# PCI/LPCI/PXI-3488

IEEE488 GPIB Interface Card Series

User's Manual

Manual Rev. 2.01

Revision Date: April 20, 2006

Part No: 50-17023-2010

![The image displays a black circle containing the standard recycling symbol in white. The symbol consists of three arrows arranged in a triangle, chasing each other in a clockwise direction, with the tail of each arrow featuring three horizontal stripes.](.pci-3488-manual-16/59893aedceedcbabafe69f20bb5c721dbb4ad3a20193b1f33233da469fd21242.jpg)
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Copyright 2006 ADLINK TECHNOLOGY INC.

All Rights Reserved.

The information in this document is subject to change without prior notice in order to improve reliability, design, and function and does not represent a commitment on the part of the manufacturer.

In no event will the manufacturer be liable for direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the product or documentation, even if advised of the possibility of such damages.

This document contains proprietary information protected by copyright. All rights are reserved. No part of this manual may be reproduced by any mechanical, electronic, or other means in any form without prior written permission of the manufacturer.

# Trademarks

Product names mentioned herein are used for identification purposes only and may be trademarks and/or registered trademarks of their respective companies.

# Getting Service from ADLINK

Customer Satisfaction is top priority for ADLINK Technology Inc. Please contact us should you require any service or assistance.

# ADLINK TECHNOLOGY INC.

Web Site: http://www.adlinktech.com

Sales & Service: Service@adlinktech.com

TEL: +886-2-82265877

FAX: +886-2-82265717

Address: 9F, No. 166, Jian Yi Road, Chungho City,

Taipei, 235 Taiwan

Please email or FAX this completed service form for prompt and satisfactory service.

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# Table of Contents

# 1 Introduction ...... 1

Performance 1

Compatibility 1

1.1 Features.... 2

PCI-3488 2

LPCI-3488 2

PXI-3488 3

1.2 Specifications.... 4

GPIB Bus Properties 4

Certificates 4

General Specifications 5

1.3 Software Support 5

# 2 Installation 7

2.1 Contents of Package 7

2.2 Unpacking 8

2.3 Mechanical Drawing 9

2.4 PCI Configuration 12

Plug and Play 12

Configuration 12

Troubleshooting 12

2.5 Hardware Installation 13

Installation Procedures (PCI/LPCI-3488) 13

Installation Procedures (PXI-3488) 14

Cabling 14

2.6 Software Installation 17

Driver installation 17

Using the ADLIINK GPIB Utility 19

# 3 Operation Theory 23

3.1 Connection Configuration 23

Data Lines 25

Handshake Lines 25

System management lines 25

3.2 ADLINK GPIB Interface Cards Block Diagram 26

# List of Tables

Table 1-1: Power Requirements (PCI-3488) 5

Table 1-2: Power Requirements (LPCI-3488) 5

Table 1-3: Power Requirements (PXI-3488) 5

Table 3-1: GPIB Bus 24

# List of Figures

Figure 2-1: PCI-3488 PCB Layout 9

Figure 2-2: LPCI-3488 PCB Layout 10

Figure 2-3: PXI-3488 PCB Layout 10

Figure 2-4: Linear Connection Configuration (PCI/LPCI-3488) . 15

Figure 2-5: Star Connection Configuration (PCI/LPCI-3488)..... 15

Figure 2-6: Linear Connection Configuration (PXI-3488)...... 16

Figure 2-7: Star Connection Configuration (PXI-3488).... 16

Figure 3-1: Standard GPIB Connector.... 23

Figure 3-2: ADLINK GPIB Interface Cards Block Diagram ..... 26

# 1 Introduction

ADLINK's PCI-3488, LPCI-3488 and PXI-3488 GPIB controller interface cards, fully compatible with the IEEE488.2 instrumentation control and communication standard, are capable of controlling up to 14 stand-alone instruments via IEEE488 cables. PCI-3488, LPCI-3488 and PXI-3488 are designed to meet the requirements for high performance and maximum programming portability. The 1KB on-board FIFO and a block transfer mode provide up to 1.5 MB/s GPIB transfer rate. With APIs that are compatible with NI\* software and VISA support, the PCI-3488, LPCI-3488 and PXI-3488 provide the greatest compatibility with your existing applications and instrument drivers.

# Performance

ADLINK's expertise in PCI and PXI interface cards was leveraged when developing these newly designed GPIB interface card. The PCI-3488 supports both 3.3V and 5V PCI buses and can be adapted to most industrial and desktop computers. The LPCI-3488 supports both 3.3V and 5V PCI buses and can be adapted to most industrial and desktop computers. The PXI-3488 is compliant with PXI specification Rev. 2.0 can be adapted to most PXI and CompactPCI system. All ADLINK GPIB interface cards have the on-board 1KB FIFO placed between the GPIB bus and PCI controller to buffer GPIB read/write operations. The FIFO eliminates the gap between the slow GPIB bus (\~1.5MB/s) and the fast PCI bus (132MB/s), and dramatically increases overall system performance.

# Compatibility

ADLINK's GPIB interface solutions are delivered with complete software support, including a driver API set that is fully binary compatible with NI\* GPIB-32.DLL. All programs written based on the GPIB-32.DLL library can be executed with PCI-3488, LPCI-3488 or PXI-3488 without any modification. VISA library is also supported to ensure compatibility with applications utilizing VISA. The ADLINK PCI-3488, LPCI-3488 and PXI-3488 provide the "Plug and Play" compatibility with all your existing applications.

# 1.1 Features

# PCI-3488

The PCI-3488 IEEE 488 GPIB interface card provides the following advanced features:

▶ Fully compatible with the IEEE 488 standard
▶ Supports a 32-bit 3.3V or 5V PCI bus
▶ Up to 1.5MB/s data transfer rates
▶ On-board 1KB FIFO for read/write operations
▶ Provides APIs compatible with NI-488.2\*
▶ Supports industrial-standard VISA Library
▶ Interactive utility for testing and diagnostics
▶ Compact, half-size PCB

# LPCI-3488

The LPCI-3488 IEEE 488 GPIB interface card provides the following advanced features:

▶ Fully compatible with the IEEE 488 standard
▶ Up to 1.5MB/s data transfer rates
▶ On-board 1KB FIFO for read/write operations
▶ Provides APIs compatible with NI-488.2\*
▶ Supports industrial-standard VISA Library
▶ Interactive utility for testing and diagnostics
▶ Fully correspond to low-profile MD1 PCB

# PXI-3488

The PXI-3488 IEEE 488 GPIB interface card provides the following advanced features:

▶ PXI specifications Rev. 2.0 compliant
▶ 3U Eurocard form factor, CompactPCI compliant (PICMG 2.0 R3.0)
▶ Fully compatible with the IEEE 488 standard
▶ Up to 1.5MB/s data transfer rates
▶ On-board 1KB FIFO for read/write operations
▶ Provides APIs compatible with NI-488.2\*
▶ Supports industrial-standard VISA Library
▶ Interactive utility for testing and diagnostics

Note: \*NI and NI-488.2 are the trademarks of National Instruments Corporation.

# 1.2 Specifications

# GPIB Bus Properties

▶ Up to 14 instruments can be connected to one controller
▶ Maximal 1.5 MB/s data transfer rate
▶ Cable length

▷ 2 meters between each instrument (suggested)

▷ 20 meters total cable length

▶ Data transfer mode: 8 bits parallel
▶ Handshake: 3 wire handshake, reception of each data byte is acknowledged

# Certificates

▶ EMC/EMI: CE, FCC Class A

# General Specifications

▶ I/O Connector: IEEE 488 standard 24-pin connector
▶ Operating temperature: 0 to 55°C
▶ Storage temperature: -20 to 80°C at 10 to 90% humidity
▶ Relative humidity: 10 to 90%, non-condensing
▶ Power requirements

PCI-3488

<table><tr><td>+5V</td><td>+3.3V</td></tr><tr><td>400mA (typical)750mA (maximum)</td><td>400mA (typical)750mA (maximum)</td></tr></table>

Table 1-1: Power Requirements (PCI-3488)

▷ LPCI-3488

<table><tr><td>+5V</td><td>+3.3V</td></tr><tr><td>400mA (typical)750mA (maximum)</td><td>400mA (typical)750mA (maximum)</td></tr></table>

Table 1-2: Power Requirements (LPCI-3488)

▷ PXI-3488

<table><tr><td>+5V</td><td>+3.3V</td></tr><tr><td>400mA (typical)750mA (maximum)</td><td>400mA (typical)750mA (maximum)</td></tr></table>

Table 1-3: Power Requirements (PXI-3488)

▶ Dimensions (not including connectors):

PCI-3488: 135mm x 107mm
▷ LPCI-3488: 120mm x 64mm
▷ PXI-3488: 160mm x 100mm

# 1.3 Software Support

ADLINK PCI-3488, LPCI-3488 and PXI-3488 GPIB interface cards provide a device driver package – ADL-GPIB for Windows 98/NT/2000/XP/2003.

The ADGPIB driver package also provides a diagnostic utility to test your GPIB interface cards, as well as programming samples and source codes for Microsoft Visual C++. You can find the ADL-GPIB driver package in the associated All-in-one CD. Please refer to Section 2.6 for detailed software installation instructions.

For other OS supports, please contact ADLINK for more information.

# 2 Installation

This chapter outlines the contents of package, describes unpacking information, and describes how to install the hardware and software.

# 2.1 Contents of Package

The package includes the following items:

▶ PCI-3488 or LPCI-3488, or PXI-3488
▶ ADLINK All-in-one Compact Disc
This User's Manual
▶ Additional low-profile bracket (LPCI-3488 only)

If any of these items are missing or damaged, contact your ADLINK dealer. Save the shipping materials and carton in to ship or store the product in the future.

# 2.2 Unpacking

PCI-3488, LPCI-3488 and PXI-3488 contain electro-static sensitive components that can be easily be damaged by static electricity.

Therefore, these modules should be handled on a grounded anti-static mat. The operator should be wearing an anti-static wristband, grounded at the same point as the anti-static mat.

Inspect the module for obvious damage. Shipping and handling may cause damage to the module. Be sure there are no shipping and handling damage on the module before continuing.

You are now ready to install your PCI/LPCI/PXI-3488.

Note: DO NOT APPLY POWER TO THE CARD IF IT HAS BEEN DAMAGED.

# 2.3 Mechanical Drawing

PCI-3488
![BUS\nTRANSCEIVER\nGPIB\nController\nCPLD\nFIFO\nBUS\nTRANSCEIVER\nPCI\nController](.pci-3488-manual-16/9f0fb4e3183cc1de658c27cb745241e83d4c702a5b39c5195dd5629ccc5ca5ae.jpg)

Figure 2-1: PCI-3488 PCB Layout

LPCI-3488
![FIFO\nCPLD\nBUS Transceiver\nGPIB\nController\nPCI Controller\nBUS Transceiver](.pci-3488-manual-16/67386adf4642bfdf1e8fdfd726ba990bac91c8447e51d9466c5ff1f07ca1429f.jpg)

Figure 2-2: LPCI-3488 PCB Layout

PXI-3488
![BU Receiver\nGPIE Controller\nBU Transceiver\nCPLD\nFIFO\nPCI Controller](.pci-3488-manual-16/ffd8943c1e932e23be66780a980adb20ed01a107fd6157f30055e9b9a5f5de04.jpg)

Figure 2-3: PXI-3488 PCB Layout

The ADLINK PXI-3488 is packaged in a Eurocard form factor compliant with PXI Specifications measuring 160 mm in length and 100 mm in height (not including connectors). IEEE 488 standard

24-pin connector is located at the front panel and the J1 IEC connectors in the rear are used to link the chassis backplane. With its modular, rugged, and high shock resistant mechanical features, the IEEE488 GPIB Interface module functions exceptionally well in any harsh environment application.

# 2.4 PCI Configuration

# Plug and Play

As a plug and play component, the card requests an interrupt number via its PCI controller. The system BIOS responds with an interrupt assignment based on the card information and on known system parameters. These system parameters are determined by the installed drivers and the hardware load seen by the system.

# Configuration

The board configuration is done on a board-by-board basis for all PCI/PXI boards on your chassis. Because configuration is controlled by the system and software, there is no jumper setting required for base-address, DMA, and interrupt IRQ.

The configuration is subject to change with every boot of the system as new boards are added or removed.

# Troubleshooting

If your system doesn't boot or if you experience erratic operation with your PXI/PCI board in place, it's likely caused by an interrupt conflict (perhaps the BIOS Setup is incorrectly configured). In general, the solution, once you determine it is not a simple oversight, is to consult the BIOS documentation that comes with your system.

# 2.5 Hardware Installation

# Installation Procedures (PCI/LPCI-3488)

Please follow the instructions to install the PCI-3488 or LPCI-3488 in your computer.

1. Turn off your computer
2. Turn off all accessories (printer, modem, monitor, etc.) connected to your computer.
3. Open your computer case.
4. Select a 32-bit PCI slot. PCI slot are short than ISA or EISA slots, and are usually white or ivory.
5. Before handling the PCI cards, discharge any static buildup on your body by touching the metal case of the computer. Hold the edge and do not touch the components.
6. Position the board into the PCI slot you selected.
7. Secure the card in place at the rear panel of the system.
8. Put your computer's case back on.

Turn on your computer, and install the software follow below software install instruction.

# Installation Procedures (PXI-3488)

Please follow the instructions to install PXI-3488 into your PXI chassis.

1. Turn off your system.
2. Align the module's edge with the card guide in the PXI chassis.
3. Slide the module into the chassis, until resistance is felt from the PXI connector
4. Push the ejector upwards and fully insert the module into the chassis.
5. Once inserted, a "click" can be heard from the ejector latch.
6. Tighten the screw on the front panel.

Turn on your computer, and install the software follow below software install instruction.

# Cabling

Following connection configuration could guarantees the GPIB throughput achieve optimal value. The configurations include instrument number and cable distance:

The longest distance between two devices is 4 meter. And the average GPIB BUS distance between all devices should be less than 2 meter.

The total GPIB BUS distance should be less than 20 meter.

The total device number must less than 15 (including computer itself), and at least 2-3 devices are in power-on status.

Users can connection devices in a linear configuration, star configuration or combination the two configurations. Below figures shows linear connection and star connection.

Note: At star connection, the total current load will be less if the cable connection on individual instrument is less than three.

![The diagram displays a computer (comprising a monitor and a tower) connected in a daisy-chain configuration to three instruments via intermediate connectors.\n\n**Labeled Blocks:**\n*   **Instrument A**\n*   **Instrument B**\n*   **Instrument C**\n\n**Connections:**\n1.  A line connects the computer tower to the first connector block.\n2.  That connector connects to **Instrument A**.\n3.  **Instrument A** connects to a second connector block.\n4.  That second connector connects to **Instrument B**.\n5.  **Instrument B** connects to a third connector block.\n6.  That third connector connects to **Instrument C**.](.pci-3488-manual-16/8771599797ae27c8f0e0038b18ca4f15b5dae1d6409674e175986692ea59abb2.jpg)

Figure 2-4: Linear Connection Configuration (PCI/LPCI-3488)

![Based on the provided image, here is an accurate and concise description of the flowchart:\n\n**Labeled Blocks:**\n*   **Instrument A**\n*   **Instrument B**\n*   **Instrument C**\n*   **Instrument D**\n\n**Unlabeled Blocks:**\n*   **Computer:** Located at the very top, consisting of a monitor and a tower unit.\n*   **Stack of Circular Components:** Located in the middle, depicted as a vertical stack of four circular shapes (resembling relays or switches).\n\n**Connections:**\n*   A single line connects the **Computer** to the top of the **Stack of Circular Components**.\n*   From the **Stack of Circular Components**, multiple lines branch out to connect to the four instruments:\n    *   Lines extend downward to connect to **Instrument A** and **Instrument B**.\n    *   Lines extend to the right to connect to **Instrument C** and **Instrument D**.](.pci-3488-manual-16/acf4b5a130dfd67fa5cd1fe99a851c0512f221ee4e9a30261b6ab287579545af.jpg)

Figure 2-5: Star Connection Configuration (PCI/LPCI-3488)

![Based on the provided image, here is the description of the flowchart/block diagram:\n\n**Labeled Blocks:**\n*   **Computer chassis** (top block, depicted as a server or PC tower)\n*   **Instrument A**\n*   **Instrument B**\n*   **Instrument C**\n\n**Connections:**\nThe diagram illustrates a daisy-chain connection topology:\n1.  A line connects the **Computer chassis** to the first **connector** (the small stacked-block graphic above Instrument A).\n2.  This first **connector** connects to **Instrument A**.\n3.  The first **connector** also connects to a second **connector** below it.\n4.  This second **connector** connects to **Instrument B**.\n5.  The second **connector** also connects to a third **connector** below it.\n6.  This third **connector** connects to **Instrument C**.](.pci-3488-manual-16/3419444e262d06a3f095acd5be13c0592311a20db1cc4bbcec195850820ad948.jpg)

Figure 2-6: Linear Connection Configuration (PXI-3488)
![**Labeled Blocks:**\n*   Computer chassis (top)\n*   Vertical stack of two circular connectors (center)\n*   Instrument A\n*   Instrument B\n*   Instrument C\n*   Instrument D\n\n**Connections:**\n*   A single line connects the bottom of the computer chassis to the top of the upper circular connector in the central stack.\n*   A line connects the right side of the upper circular connector to Instrument C.\n*   A line connects the left side of the lower circular connector to Instrument A.\n*   Two lines originate from the bottom of the lower circular connector: one connects to Instrument B and the other connects to Instrument D.](.pci-3488-manual-16/822535f585a4c48525c208d2990760d7253b095b666bae8e2c6ea4586e33009c.jpg)

Figure 2-7: Star Connection Configuration (PXI-3488)

# 2.6 Software Installation

ADLINK GPIB interface cards are delivered with the ADL-GPIB driver package which supports Windows 98/NT/2000/XP/2003. The ADL-GPIB is designed to be fully compatible with your current applications. It provides APIs and a binary-compatible gpib-32.dll for users originally using LabVIEW\*, LabWindow/CVI\*, VC++, VB, and Delphi. ADLINK GPIB interface cards also support VISA to be adequate to most available instrument drivers. Please visit ADLINK website to download the latest version of ADL-GPIB.

In this section, we'll illustrate the procedure to install ADLGPIB driver package and show how

\*LabVIEW and LabWindow/CVI are the trademarks of National Instruments Corporation.

# Driver installation

# For Windows 98/NT/2000/XP/2003 users:

1. Insert the ADLINK ALL-In-One CD.
2. Execute x:\Software Package\ADLGPIB\Setup.exe to launch the setup program. (x: denotes your CD-ROM drive). A InstallShield® wizard appears to guide you finish the setup procedure.

![ADLINK GPIB driver 1.05 - InstallShield Wizard\nWelcome to the InstallShield Wizard for\nADLINK GPIB driver 1.05\nThe InstallShield(R) Wizard will allow you to modify, repair, or\nremove ADLINK GPIB driver 1.05. To continue, click Next.](.pci-3488-manual-16/de9011911afbd59e9f41bccb4a401a6e892a81d72aba7b381920b6b11d3c40d5.jpg)

# 3. Reboot your system to complete setup

![ADLINK GPIB driver 1.05 - InstallShield Wizard\nInstallShield Wizard Completed\nThe InstallShield Wizard has successfully installed ADLINK GPIB driver 1.05. Click Finish to exit the wizard.\nADLINK GPIB driver 1.05 Installer Information\nYou must restart your system for the configuration changes made to ADLINK GPIB driver 1.05 to take effect. Click Yes to restart now or No if you plan to restart later.\nYes	No\n( Back	Finish	Cancel](.pci-3488-manual-16/3e5d202b6e1d7bfe3acb68e84ab85d17db46b6d48eaaf84ac08f7f0577862bd2.jpg)

# Using the ADLIINK GPIB Utility

The ADLGPIB driver package also provides a utility program – ADLINK GPIB Utility to let you diagnose and verify your GPIB connections. You can find the GPIB Utility in x:\ADLINK\ADLGPIB\Utility\GPIB Utility.exe. Here are the illustrations of using ADLINK GPIB Utility.

1. Launch the GPIB Utiltu.exe. A window appears to show all your GPIB interfaces and instruments

![GPIB Utility -\nFile Setting Help\nMy Computer\nGPIBO\nStanfordResearchSystems,DS360,33909,1.05 (PA:3)\nHEWLETT-PACKARD,34401A,0,11-5-2 (PA:17)](.pci-3488-manual-16/7bc9c27ba6f92b7286c7381091b7abf8b882f537a95e3cc0576afc248bfb69a5.jpg)

2. Click on a GPIB interface (GPIB0/GPIB1...) and select "Setting" -> "GPIB Preference". A "GPIB Interface & Bus Setting" dialog appears to let you configure your GPIB interface.

![GPIB Utility -\nFile Setting Help\nGPIB Preference\nSave Configuration\nMy Computer\nGPIBO\nStanfordResearchSystems,DS360,33909,1.05 (PA:3)\nHEWLETT-PACKARD,34401A,0,11-5-2 (PA:17)](.pci-3488-manual-16/f2a5766f3d132ad141c17330e43a80ac9ba9d5de548e8f20fd6aeb2fa9d2265b.jpg)

![GPIB Interface & Bus Setting\nGPIB Interface\nGPIBO\nADLINK\nTECHNOLOGY INC.\nGPIB Address\nPrimary\n0\nSecondary\nNone\nGPIB Bus Setting\nBus timeing\n350ns\nI/O timeout\n3s\nSystem controller\nAuto polling\nOK\nCancel](.pci-3488-manual-16/08024003033689b5418a0cd3a5c43942f9fabf272d4ccff43bddb642198cf038.jpg)

3. Double click on a connected GPIB instrument. A "GPIB Interactive control" dialog appears to let you write command strings to your GPIB instrument and read the result.

![GPIB Utility -\nFile Set GPIB Interactive Control\nGPIB Write\n*IDN?\nGPIB Read\nHEWLETT-PACKARD,34401A,0,11-\n5-2\nAsync Return Value\n0x2100 Read\n*IDN?\n*RST\n*TST?\nWrite\nRead](.pci-3488-manual-16/ed037c863948ab400b63d099da0f2067a9959647c815672af47c4ac22ed6de56.jpg)

# 3 Operation Theory

This chapter describes the operation theory of GPIB bus and the basic architecture of ADLINK GPIB interface card.

# 3.1 Connection Configuration

The GPIB bus has 24 lines, which are divided into 16 signal lines and 8 ground return or shield drain lines. The 16 signal lines can be divided into 8-bit parallel data transfer bus and 8 control lines. These 8 control lines contain 5 system management lines and 3 handshake lines.

![| Signal | Pin Number |\n| :--- | :--- |\n| SIGNAL GROUND | 24 |\n| GND (TW PAIR W/ATN) | 23 |\n| GND (TW PAIR W/SRQ) | 22 |\n| GND (TW PAIR W/IFC) | 21 |\n| GND (TW PAIR W/NDAV) | 20 |\n| GND (TW PAIR W/NRFD) | 19 |\n| GND (TW PAIR W/DAV) | 18 |\n| REN | 17 |\n| DIO8 | 16 |\n| DIO7 | 15 |\n| DIO6 | 14 |\n| DIO5 | 13 |\nShield\nATN\nSRQ\nIFC\nNDAC\nNRFD\nDAV\nEOI\nDIO4\nDIO3\nDIO2\nDIO1](.pci-3488-manual-16/8a7119666d01716203779802b334a53b1f3774058b20d523f69f183a4b5aaf4b.jpg)

Figure 3-1: Standard GPIB Connector

<table><tr><td>GPIB BUS</td><td>Type</td><td colspan="2">Function</td><td colspan="2">Pin</td></tr><tr><td rowspan="25">24 lines</td><td rowspan="17">16 signal lines</td><td rowspan="9" colspan="2">8 data lines</td><td>No.</td><td>Description</td></tr><tr><td>1</td><td>DIO1</td></tr><tr><td>2</td><td>DIO2</td></tr><tr><td>3</td><td>DIO3</td></tr><tr><td>4</td><td>DIO4</td></tr><tr><td>13</td><td>DIO5</td></tr><tr><td>14</td><td>DIO6</td></tr><tr><td>15</td><td>DIO7</td></tr><tr><td>16</td><td>DIO8</td></tr><tr><td rowspan="8">8 control lines</td><td rowspan="5">5 system management lines</td><td>5</td><td>EOI</td></tr><tr><td>9</td><td>IFC</td></tr><tr><td>10</td><td>SRQ</td></tr><tr><td>11</td><td>ATN</td></tr><tr><td>17</td><td>REN</td></tr><tr><td rowspan="3">3 handshake lines</td><td>6</td><td>DAV</td></tr><tr><td>7</td><td>NRFD</td></tr><tr><td>8</td><td>NDAC</td></tr><tr><td rowspan="8">8 ground lines</td><td colspan="2">1 shield drain line</td><td>12</td><td>SHIELD</td></tr><tr><td rowspan="7" colspan="2">7 ground return lines</td><td>18</td><td>GND</td></tr><tr><td>19</td><td>GND</td></tr><tr><td>20</td><td>GND</td></tr><tr><td>21</td><td>GND</td></tr><tr><td>22</td><td>GND</td></tr><tr><td>23</td><td>GND</td></tr><tr><td>24</td><td>SIGNAL GROUND</td></tr></table>

Table 3-1: GPIB Bus

# Data Lines

DIO1 to DIO8 carry both data and command messages. All commands and most data use the 7-bit ASCII code, the 8th bit, DIO8, is either unused or for parity check.

# Handshake Lines

These three handshake lines control the transfer of data/messages between devices.

▶ DAV (Data Valid): used to indicate the condition (availability and validity) of information on the DIO signal lines
▶ NRFD (Not Ready For Data): used to indicate the condition of readiness of device(s) to accept data
▶ NDAC (Not Data Accepted): used to indicate the condition of acceptance of data by device

# System management lines

These five system management lines manage the flow of control and data bytes across the interface.

▶ EOI (End or Identify): used (by a talker) to indicate the end of a multiple byte transfer sequence or, in conjunction with ATN (by a controller), to execute a polling sequence
▶ IFC (Interface Clear): used (by a controller) to place the interface system, portions of which are contained in all interconnected devices, in a known quiescent state
▶ SRQ (Service Request): used by a device to indicate the need for attention and to request an interruption of the current sequence of events
▶ ATN (Attention): used (by a controller) to specify how data on the DIO signal lines are to be interpreted and which devices must respond to the data
▶ REN (Remote Enable): used (by a controller) in conjunction with other messages, to enable or disable one or more local controls that have corresponding remote controls.

# 3.2 ADLINK GPIB Interface Cards Block Diagram

ADLINK GPIB interface cards have 1KBytes on-board FIFIO to maximize the data transfer rate. Its state-of-the-art state machine in CPLD coordinates the data flow between PCI controller, FIFO and GPIB bus.

![The diagram displays five labeled blocks arranged in a linear chain with a vertical branch.\n\n**Labeled Blocks:**\n*   Bus Transceiver\n*   GPIB Controller\n*   CPLD\n*   FIFO\n*   PCI Controller\n\n**Connections:**\n*   **Bus Transceiver** is connected via a double-headed arrow to the **GPIB Controller**.\n*   **GPIB Controller** is connected via a double-headed arrow to the **CPLD**.\n*   **CPLD** is connected via a double-headed arrow to the **FIFO**.\n*   **CPLD** is connected via a vertical double-headed arrow to the **PCI Controller**.](.pci-3488-manual-16/41f5d8a25e47c881fabe25457a5bb1db07f2382c0053d49624dd2936cea79196.jpg)

Figure 3-2: ADLINK GPIB Interface Cards Block Diagram

The FIFO can buffer data from master (either from PCI controller or external device) when target is busy. Therefore the efficiency will be significantly improved when transferring large block of data.

# Warranty Policy

Thank you for choosing ADLINK. To understand your rights and enjoy all the after-sales services we offer, please read the following carefully.

1. Before using ADLINK's products please read the user manual and follow the instructions exactly. When sending in damaged products for repair, please attach an RMA application form which can be downloaded from: http://rma.adlinktech.com/policy/.
2. All ADLINK products come with a limited two-year warranty, one year for products bought in China:

The warranty period starts on the day the product is shipped from ADLINK's factory.
▶ Peripherals and third-party products not manufactured by ADLINK will be covered by the original manufacturers' warranty.
For products containing storage devices (hard drives, flash cards, etc.), please back up your data before sending them for repair. ADLINK is not responsible for any loss of data.
▶ Please ensure the use of properly licensed software with our systems. ADLINK does not condone the use of pirated software and will not service systems using such software. ADLINK will not be held legally responsible for products shipped with unlicensed software installed by the user.
For general repairs, please do not include peripheral accessories. If peripherals need to be included, be certain to specify which items you sent on the RMA Request & Confirmation Form. ADLINK is not responsible for items not listed on the RMA Request & Confirmation Form.

3. Our repair service is not covered by ADLINK's guarantee in the following situations:

▶ Damage caused by not following instructions in the User's Manual.
▶ Damage caused by carelessness on the user's part during product transportation.
▶ Damage caused by fire, earthquakes, floods, lightening, pollution, other acts of God, and/or incorrect usage of voltage transformers.
▶ Damage caused by unsuitable storage environments (i.e. high temperatures, high humidity, or volatile chemicals).
▶ Damage caused by leakage of battery fluid during or after change of batteries by customer/user.
▶ Damage from improper repair by unauthorized ADLINK technicians.
▶ Products with altered and/or damaged serial numbers are not entitled to our service.
▶ This warranty is not transferable or extendible.
▶ Other categories not protected under our warranty.

4. Customers are responsible for shipping costs to transport damaged products to our company or sales office.

5. To ensure the speed and quality of product repair, please download an RMA application form from our company website: http://rma.adlinktech.com/policy. Damaged products with attached RMA forms receive priority.

If you have any further questions, please email our FAE staff: service@adlinktech.com.
[🔗 Link to the original document](.pci-3488-manual-16/pci-3488-manual-16.pdf)
