*Support the +3.3/+5 V PCI bus for PIO-D24U/D56U

*Supports PCI Express x 1 for PEX-D24/D56

*Up to 56/24(PIO-D56/PIO-D24) channels of digital I/O

*Bi-direction programmable I/O ports under software control

*All I/O lines buffered on the board

*8-bit groups independently selectable for I/O on 24-bit port

*Double side SMD, short card.

*Connects directly to DB-24PR, DB-24PD, DB-24RD, DB-24PRD, DB-16P8R, DB -24POR, DB-24SSR, DB-24C or any OPTO-22 Compatible daughter boards

*4 interrupt sources: PC0,PC1,PC2,PC3

*One DB37 connector, two 20-pin headers(only for PIO-D56(U) and PEX-D56)

*No base address or IRQ switches to set

*Output status readback

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