DIO1 BLOCK DIAGRAM
The DIO1-PC/104 is a digital I/O board with 8 or 16 opto- isolated digital input channels and 8 or 16 relay- based output channels. The opto- isolated digital input channels are wired to the 34- pin connector J3. The relay output channels of the DIO1 are wired to the 34- pin connector J4 and the 16- pin connector J5.

The DIO1 offers two configuration jumpers: 1.) JP1 - I/O BASE ADDRESS SELECT and 2.) JP2 - IRQ SELECT. The DIO1 digital I/O channels and registers are I/O port mapped for easy software service with most of the operating systems (i. e. Microsoft Windows 95, Windows 98, Windows NT, and Windows CE). JP1 defines the I/O base address for the DIO1 digital I/O channels and registers in the PC/104 host system I/O address space. The I/O base address can be 200h, 220h, 280h, 2A0h, 300h, 320h, 380h, or 3A0h. With jumper JP2 the input channel interrupt request can be routed to the PC/104 IRQ signals. On the 16- bit version the interrupt request is jumper selectable on the PC/104 bus interrupts IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7, IRQ10, IRQ11, IRQ12, IRQ14, or IRQ15. The 8- bit version of the DIO1 offers only the PC/104 bus interrupts IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, or IRQ7.

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SSV SOFTWARE SYSTEMS PC/104 Products. DIO1. File: P141.HTM, Last Update: 05-Aug-1998
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