Waveshare Industrial Isolated USB to RS485/422 Converter

Waveshare 25970 Industrial Isolated USB to RS485/RS422 Converter, Original FT4232HL Chip, Supports USB to 2-Channel RS485 + 2-Channel RS485/RS422, Wall and Rail Mounting Available

Features:

• Uses the original chip FT4232HL, fast communication, stable and reliable, better compatibility.
  
• Supports USB to 4-channel multi-function serial port, convenient for expanding or debugging various industrial serial interface devices.
  
• Supports USB to 2-channel isolated RS485/422 + 2-channel isolated RS485.
  
• Integrated unibody power supply isolation, provides stable isolated voltage, no additional power supply required for the isolated port.
  
• Integrated digital isolation, enables signal isolation, high reliability, strong anti-interference, low power consumption.
  
• Integrated TVS (Transient Voltage Suppressor), effectively suppresses overvoltages and transient voltage spikes in the circuit, lightning protection and ESD protection.
  
• Built-in self-recovery fuse and protection diodes, ensures stable current/voltage outputs, provides overcurrent/overvoltage protection, improves shock resistance.
  
• Fully automatic transceiver switching without delay, ensures fast and stable communication between the USB port and various interfaces without mutual interference.
  
• 9 LEDs to display power and transceiver status
  High-quality USB-B connectors, easy insertion/extraction
  
• Industrial grade metal housing, supports wall and rail mounting, solid and easy to install.

Specifications:

• Product Type: Industrial Digital Isolated Converter
• USB:
  • Operating voltage: 5V
  • Connection: USB-B
  • Fuse: 200 mA self-recovery fuse, isolated output
• Isolated RS485/422:
  • Connection: screw terminal
  • Directional control: Automatic hardware control
  • Fuse: TVS diode, overvoltage and ESD protection, power isolation and signal isolation
  • Resistance: Integrated 120R matching resistor, NC by default, can be activated via jumper
  • Transmission mode: Point-to-multipoint connections (485 mode: up to 32 nodes, for 16 or more nodes, the use of repeaters is recommended; 422 mode: up to 256 nodes, for 16 or more nodes, the use of repeaters is recommended)
  • Baud rate: 300 bit/s to 921,600 bit/s
• Isolated RS485:
  • Connection: screw terminal
  • Directional control: Automatic hardware control
  • Fuse: TVS diode, overvoltage and ESD protection, power isolation and signal isolation
  • Resistance: Integrated 120R matching resistor, NC by default, can be activated via jumper
  • Transmission mode: Point-to-multipoint connections (485 mode: up to 32 nodes, for 16 or more nodes, the use of repeaters is recommended)
  • Baud rate: 300 bit/s to 921,600 bit/s
• Show:
  • PWR: Red power indicator, lights up when a USB connection is established and voltage is detected
  • TX1 to TX4: TX indicator, lights up when the USB port is sending data
  • RX1 to RX4: RX indicator, lights up when the device ports send data back
• Operating environment:
  • Operating temperature: -40 to 85 °C
  • Humidity: 5% RH to 95% RH
• Operating systems: Mac, Linux, Android, Windows 11/10/8.1/8/7

For further technical details please visit the manufacturer's product page .