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National Instruments Corporation ix PCI-4451/4452 User Manual
About This Manual
This manual describes the electrical and mechanical aspects of the
PCI-4451 and PCI-4452 devices and contains information concerning their
operation. Unless otherwise noted, the text applies to both devices.
The PCI-4451 and PCI-4452 are high-performance, high-accuracy analog
input/output (I/O) devices for the PCI bus. These devices also support
digital I/O (DIO) functions, counter/timer functions, and external trigger
functions.

Organization of This Manual

The PCI-4451/4452 User Manual is organized as follows:
• Chapter1, Intr oduction, describes the PCI-4451 and PCI-4452
devices, lists what you need to get started, explains how to unpack your
devices, and describes the optional software and optional equipment.
• Chapter2, Installation and Configura tion, explains how to install and
configure your PCI-4451/4452 device.
• Chapter3, Hardware Overview, presents an overview of the hardware
functions on your PCI-4451/4452 device.
• Chapter4, Signal Connections, describes how to make input and
output connections to your PCI-4451/4452 device via the analog I/O
and digital I/O connectors of the device.
• Chapter5, Calibra tion, discusses the calibration procedures for your
PCI-4451/4452 device.
• Chapter6, Theory of Analog Operation, contains a functional
overview and explains the operation of each analog functional unit
making up the PCI-4451/4452.
• AppendixA, Specification s, lists the specifications of the
PCI-4451/4452.
• AppendixB, Pin Connections, describes the pin connections on the
optional 68-pin digital accessories for the PCI-4451/4452 devices.
• AppendixC, Customer Communication, contains forms you can use to
request help from National Instruments or to comment on our products
and manuals.
User.book Page ix Tuesday, April 14, 1998 10:20 AM