Product details
Waveshare Industrial Isolated USB to 4-Channel RS485 Converter (B)– CH344L Chip & Multi-Protection
The Waveshare Industrial Isolated USB to 4-Channel RS485 Converter (B) is an industrial-grade USB to RS485 converter designed to connect and communicate with multiple RS485 serial devices through a single USB interface. Powered by the CH344L chip, it provides stable communication across 4 isolated RS485 channels with a baud rate range of 1200bps to 460800bps.
The converter uses a 5V USB-B interface and provides hardware automatic direction control for convenient data transmission. Its isolated design combines power isolation and digital signal isolation to improve reliability and reduce interference, while built-in 600W lightning/surge protection, 15KV ESD protection, a 500mA resettable fuse, and protection diodes provide added protection against electrical faults.
The RS485 interface supports point-to-multipoint communication with up to 32 nodes, while the transmission distance can reach approximately 1.2km at low baud rates. A built-in 120Ω termination resistor can be enabled or disabled using the DIP switch.
With an industrial aluminium alloy enclosure, 10 LED indicators, and wall-mount or rail-mount support, this multi-channel RS485 converter is well suited for industrial automation, equipment monitoring, Modbus communication, and other applications requiring reliable multi-device serial communication.
Features:
• Adopts the original CH344L chip for faster communication, stability, and compatibility.
• Supports USB to 4-ch isolated RS485, making it easier to expand multiple RS485 industrial serial devices
• Onboard unibody power supply separation delivers stable isolated voltage and does not require an additional power source for the isolated terminal.
• Onboard unibody digital isolation enables signal separation, excellent reliability, robust anti-interference, and low power consumption.
• Onboard TVS (Transient Voltage Suppressor) effectively suppresses surge and transient spike voltage in the circuit, lightningproof, and ESD protection.
• Onboard self-recovery fuse and protection diodes assure consistent current/voltage outputs, provide over-current/over-voltage protection, and increase shockproof performance.
• Onboard RS485 output terminal 120R resistors are enabled/disabled by DIP switch.
• 10 LEDs to indicate power, device settings, and transceiver condition.
• Industrial grade metal case, allows wall-mount and rail-mount installation, solid and elegant, simple to install.
The Waveshare Industrial Isolated USB to 4-Channel RS485 Converter (B) is an industrial-grade USB to RS485 converter designed to connect and communicate with multiple RS485 serial devices through a single USB interface. Powered by the CH344L chip, it provides stable communication across 4 isolated RS485 channels with a baud rate range of 1200bps to 460800bps.
The converter uses a 5V USB-B interface and provides hardware automatic direction control for convenient data transmission. Its isolated design combines power isolation and digital signal isolation to improve reliability and reduce interference, while built-in 600W lightning/surge protection, 15KV ESD protection, a 500mA resettable fuse, and protection diodes provide added protection against electrical faults.
The RS485 interface supports point-to-multipoint communication with up to 32 nodes, while the transmission distance can reach approximately 1.2km at low baud rates. A built-in 120Ω termination resistor can be enabled or disabled using the DIP switch.
With an industrial aluminium alloy enclosure, 10 LED indicators, and wall-mount or rail-mount support, this multi-channel RS485 converter is well suited for industrial automation, equipment monitoring, Modbus communication, and other applications requiring reliable multi-device serial communication.
Features:
• Adopts the original CH344L chip for faster communication, stability, and compatibility.
• Supports USB to 4-ch isolated RS485, making it easier to expand multiple RS485 industrial serial devices
• Onboard unibody power supply separation delivers stable isolated voltage and does not require an additional power source for the isolated terminal.
• Onboard unibody digital isolation enables signal separation, excellent reliability, robust anti-interference, and low power consumption.
• Onboard TVS (Transient Voltage Suppressor) effectively suppresses surge and transient spike voltage in the circuit, lightningproof, and ESD protection.
• Onboard self-recovery fuse and protection diodes assure consistent current/voltage outputs, provide over-current/over-voltage protection, and increase shockproof performance.
• Onboard RS485 output terminal 120R resistors are enabled/disabled by DIP switch.
• 10 LEDs to indicate power, device settings, and transceiver condition.
• Industrial grade metal case, allows wall-mount and rail-mount installation, solid and elegant, simple to install.
