The 51402089-100 PWA is the second-generation Enhanced Peripheral Display Generator card for Universal Station nodes. It provides the signals for the video display, SCSI control for the Bernoulli or Zip drive, cursor control for the touch screen, trackball, or mouse, communication for the keyboard, and the printer, if present.

The first-generation Enhanced Peripheral Display Generator is 51401286-100.

The I/O paddle board used with the EPDG2 can be one of the EPDGP I/O cards for non-CE applications, such as the 51404584-100. For CE applications, use the EPDGC-1 (51402447-100) or the EPDGC-2 (51402447-200).