waveshare USB to RS485/422 Industrial Grade Isolated Converter

1. ഓവർview

The waveshare USB to RS485/422 Industrial Grade Isolated Converter is designed to facilitate reliable data transmission between computers and RS485/RS422 devices. It incorporates original FT232RL and SP485EEN chips for stable and fast communication, along with comprehensive protection features. This manual provides essential information for the proper setup, operation, and maintenance of the device.

ചിത്രം 1: മുൻഭാഗം view of the waveshare USB to RS485/422 Industrial Grade Isolated Converter.

2. പാക്കേജ് ഉള്ളടക്കം

പാക്കേജിൽ എല്ലാ ഇനങ്ങളും ഉണ്ടെന്ന് ഉറപ്പാക്കുക:

• USB to RS485/422 Isolated Converter Unit
• USB-B കേബിൾ
• ചെറിയ സ്ക്രൂഡ്രൈവർ

Figure 2: Included items: the converter, a USB cable, and a screwdriver.

3. സവിശേഷതകൾ

The converter is equipped with advanced features for robust industrial applications:

• Original Chips: Onboard Original FT232RL and SP485EEN chips ensure fast, stable, and reliable communication with better compatibility.
• പവർ ഐസൊലേഷൻ: Features unibody power supply isolation, providing stable isolated voltage without requiring an extra power supply for the isolated terminal.
• Digital Isolation: Incorporates unibody digital isolation for signal isolation, high reliability, strong anti-interference, and low power consumption.
• താൽക്കാലിക വോളിയംtage Suppressor (TVS): സർജ് വോളിയം ഫലപ്രദമായി അടിച്ചമർത്തുന്നുtagഇ, ക്ഷണികമായ സ്പൈക്ക് വോള്യംtage in the circuit, offering lightningproof and anti-electrostatic protection.
• Self-Recovery Fuse & Protection Diodes: Ensures stable current/voltage outputs, providing over-current/over-voltage proof and improving shock resistance.
• ESD & Surge Protection: Onboard 15KV ESD isolation protection and 600W lightningproof & anti-surge protection.
• Terminal Resistor: Onboard 120R terminal resistor on the RS485/RS422 ports, enabled by default and configurable via jumper.
• LED സൂചകങ്ങൾ: Three LEDs indicate power (PWR), transmit data (TXD), and receive data (RXD) status.
• വ്യാവസായിക രൂപകൽപ്പന: Industrial rail-mount ABS case design, compact, easy to install, and cost-effective.

Figure 3: The converter's industrial-grade design and isolation capabilities.

ചിത്രം 4: ഓവർview of key features and the original FT232RL chip.

4. സംരക്ഷണ സവിശേഷതകൾ

The device is engineered with multiple layers of protection to ensure stable and safe operation:

• TVS (ക്ഷണികമായ വാല്യംtagഇ സപ്രസ്സർ): വോള്യത്തിൽ നിന്ന് സംരക്ഷിക്കുന്നുtagഇ സ്പൈക്കുകൾ.
• Self-Recovery Fuse: Automatically resets after an overcurrent event.
• Protection Diodes: Safeguard against over-current and over-voltage.
• ESD സംരക്ഷണം: 15KV Electrostatic Discharge protection.
• Lightningproof & Anti-Surge Protection: 600W protection against lightning and power surges.

Figure 5: Visual representation of the converter's comprehensive protection mechanisms.

5. ഇന്റർഫേസ് വിവരണം

The converter features clearly labeled interfaces and indicators for ease of use:

• RS485/RS422 Interfaces: Screw terminals for connecting to RS485 (A+, B-, PE) or RS422 (PE, TA, TB, RA, RB) devices.
• USB & Power: USB-B port for connecting to the host computer, providing both data and power.
• LED സൂചകങ്ങൾ:
  • പിഡബ്ല്യുആർ (ചുവപ്പ്): Illuminates when the USB connection is established and voltagഇ കണ്ടെത്തി.
  • TXD (Green): Blinks when the USB port sends data.
  • RXD (Blue): Blinks when the device ports receive data.

ചിത്രം 6: വിശദമായി view of the converter's interfaces and LED indicators.

6. സജ്ജീകരണവും ഇൻസ്റ്റാളേഷനും

Follow these steps for proper setup and installation:

1. ഹോസ്റ്റിലേക്ക് കണക്റ്റുചെയ്യുക: Connect the converter to your computer's USB port using the provided USB-B cable. The PWR LED should light up.
2. Connect to RS485/RS422 Device: Use the screw terminals to connect your RS485 or RS422 device. Ensure correct polarity (A+, B- for RS485; PE, TA, TB, RA, RB for RS422).
3. Terminal Resistor Configuration: The onboard 120R terminal resistor is enabled by default. If your application requires it to be disabled, refer to the product's detailed documentation for jumper configuration.
4. ഡ്രൈവർ ഇൻസ്റ്റാളേഷൻ: Install the necessary drivers for the FT232RL chip on your operating system (Mac, Linux, Android, Windows 11/10/8.1/8/7). Drivers are typically available from the FTDI website or Waveshare's product page.
5. മൗണ്ടിംഗ്: The converter features a rail-mount design, suitable for 35mm DIN rails, or can be wall-mounted using the integrated mounting holes.

Figure 7: The converter supports both wall-mount and rail-mount installations.

7. പ്രവർത്തന നിർദ്ദേശങ്ങൾ

Once connected and drivers are installed, the converter operates transparently, enabling bidirectional communication between your USB host and RS485/RS422 devices.

• ഡാറ്റ ട്രാൻസ്മിഷൻ: The device supports point-to-multipoint communication for up to 32 nodes. For more than 16 devices, using repeaters is recommended to maintain signal integrity over longer distances.
• ട്രാൻസ്മിഷൻ ദൂരം: The USB signal can be converted into a balanced differential RS485/422 signal. The transmission distance is approximately 1.2km for RS485/422, and about 5 meters for USB.
• സിസ്റ്റം അനുയോജ്യത: Compatible with a wide range of operating systems including Mac, Linux, Android, WinCE, and Windows (11, 10, 8.1, 8, 7).

Figure 8: The converter supports long-distance transmission and multiple operating systems.

8 സ്പെസിഫിക്കേഷനുകൾ

9. പ്രശ്‌നപരിഹാരം

If you encounter issues with the converter, consider the following:

• No Power (PWR LED off): Ensure the USB cable is securely connected to both the converter and the host computer. Try a different USB port or cable.
• ഡാറ്റാ ട്രാൻസ്മിഷൻ ഇല്ല (TXD/RXD LED-കൾ മിന്നുന്നില്ല): Verify that the correct drivers are installed for the FT232RL chip. Check the wiring to your RS485/RS422 device for correct polarity and secure connections. Confirm that the communication parameters (baud rate, data bits, stop bits, parity) match between your host and the connected device.
• ഇടവിട്ടുള്ള കണക്ഷൻ: Check for electromagnetic interference in the environment. Ensure cable lengths are within specified limits (5m for USB, 1.2km for RS485/422). For long RS485/422 networks or many nodes, consider using repeaters.
• ഉപകരണം തിരിച്ചറിഞ്ഞിട്ടില്ല: Reinstall the FTDI drivers. Try connecting to a different computer to rule out host-specific issues.

10. പരിപാലനം

To ensure the longevity and optimal performance of your converter:

• വൃത്തിയാക്കൽ: ഉപകരണത്തിന്റെ പുറംഭാഗം വൃത്തിയാക്കാൻ മൃദുവായതും ഉണങ്ങിയതുമായ തുണി ഉപയോഗിക്കുക. ലിക്വിഡ് ക്ലീനറുകളോ ലായകങ്ങളോ ഉപയോഗിക്കുന്നത് ഒഴിവാക്കുക.
• സംഭരണം: Store the converter in a cool, dry environment away from direct sunlight and extreme temperatures when not in use.
• പരിസ്ഥിതി വ്യവസ്ഥകൾ: Operate the device within the specified temperature (-15°C ~ 70°C) and humidity (5%RH ~ 95%RH) ranges.
• കേബിൾ മാനേജുമെന്റ്: Ensure cables are not kinked or under excessive strain to prevent damage.

11. വാറണ്ടിയും പിന്തുണയും

For warranty information and technical support, please contact the manufacturer, Waveshare, directly. You may also find additional resources and updated drivers on their official webസൈറ്റ്.

Additional documentation for this product can be found via the following links:

• ഉപയോക്തൃ മാനുവൽ (PDF)
• ഉപയോക്തൃ ഗൈഡ് (PDF)