Waveshare USB To RS485 (C) Industrial Grade Isolated Bidirectional Converter, FT232RNL Chip, Onboard Isolated Transceiver And TVS, Up To 1.2km RS485 Transmission Distance

Waveshare USB To RS485 (C) Industrial Grade Isolated Bidirectional Converter, FT232RNL Chip, Onboard Isolated Transceiver And TVS, Up To 1.2km RS485 Transmission Distance

Waveshare USB to RS485 (C) Industrial Grade Isolated Bidirectional Converter is a high-performance USB to RS485 communication converter designed for industrial applications requiring reliable, long-distance data transmission. Powered by the advanced FT232RNL USB UART interface chip, this converter ensures stable and efficient communication between USB-enabled devices and RS485 networks. It features an onboard isolated transceiver, power isolation, and TVS surge protection, offering superior resistance against voltage spikes, electrical interference, and harsh industrial environments.

Built for durability and dependable performance, this converter supports bidirectional half-duplex RS485 communication with a transmission distance of up to 1.2 kilometers, making it ideal for industrial automation, data acquisition systems, PLC communication, monitoring equipment, and embedded control applications. Its industrial-grade isolation design enhances safety while protecting connected devices from transient voltage damage and signal interference.

User Manual / Datasheet / Example Codes Etc.

Features

• Supports USB to RS485 bidirectional conversion
• Onboard original FT232RNL chip, enabling high-speed, stable, and reliable communication with excellent compatibility
• Onboard isolated transceiver, integrated electrical isolation and ESD protection, effectively improving communication stability and anti-interference capabilities in industrial environments
• Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic
• Onboard resettable fuses and protection diodes, ensures the stable current/voltage outputs, provides over-current/over-voltage protection, improves shock proof performance
• Onboard 3 LEDs for indicating the power and transceiver status

Specifications

• PRODUCT TYPE: Industrial grade isolated USB to RS485 converter
• Baud rate
• FT232RNL chip
• 300bps ~ 512000bps
• Host port: USB
• Device port: RS485
• USB
• Operating voltage: 5V
• Connector: USB-A
• Protection: 200mA resettable fuses, ESD protection
• Transmission distance: Approx. 5m
• RS485
• Connector: Screw terminal
• Pins: A+, B-, GND
• Direction control: Hardware automatic control
• Protection: 600W Lightningproof, anti-surge, and 15KV ESD protection (onboard 120R balancing resistor)
• Isolation voltage: Up to 2.5KV opto-isolation
• Transmission distance: Approx. 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, lights up when there is USB connection and voltage is detected
• TXD: Red TX indicator, lights up when the USB port sends data
• RXD: Red RX indicator, lights up when the device port sends data back
• Operating environment
• Temperature: -40℃ ~ 85℃
• Humidity: 5%RH ~ 95%RH
• Operating system: Mac, Linux, Android, WinCE, Windows 11 / 10 / 8.1 / 8 / 7 / XP

Package Includes

• 1x USB TO RS485 (C)
• 1x USB Type-A male port to Type-A female port cable ~1.2m
• 1x Screwdriver

Onboard Original Chip

Onboard original FT232RNL chip, providing better stability and compatibility,

built-in Lightningproof tube, resettable fuses, ESD and TVS protection circuits, etc.

Dimensions