USB to RS485 communication module, bidirectional semi-duplex serial line converter

USB 2.0 to RS485 converter and docking station for all types of 485 interfaces, range up to 1000 meters; Main chip: CP2102 (SILICON LABS), high-quality and ultra-stable industrial chip. Pins: A+, B-, GND, GND, 5V0; Industrial product with 15 kV ESD protection and TVS surge protection. Features: 1. Industrial-grade protection: protection against overvoltage, electrostatic discharge, overcurrent, short circuits on the AB signal line, and power supply short circuits (short circuits do not cause damage). 2. Range up to 1200 meters (tested at 9600 bps). 3. Supports a data rate of 921,600 bps, significantly higher than 115,200 bps, and higher mutual transmission rate. 4. Multi-system compatibility: hot-pluggable (WIN98/CE/2000/2003/2008/XP/WN7/WN10/Vista/Linux/Mac OS X). USB interface also hot-pluggable. 5. Automatic identification and control of data transmission direction, without synchronization signals (RTS, DTR, etc.) or jumper configuration. Mode conversion possible for compatibility with existing interface software and hardware. 6. TXD and RXD LEDs. Specifications: 1. Power Supply: USB 5V 2. Range: Up to 1200m (9600 bps) 3. Chip: CH340 4. Communication Protocol: Hardware only, no protocol limitations 5. Bit Rate: Up to 921,600 bps, supports higher bit rates for simultaneous transmissions 6. Protections: Overvoltage protection, ESD protection, surge protection, AB signal line short circuits, and power supply short circuits (short circuits do not cause damage) 7. Temperature Range: -40°C to 80°C 8. External 5V power supply with current-limiting fuse 9. Compatible Operating Systems: Hot-swappable, compatible with Windows 98/CE/2000/2003/2008/XP/WV7/WV8/WV10/Vista/Linux/Mac OS X, hot-pluggable USB interface 10. Automatic identification and control of data transmission direction