Fully Isolated RS-232 to RS-422/RS-485 Converter and RS-422/RS-485 Repeater

Fully Isolated RS-232 to RS-422/RS-485 Converter and RS-422/RS-485 Repeater

SKU: TOD-002

Converts RS-232, RS-422 or RS-485 to RS-422 and RS-485 through a 2.5 kV optical isolation barrier. Female DB-9 for RS-232 and screw terminals for all other connections.

3onedata
  • Manufacturer: 3onedata
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The SW485SGI/C is an isolated converter and repeater for serial networks. It takes RS-232, RS-422 or RS-485 on one side, converts it through a 2.5 kV optical isolation barrier and provides RS-422 or RS-485 on the other side.

It can be used as a serial converter (converting between RS-232 and RS485/RS-422) or as an isolated repeater for an RS-485 or RS-422 network. This allows you to extend the length of your RS-485 or RS-422 transmission lines or isolate segments of the line from other sections. It's powered externally by 12 to 36 V AC or DC and requires no configuration or programming.

These are industrial converters and are designed for high reliability. In addition to optical isolation the converter features 600 W surge protection. RS-485 and RS-422 connections are made via pluggable screw terminals and DIN rail mount clips can be purchased separately for easy installation.


  • Power supply:12 to 36 V DC or AC
  • Current Draw: 100 mA static, 300 mA dynamic
  • 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
  • Baud rate: 300 to 115200 bps
  • Loading: Up to 128 nodes
  • Transmission Distance: (RS-422/RS-485):up to 1800 m at 9600 bps
  • Port Protection: 600 W surge, 15 kV static discharge
  • Isolation: 2.5 kV, 600 W surge protection
  • Connector: (RS-232)Female DB-9
  • Connector: (RS-422/RS-485):Pluggable screw terminals
  • Working Temperature: -20 to 80 ºC
  • Storage Temperature: -25 to 85 ºC
  • Working Humidity: <95 %
  • Connection Type: Pluggable screw terminal connections for RS-422 and RS-485 and Female DB-9 socket for RS-232
  • Automatic data flow control for conversion of the full duplex RS-232 and RS-422 to  the half duplex RS-485
  • Automatic signal rate sensing, zero delay automatic transmit
  • Dimensions: 100 × 69 × 22 mm
  • Housing Material: Steel 
    • SKU
      TOD-002
    • Weight
      0.5 kg
    • Dimensions (L x W x H)
      19 x 15 x 6 cm

Faulty Goods and Warranty

Where such goods have been supplied we undertake to repair or replace them as quickly as possible.Prior to returning faulty items, please contact us with a description of the fault as one of our engineers might be able to assist you by resolving the issue over the phone.
A Warranty form must be filled out and returned with any goods.

Our standard warranty period is 12 months from the date of purchase unless stated otherwise.

Other warranty periods:

Labjack Products: 5 Years
Atop Products: 3 Years
MeanWell Products: 3 Years
Terracom Products: 3 Years

Warranty is subject to us being satisfied that a defect was caused by defective workmanship or materials and was not caused by or was not substantially contributed to by other factors beyond our control including incorrect installation, alterations or modifications of the product not recommended by the manufacturer.

Returns Policy

If you are dissatisfied with our goods you may return them within 14 days of the dispatch date. Contact us for an authorisation and we will refund your purchase less shipping costs and restocking fees. All returned goods MUST be in AS NEW condition including ALL PACKAGING and DOCUMENTATION / MANUALS etc.

Please note:

  • The product returned will attract a 20% restocking fee.
  • The customer must pay the delivery costs.
  • Non standard, custom made or a specially manufactured or imported products are not returnable.
  • Semiconductors, books and software are not refundable

Full Terms and Conditions

By placing an order with Ocean Controls, you agree to be bound by our Terms and Conditions of Trade.

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