USB Type-C to RS485 Converter Module with CH340 Chip

The USB Type-C to RS485 converter module is designed for robust and efficient serial communication, bridging the gap between USB Type-C enabled devices and RS485 industrial control systems. Featuring the CH340 chip, it ensures stable data transmission and is suitable for a wide range of applications.

• LED Indicators: Equipped with RXD, TXD, and power supply LED indicators for easy status monitoring.
• Serial Port Protection: Includes input protection for enhanced reliability.
• CH340 Chip: Utilizes a swing limiting rate driver to minimize EMI and signal reflection, supporting error-free data transmission up to 500Kbps.
• Multi-Machine Support: The receiver input impedance with 1/4 unit load allows for multi-machine communication, connecting up to 128 devices on the bus.
• Industrial Grade: Designed for industrial environments with an operating temperature range of -40°C to +85°C.
• Hot-Swappable: Supports hot-swapping without signal blocking.
• Terminal Resistance: Includes a 120Ω terminal resistance for improved stability over long cable lengths (over 200m).
• Overvoltage Protection: Integrated with a transient suppression TVS 600W diode for superior overvoltage protection.
• Signal Integrity: A 10Ω current protection resistor enhances RS485 signal integrity.
• Optimized Layout: All RS485 and TTL signals are routed on one side to ensure signal quality.

Typical Applications:

• Industrial automation control
• Building automation
• Access control systems
• Data acquisition systems
• POS systems
• Security monitoring