DDC Operator’s Door Controller

Digital Door Controller (DDC)
Digital Door Controller (DDC)
Digital Door Controller (DDC)
Digital Door Controller (DDC)

Assists multi-tasking bus operators stay on schedule with convenient, fingertip functional commands

Innovative door controller combines bus component switches in one easy-to-reach operator side location. Utilizes rotary optical encoder switch technology to send door open/close signals. Unique design eliminates or minimizes wiring issues with simple plug-and-play installation.

  • Door-controller switching for two, three and five positions
  • Five customizable LED illuminated dome push buttons
  • J1939 vehicle communication
  • Solid-state technology
  • Ergonomic door position selector knob
  • Five function push buttons  
  • Easy-to-read, backlighted switch icons  
  • Extremely rugged, IP67 rating  
  • Tactile (raised and recessed) push buttons for non-visual identification  
  • Backlighted door position plate available
  • Factory-assigned message and address numbers (SPN/PGN) optional  
  • Five momentary buttons  
  • Icons are laser etched and backlighted – green LED  
  • Each pushbutton has indicator window – amber LED


  • Customizable door position plate. Available as 2, 3, or 5 position.
  • Backlighted door position plate assembly – green LED


  • Outputs (4-Pin): (2) J1939, (1) power, (1) ground  
  • Vehicle Interface: 4-Pin Deutsch connector  
  • Vehicle Communication: J1939 Auto-detect 250K/500K  
  • Operating Voltage: 12/24 VDC Nominal  
  • Operating Temperature: -40° to 185° F (-40° to 85°C)
  • Ingress Protection: IP67  
  • Five Dome Switch Pushbuttons: - Standard functions: Bus Kneel, Bus Raise, Ramp Power, Ramp Deploy, Ramp Stow

- Alternative commands/icons available

Contact Us

Wabtec Bus Solutions

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(866) 375-4126
WabtecBusSolutions [at] wabtec [dot] com (subject: Wabtec%20Bus%20Solutions%20Website%20Inquiry) (WabtecBusSolutions[at]wabtec[dot]com)



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8D Corrective Action Form