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Isolated USB to RS-232/RS-422/RS-485 Converter

Isolated USB to RS-232/RS-422/RS-485 Converter

The USB485i from 3OneData is an industrial USB to RS-232/485/422 converter. It can be powered from the USB port or from a 9-48VDC external power supply or both of them. It supports DIN-Rail and wall mounting installation. It will operate with Windows 7 and 8 operating systems and features a wide working temperature, 2KVAC isolation protection and a 3 year warranty.

These are industrial converters and are designed for high reliability. RS-485 and RS-422 connections are made via pluggable screw terminals and DIN rail mount clips can be purchased separately for easy installation.


  • Convert USB to 1 RS-232 or RS-485 or RS-422
  • Tx and Rx Led Indicators
  • Baud rate: 300 to 115200 bps
  • RS-485/422 can establish at most 32 nodes
  • RS-485/422 transmit distance can reach up to 1200m
  • Serial port support 2KVAC isolation protection
  • Auto sense serial signal rate, band rate: 300?115200bps
  • Industrial grade design, IP30 degree of protection
  • No fan, low consumption design
  • Plug and play, 9-48VDC external power supply or USB power supply or both of them
  • Storage temperature: -40??85?; Humidity: Relative humidity 5% to 95%



Power:9 to 48 V DC or AC
Current Consumption:32 mA
Standards:EIA RS-232, RS-485, RS-422
RS-232 signals:TX, RX, GND
RS-485 signals:D+, D-, GND
RS-422 signals:R+, R-, T+, T-, GND
Baudrate:300 to 115200 bps
Loading:Up to 32 nodes
Transmission Distance (RS-422/RS-485):up to 1200 m
Isolation:2 kV
Connector USB)A-Type femaile
Connector (RS-232)Male DB-9
Connector (RS-422/RS-485):Pluggable screw terminals
Working Temperature:-20 to 80 ºC
Storage Temperature:-40 to 85 ºC
Working Humidity:<95 %
Dimensions:100 × 69 × 22 mm


SKU:  TOD-010

3 available

3 available

Qty. Price
(AUD ex. GST)
1 to 4 $149.00
5 to 9 $134.10 (10% off)
10+ $126.65 (15% off)