bekalan kuasa disambungkan dengan betul dan memberikan volum yang ditentukantage (8V-28V DC).
- Periksa kabel kuasa untuk sebarang kerosakan.
- Pastikan sumber kuasa aktif.
- Tiada Penghantaran/Penerimaan Data:
- Confirm that the RS232 or RS485 connections are secure and correctly wired.
- Check the antenna connection and ensure it is a 50Ω antenna.
- Verify that both transceivers are configured to the same frequency, air data rate, and address.
- Ensure the operating mode (M0, M1 settings) is appropriate for your application (e.g., not in sleeping mode if expecting to transmit).
- Check the serial port settings (baud rate, parity, data bits, stop bits) in your software to match the module's configuration.
- For PC connections, ensure the correct serial port driver is installed and the COM port is selected in your application.
- Poor Signal Quality or Short Range:
- Ensure the antenna is positioned optimally and not obstructed by metal objects or walls.
- Check for potential sources of interference in the 2.4GHz band.
- Verify the transmit power setting of the module.
- Modul Terlalu Panas:
- Pastikan pengudaraan yang mencukupi di sekitar modul.
- Verify the ambient temperature is within the specified operating range.
- Periksa sama ada bekalan kuasa voltage is within the acceptable limits.
8. Waranti dan Sokongan
EBYTE products are designed for reliability and performance. For specific warranty details, please refer to the documentation included with your purchase or visit the official EBYTE website. For technical support, product inquiries, or assistance with troubleshooting beyond this manual, please contact EBYTE customer service through their official channels.
Pengeluar: EBYTE
rasmi Webtapak: www.ebyte.com
Rajah 7: Product box label showing manufacturer information and certifications.