USB 2.0 to RS485 Converter — Industrial, High-Stability Communications Key benefits - Reliable long-distance RS485 link: rated for transmission distances up to 1000 meters and tested up to 1200 meters at 9600 baud, reducing need for repeaters on many installations. - Industrial-grade stability and protection: uses the CP2102 (SILICON LABS) industrial chip for stable USB-to-serial conversion and includes robust protections to reduce downtime from electrical faults. - High performance and wide compatibility: supports high baud rates up to 921600 for fast communications and works across common operating systems with hot-pluggable USB convenience. Main specifications and features - Function: USB 2.0 to RS485 converter, compatible with standard 485 interfaces. - Main chip: CP2102 (SILICON LABS) — industrial-grade USB-to-UART controller for reliable conversion and driver support. - Lead pins / signal contacts: A+, B, GND, GND, 5V0. - Transmission distance: up to 1000 meters in standard conditions; tested up to 1200 meters at 9600 baud. - Baud rate: supports up to 921600 (substantially higher than 115200) to accommodate high-speed data needs. - Protection: industrial protection including TVS transient suppression, 15 kV ESD protection, AB signal line short-circuit protection, and power-supply short-circuit protection (designed so a short circuit does not burn the device). - USB: USB 2.0 interface; supports hot-plug operation. - OS compatibility: multi-system support — Windows 98 / 2000 / 2003 / 2008 / XP / Win7 / Win8 / Win10 / Vista and Linux. Why customers choose this converter - Minimizes field failures: industrial protections (TVS, 15 kV ESD, short-circuit safeguards) help the device survive common disturbances found in industrial and field environments. - Simplifies integration: standard RS485 pinout and USB 2.0 interface allow quick connection to PCs, embedded systems, or gateways without complex hardware changes. - Handles long link runs: long-distance capability (1,000 m typical, tested to 1,200 m at 9600 baud) suits wide-area sensor networks, building automation wiring, and factory floor connections. - Flexible performance: supports very high baud rates when low-latency or high-throughput links are required, while remaining compatible with legacy slower equipment. Practical applications - Industrial automation: connect a PC or industrial controller to PLCs, motor drives, or field devices over RS485 for configuration, monitoring, and control. - Building management and metering: link energy meters, HVAC controllers, and access-control devices distributed over long cable runs without repeaters. - Remote telemetry and data logging: gather sensor data from distributed instruments at distances up to 1 km+ to a central computer or data logger using a USB-equipped gateway. Notes and installation tips - Observe correct wiring for A+, B and the GND pins; 5V0 pin is provided per the unit’s pinout. - For maximum tested distances, use proper twisted-pair cable, good grounding practice, and terminate the RS485 line where required. - Install the CP2102 drivers if the host OS does not provide native support; the device supports hot-plugging for convenient deployment. Includes industrial-grade CP2102 USB-to-UART conversion, RS485 interface compatibility, specified pinout (A+, B, GND, GND, 5V0), 15 kV ESD and TVS protection, short-circuit safeguards, support for up to 921600 baud, USB 2.0 hot-plug, and broad Windows/Linux compatibility.