Chapter 2
Hardware Configuration and Installation
© National Instruments Corp.
2-7
GPIB-PCIIB/MS-DOS
Two jumpers must be positioned to select a DMA channel. The DMA
Acknowledge and DMA Request lines selected must have the same numeric
suffix for proper operation. Figure 2-4 displays the jumper position
options.
R1
A3
• •
• •
A1
R1
A2
R2
A3
R3
• •
• •
b. DMA Channel 2 Selected
A1
R1
A2
R2
A3
R3
• •
• •
• •
• •
• •
• •
• •
• •
A1
A2
R2
R3
a. DMA Channel 1 Selected
(Default Setting)
A2
R2
A3
R3
• •
• •
• •
• •
d. No DMA Channel Selected
• •
• •
A1
R2
Figure 2-4. DMA Channel Jumper Setting Options