The Waveshare USB to RS485 Adapter is an industrial-grade converter designed for robust and reliable communication between USB ports and RS485 devices. It is available in two driver versions: the FT232 version and the CH343G version, both supporting automatic hardware direction control, long transmission distances of up to 1.2km (at a low baud rate), and protection features like lightningproof, surge suppression, and ESD protection. These adapters are ideal for industrial applications requiring multi-node communication in point-to-multipoint configurations, supporting up to 32 nodes.
Specifications of Waveshare USB to RS485 Adapter
FT232 Version
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Product Type: Industrial Grade USB to RS485 converter
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Host Port Connector: USB-A
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Device Port Connector: Screw terminal (RS485, A+, B-, GND)
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Baud Rate: 300bps ~ 921600bps
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USB Operating Voltage: 5V
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Protection: 200mA self-recovery fuse, ESD protection
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Transmission Distance: About 1.2km (low rate)
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Transmission Mode: Point-to-multipoints (up to 32 nodes, repeaters recommended for more than 16 nodes)
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Direction Control: Automatic hardware direction control
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RS485 Protection: 600W lightningproof, surge suppression, 15KV ESD protection (onboard 120R balancing resistor)
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LED Indicators:
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PWR: Red power indicator, lights up when USB is connected and voltage is detected
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TXD: Red TX indicator, lights up when sending data via USB
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RXD: Red RX indicator, lights up when receiving data from device ports
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Operating Temperature: -15°C ~ 70°C
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Operating Humidity: 5%RH ~ 95%RH
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Supported Operating Systems: Mac, Linux, Android, WinCE, Windows 11/10/8.1/8/7
CH343G Version
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Product Type: Industrial Grade USB to RS485 converter
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Host Port Connector: USB-A
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Device Port Connector: Screw terminal (RS485, A+, B-, GND)
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Baud Rate: 300bps ~ 3Mbps
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USB Operating Voltage: 5V
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Protection: 200mA self-recovery fuse, ESD protection
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Transmission Distance: About 1.2km (low rate)
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Transmission Mode: Point-to-multipoints (up to 32 nodes, repeaters recommended for more than 16 nodes)
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Direction Control: Automatic hardware direction control
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RS485 Protection: 600W lightningproof, surge suppression, 15KV ESD protection (onboard 120R balancing resistor)
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LED Indicators:
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PWR: Red power indicator, lights up when USB is connected and voltage is detected
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TXD: Red TX indicator, lights up when sending data via USB
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RXD: Red RX indicator, lights up when receiving data from device ports
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Operating Temperature: -15°C ~ 70°C
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Operating Humidity: 5%RH ~ 95%RH
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Supported Operating Systems: Mac, Linux, Android, WinCE, Windows 11/10/8.1/8/7