Specializing in Industrial Automation & Data Collection Since 1984

Serial Converter


Advantech B+B Smartworx BB-4WSD9OTB Isolated In-line RS-232 to RS-422/485 Serial Converter with v RS-232 Connector & Removable Terminal Block RS-485 Connector


SKU: BB-4WSD9OTB Categories: ,


  • RS-232 to RS-422 or RS-485 (2 or 4 wire) serial conversion
  • 2,000V two-way optical isolation
  • Data rate: 115.2 kbps
  • Quick, inline installation
  • Modbus compatible
  • 10 to 48 VDC external power required (not included, sold separately)
  • Removable terminal blocks for RS-422/485
  • Automatic Send Data Control - no software drivers required

Additional information

Weight 1 lbs