USB To RS232/RS485 converter Features and benefits - Uses the original FT232RNL USB-to-serial chipset for fast, stable, and reliable communication with wide compatibility to USB hosts and serial peripherals. - RS232 mode protection: onboard TVS (Transient Voltage Suppressor) protects the circuit from surge voltages and transient spikes, delivering lightningproof and anti-electrostatic protection for connected devices. - RS485 mode protection: onboard self-recovery fuse and protection diodes help maintain stable current and voltage, provide over-current and over-voltage protection, and improve shock resistance in challenging environments. - Flexible interface configuration: an onboard RS232/RS485 communication switching circuit is controlled by a switch for easy mode selection. - RS485 termination control: the RS485 interface includes a 120 ohm termination resistor that can be enabled or disabled via a switch to ensure proper line impedance matching in your network. Technical highlights - Chipset: FT232RNL for USB to serial conversion. - Protection features: TVS diode for RS232, self-recovery fuse and protection diodes for RS485. - Interface switching: switch-configured RS232/RS485 mode. - Termination: 120R resistor on the RS485 interface, switch-enabled/disabled. Use scenarios - PC to RS232 devices: connect a computer or handheld terminal to legacy equipment such as serial printers, modems, serial consoles, or laboratory instruments that use RS232. - PC to RS485 networks: integrate a USB host with RS485 devices in Modbus networks, PLCs, sensors, or motor controllers in industrial automation and building management systems. - Field maintenance and diagnostics: quickly establish serial connections for configuration, data acquisition, or firmware update tasks involving RS232 or RS485 peripherals. Compatibility and practicality - Broad compatibility with standard USB hosts and common serial peripherals thanks to the FT232RNL chipset. - Designed to support reliable performance across typical serial communication scenarios, with protective features to enhance longevity in demanding environments. Notes - The RS232/RS485 interface is switched via a control switch, and the RS485 termination resistor is enabled or disabled via a switch to suit wiring and impedance requirements.