1. Більшеview
The waveshare FT232RNL USB to RS232/485/422/TTL Interface Converter is an industrial-grade isolated converter designed for reliable and stable communication across various serial interfaces. It leverages an original FT232RNL chip for superior performance and compatibility. This device is engineered with multiple protection features to ensure safe and durable operation in diverse environments.
Figure 1: waveshare FT232RNL USB to RS232/485/422/TTL Interface Converter
2. особливості
- Original FT232RNL Chip: Ensures fast, stable, and reliable communication with enhanced compatibility.
- Multi-Interface Conversion: Supports USB to RS232, USB to RS485, USB to RS422, and USB to TTL.
- Unibody Power Supply Isolation: Provides stable isolated voltage without requiring external power for the isolated terminal.
- Unibody Digital Isolation: Allows signal isolation, offering high reliability, strong anti-interference, and low power consumption.
- TVS (Transient Voltage Suppressor): Effectively suppresses surge voltagе та перехідний стрибок обtage, providing lightningproof and ESD protection.
- Self-Recovery Fuse & Protection Diodes: Ensures stable current/voltagвиходи, що пропонують захист від перевантаження по струму/перенапругиtage proof and improved shock resistance.
- Automatic Transceiver Circuit: Fully automatic, no-delay transceiver circuit for fast and stable communication without interference.
- TTL Serial 3.3V/5V Voltage Translator: Configurable TTL level via switch.
- Світлодіодні індикатори: Three LEDs indicate power (PWR) and transceiver status (TXD, RXD).
- Високоякісні роз'єми: Durable USB-B and RS232 connectors for smooth plug/pull.
- Industrial-Grade Metal Case: Supports wall-mount and rail-mount installations, providing a solid and aesthetically pleasing дизайн.
Figure 2: Internal Design and Protection Features
3. Зміст пакету
Комплектація продукту зазвичай включає такі елементи:
- waveshare FT232RNL USB to RS232/485/422/TTL Interface Converter
- Кабель USB-A – USB-B
- Викрутка
- Mounting Brackets (pre-attached or separate)
Малюнок 3: Вміст пакета
4. Налаштування
To set up your waveshare FT232RNL converter, follow these general steps:
- Підключення до хоста: Use the provided USB-A to USB-B cable to connect the converter's USB-B port to a USB port on your computer (PC, Mac, Linux, Android device).
- Встановлення драйвера: For most modern operating systems (Windows, Linux, Mac, Android), the necessary drivers for the FT232RNL chip should install automatically upon connection. If not, drivers can be obtained from the FTDI website or waveshare's official support page.
- Select TTL Level (if applicable): If using the TTL interface, adjust the 3.3V/5V voltage translator switch on the converter to match the voltage level of your target device.
- Connect Serial Device: Connect your RS232, RS485, RS422, or TTL serial device to the corresponding screw terminals or DB9 connector on the converter. Ensure correct pin assignments (refer to Section 6: Interface Introduction).
- Перевірте підключення: The PWR LED on the converter should illuminate when connected to a powered USB port. The TXD and RXD LEDs will flash during data transmission.
Video 1: Demonstrates the connection and various interface conversions of the waveshare USB to RS232/485/422/TTL converter.
5. Операційна
Once the converter is set up and connected, it operates as a transparent bridge between your USB host and the connected serial device. The onboard automatic transceiver circuit manages data flow without manual intervention.
Світлодіодні індикатори:
- PWR (червоний): Indicates power. Lights up when the USB connection is established and voltage виявлено.
- TXD (Green): Transmit Data Indicator. Lights up when the USB port sends data.
- RXD (Green): Receive Data Indicator. Lights up when the device ports send data back.
To communicate with your serial device, use appropriate serial communication software on your computer. Configure the software with the correct COM port (assigned by your operating system), baud rate, data bits, parity, and stop bits to match your serial device's settings.
6. Вступ до інтерфейсу
The converter provides multiple interfaces for versatile connectivity:
Малюнок 4: Закінченоview of Converter Interfaces
RS232 Pinout (DB9 Male):
| PIN-код | опис |
|---|---|
| 2 | Receiving data (RXD) |
| 3 | Sending data (TXD) |
| 5 | Заземлення GND |
| 1, 4, 6, 7, 8, 9 | N/C (Not Connected) |
RS485/RS422 Pinout (Screw Terminal):
| Screw Terminal (PIN) | опис |
|---|---|
| PE | 485/422 signal ground |
| TA | RS422 send differential signal positive / RS485 differential signal positive A+ |
| TB | RS422 send differential signal negative / RS485 differential signal negative B- |
| RA | RS422 receive differential signal positive |
| RB | RS422 receive differential signal negative |
TTL (UART) Pinout (Screw Terminal):
| Screw Terminal (PIN) | опис |
|---|---|
| TXD | TTL transmit data pin, connect to MCU.RXD |
| RXD | TTL receive data pin, connect to MCU.TXD |
| GND | Підключіться до GND |
| VCC | 5V / 3.3V power supply output, configurable via 5V/3.3V level switch |
Figure 5: Detailed Pinouts
7. Технічні характеристики
| Категорія | Специфікація |
|---|---|
| Тип продукту | Industrial grade digital isolated converter |
| Робочий випtage | 5V (USB) / 3.3V / 5V (TTL) |
| USB-роз'єм | USB-B |
| Захист USB | Запобіжник із самовідновленням 200 мА, ізольований вихід |
| Роз'єм RS232 | DB9 чоловік |
| Захист RS232 | TVS diode, surge protection & ESD protection |
| RS232 Transmission Mode | Точка-точка |
| Швидкість передачі даних RS232 | 300bps ~ 921600bps |
| Роз'єм RS485/422 | Гвинтова клема |
| RS485/422 Direction Control | Hardware automatic control |
| RS485/422 Protection | 600W lightningproof and surge-suppress, 15KV ESD protection (reserved two 120R balancing resistors, enabled/disabled via jumper) |
| RS485/422 Transmission Mode | Point-to-multipoints (485 mode: up to 32 nodes, repeaters recommended for 16+ nodes; 422 mode: up to 256 nodes, repeaters recommended for 16+ nodes) |
| RS485/422 Baud Rate | 300 біт/с ~ 2 Мбіт/с |
| TTL (UART) Connector | Гвинтова клема |
| TTL (UART) Pins | TXD, RXD, GND, 5V/3.3V |
| TTL (UART) Protection | Clamp захисний діод, над-волtage/negative-voltage proof, ударостійкість |
| TTL (UART) Transmission Mode | Точка-точка |
| TTL (UART) Baud Rate | 300 біт/с ~ 2 Мбіт/с |
| Робоча температура | -40°C ~ 85°C |
| Робоча вологість | 5% вологості ~ 95% вологості |
| Підтримувані операційні системи | Mac, Linux, Android, Windows 11/10/8.1/8/7 |
| Розміри упаковки | 6.14 x 4.33 x 1.26 дюймів |
| Вага товару | 1.76 унції |
| Виробник | Waveshare |
| Дата першої доступності | 6 лютого 2023 р |
Рисунок 6: Габаритні розміри (одиниця вимірювання: мм)
8. Технічне обслуговування
To ensure the longevity and optimal performance of your waveshare FT232RNL converter, follow these maintenance guidelines:
- Прибирання: Use a soft, dry cloth to clean the exterior of the device. Avoid using liquid cleaners or solvents, which may damage the casing або внутрішні компоненти.
- Середовище: Operate and store the converter in a clean, dry environment, away from excessive dust, moisture, and extreme temperatures. Refer to the operating temperature and humidity specifications.
- Обробка: Handle the device with care. Avoid dropping it or subjecting it to strong impacts, which could damage the internal circuitry.
- Підключення: Ensure all cable connections are secure and free from strain. Periodically check screw terminals for tightness.
9. Вирішення проблем
If you encounter issues with your waveshare FT232RNL converter, consider the following troubleshooting steps:
- Немає живлення (світлодіод живлення вимкнено):
- Ensure the USB cable is securely connected to both the converter and the host computer.
- Спробуйте інший порт USB на комп’ютері.
- Verify that your computer's USB port is providing power.
- No Data Transmission (TXD/RXD LEDs not flashing):
- Check all serial connections (RS232, RS485, RS422, TTL) for correct wiring and secure connections.
- Verify that the serial communication software on your computer is correctly configured (COM port, baud rate, data bits, parity, stop bits).
- Ensure the TTL level switch is set correctly for your TTL device (3.3V or 5V).
- Confirm that the connected serial device is powered on and functioning correctly.
- Проблеми з драйверами:
- If the device is not recognized by your operating system, try reinstalling the FTDI drivers. These can typically be found on the FTDI webсайт.
- Check your device manager (Windows) or equivalent system information (Linux/Mac) to see if the device is listed without errors.
- Перешкоди:
- While the device has strong anti-interference capabilities, ensure it is not placed near strong electromagnetic interference sources.
10. Гарантія та підтримка
For warranty information, technical support, or further assistance with your waveshare FT232RNL USB to RS232/485/422/TTL Interface Converter, please contact waveshare directly through their official webсайт або магазин, у якого ви придбали товар.
Офіційний посібник користувача у форматі PDF також доступний для завантаження: Керівництво користувача (PDF)