USB to RS485 Converter with CH343G, Bidirectional Adapter

Industrial quality USB to RS485 bidirectional interface converter. It features embedded protection circuits such as lightning-proof, resettable fuse, ESD protection, and TVS diode, etc. 

Waveshare SKU: 22456
Waveshare Part Number: USB TO RS485 (B)

Assembled with original CH343G and SP485EEN chips. Due to its stable communication, it is an ideal choice for industrial control equipment and/or applications with high communication requirement. 

For more information have a look at the Waveshare Wiki page.Waveshare Wiki page:
www.waveshare.com/usb-to-rs485-b.htm

Features

• Support USB to RS485 bidirectional conversion
• Fast communication, stable and reliable, better compatibility
• Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic
• Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance
• 3 LEDs for indicating the power and transceiver status

Specifications

• Industrial Grade USB to RS485 converter
• Host port: USB
• Device port: RS485
• Baudrate: 300bps ~ 3Mbps
• USB
  • Operating voltage 5V
  • Connector USB-A
  • Protection 200mA self-recovery fuse, ESD protection
  • Transmission distance About 5m
• RS485
  • Connector Screw terminal
  • Pins A+, B-, GND
  • Direction control Hardware automatic control
  • Protection 600W lightningproof and surge-suppress, 15KV ESD protection (onboard 120R balancing resistor)
  • Transmission distance About 1.2km(low rate)
  • Transmission mode Point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more)
• LED indicators
  • PWR Red power indicator, light up when there is USB connection and voltage is detected
  • TXD Red TX indicator, light up when the USB port sends data
  • RXD Red RX indicator, light up when the device ports send data back
• Operating environment
  • Temperature -15℃ ~ 70℃
  • Humidity 5%RH ~ 95%RH
• Operating system: Mac, Linux, Android, WinCE, Windows 11 / 10 / 8.1 / 8 / 7

Package Includes

1 x USB to RS485 Interface Converter
1 x USB-A male to female cable
1 x Screwdriver