Adlink USB-3488A User Manual download pdf (Page 9)

Introduction 1

1 Introduction

1.1 Overview

ADLINK’s LPCI-/USB-3488A and PXI-3488 GPIB controller inter-

face cards are fully compatible with the IEEE488.2 instrumentation

control and communication standard and are capable of control-

ling up to 14 stand-alone instruments via IEEE488 cables. The

LPCI-3488A and USB-3488A are designed to meet the require-

ments for high performance and maximum programming portabil-

ity. They were developed using ADLINK’s intellectual property in

FPGAs which incorporates the GPIB controller, provides reliable

GPIB bus control capability, and supports a transfer rate up to 1.5

MB/s. With APIs that are compatible with National Instruments

software and VISA support, the LPCI-/USB-3488A and PXI-3488

offer the best compatibility with your existing applications and

instrument drivers.

1.1.1 Performance

ADLINK’s expertise in PCI and PXI interface cards was leveraged

when developing these newly designed GPIB interface card. The

LPCI-3488A, which is the low-profile PCI form factor, supports

both 3.3 V and 5 V PCI buses and can be adapted to most indus-

trial and desktop computers. The PXI-3488 is compliant with PXI

specification Rev. 2.0 and can be used with most PXI and Com-

pactPCI system. A 2 KB FIFO is placed between the GPIB bus

and PCI controller to buffer GPIB read/write operations. This FIFO

eliminates the gap between the slow GPIB bus (~1.5 MB/s) and

the fast PCI bus (132 MB/s), and dramatically increases overall

system performance. ADLINK USB-3488A equipped with 32 KB

FIFO to the read/write operations, the maximum transfer rates of

more than 1.2 MB/s.

1. National Instruments is a registered trademark of National Instruments Cor-

poration

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Adlink USB-3488A User Manual Page 9