USB 2.0 to RS485 converter and all kinds of 485 interface docking stations, transmission distance up to 1000 meters; Main chip: CP2102 (SILICON LABS), industrial chip, high quality, super stable. The main pins include: A+, B-, GND, GND, 5V0; Industrial product, with 15KV ESD protection and surge protection Features: 1. Industrial-level protection: TVS transient suppression protection, ESD protection, surge protection, AB signal line short circuit protection, and power supply short circuit protection (short circuit does not burn 2. Transmission distance up to 1200 meters (tested at 9600); 3. Supports 921600 baud rate, which is much higher than 115200, and the baud rate of pairwise mutual transmission is higher 4. Multiple systems support hot plugging, WIN98 / / 2000/2003/2008 / xpwn7n8 / wn10 Vista / Linux / system, and the USB interface can be hot plugged />5. Automatic identification and control of data transmission direction, without any handshake signal ( TXD , DTR, etc.) and