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GPIB Hardware Guide

CONFIGURATION AND INSTALLATION

AT-GPIB-TNT

GPIB-PCII/IIA

PC/104-GPIB

NEC-GPIB/TNT

INSTALLATION

AT-GPIB/TNT (PnP) and AT-GPIB/TNT+

GPIB-1394

GPIB-USB-A

NEC-GPIB/TNT (PnP)

PCI-GPIB and PCI-GPIB+

PCMCIA-GPIB and PCMCIA-GPIB+

PMC-GPIB

PXI-GPIB

SPECIFICATIONS

TECHNICAL SUPPORT

IMPORTANT INFORMATION

COMPLIANCE

322296B-01, March 2000

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Configure and Install Your AT-GPIB/TNT Next

Step

Configure and Install Your AT-GPIB/TNT

1. Configure the AT-GPIB/TNT Base I/O Address

2. Configure the AT-GPIB/TNT Interrupt Line (IRQ).

3. Configure the AT-GPIB/TNT DMA Channel.

After you finish these steps, you are ready to Install the AT-GPIB/TNT.

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Back

Figure 1. AT-GPIB/TNT Parts Locator Diagram

1 Product Name,

Revision Letter, and

Assembly Letter

2 Base I/O Address

3 Serial Number 4 DMA Channel

5 Interrupt Line (IRQ) 6 Shield Ground



4 65

2 3

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Configure and Install Your AT-GPIB/TNT Next

Step

Configure the AT-GPIB/TNT Base I/O Address

Click on the base I/O address assigned to your AT-GPIB/TNT from the list below, and change the

switch settings to match the base I/O address assigned to your board.

If you do not know what resources were assigned to your AT-GPIB/TNT, click here to Determine

Assigned Resources.

100 200 300

120 220 320

140 240 340

160 260 360

180 280 380

1A0 2A0 3A0

1C0 2C0*3C0

1E0 2E0 3E0

* default setting

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Step

Table 1. Possible Base I/O Address Switch Settings for AT-GPIB/TNT

Base I/O

Address (hex) Switch Setting

Base I/O

Address (hex) Switch Setting

100 120

140 160

180 1A0

1C0 1E0

OFF

View Parts

Locator

Diagram

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Configure and Install Your AT-GPIB/TNT Next

Step

200 220

240 260

280 2A0

2C0 2E0

Table 1. Possible Base I/O Address Switch Settings for AT-GPIB/TNT (Continued)

Base I/O

Address (hex) Switch Setting

Base I/O

Address (hex) Switch Setting

OFF

View Parts

Locator

Diagram

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Configure and Install Your AT-GPIB/TNT Next

Step

300 320

340 360

380 3A0

3C0 3E0

Table 1. Possible Base I/O Address Switch Settings for AT-GPIB/TNT (Continued)

Base I/O

Address (hex) Switch Setting

Base I/O

Address (hex) Switch Setting

OFF

View Parts

Locator

Diagram

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Configure and Install Your AT-GPIB/TNT Next

Step

Configure the AT-GPIB/TNT Interrupt Line (IRQ)

Change the jumper settings to match the interrupt line (IRQ) assigned to your board. By default,

the AT-GPIB/TNT is configured to use interrupt line (IRQ) 11.

If you do not know what resources were assigned to your AT-GPIB/TNT, click here to Determine

Assigned Resources.

Table 2. AT-GPIB/TNT Interrupt Line Configurations

Interrupt Line (IRQ) Interrupt Jumper Setting

10, 11, 12, or 15

(IRQ 11 is shown)

3, 4, 5, 7, or 9

(IRQ 5 is shown)

No Interrupt Line (IRQ)

DRQ5

DRQ7

DACK7

DRQ6

DACK6

DACK5

IRQ

Used to

Select

DMA

345679

IRQ3

IRQ9

345679

IRQ3

IRQ9

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Locator

Diagram

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Configure and Install Your AT-GPIB/TNT Next

Step

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

Used to

Select

IRQ

DRQ5

DRQ7

DACK7

DRQ6

DACK6

DACK5

IRQ

Used to

Select

IRQ

View Parts

Locator

Diagram

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Configure and Install Your AT-GPIB/TNT Next

Step

Set the AT-GPIB/TNT Shield Ground Configuration

The AT-GPIB/TNT is set at the factory with the jumper in place to connect the logic ground of the

AT-GPIB/TNT to its shield ground. This configuration minimizes EMI emissions.

Caution The AT-GPIB/TNT was tested for compliance with FCC standards with the shield ground connected

to logic ground. Removing the jumper might cause EMI emissions to exceed any or all of the

applicable standards.

Most users do not need to change the shield ground configuration. If you feel you must disconnect

logic ground from shield ground, follow these steps:

1. Locate the shield ground jumper W3 on the AT-GPIB/TNT. (View the AT-GPIB/TNT Parts

Locator Diagram.)

2. Remove the jumper and place it across only one of the jumper pins, as shown in the following

figure.

Figure 2. AT-GPIB/TNT Ground Configuration Jumper Settings

a. Logic Ground Connected to Shield Ground (Default)

b. Logic Ground Disconnected from Shield Ground

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