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The Victron RS485 to USB interface — is an adapter for connecting devices with an RS485 interface to a computer via a standard USB port. It is used for configuration, diagnostics, and monitoring of compatible Victron equipment or third-party devices operating via the Modbus-RTU protocol. It does not require an external power supply—it is powered directly from the USB port.
This is a tool for engineers, installers, and integrators working with systems that use RS485 communication.
Key benefits of the RS485 to USB interface cable
- Allows you to connect RS485 devices to a computer via USB
- Compatible with Modbus-RTU — supports the popular industrial protocol
- No drivers required for most operating systems (Plug & Play)
- Compatible with Victron Energy devices featuring RS485
- Compact and lightweight, ideal for field work
- USB-powered – no batteries or adapters required
Technical Specifications
- Part Number: ASS030572018
- Interface 1: USB Type A (to PC or laptop)
- Interface 2: RS485 (3-pin screw terminal or integrated cable – depending on version)
- Cable length: ≈1.8 m
- OS compatibility: Windows, Linux, macOS
- Protocol support: Modbus-RTU, Victron RS485-based systems
- Power supply: via USB (5 V)
- Isolation: galvanically isolated interface
- Temperature range: –10°C … +60°C
Use Cases
- Configuration or diagnostics of Victron devices via RS485
- Connecting third-party devices (meters, BMS, inverters) to Victron systems
- Creating an interface for third-party Modbus equipment
- Integration with SCADA or PC loggers for industrial monitoring
- Use in engineering design, installation, and system maintenance
Compatible Victron Energy products
- SmartSolar MPPT RS (features RS485 for Modbus)
- Multi RS Solar / Inverter RS (for configuration or data exchange)
- Industrial BMS or batteries with RS485 interface
- Integration via Venus OS Large (custom)