USB-i485 - Converter

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The USB-i485 module is a cost-effective way to convert RS485 or RS422 industrial buses to a USB interface. When connected to a PC USB port the USB-i485 module is automatically detected and is installed as a native COM port which is compatible with any existing serial communication application.

Muliple modules can be installed when using USB hubs thus allowing a hassle-free configuration of a multi serial system without any IRQ or DMA configuration. 1500 Vdc isolation between the USB port and RS485/RS422 protects the PC from spykes or possible misconnections in the communication bus.


Get the Virtual COM driver that best suits your platform at




- Computer interface: USB V1.1 Plug and Play

- Operational system virtual serial port driver

- Supports Windows 7/Vista/XP/2008Server/2003Server/98/ME/2000/CE, MAC and Linux 2.4.20 or above. 64 bit options for latest operating systems

- Field Interfaces: RS485 Half Duplex (dual buses), RS485 Full Duplex or RS422

- Jumper selected RS485 / RS422

- Automatic flow control for RS485 Half Duplex 120 Ohms internal resistors termination enabled by jumpers

- Transmission rate: from 300 bps to 250 kbps

- MaximumRS485/RS422 cable length: 1200 m

- Maximum number of devices in the RS485 network

- Half Duplex: 2 x 32 devices

- Full Duplex: 32 devices

- Data transmission and reception LED indicators

- Power: from the USB port

- Consumption: <100 mA

- Isolation: 1500 Vdc from USB interface and the RS485/RS422 interfaceRS485/422 bus protection: ±60 Vdc, 15 kV ESD

- USB connection: Mini-B connector A 1.5 m cable with plugs mini-B and A is provided with the module

RS485/422 connector: screw terminal type accepting 1.5 mm² (16 AWG) wires ABS enclosure: 70 x 60 x 18 mm

- Operating environment: 0 to 70°C, 10 to 90% relative humidity, non-condensing



  • 8816001039

    USB-i485 USB Converter to dual RS485 Isolated ports

  • Downloads


Flyer USB-i485 Converter

Download - Flyer USB-i485 Converter

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Convertitore-USB-i485-ITA - Volantino commerciale (Italian)

Download - Convertitore-USB-i485-ITA - Volantino commerciale (Italian)

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(PDF - 1.37 Mb)


Operating Manual for USB-i485

Download - Operating Manual for USB-i485

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(PDF - 1.28 Mb)


CE - D.O.C. Conversor Digital USB-i485

CE Declaration of Conformidity.

Download - CE - D.O.C. Conversor Digital USB-i485

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(PDF - 0.09 Mb)


Gateways - Selection guide

Get to know our Gateways, compare its features and choose the most suitable for your needs.

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