Omega Engineering CIO-DAC16, CIO-DAC08 user manual Hardware Installation, Initial Board Setup

3 HARDWARE INSTALLATION

3.1 Initial Board Setup

The CIO-DAC## has one bank of gain switches for each analog output channel, one base address switch, a simultaneous update jumper for each DAC pair, a “power-up state” selection jumper and one wait state jumper block which must be set before installing the board in your computer. The InstaCal calibration and test program included with the CIO-DAC## will show how these switches are to be set. Run the program before you open your computer.

The CIO-DAC## is setup at the factory as follows:

BASE ADDRESS	300h (768 decimal)
WAIT STATE	Off Position, Right
SIMULTANEOUS UPDATE	Single Channel Update
ANALOG OUTPUT	+5V
POWER UP STATE	Standard (undefined output values at power up)

3.2 Selecting the Base Address

Unless there is already a board in your system that uses address 300h (768 decimal), leave the switches as they are set at the factory.

In the example shown here, the CIO-DAC## is set for base address 300h (768 decimal).

Figure 3-1. Base Address Switches

Certain address are used by the PC, others are free and can be used by the CIO-DAC## and other expansion boards. We recommend you try the factory default BASE = 300h (768 decimal) first.

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