1. איבערview
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. פֿעיִקייטן
- 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.
- טווס (טראַנסיענט וואָלtage Suppressor): Effectively suppresses surge voltagE און טראַנזשאַנט ספּייק וואָלtage, providing lightningproof and ESD protection.
- Self-Recovery Fuse & Protection Diodes: Ensures stable current/voltage 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 ינדיקאַטאָרס: 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 pleasinג דיזיין.
Figure 2: Internal Design and Protection Features
3. פּעקל אינהאַלט
דער פּראָדוקט פּעקל טיפּיש כולל די פאלגענדע זאכן:
- waveshare FT232RNL USB to RS232/485/422/TTL Interface Converter
- וסב-א צו וסב-ב קאַבלע
- שרויפנ - ציער
- מאָנטירונג קלאַמערן (פאַר-אַטאַטשט אָדער באַזונדער)
פיגורע 3: פּעקל אינהאַלט
4. סעטאַפּ
To set up your waveshare FT232RNL converter, follow these general steps:
- פֿאַרבינדן זיך צום באַלעבאָס: 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).
- דרייווער ינסטאַלירונג: 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.
- פאַרבינדן סעריאַל מיטל: 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).
- באַשטעטיקן קשר: 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. אָפּערייטינג
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 ינדיקאַטאָרס:
- PWR (Red): Indicates power. Lights up when the USB connection is established and voltage איז דיטעקטאַד.
- 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. צובינד הקדמה
The converter provides multiple interfaces for versatile connectivity:
פיגורע 4: איבערview of Converter Interfaces
RS232 Pinout (DB9 Male):
| PIN | באַשרייַבונג |
|---|---|
| 2 | Receiving data (RXD) |
| 3 | Sending data (TXD) |
| 5 | ערד GND |
| 1, 4, 6, 7, 8, 9 | N/C (Not Connected) |
RS485/RS422 Pinout (Screw Terminal):
| Screw Terminal (PIN) | באַשרייַבונג |
|---|---|
| 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) | באַשרייַבונג |
|---|---|
| TXD | TTL transmit data pin, connect to MCU.RXD |
| RXD | TTL receive data pin, connect to MCU.TXD |
| GND | פאַרבינדן צו GND |
| VCC | 5V / 3.3V power supply output, configurable via 5V/3.3V level switch |
Figure 5: Detailed Pinouts
7. ספּעסאַפאַקיישאַנז
| קאַטעגאָריע | באַשרייַבונג |
|---|---|
| פּראָדוקט טיפּ | Industrial grade digital isolated converter |
| אַפּערייטינג וואָלtage | 5V (USB) / 3.3V / 5V (TTL) |
| וסב קאַנעקטער | וסב-ב |
| יו-עס-בי שוץ | 200מאַ זיך-רעקאָווערי קאָריק, אפגעזונדערט רעזולטאַט |
| RS232 קאַנעקטער | DB9 זכר |
| RS232 פּראַטעקשאַן | TVS diode, surge protection & ESD protection |
| RS232 Transmission Mode | פונט-צו-פונט |
| RS232 באַוד קורס | 300bps ~ 921600bps |
| RS485/422 קאַנעקטער | שרויף וואָקזאַל |
| 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 | 300bps ~ 2Mbps |
| TTL (UART) Connector | שרויף וואָקזאַל |
| TTL (UART) Pins | TXD, RXD, GND, 5V/3.3V |
| TTL (UART) Protection | Clamp שוץ דייאָוד, איבער-וואָלtagE/נעגאַטיוו-וואָלtagE דערווייַז, קלאַפּ קעגנשטעל |
| TTL (UART) Transmission Mode | פונט-צו-פונט |
| TTL (UART) Baud Rate | 300bps ~ 2Mbps |
| אַפּערייטינג טעמפּעראַטור | -40°C ~ 85°C |
| אַפּערייטינג הומידיטי | 5%רה ~ 95%רה |
| שטיצט אַפּערייטינג סיסטעמס | מעק, לינוקס, אַנדרויד, Windows 11/10/8.1/8/7 |
| פּעקל דימענשאַנז | 6.14 X 4.33 X 1.26 אינטשעס |
| פּונקט וואָג | 1.76 אונסעס |
| פאַבריקאַנט | וואַוועשאַרע |
| ערשטער דאַטע בנימצא | 6 פעברואר 2023 |
Figure 6: Outline Dimensions (Unit: mm)
8. וישאַלט
To ensure the longevity and optimal performance of your waveshare FT232RNL converter, follow these maintenance guidelines:
- רייניקונג: Use a soft, dry cloth to clean the exterior of the device. Avoid using liquid cleaners or solvents, which may damage the casinג אדער אינערלעכע קאמפאנענטן.
- סוויווע: 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.
- האַנדלינג: Handle the device with care. Avoid dropping it or subjecting it to strong impacts, which could damage the internal circuitry.
- פֿאַרבינדונגען: Ensure all cable connections are secure and free from strain. Periodically check screw terminals for tightness.
9. טראָובלעשאָאָטינג
If you encounter issues with your waveshare FT232RNL converter, consider the following troubleshooting steps:
- קיין מאַכט (PWR LED אויסגעלאָשן):
- Ensure the USB cable is securely connected to both the converter and the host computer.
- פּרוּווט אַ אַנדערש וסב פּאָרט אויף דיין קאָמפּיוטער.
- 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.
- שאָפער ישוז:
- If the device is not recognized by your operating system, try reinstalling the FTDI drivers. These can typically be found on the FTDI webפּלאַץ.
- Check your device manager (Windows) or equivalent system information (Linux/Mac) to see if the device is listed without errors.
- ינטערפיראַנס:
- While the device has strong anti-interference capabilities, ensure it is not placed near strong electromagnetic interference sources.
10. וואָראַנטי און שטיצן
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 webוועבזייטל אדער דער הענדלער פון וועמען איר האט געקויפט דעם פּראָדוקט.
An official user guide in PDF format is also available for download: באַניצער גייד (PDF)
