Specializing in Industrial Automation & Data Collection Since 1984

Serial Converter


Advantech B+B Smartworx BB-4WSD9TB Port Powered RS-232/485 Converter with DB9 Female RS-232 Connector, Terminal Block RS-485 Connector & RS-422/485 2/4-Wire Output


SKU: BB-4WSD9TB Categories: ,


  • Change RS-232 TD and RD to RS-485 signals
  • Extend RS-232 data signals up to 1.2 km (4,000 ft.)
  • Data rate: 115.2 kbps
  • Quick, inline installation
  • DIP switch selectable RS-422 or RS-485
  • RS-232 port-power or external 12 VDC source (power supply not included, sold separately)

Additional information

Weight 1 lbs