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322545A-01

©

 Copyright 1999 National Instruments Corp. All rights reserved.

September 1999

INSTALLATION GUIDE

BNC-2142 D

ESKTOP

 

AND

 DIN R

AIL

-M

OUNTABLE

 

BNC A

DAPTER

This installation guide describes how to install and configure your 
BNC-2142 accessory.

Introduction

The BNC-2142 is a desktop and DIN rail-mountable BNC adapter you 
can connect directly to dynamic signal acquisition (DSA) devices. It 
includes six BNC connectors for signal connections, and a 68-pin 
I/O connector for connection to the PCI-445x and NI 455x DSA devices. 
The BNC-2142 is ideal for simplifying connections between your 
measurement apparatus and your DSA device in laboratory, test, and 
production environments.

What You Need to Get Started

To set up and use your BNC-2142 accessory, you will need the following:

BNC-2142 BNC Adapter

BNC-2142 Desktop and DIN Rail-Mountable BNC Adapter 
Installation Guide

PCI-445or NI 455x device

SHC68-C68-A1 analog cable

Detailed specifications for the BNC-2142 are in the Specifications section 
later in this guide.

Summary of Contents for BNC-2142

Page 1: ... adapter you can connect directly to dynamic signal acquisition DSA devices It includes six BNC connectors for signal connections and a 68 pin I O connector for connection to the PCI 445x and NI 455x DSA devices The BNC 2142 is ideal for simplifying connections between your measurement apparatus and your DSA device in laboratory test and production environments What You Need to Get Started To set ...

Page 2: ...round Additionally if the source or load ground is at a different electrical potential than the ground of the BNC 2142 and DSA device ground loops may occur that can result in incorrect readings and may damage the BNC 2142 the DSA device or the host computer National Instruments is not liable for damage resulting from these connections To avoid encountering these conditions electrically isolate or...

Page 3: ... BNC 2142 connects to the analog output channels on the PCI 445x and NI 455x DSA devices via the DAC0OUT and DAC1OUT BNC connectors Cabling The BNC 2142 has one 68 position 0 8 mm VHDCI connector on the rear panel to connect to your DSA device Caution Do not connect the BNC 2142 to any device other than the National Instruments PCI 445x and NI 455x DSA devices Doing so can damage the BNC 2142 the ...

Page 4: ...guide for more information When you have finished using your BNC 2142 turn off any powered external signals connected to your BNC 2142 before you turn off your computer Figure 1 Connecting the BNC 2142 to Your DSA Device Warning The BNC 2142 is not designed for input voltages greater than 42 4 V even if a user installed voltage divider reduces the voltage to within the input range of the DSA devic...

Page 5: ...ge Each input should remain within 42 4 V 30 Vrms of ground Field connection 6 BNC connectors 4 single ended analog input connectors and 2 single ended analog output connectors Physical Dimensions 14 4 by 11 2 by 5 5 cm 5 7 by 4 4 by 2 2 in I O connector One 68 pin 0 8 mm VHDCI female connector BNC connectors 6 Environment Operating temperature 0 to 70 C Storage temperature 55 to 150 C Relative hu...

Page 6: ......

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