RS-232 to RS485/422 Serial Converter

Convert an RS232 data signal to either RS485 or RS422

Product ID: IC485S

  • Supports up to 4000 ft cable length
  • Handy DCE/DTE mode selection switch
  • Supports point-to-point multidrop configuration
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  • Can be used to monitor RS-485/422 signals
  • Monitor mode allows read only
  • Full or half duplex operation
  • Durable plastic construction protects interior components
  • Draws power from connection or uses 9V power adapter (included)
  • 2-year warranty and FREE LIFETIME technical support
$65.99 CDN
1+ In stock
In stock
CA: 0 | US: 1
In stock
Where To Buy


IC485S [IC485SIS] converts RS-232 serial interfaces to RS-485/422 serial interfaces for trouble-free data transmission. This 2-in-1 converter converts RS232C to either the RS-485 or RS-422 interface, and is DCE/DTE mode selectable at the flip of a switch, making it easy to change line signals!

The RS232 serial interface converter offers several convenient features including mode selection, point-to-point multidrop configuration and RS 485/422 monitor mode, and is constructed of high grade plastic for enhanced durability. The converter supports connections of up to 4000 ft, with data transfer rates of up to 1MB/sec.

Suitable for a broad range of operating environments, this adapter includes an optional 9V power adapter or can draw power on its own, and is backed by’s 2-year warranty and FREE lifetime tech support.

The Advantage

  • Can be used to monitor RS-485/422 signals
  • 2-in-1 converter! Converts RS232C to either RS-485 or RS-422 with cable length up to 4000 ft!
  • Supports point-to-point multidrop configuration and full or half duplex operation
  • 2-year warranty and FREE LIFETIME technical support


Converts RS232C signals to either RS-485 or RS-422 signals

Great for monitoring or controlling RS-422/485 devices like PLCs and other industrial equipment

Ideal in office, warehouse, or other environments where RS-232 and RS-485/422 are used

Technical Specifications

Warranty Information
Warranty 2 Years
Interface Serial
Port Style Cable Adapters
Ports 1
Max Baud Rate 115.2 Kbps
Maximum Cable Length 4000 ft [1219.5 m]
Maximum Data Transfer Rate 1MB/sec
Serial Protocol RS-422/485
Connector Type(s) 1 - DB-25 (25 pin, D-Sub) Female
1 - RJ-11 Female
1 - Terminal Block (4 Wire)
Center Tip Polarity Positive
Output Current 0.3A
Output Voltage 9 DC
Plug Type M
Power Consumption (In Watts) 2.7
Power Source AC Adapter Included
Humidity 0~80% RH
Operating Temperature 0°C to 50°C (32°F to 122°F)
Storage Temperature -20°C to 60°C (4°F to 140°F)
Physical Characteristics
Color Gray
Enclosure Type Plastic
Product Height 0.7 in [19 mm]
Product Length 2.7 in [68 mm]
Product Weight 1.7 oz [47 g]
Product Width 2.1 in [54 mm]
Packaging Information
Shipping (Package) Weight 0.9 lb [0.4 kg]
What's in the Box
Included in Package 1 - INTERFACE CONVERTER


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81+ In stock In stock
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RS-232 to RS485/422 Serial Converter

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