USB to RS232/RS485/RS422/TTL Converter

Thanks to protection against lightning, ESD, overvoltage and electrical shock, it is perfect for complex or high-risk environments. It features a rugged metal housing, LED indicators, screw terminal blocks and professional connectors to guarantee ease of use, safety and long service life. Compatible with Windows, Linux, macOS and Android, it is the ideal solution for anyone who needs to convert serial interfaces simply but professionally.

• Genuine FT232RNL chip: guarantees fast, stable and reliable communication, with wide compatibility.
• Built-in power isolation: provides a stable isolated voltage, with no need for an external power supply for the isolated terminal.
• Built-in digital isolation: ensures signal isolation, offering high reliability, strong interference resistance and low power consumption.
• Built-in TVS protection (transient voltage suppressor): protects against voltage spikes and transient overvoltages, with protection against electrostatic discharge (ESD) and lightning.
• Self-resetting fuse and protection diodes: ensure stable current and voltage output, protecting against overcurrent and overvoltage, and improving resistance to electrical shock.
• Automatic, delay-free transmit/receive circuit: guarantees fast and stable communication on all interfaces, without interference between them.
• Built-in 3.3V/5V TTL level converter: lets you select the voltage level via a switch.
• High-quality USB-B and RS232 connectors: ensure smooth, reliable connections.
• Metal housing: rugged, sleek and ready for wall or DIN rail mounting.

• Genuine FT232RNL chip: fast, stable and reliable communication, with improved compatibility
• Built-in power isolation: provides a stable isolated voltage with no need for an external power supply
• Built-in digital isolation: ensures high reliability, low interference and low power consumption
• Built-in TVS: protects against voltage spikes, transient overvoltages, lightning and ESD
• 200 mA self-resetting fuse and protection diodes: stable current and voltage, protection against overcurrent and overvoltage
• 3.3 V / 5 V TTL level translator, selectable via switch
• RS232 interface: male DB9 connector, TVS diode protection, point-to-point mode, baud rate 300 bps ~ 921,600 bps
• RS485/RS422 interface: screw terminal block, automatic direction control, 600 W protection against overvoltage/lightning, 15 kV ESD protection, 120 Ω terminating resistors selectable via jumper, point-to-multipoint mode (up to 32 nodes on RS485, 256 on RS422, use of repeaters recommended beyond 16 nodes), baud rate 300 bps ~ 2 Mbps
• TTL (UART) interface: screw terminal block, TXD, RXD, GND, 5V/3.3V pins, clamp diode protection, over- and under-voltage protection, point-to-point mode, baud rate 300 bps ~ 2 Mbps
• Rugged metal housing, suitable for industrial environments, ready for wall or DIN rail mounting

• Built-in single-block power isolation: guarantees a stable isolated voltage, with no need for an external power supply for the isolated terminal.
• Built-in single-block digital isolation: enables signal isolation, ensuring high reliability, strong interference resistance and low power consumption.

1. USB to RS232/485/422/TTL converter x1
2. DIN rail mounting clip x1
3. Type A to Type B USB cable (~1.2 m) x1
4. Screwdriver x1

• Wiki: www.waveshare.com/wiki/USB_TO_RS232/485/422/TTL