Isolated USB-C to RS485 Converter Module, 2 Mbps Reference

Connect a compatible RS485 link to a USB-C host while separating the board's power and communication paths. This converter module suits builders planning a matched serial interface for a controlled electronics installation.

• ✅ Bridge two interface types — The module converts a compatible USB connection to RS485.
• ✅ Separate power and communication paths — Dedicated isolation components are described for both.
• ✅ Wire through screw terminals — A KF301 block provides the RS485 connection point.
• ✅ Use automatic direction control — Automatic commutation handles the described transmit/receive switching.

A Bare Interface Board for a Matched Serial Link

Check host drivers, RS485 wiring and baud rate before integration. The stated maximum communication rate is 2 Mbps under suitable conditions; the complete link and cable determine actual operation.

A 120-ohm termination is included by default and must suit the bus topology. No verified isolation-withstand voltage is supplied, so do not treat the module as a certified safety barrier or mains isolation device.

Technical details

• Interfaces: USB-C and RS485
• Maximum rate reference: 2 Mbps
• Isolation: power and communication described
• RS485 terminal: 5.08 mm-pitch KF301
• Direction: automatic
• Default termination: 120 ohms
• USB connection reference: C-to-C data/power
• Board measures: TVS and fuses described
• Battery and wireless functions: none

Match the host, bus termination and isolation requirements before adding the converter.

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