This (non-CE) TPCG I/O card is used on a UxS station the same way the EPDG I/O card us used on a Universal Station - to provide the interface for the peripherals controlled by the TPDG card.

The connections present on the TPDG I/O paddle board include the ASPI printer, the monitor, the touch screen signal and power, the mouse or trackball, the operator keyboard, and the SCSI interface for the cartridge drive.