USB to 485 RS485/422/232/TTL Converter

USB to RS‑485/RS‑422/RS‑232/TTL Master‑Slave Converter

This USB serial converter bridges a PC’s USB port to robust multi‑point industrial buses—RS‑485, RS‑422, RS‑232, or TTL—using a high‑speed 2‑chip bridge architecture. The device features a full‑duplex TMS320F28379D core with open‑drain drivers, allowing safe operation from 1.8 V to 5 V logic levels and seamless integration with standard UART, Modbus RTU, or Profibus devices.

Designed for long‑distance data links, the converter supports up to 12 km of twisted pair with 0.5 mA differential current and achieves 1 Mbps throughput without flow control. Plug‑and‑play class‑C driver software supplies simple virtual COM ports, while the built‑in automatic address “ping” function streamlines multi‑node configuration.

• Interface I/O: RS‑485/422/232/TTL, 1.5–5 V, 2 Mbps
• Dual‑Channel Buffer: Differential drivers, isolated at 1 kV
• USB Connectivity: USB 2.0 Hi‑Speed, Class‑C drivers, 500 mA
• Common Use Case: Remote SCADA, PLC network, and industrial automation links