NI GPIB Series User Manual

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Configure and Install Your AT-GPIB/TNT
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9
Configure the AT-GPIB/TNT DMA Channel
Change the jumper settings to match the DMA channel assigned to your board. You must set both
the DMA Acknowledge and DMA Request lines. By default, the AT-GPIB/TNT is configured to use
DMA channel 5.
If you do not know what resources were assigned to your AT-GPIB/TNT, click here to Determine
Assigned Resources.
Table 3. AT-GPIB/TNT DMA Channel Settings
DMA Channel DMA Jumpers
5, 6, or 7
(DMA 7 is shown)
No DMA Channel
DRQ5 DRQ7
DACK7
DRQ6
DACK6 DACK5
IRQ
15 14 12
11
10
Used to
Select
IRQ
=
DRQ5 DRQ7
DACK7
DRQ6
DACK6 DACK5
IRQ
15 14 12
11
10
Used to
Select
IRQ
=
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NI GPIB Series Specifications

General

Operating Systems Supported	Windows, Linux, macOS
Driver Software	NI-488.2
Bus Interface	IEEE 488
Data Transfer Rate	Up to 8 MB/s
Compatibility	IEEE 488.1, IEEE 488.2
Connector Type	24-pin IEEE 488 connector
Maximum Cable Length	20 m total system length
Number of Devices Supported	Up to 14 devices per bus