Industrial USB TO RS485 Bidirectional Converter - USB TO RS485 (B)

Item number 22456 Brand Waveshare Model USB TO RS485 (B) Share Write a review
Industrial USB TO RS485 Bidirectional Converter - USB TO RS485 (B)

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Industrial USB TO RS485 Bidirectional Converter, Onboard original CH343G, Multi-Protection Circuits


  • 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, lightning proof & 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


PRODUCT TYPEIndustrial Grade USB to RS485 converter
BAUDRATE300bps ~ 3Mbps
USBOperating voltage5V
Protection200mA self-recovery fuse, ESD protection
Transmission distanceAbout 5m
RS485ConnectorScrew terminal
PinsA+, B-, GND
Direction controlHardware automatic control
Protection600W lightningproof and surge-suppress, 15KV ESD protection (onboard 120R balancing resistor)
Transmission distanceAbout 1.2km(low rate)
Transmission modePoint-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more)
LED INDICATORSPWRRed power indicator, light up when there is USB connection and voltage is detected
TXDRed TX indicator, light up when the USB port sends data
RXDRed RX indicator, light up when the device ports send data back
OPERATING ENVIRONMENTTemperature-15℃ ~ 70℃
Humidity5%RH ~ 95%RH
OPERATING SYSTEMMac, Linux, Android, WinCE, Windows 10 / 8.1 / 8 / 7 / XP

Onboard original chips:

Onboard Original CH343G And SP485EEN Chips, Providing Better Stability And Compatibility, Built-In Lightning proof Tube, Resettable Fuse, ESD And TVS Protection Circuits, Etc.

Transmission Distance Up To 1.2km

The USB Signal Can Be Converted Into A Balanced Differential RS485 Signal And The Transmission Rate Is Stable. The Reliable Speed Is 300bps ~ 3Mbps, The Transmission Distance Is About 1.2km For RS485, And About 5 Meters For USB.

Multi System Support

Supports Mac, Linux, Android, WinCE, Win11/10/8.1/8/7/XP, Etc.



Brand information
Brand Waveshare
ModelUSB TO RS485 (B)
€ 12,65€ 10,45 Excl. VAT (NL)
Expected delivery date: Tuesday 28 May. ... pieces in stock
Show volume discounts Shipped from € 3,50 (NL) 30 days cooling-off Excellent service

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