1. ആമുഖം
This manual provides comprehensive instructions for the Waveshare USB to RS232 / RS485 / TTL Industrial Isolated Converter. This device is designed for reliable and stable communication between a computer's USB port and various industrial control equipment or applications requiring serial communication via RS232, RS485, or TTL interfaces. It features original FT232RL or CH343G chips, embedded protection circuits such as power isolation, ADI magnetical isolation, and TVS diodes, all housed within a durable aluminum alloy enclosure.
Image 1.1: Waveshare USB to RS232/RS485/TTL Industrial Isolated Converter. This image shows the top view of the converter with its various ports and indicator LEDs.
2. പാക്കേജ് ഉള്ളടക്കം
താഴെ ലിസ്റ്റ് ചെയ്തിരിക്കുന്ന എല്ലാ ഇനങ്ങളും നിങ്ങളുടെ പാക്കേജിൽ ഉൾപ്പെടുത്തിയിട്ടുണ്ടെന്ന് ഉറപ്പാക്കുക:
- USB Converter (x1)
- USB Cable ~1.2m (x1)
Image 2.1: Package Content. This image displays the USB converter unit and the included USB cable.
3. സവിശേഷതകൾ
The Waveshare USB to RS232 / RS485 / TTL converter offers a robust set of features for industrial and communication applications:
- Original Chipset: Utilizes original FT232RL or CH343G chips for fast, stable, and reliable communication with broad compatibility.
- പവർ ഐസൊലേഷൻ: Onboard unibody power supply isolation provides stable isolated voltage, eliminating the need for an external power supply for the isolated terminal.
- Signal Isolation: Onboard unibody digital isolation ensures high reliability, strong anti-interference capabilities, and low power consumption.
- സംരക്ഷണ സർക്യൂട്ടുകൾ:
- TVS (ക്ഷണികമായ വാല്യംtage Suppressor): Effectively suppresses surge voltagഇ, ക്ഷണികമായ സ്പൈക്ക് വോള്യംtage, offering lightning protection and ESD protection.
- Self-recovery Fuse & Protection Diodes: Ensures stable current/voltage outputs, provides over-current/over-voltage protection, and improves shock resistance.
- Automatic Transceiver: Fully automatic transceiver circuit with no delay ensures the USB port communicates with different interfaces quickly and stably without mutual interference.
- TTL Voltagഇ വിവർത്തകൻ: ഓൺബോർഡ് TTL സീരിയൽ 3.3V/5V voltage translator, configurable via a switch.
- Durable Enclosure: Features an aluminum alloy enclosure with sandblasting and anodic oxidation, processed by CNC, making it solid and durable.
- നില സൂചകങ്ങൾ: Three LEDs (PWR, TXD, RXD) indicate power and transceiver status.
- ഉയർന്ന നിലവാരമുള്ള കണക്ടറുകൾ: Equipped with high-quality USB-B and RS232 connectors for smooth plug/pull operations.
Image 3.1: Key Features. This image highlights the main features of the converter, including its industrial-grade isolation and various protection mechanisms.
Image 3.2: Internal Design. This image illustrates the original FT232RL/CH343G chips and the isolated design for enhanced safety and performance.
Image 3.3: Protection and Compatibility. This image shows the various protection features like TVS, over-current, and over-voltage protection, along with multi-system support for Windows, Linux, and Mac OS.
4 സ്പെസിഫിക്കേഷനുകൾ
Detailed technical specifications for the USB to RS232 / RS485 / TTL converter:
Image 4.1: Specifications Table. This image provides a comprehensive table of the product's technical specifications, including operating voltage, connector types, protection features, transmission modes, baud rates, and operating environment.
| വിഭാഗം | ഇനം | വിവരണം |
|---|---|---|
| ഉൽപ്പന്ന തരം | Industrial grade digital isolated converter | |
| USB | ഓപ്പറേറ്റിംഗ് വോളിയംtage | 5V |
| കണക്റ്റർ | USB-B | |
| സംരക്ഷണം | 200mA സെൽഫ് റിക്കവറി ഫ്യൂസ്, ഒറ്റപ്പെട്ട ഔട്ട്പുട്ട് | |
| RS232 | കണക്റ്റർ | DB9 പുരുഷൻ |
| സംരക്ഷണം | TVS diode, surge protection & ESD protection | |
| ട്രാൻസ്മിഷൻ മോഡ് | പോയിൻ്റ്-ടു-പോയിൻ്റ് | |
| ബൗഡ് നിരക്ക് | FT232RL: 300bps ~ 921600 bps CH343G: up to 600000 bps (not full band) |
|
| RS485 | കണക്റ്റർ | സ്ക്രൂ ടെർമിനൽ |
| പിന്നുകൾ | A+/B-/GND | |
| ദിശ നിയന്ത്രണം | Hardware automatically discriminates and controls the direction of data transmission | |
| സംരക്ഷണം | 600W lightningproof and surge-suppress, 15KV ESD protection (reserved 120R balancing resistor solder pads) | |
| ട്രാൻസ്മിഷൻ മോഡ് | Point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more) | |
| TTL (UART) | ബൗഡ് നിരക്ക് | FT232RL: 300bps ~ 2 Mbps CH343G: up to 2 Mbps (not full band) |
| ഓപ്പറേറ്റിംഗ് വോളിയംtage | 3.3V / 5V | |
| കണക്റ്റർ | സ്ക്രൂ ടെർമിനൽ | |
| പിന്നുകൾ | TXD, RXD, GND, 5V | |
| സംരക്ഷണം | clamp സംരക്ഷണ ഡയോഡ്, ഓവർ-വോളിയംtagഇ/നെഗറ്റീവ്-വോളിയംtagഇ തെളിവ്, ഷോക്ക് പ്രതിരോധം | |
| ട്രാൻസ്മിഷൻ മോഡ് | പോയിൻ്റ്-ടു-പോയിൻ്റ് | |
| സൂചകങ്ങൾ | Pwr | Red power indicator, lights up when USB connection and voltage are detected |
| TXD | Green TX indicator, lights up when the USB port sends data | |
| RXD | Blue RX indicator, lights up when the device receives data | |
| പ്രവർത്തന പരിസ്ഥിതി | താപനില | -15°C ~ 70°C |
| ഈർപ്പം | 5% RH ~ 95% RH | |
| ഓപ്പറേറ്റിംഗ് സിസ്റ്റം | Mac, Linux, Android, Windows 11 / 10 / 8.1 / 8 / 7 | |
Image 4.2: Interface Overview and Dimensions. This image provides a visual guide to the various ports (USB, RS232, RS485, TTL) and indicator LEDs, along with detailed outline dimensions in millimeters.
5. സജ്ജീകരണം
Follow these steps to set up your Waveshare USB to RS232 / RS485 / TTL converter:
- ഡ്രൈവർ ഇൻസ്റ്റാളേഷൻ:
For most modern operating systems (Windows 10/11, Linux, macOS), the necessary drivers for the FT232RL or CH343G chipset should install automatically upon connecting the device. If automatic installation fails, or for older operating systems (e.g., Windows 7/8), you may need to manually download and install the drivers from the Waveshare official webസൈറ്റ്. ഇതിനായി തിരയുക "FT232RL driver" or "CH343G driver" on their support page.
- ശാരീരിക ബന്ധം:
- Connect the provided USB cable to the USB-B port on the converter and the other end to an available USB port on your computer. The PWR indicator LED should light up red.
- For RS232 Communication: Connect your RS232 device to the DB9 male connector on the converter. Ensure proper pin alignment (TXD, RXD, GND). Refer to the RS232 pinout in the specifications section.
- For RS485 Communication: Use the screw terminals labeled A+, B-, and GND. Connect the corresponding A, B, and Ground lines from your RS485 device.
- For TTL (UART) Communication: Use the screw terminals labeled TXD, RXD, GND, and 5V. Connect your TTL device's TX, RX, GND, and power lines accordingly.
- TTL Voltagഇ തിരഞ്ഞെടുക്കൽ:
If using the TTL interface, ensure the voltage selection switch (3V3/5V) on the side of the converter is set to match the operating voltage of your TTL device (3.3V or 5V).
6. പ്രവർത്തിക്കുന്നു
Once the converter is set up and drivers are installed, you can begin communication:
- Identify COM Port:
After connecting the converter to your computer, it will be recognized as a virtual COM port. You can find the assigned COM port number in your operating system's Device Manager (Windows) or by checking
/dev/ttyUSBx(Linux) or/dev/cu.usbserial-xxxx(മാകോസ്). - സോഫ്റ്റ്വെയർ കോൺഫിഗറേഷൻ:
Open your serial communication software (e.g., PuTTY, RealTerm, Arduino IDE Serial Monitor, Modbus Poll). Configure the software with the correct COM port number, baud rate, data bits, parity, and stop bits to match your target device's settings.
- ഡാറ്റ ട്രാൻസ്മിഷൻ:
Initiate communication from your software. The TXD (green) and RXD (blue) indicator LEDs on the converter will blink, indicating data transmission and reception respectively. The automatic transceiver circuit handles the direction control for RS485 without requiring manual intervention.
- Multi-Protocol Conversion:
The converter allows conversion between USB and RS232, RS485, or TTL. Note that only one of the RS232, RS485, or TTL interfaces can be actively used at a time for conversion to/from USB. RS232, RS485, and TTL cannot be converted directly between each other.
Image 6.1: Working Status Indicators. This image details the function of the PWR, TXD, and RXD LEDs, which provide visual feedback on the device's operational status.
7. പരിപാലനം
To ensure the longevity and optimal performance of your converter:
- ഉപകരണം വൃത്തിയായും പൊടിയില്ലാതെയും സൂക്ഷിക്കുക. വൃത്തിയാക്കാൻ മൃദുവായതും ഉണങ്ങിയതുമായ തുണി ഉപയോഗിക്കുക.
- കൺവെർട്ടറിനെ തീവ്രമായ താപനില, ഈർപ്പം അല്ലെങ്കിൽ നേരിട്ടുള്ള സൂര്യപ്രകാശം എന്നിവയിൽ ഏൽപ്പിക്കുന്നത് ഒഴിവാക്കുക.
- Do not attempt to open the enclosure or modify the internal circuitry, as this will void the warranty and may damage the device.
- Store the converter in a safe place when not in use to prevent physical damage.
8. പ്രശ്നപരിഹാരം
If you encounter issues with your converter, refer to the following common problems and solutions:
| പ്രശ്നം | സാധ്യമായ കാരണം | പരിഹാരം |
|---|---|---|
| PWR LED is off | No power from USB port or faulty USB cable. | Try a different USB port or USB cable. Ensure the computer is powered on. |
| Device not recognized by computer (no COM port) | Drivers not installed or incorrectly installed. | Manually install drivers from Waveshare website. Check Device Manager for unrecognized devices. Restart computer. |
| No data transmission (TXD/RXD LEDs not blinking) | Incorrect COM port, baud rate, or wiring. Device not sending/receiving data. | Verify COM port, baud rate, and other serial settings in your software. Check wiring connections (TX to RX, RX to TX, GND to GND). Ensure the target device is powered and communicating. |
| Communication errors or corrupted data | Mismatched serial parameters (baud rate, parity, data bits, stop bits). Noise interference. | Double-check all serial parameters in your software to match the target device. Ensure proper grounding. For RS485, verify termination resistors if applicable. |
| TTL communication issues | Incorrect TTL voltagഇ സെലക്ഷൻ. | Ensure the 3V3/5V switch is set to match your TTL device's operating voltage. |
9. വാറൻ്റിയും പിന്തുണയും
വാറന്റി വിവരങ്ങൾക്കും സാങ്കേതിക പിന്തുണയ്ക്കും, ദയവായി ഔദ്യോഗിക വേവ്ഷെയർ പരിശോധിക്കുക. webസൈറ്റിൽ ബന്ധപ്പെടുക അല്ലെങ്കിൽ അവരുടെ ഉപഭോക്തൃ സേവനവുമായി നേരിട്ട് ബന്ധപ്പെടുക. വാറന്റി ക്ലെയിമുകൾക്കായി നിങ്ങളുടെ വാങ്ങൽ രസീത് സൂക്ഷിക്കുക.
വേവ്ഷെയർ ഒഫീഷ്യൽ Webസൈറ്റ്: www.waveshare.com
For driver downloads and detailed product documentation, visit the product page on the Waveshare website using the model number "USB TO RS232/485/TTL".





