IEI Integration iQ7-US15W - Manual (Page 44)

IQ7 Design Guide
Page 32
Figure 4-4: CompactFlash® Slot Location
4.2.4 Digital I/O Connector
CN Label: DIO1
CN Type: 10-pin header
CN Location: See Figure 4-5
CN Pinouts: See Table 4-5
The digital I/O connector provides programmable input and output for external devices.
The digital I/O provides 4-bit output and 4-bit input.