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IOB-B1 & B2
I/O Bus Unitary Motors

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The IOB-B1 and IOB-B2 series of products are I/O Bus devices that provide expansion to the Walker line of controllers (WS1616s, MiniSACs and MicroSACs).   The modules come in many factory-assembled configurations and include a Belimo Motor with various options of inputs and outputs.

  • provides an Belimo Motor expansion to any SAC panel



  • Belimo LM24-M motor and housing
  • output drive circuitry for Belimo LM24-M motor
  • Universal Inputs
  • Outputs (Digital or Analog options)
  • Feedback positioning potentiometer (optional)
  • PIC controller for I/O Bus communications
  • 8 bit A/D
  • PWM output 10 bit resolution


  • powered from I/O Bus or 24 VAC


  • 9600 bps
  • uses Walker ASCII Protocol


  • 18 gauge twisted Pair shielded (same cable used for SmartLAN)

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Left click to view with Acrobat Reader Right click & "Save Target As..." to download PDF file: IOB-B1&B2.pdf

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