1. гаруйview
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. Онцлогууд
- 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 Дарангуйлагч): Даралтын өсөлтийг үр дүнтэй дарангуйлдагtage and transient spike voltage, providing lightningproof and ESD protection.
- Өөрийгөө сэргээх гал хамгаалагч ба хамгаалалтын диодууд: Тогтвортой гүйдэл/хэмжээг ханганаtage outputs, offering over-current/over-voltage 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.
- LED үзүүлэлтүүд: Three LEDs indicate power (PWR) and transceiver status (TXD, RXD).
- High-Quality Connectors: 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. Багцын агуулга
Бүтээгдэхүүний багцад ихэвчлэн дараахь зүйлс орно.
- waveshare FT232RNL USB to RS232/485/422/TTL Interface Converter
- USB-A-аас USB-B кабель
- Халив
- Суурилуулах хаалтууд (урьдчилан бэхэлсэн эсвэл тусдаа)
Зураг 3: Багцын агуулга
4. Тохиргоо
To set up your waveshare FT232RNL converter, follow these general steps:
- Хосттой холбогдох: 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).
- Драйвер суурилуулах: 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).
- Холболтыг баталгаажуулах: 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. Ажиллаж байгаа
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.
LED үзүүлэлтүүд:
- PWR (Улаан): Indicates power. Lights up when the USB connection is established and voltage илэрсэн.
- TXD (Ногоон): 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. Интерфейсийн танилцуулга
The converter provides multiple interfaces for versatile connectivity:
Зураг 4: Илүүview of Converter Interfaces
RS232 Pinout (DB9 Male):
| ПИН | Тодорхойлолт |
|---|---|
| 2 | Receiving data (RXD) |
| 3 | Sending data (TXD) |
| 5 | Газрын GND |
| 1, 4, 6, 7, 8, 9 | N/C (Not Connected) |
RS485/RS422 Pinout (Screw Terminal):
| Screw Terminal (PIN) | Тодорхойлолт |
|---|---|
| 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) | Тодорхойлолт |
|---|---|
| TXD | TTL transmit data pin, connect to MCU.RXD |
| RXD | TTL receive data pin, connect to MCU.TXD |
| GND | GND-д холбогдоно уу |
| VCC | 5V / 3.3V power supply output, configurable via 5V/3.3V level switch |
Figure 5: Detailed Pinouts
7. Техникийн үзүүлэлтүүд
| Ангилал | Тодорхойлолт |
|---|---|
| Бүтээгдэхүүний төрөл | Industrial grade digital isolated converter |
| Үйл ажиллагааны ботьtage | 5V (USB) / 3.3V / 5V (TTL) |
| USB холбогч | USB-B |
| USB хамгаалалт | 200мА өөрийгөө сэргээх гал хамгаалагч, тусгаарлагдсан гаралт |
| RS232 холбогч | DB9 эрэгтэй |
| RS232 хамгаалалт | TVS diode, surge protection & ESD protection |
| RS232 Transmission Mode | Цэгээс цэг рүү |
| RS232 дамжуулах хурд | 300bps ~ 921600bps |
| RS485/422 холбогч | Шураг терминал |
| RS485/422 Direction Control | Тоног төхөөрөмжийн автомат удирдлага |
| 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 | 300bps ~ 2Mbps |
| TTL (UART) Connector | Шураг терминал |
| TTL (UART) Pins | TXD, RXD, GND, 5V/3.3V |
| TTL (UART) Protection | Clamp хамгаалалтын диод, хэт их хэмжээtagд/сөрөг-ботьtage баталгаа, цохилтын эсэргүүцэл |
| TTL (UART) Transmission Mode | Цэгээс цэг рүү |
| TTL (UART) Baud Rate | 300bps ~ 2Mbps |
| Ашиглалтын температур | -40°C ~ 85°C |
| Ашиглалтын чийгшил | 5% RH ~ 95% RH байна |
| Дэмжигдсэн үйлдлийн системүүд | Mac, Linux, Android, Windows 11/10/8.1/8/7 |
| Багцын хэмжээ | 6.14 x 4.33 x 1.26 инч |
| Зүйлийн жин | 1.76 унц |
| Үйлдвэрлэгч | Waveshare |
| Эхний боломжтой огноо | 6 оны хоёрдугаар сарын 2023 |
Figure 6: Outline Dimensions (Unit: mm)
8. Засвар үйлчилгээ
To ensure the longevity and optimal performance of your waveshare FT232RNL converter, follow these maintenance guidelines:
- Цэвэрлэгээ: Use a soft, dry cloth to clean the exterior of the device. Avoid using liquid cleaners or solvents, which may damage the casing эсвэл дотоод бүрэлдэхүүн хэсгүүд.
- Байгаль орчин: 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.
- Харьцуулах: Төхөөрөмжийг болгоомжтой харьц. Дотоод хэлхээг гэмтээж болзошгүй хүчтэй цохилтонд өртөхөөс зайлсхий.
- Холболтууд: Ensure all cable connections are secure and free from strain. Periodically check screw terminals for tightness.
9. Алдаа засах
If you encounter issues with your waveshare FT232RNL converter, consider the following troubleshooting steps:
- Цахилгаангүй (PWR LED унтарсан):
- Ensure the USB cable is securely connected to both the converter and the host computer.
- Компьютер дээрээ өөр USB порт ашиглаж үзнэ үү.
- 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.
- Жолоочийн асуудал:
- 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.
- хөндлөнгийн оролцоо:
- While the device has strong anti-interference capabilities, ensure it is not placed near strong electromagnetic interference sources.
10. Баталгаат хугацаа ба дэмжлэг
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 эсвэл таны бүтээгдэхүүнийг худалдаж авсан жижиглэнгийн худалдаачин.
An official user guide in PDF format is also available for download: Хэрэглэгчийн гарын авлага (PDF)
