Waveshare Industrial Isolated Multi-Bus Converter, USB / RS232 / RS485 / TTL

Waveshare 21411 Industrial Isolated Multi-Bus Converter, USB/RS232/RS485/TTL Communication

The USB/RS232/RS485/TTL converter is an industrial-grade isolated converter that supports USB/RS232/TTL to RS232/485/TTL and features integrated power supply isolation, digital isolation, and protection circuits such as TVS diodes. It is easy to use and suitable for industrial control devices and/or applications with high communication requirements.

Features:

• Uses the original FT232RL for USB communication, fast communication, stable and reliable, better compatibility
  
• Integrated overvoltage and overcurrent protection circuits (there is no protection between the two power supplies of the host terminal)
  
• Integrated unibody power supply isolation that provides a stable isolated voltage, no additional power supply required for the isolated terminal
  
• Integrated unibody digital isolation to isolate the signal, reliable and interference-free, low power consumption
  
• Integrated TVS (Transient Voltage Suppressor), effectively suppresses overvoltages and transient voltage spikes in the circuit, lightning-proof and anti-static
  
• Built-in resettable fuse and protection diodes, ensures stable current/voltage outputs, provides overcurrent/overvoltage protection, improves shock resistance
  
• Integrated TTL serial port 3.3V and 5V voltage level switch, allows the user to select the TTL level of the Group B terminal
  
• Aluminum alloy housing with matte polished surface, solid and durable

Specifications:

• Product Type: Industrial Isolated Multi-Bus Converter for USB/RS232/RS485/TTL
• Data rate:
  • 300 to 921,600 bit/s
  • 300 to 600,000 bit/s (RS232 to RS232)
• Group A:
  • USB:
    • Operating voltage: 5 V
    • Connection: USB-B
    • Fuse: 200 mA resettable fuse, isolated output
  • RS232:
    • Connector: DB9 connector
    • Fuse: TVS protection, surge protection, ESD protection
    • Transmission mode: Point to point
  • TTL (UART):
    • Operating voltage: 5 V
    • Connection: screw terminal
    • Pin assignment: TXD, RXD, GND, 5V
    • Fuse: clamp protection diode, overvoltage protection, reverse polarity protection, shockproof, clamp-proof
• Group B:
  • RS485:
    • Connection: screw terminal
    • Pin assignment: A+, B-, GND
    • Direction control: Automatic hardware control
    • Backup:
    • Lightning protection, surge protection, ESD protection
    • Transmission mode: Point-to-multipoint connections (up to 32 nodes, for 16 or more nodes, the use of repeaters is recommended)
  • RS232:
    • Connector: DB9 connector
    • Fuse: TVS protection, surge protection, ESD protection
    • Transmission mode: Point to point
  • TTL (UART)
    • Operating voltage: 3.3/5 V
    • Connection: screw terminal
    • Pin assignment: TXD, RXD, GND
    • Fuse: clamp protection diode, overvoltage protection, reverse polarity protection, shockproof, clamp-proof
• Operating environment:
  • Operating temperature: -25 °C to 85 °C
  • Humidity: 5% RH to 95% RH
• Operating systems: Windows 11 / 10 / 8.1 / 8 / 7 / XP

Note: For full communication between Group A and Group B terminals, only one pair of devices is paired at a time.

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