diymore | USB-to-RS485/RS232 Communication Module Bidirectional Half-Duplex Serial Port Converter Communication Module USB Interface

Product Features:1. Supports USB-to-RS485/RS232 communication (switchable via DIP switch).2. Utilises the latest CH343G chip for plug-and-play functionality, compatible with Windows, macOS, Linux and other systems.3. On-board TVS (Transient Voltage Suppressor) effectively mitigates surge voltages and transient spikes within the circuit, providing lightning and electrostatic protection.4. On-board self-resetting fuse and protection diode ensure stable current and voltage output, prevent overcurrent/overvoltage, and enhance surge resistance.5. Three on-board LED indicators facilitate monitoring of power and signal transmission status.Product Specifications:Product Type: Industrial-grade USB to RS485/232 converterCommunication Rate: 50bps to 1,000,000bpsHost Interface: USBDevice Interface: RS485/RS232 (switchable via DIP switch)USB Interface:Operating Voltage: 5VInterface Type: USB Type-A connectorInterface Protection: 200mA resettable fuse, ESD protectionTransmission Distance: Approx. 5 metresRS485/RS232 Interface:Interface Type: Terminal blocksInterface Pins: GND, A+ (TXD), B- (RXD)Direction Control: Hardware automatic detection and control of data transmission directionInterface Protection: Provides 600W lightning protection, surge protection, and 15KV electrostatic protection (on-board 120Ω balancing resistor)Transmission Distance: RS485 (approx. 1200 metres), RS232 (approx. 10 metres) at low data ratesTransmission Mode: Point-to-multipoint (up to 32 nodes; repeater recommended for 16+ nodes). RS232 (point-to-point: single interface supports one device only; multiple connections require repeater).Indicator Lights:PWR: Power indicator. Illuminates when USB connection detects voltage.TXD: Transmission indicator. Illuminates when data is sent from USB port.RXD: Receive indicator, illuminates when data is received via USB portUSB to RS485/RS232 Interface Specifications:GND: Peripheral connection groundA+TXD: Connects to RS485 line A, connects to RS232 line RXDB-RXD: Connects to RS485 line B, connects to RS232 line TXDProduct Listing:Module ×1