Complies with EN1434-3 and CJ/T188-2018 standards; Ultra-low static power consumption; Short-circuit protection; Low power consumption; USB hot-plug compatible; Stable and safe operation; Robust USB-B interface; Compatible with Windows 11, macOS, Linux, and Android; Powered via USB—no external power supply required; Compact design for easy field commissioning and portability; Supports up to 20 slave devices depending on load conditions; No spontaneous self-reception or bit errors within normal operating range; Adjustable communication baud rate from 300 to 9600 bps, supports up to 19200 bps; Communication distance up to 1 km; Bit error rate lower than 1/10000; Slave devices (e.g., water meters, heat meters, gas meters) connected in parallel to the interface; Connect USB module directly to computer’s USB port—the status LED illuminates upon connection; Bus maximum load current: 80 mA; Slave station static current (IS) and dynamic current (It) affect total load capacity; Load calculation example: With IS = 3 mA and It = 20 mA, maximum N = (80 − 20) / 3 = 20; Actual load capacity depends on slave station static/dynamic current, wiring material, and other factors—verify via testing; Color: Black; Material: Plastic; Package includes: 1 × Converter; Other accessories not included; Note: Color may vary slightly due to screen settings and lighting; Measurement tolerance: ±1–3 cm.