USB 2.0 to RS485 Converter (CP2102, Silicon Labs) — Industrial-grade serial interface adapter Key benefits - Reliable long-distance RS485 communication: supports typical transmission up to 1000 meters and has been tested to 1200 meters at 9600 bps, enabling remote device connection without repeaters in many installations. - High-speed, stable data transfer: supports baud rates up to 921600 bps (well above 115200), suitable for high-throughput or low-latency serial applications. - Industrial protection and robustness: built with an industrial CP2102 (Silicon Labs) chip and designed for real-world conditions — ESD protection, signal-line and power short-circuit protection, and resistance to temporary disturbances so short circuits do not damage the device. - Wide system compatibility and hot-plug convenience: works with Windows (98, 2000, 2003, 2008, XP, Vista, 7, 8, 10) and Linux, and supports USB hot-plugging for simple installation and maintenance. What it does (functions and performance) - Converts USB 2.0 to a standard RS485 differential interface for direct connection to RS485 networks and devices. - Uses the CP2102 Silicon Labs main chip for stable USB-to-serial conversion and reliable driver support. - Supports high baud rates up to 921600 bps and pairwise data transmission over RS485. - Transmission distance: rated to 1000 meters in typical conditions; tested to 1200 meters at 9600 bps. Protection and durability - Industrial-grade protection against electrostatic discharge (ESD) with 15 kV rating. - Signal-line short-circuit and power short-circuit protection; designed so short circuits will not burn the device. - Protection against temporary suppression/transient disturbances to maintain reliable operation in noisy environments. Physical interface and wiring - USB 2.0 host interface for power and data. - RS485 lead pins: A+, B, GND, GND, 5V0 — suitable for direct docking to a variety of RS485 interfaces and devices. Compatibility and installation - Compatible with Windows 98, 2000, 2003, 2008, XP, Vista, 7, 8, 10 and Linux. - USB interface supports hot-plugging for quick connection or replacement without powering down the host. Practical use scenarios - Industrial automation: connect PLCs, motor controllers, and distributed I/O over RS485 for reliable control and monitoring across factory floors. - Building management and energy monitoring: link meters, HVAC controllers, and access-control devices located up to 1000+ meters away to a central PC or gateway. - Field instrumentation and remote sensors: provide a robust USB-to-RS485 bridge for data collection from long-run sensors or environmental monitoring stations. Technical summary - Main chip: CP2102 (Silicon Labs), industrial-grade - Interface: USB 2.0 to RS485 - RS485 connector pins: A+, B, GND, GND, 5V0 - Baud rate: up to 921600 bps - Transmission distance: typically up to 1000 meters; tested to 1200 meters at 9600 bps - Protections: 15 kV ESD, signal-line short-circuit, power short-circuit (short circuit does not burn), transient suppression This adapter is intended for industrial and professional RS485 applications where long-distance communication, high baud rates, and robust protection are required.