Ocean Optics S2000 - Manual (Page 19)

ADC1000 ISA-bus A/D Converter (and PC2000)
The ADC1000 ISA- BUS A/D C ONVERTER is a 12-bit, 8-channel, single-ended A/D card that connects our
spectrometers to desktop PCs. The PC2000 PC P LUG - IN S PECTROMETER has our 2048-element linear CCD-array
fiber optic spectrometer mounted onto an ADC1000. This sturdy combination fits easily into a slot in the PC. The
following are directions for installing your ADC1000 and PC2000. Because A/D converter installation goes hand-in-
hand with software installation, you will find directions for installing OOIBase32 Spectrometer Operating Software
included in this section as well.
Each device in or connected to your computer is assigned specific settings; it’s similar to giving each device its own
name so that your computer will know what to call and how to recognize the device. In order for your ADC1000 or
PC2000 to work as a device in your computer, it has to be assigned a Base Address setting and an IRQ setting. The
default settings for each are:
Base Address (I/O Range): 768 decimal (300 hexadecimal)
IRQ (Interrupt Request): 07
These default values are set on the A/D converter. There are dip switches on the A/D board and their positions
determine the values. These default values are set in the operating software as well. Most of the time, these default
settings will work with your computer. However, if you have many devices installed in your computer, you may
have a conflict; other devices may be using these settings. If there is a conflict with another device in your
computer, you must change the positions of the switches on the A/D board and change the values in the software.
For the ADC1000 and PC2000, there is only one bank of switches on the A/D board: the Base Address may be
changed via the first 6 switches and the IRQ may be changed via the last 3 switches. To first check your computer
to see which settings are available, follow the instructions for your Windows operating system.
Windows 95 and Windows 98 Users:
Find Available Base Address and IRQ Settings
1. Go to Start | Settings | Control Panel and double-click on the System icon.
2. Choose the Device Manager tab and double-click on “Computer” at the top of the list.
3. Under View Resources, find available settings -- numbers unassigned to hardware. Note these available
settings for both the Interrupt request (IRQ) and the Input/output (Base Address). When you first run
OOIBase32, you must enter these values in the “Configure Hardware” dialog box. (Remember that
Input/output settings are expressed in hexadecimal.)
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For most computers, the default settings work well. In the picture above left, it appears that the Printer occupies
IRQ 07, but for most computers, our A/D converters can share the 07 setting with a printer and conflicts will
not arise. All computers have multiple Base Address (Input/output) settings from which to choose.
A/D Converters: ADC1000 (and PC2000)
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