National Instruments SCXI-1160 User manual

© Copyright 1992, 1999 National Instruments Corporation.
All Rights Reserved.
SCXI-1160
User Manual
16-Channel Single-Pole Double-Throw (SPDT) Relay Module
March 1999 Edition
Part Number 320513B-01

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Warranty
The SCXI-1160 is warranted against defects in materials and workmanship for a period of one year from the
date of shipment, as evidenced by receipts or other documentation. National Instruments will, at its option,
repair or replace equipment that proves to be defective during the warranty period. This warranty includes parts
and labor.
The media on which you receive National Instruments software are warranted not to fail to execute
programming instructions, due to defects in materials and workmanship, for a period of 90 days from date of
shipment, as evidenced by receipts or other documentation. National Instruments will, at its option, repair or
replace software media that do not execute programming instructions if National Instruments receives notice of
such defects during the warranty period. National Instruments does not warrant that the operation of the
software shall be uninterrupted or error free.
A Return Material Authorization (RMA) number must be obtained from the factory and clearly marked on the
outside of the package before any equipment will be accepted for warranty work. National Instruments will pay
the shipping costs of returning to the owner parts which are covered by warranty.
National Instruments believes that the information in this document is accurate. The document has been
carefully reviewed for technical accuracy. In the event that technical or typographical errors exist, National
Instruments reserves the right to make changes to subsequent editions of this document without prior notice to
holders of this edition. The reader should consult National Instruments if errors are suspected. In no event shall
National Instruments be liable for any damages arising out of or related to this document or the information
contained in it.
EXCEPT AS SPECIFIED HEREIN, NATIONAL INSTRUMENTS MAKES NO WARRANTIES, EXPRESS OR IMPLIED,
AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. CUSTOMERÍS RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART
OF NATIONAL INSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER.
NATIONAL INSTRUMENTS WILL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA, PROFITS,
USE OF PRODUCTS, OR INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF ADVISED OF THE POSSIBILITY
THEREOF. This limitation of the liability of National Instruments will apply regardless of the form of action,
whether in contract or tort, including negligence. Any action against National Instruments must be brought
within one year after the cause of action accrues. National Instruments shall not be liable for any delay in
performance due to causes beyond its reasonable control. The warranty provided herein does not cover
damages, defects, malfunctions, or service failures caused by ownerís failure to follow the National
Instruments installation, operation, or maintenance instructions; ownerís modification of the product; ownerís
abuse, misuse, or negligent acts; and power failure or surges, fire, flood, accident, actions of third parties, or
other events outside reasonable control.
Copyright
Under the copyright laws, this publication may not be reproduced or transmitted in any form, electronic or
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whole or in part, without the prior written consent of National Instruments Corporation.
Trademarks
LabVIEW™, NI-DAQ™, and RTSI™ is a trademark of National Instruments Corporation.
Product and company names mentioned herein are trademarks or trade names of their respective companies.

WARNING REGARDING MEDICAL AND CLINICAL USE OF
NATIONAL INSTRUMENTS PRODUCTS
National Instruments products are not designed with components and testing for a level of reliability suitable
for use in or in connection with surgical implants or as critical components in any life support systems whose
failure to perform can reasonably be expected to cause significant injury to a human. Applications of National
Instruments products involving medical or clinical treatment can create a potential for death or bodily injury
caused by product failure, or by errors on the part of the user or application designer. Because each end-user
system is customized and differs from National Instruments testing platforms and because a user or application
designer may use National Instruments products in combination with other products in a manner not evaluated
or contemplated by National Instruments, the user or application designer is ultimately responsible for
verifying and validating the suitability of National Instruments products whenever National Instruments
products are incorporated in a system or application, including, without limitation, the appropriate design,
process and safety level of such system or application.

© National Instruments Corporation v SCXI-1160 User Manual
Contents
About This Manual ..........................................................................................................xi
Organization of This Manual .......................................................................................xi
Conventions Used in This Manual............................................................................... xii
Related Documentation................................................................................................ xiii
Customer Communication ........................................................................................... xiii
Chapter 1
Introduction ........................................................................................................................1-1
What Your Kit Should Contain.................................................................................... 1-2
Optional Software ........................................................................................................1-2
Optional Equipment .....................................................................................................1-3
Custom Cables ................................................................................................. 1-3
Unpacking .................................................................................................................... 1-4
Chapter 2
Configuration and Installation.....................................................................................2-1
Module Configuration.................................................................................................. 2-1
Jumper Configuration ...................................................................................... 2-5
Jumper W1 ........................................................................................... 2-5
Jumper W5 ........................................................................................... 2-5
Using Jumpers W1 and W5 ................................................................. 2-5
Using Jumpers W2, W3, and W4.........................................................2-7
Hardware Installation...................................................................................................2-7
Signal Connections ......................................................................................................2-8
Front Connector ............................................................................................... 2-9
Front Connector Signal Descriptions...............................................................2-10
Contact Protection for Inductive Load Connections........................................ 2-10
Terminal Block ................................................................................................ 2-12
SCXI-1324 Terminal Block .....................................................2-12
Signal Connection. ......................................................2-13
SCXI-1324 Installation. ...............................................2-15
Rear Signal Connector .....................................................................................2-15
Rear Signal Connector Signal Descriptions.....................................................2-17
Digital I/O Signal Connections ............................................................2-17
Timing Requirements and Communication Protocol....................................... 2-19
Communication Signals ....................................................................... 2-19
Chapter 3
Theory of Operation ........................................................................................................3-1
Functional Overview....................................................................................................3-1
SCXIbus Connector ......................................................................................... 3-2
SCXIbus Connector Signal Descriptions.........................................................3-4
Digital Interface ........................................................................................................... 3-5
Digital Control Circuitry..............................................................................................3-6
Relay Channels ............................................................................................................3-7

SCXI-1160 User Manual vi © National Instruments Corporation
Chapter 4
Register Descriptions ....................................................................................................... 4-1
Register Description..................................................................................................... 4-1
Register Description Format ............................................................................ 4-1
SCXI-1160 Registers ....................................................................................... 4-1
Address Handler ............................................................................................... 4-1
Module ID Register.............................................................................. 4-3
Data Register........................................................................................ 4-4
Status Register......................................................................................4-5
Parking Register...............................................................................................4-6
Slot 0 Register Descriptions............................................................................. 4-7
Slot-Select Register.............................................................................. 4-8
Chapter 5
Programming ......................................................................................................................5-1
Programming Considerations....................................................................................... 5-1
Notation............................................................................................................5-1
Register Writes ................................................................................................. 5-1
Register Selection and Write Procedure ..............................................5-2
Initialization .........................................................................................5-3
Examples......................................................................................................................5-3
Example 1 ........................................................................................................ 5-4
Example 2 ........................................................................................................ 5-4
Example 3 ........................................................................................................ 5-5
Appendix A
Specifications .......................................................................................................................A-1
Contact Ratings ........................................................................................................... A-1
Physical ........................................................................................................................A-2
Operating Environment................................................................................................ A-2
Storage Environment....................................................................................................A-2
Appendix B
Rear Signal Connector ....................................................................................................B-1
Rear Signal Connector Signal Descriptions.....................................................B-2
Appendix C
SCXIbus Connector .........................................................................................................C-1
SCXIbus Connector Signal Descriptions.........................................................C-3
Appendix D
SCXI-1120 Front Connector .........................................................................................D-1
Front Connector Signal Descriptions...............................................................D-2
Appendix E
SCXI-1160 Cabling...........................................................................................................E-1
SCXI-1340 Cable Assembly........................................................................................E-1
SCXI-1340 Installation ....................................................................................E-2
SCXI-1341 Lab-NB, Lab-PC, or Lab-PC+ and SCXI-1344 Lab-LC
Cable Assembly ........................................................................................................... E-3

© National Instruments Corporation vii SCXI-1160 User Manual
SCXI-1341 and SCXI-1344 Installation .......................................................... E-4
SCXI-1342 PC-LPM-16 Adapter Board...................................................................... E-5
SCXI-1342 Installation ....................................................................................E-6
DIO-96 Board Connection AT-MIO-16D, and AT-MIO-64F-5 Board Connection...................E-6
SCXI-1351 and NB5 Cable Installation..........................................................E-7
SCXI-1348 DIO-32F Adapter Board...........................................................................E-8
SCXI-1348 Installation ................................................................................................E-10
SCXI-1180 Feedthrough Panel ....................................................................................E-10
SCXI-1180 Installation ....................................................................................E-10
SCXI-1302 50-Pin Terminal Block ............................................................................. E-12
SCXI-1302 Wiring Procedure.......................................................................... E-12
SCXI-1302 Installation ....................................................................................E-13
SCXI-1351 One-Slot Cable Extender .......................................................................... E-13
SCXI-1351 Installation ....................................................................................E-14
Multiple-Chassis Connections for the SCXI-1160 ...................................................... E-14
SCXI-1350 Multichassis Adapter ................................................................................ E-14
SCXI-1350 Installation ....................................................................................E-14
SCXI-1343 Rear Screw Terminal Adapter ..................................................................E-15
SCXI-1343 Installation ....................................................................................E-16
Appendix F
Aromat Relay Technical Data ......................................................................................F-1
Appendix G
Customer Communication.............................................................................................G-1
Glossary .......................................................................................................................Glossary-1
Index ..................................................................................................................................Index-1

SCXI-1160 User Manual viii © National Instruments Corporation
Figures
Figure 1-1. SCXI-1160 Relay Module ............................................................................... 1-1
Figure 2-1. SCXI-1160 General Parts Locator Diagram ....................................................2-2
Figure 2-2. Detailed Parts Locator Diagram....................................................................... 2-3
Figure 2-3. SCXI-1160 Front Connector Pin Assignment .................................................2-9
Figure 2-4. Contact Protection Using a Flyback Diode for DC Inductive Loads...............2-11
Figure 2-5. Arc Suppressor Pad Locations ......................................................................... 2-12
Figure 2-6. SCXI-1324 Parts Locator Diagram.................................................................. 2-14
Figure 2-7. SCXI-1160 Rear Signal Connector Pin Assignment .......................................2-16
Figure 2-8. Slot-Select Timing Diagram ............................................................................ 2-20
Figure 2-9. Serial Data Timing Diagram ............................................................................ 2-21
Figure 2-10. Address Handler Timing Diagram...................................................................2-22
Figure 2-11. Data Register Write Timing Diagram..............................................................2-23
Figure 2-12. SCXI-1160 Module ID Register Timing Diagram .......................................... 2-24
Figure 2-13. SCXI-1160 Status Register Timing Diagram ..................................................2-25
Figure 3-1. SCXI-1160 Block Diagram.............................................................................. 3-1
Figure 3-2. SCXIbus Connector Pin Assignment...............................................................3-3
Figure 3-3. Digital Interface Circuitry Block Diagram ...................................................... 3-5
Figure 3-4. SCXI-1160 Digital Control..............................................................................3-6
Figure B-1. SCXI-1160 Rear Signal Connector Pin Assignment .......................................B-1
Figure C-1. SCXIbus Connector Pin Assignment...............................................................C-2
Figure D-1. SCXI-1160 Front Connector Pin Assignment .................................................D-1
Figure E-1. SCXI-1340 Installation .................................................................................... E-3
Figure E-2. SCXI-1351 and NB5 Cable Installation........................................................... E-8
Figure E-3. SCXI-1180 Rear Connections..........................................................................E-11
Figure E-4. SCXI-1180 Front Panel Installation.................................................................E-12
Figure E-5. SCXI-1350 Cover Removal .............................................................................E-13
Tables
Table 2-1. Digital Signal Connections and Jumper Settings............................................. 2-6
Table 2-2. COM to NO Arc Suppressor Placement ..........................................................2-11
Table 2-3. COM to NC Arc Suppressor Placement .......................................................... 2-12
Table 2-4. SCXIbus to SCXI-1160 Rear Signal Connector to Data Acquisition Board
Pin Equivalences .............................................................................................. 2-19
Table 3-1. SCXIbus Equivalents for the Rear Signal Connector ...................................... 3-5
Table 4-1. Register Addresses...........................................................................................4-2
Table 4-2. Truth Table for Resetting and Setting Relays..................................................4-4
Table 5-1. SCXIbus to SCXI-1160 Rear Signal Connector to Data Acquisition
Board Pin Equivalences ...................................................................................5-2

© National Instruments Corporation ix SCXI-1160 User Manual
Table E-1. SCXI-1160 and Board Pinout Equivalences.................................................... E-2
Table E-2. SCXI-1341 and 1344 Pin Translations ...........................................................E-4
Table E-3. SCXI-1342 Pin Translations ............................................................................E-5
Table E-4. SCXI-1160 and DIO-96 Board Pinout Equivalences ......................................E-7
Table E-5. SCXI-1348 Pin Translations ............................................................................E-9
Table E-6. SCXI-1343 Pin Connections............................................................................ E-15

© National Instruments Corporation xi SCXI-1160 User Manual
About This Manual
This manual describes the electrical and mechanical aspects of the SCXI-1160 and contains
information concerning its operation and programming. The SCXI-1160 is a member of the
National Instruments Signal Conditioning eXtensions for Instrumentation (SCXI) Series modules
for the National Instruments data acquisition plug-in boards. This module is designed for
switching and controlling low-level and power signals. The SCXI-1160 operates as 16 relay
channels. Each channel is isolated and independently configurable.
This manual describes the installation, basic programming considerations, and theory of
operation for the SCXI-1160.
Organization of This Manual
The SCXI-1160 User Manual is organized as follows:
• Chapter 1, Introduction, describes the SCXI-1160; lists the contents of your SCXI-1160 kit;
describes the optional software, optional equipment, and custom cables; and explains how to
unpack the SCXI-1160 kit.
• Chapter 2, Configuration and Installation, describes the SCXI-1160 jumper configurations,
installation of the SCXI-1160 into the SCXI chassis, signal connections to the SCXI-1160,
and cable wiring.
• Chapter 3, Theory of Operation, contains a functional overview of the SCXI-1160 module
and explains the operation of each functional unit making up the SCXI-1160.
• Chapter 4, Register Descriptions, describes in detail the SCXI-1160 Address Handler, the
Module ID Register, the Data Register, the Status Register, and the Slot 0 registers.
• Chapter 5, Programming, contains a functional programming description of the SCXI-1160
and Slot 0.
• Appendix A, Specifications, lists the specifications for the SCXI-1160.
• Appendix B, Rear Signal Connector, describes the pinout and signal names for the
SCXI-1160 50-pin rear signal connector, including a description of each connection.
• Appendix C, SCXIbus Connector, describes the pinout and signal names for the SCXI-1160
96-pin SCXIbus connector, including a description of each connection.
• Appendix D, SCXI-1160 Front Connector, describes the pinout and signal names for the
SCXI-1160 front connector, including a description of each connection.
• Appendix E, SCXI-1160 Cabling, describes how to use and install the hardware accessories
for the SCXI-1160.
• Appendix F, Aromat Relay Technical Data, contains technical data on Aromat Corporation
relays.

About This Manual
SCXI-1160 User Manual xii© National Instruments Corporation
•Appendix G, Customer Communication, contains forms you can use to request help from
National Instruments or to comment on our products.
•The Glossary contains an alphabetical list and description of terms used in this manual,
including abbreviations, acronyms, metric prefixes, mnemonics, and symbols.
•The Index contains an alphabetical list of key terms and topics in this manual, including the
page where you can find each one.
Conventions Used in This Manual
The following conventions are used in this manual:
!This icon below bold italicized text denotes a caution, which advises
you of precautions to take to avoid injury, data loss, or a system
crash.
DIO board DIO board refers to the National Instruments AT-DIO-32F, MC-DIO-24,
MC-DIO-32F, NB-DIO-24, NB-DIO-96, NB-DIO-32F, PC-DIO 24, and
PC-DIO-96 digital I/O data acquisition boards unless otherwise noted.
italic Italic text denotes emphasis, a cross reference, or an introduction to a key
concept.
Lab board Lab board refers to the National Instruments Lab-LC, Lab-NB, Lab-PC,
and Lab-PC+ boards unless otherwise noted.
MCMC refers to the Micro Channel series computers.
MIO board MIO board refers to the National Instruments AT-MIO-16,
AT-MIO-16F-5, AT-MIO-16X, MC-MIO-16, NB-MIO-16, and
NB-MIO-16X multichannel I/O data acquisition boards unless otherwise
noted.
monospace Lowercase text in this font denotes text or characters that are to be literally
input from the keyboard, sections of code, programming examples, and
syntax examples. This font is also used for the proper names of disk
drives, paths, directories, programs, subprograms, subroutines, device
names, functions, variables, filenames, and extensions, and for statements
and comments taken from program code.
NBNB refers to the NuBus series computers.
PCPC refers to the IBM PC/XT, the IBM PC AT, and compatible computers.
SCXIbus SCXIbus refers to the backplane in the chassis. A signal on the backplane
is referred to as the SCXIbus <signal name> line (or signal). The
SCXIbus descriptor may be omitted when the meaning is clear.
Descriptions of all SCXIbus signals are given in Appendix C, SCXIbus
Connector.
Slot 0 Slot 0 refers to the power supply and control circuitry in the SCXI chassis.
Abbreviations, acronyms, metric prefixes, mnemonics, symbols, and terms are listed in the
Glossary.

About This Manual
© National Instruments Corporation xiii SCXI-1160 User Manual
Related Documentation
The following documents contain information that you may find helpful as you read this manual:
•AT-DIO-32F User Manual (320147-01)
• AT-MIO-16 User Manual (part number 320476-01)
•AT-MIO-16F-5 User Manual (part number 320266-01)
•AT-MIO-16X User Manual (part number 320488-01)
•Lab-LC User Manual (part number 320380-01)
•Lab-NB User Manual (part number 320174-01)
•Lab-PC User Manual (part number 320205-01)
•Lab-PC+ User Manual (part number 320502-01)
•MC-DIO-24 User Manual (part number 320129-01)
•MC-DIO-32F User Manual (part number 320128-01)
•MC-MIO-16 User Manual, Revisions A to C (part number 320130-01)
•MC-MIO-16 User Manual, Revision D (part number 320560-01)
•NB-DIO-24 User Manual (part number 320094-01)
•NB-DIO-32F User Manual (part number 320095-01)
•NB-DIO-96 User Manual (part number 320384-01)
•NB-MIO-16 User Manual (part number 320295-01)
•NB-MIO-16X User Manual (part number 320157-01)
•PC-DIO-24 User Manual (320288-01)
•PC-DIO-96 User Manual (320289-01)
•PC-LPM-16 User Manual (part number 320287-01)
•SCXI-1000/1001 User Manual (part number 320423-01)
Customer Communication
National Instruments wants to receive your comments on our products and manuals. We are
interested in the applications you develop with our products, and we want to help if you have
problems with them. To make it easy for you to contact us, this manual contains comment and
configuration forms for you to complete. These forms are in Appendix G, Customer
Communication, at the end of this manual.

© National Instruments Corporation 1-1 SCXI-1160 User Manual
Chapter 1
Introduction
This chapter describes the SCXI-1160; lists the contents of your SCXI-1160 kit; describes the
optional software, optional equipment, and custom cables; and explains how to unpack the
SCXI-1160 kit.
Figure 1-1 shows the SCXI-1160 module.
Figure 1-1. SCXI-1160 Relay Module
The SCXI-1160 module consists of 16 isolated single-pole double-throw (SPDT) or form C
latching relay channels. The SCXI-1160 is a module for switching and controlling.
The SCXI-1160 operates with full functionality with National Instruments MIO-16 boards;
Lab-NB, Lab-PC, Lab-PC+, Lab-LC, and PC-LPM-16 boards; and with the DIO-24, DIO-32F,
and DIO-96 boards. You can also use the SCXI-1160 with other systems that comply with the
specifications given in Chapter 2, Configuration and Installation. You can control several
SCXI-1160s in a single chassis with one data acquisition board.
An additional shielded terminal block has screw terminals for easy signal attachment to the
SCXI-1160.
With the SCXI-1160, the SCXI chassis can serve as a controller or switcher in laboratory testing,
production testing, and industrial process monitoring.

Introduction Chapter 1
SCXI-1160 User Manual 1-2 © National Instruments Corporation
What Your Kit Should Contain
The contents of the SCXI-1160 kit (part number 776572-60) are listed as follows.
Kit Component Part Number
SCXI-1160 module 182139-01
SCXI-1160 User Manual 320513-01
If your kit is missing any of the components, contact National Instruments.
Optional Software
This manual contains complete instructions for directly programming the SCXI-1160. You can
order separate software packages for controlling the SCXI-1160 from National Instruments.
When you combine the PC, AT, and MC data acquisition boards with the SCXI-1160, you can
use LabVIEW for Windows or LabWindows for DOS. LabVIEW and LabWindows are
innovative program development software packages for data acquisition and control applications.
LabVIEW uses graphical programming, whereas LabWindows enhances Microsoft C and
QuickBASIC. Both packages include extensive libraries for data acquisition, instrument control,
data analysis, and graphical data presentation.
Your National Instruments data acquisition board is shipped with the NI-DAQ software.
NI-DAQ has a library of functions that can be called from your application programming
environment. These functions include routines for analog input (A/D conversion), buffered data
acquisition (high speed A/D conversion), analog output (D/A conversion), waveform generation,
digital I/O, counter/timer, SCXI, RTSI, and self-calibration. NI-DAQ maintains a consistent
software interface among its different versions so you can switch between platforms with
minimal modifications to your code.
You can also use the SCXI-1160, together with the PC, AT, and MC data acquisition boards,
with NI-DAQ software for DOS/Windows/LabWindows. NI-DAQ software for
DOS/Windows/LabWindows comes with language interfaces for Professional BASIC, Turbo
Pascal, Turbo C, Turbo C++, Borland C++, and Microsoft C for DOS; and Visual Basic, Turbo
Pascal, Microsoft C with SDK, and Borland C++ for Windows. NI-DAQ software for
DOS/Windows/LabWindows is on high-density 5.25 in. and 3.5 in. diskettes.
You can use the SCXI-1160, together with the NB Series data acquisition boards, with
LabVIEW for Macintosh, a software system that features interactive graphics, a state-of-the-art
user interface, and a powerful graphical programming language. The LabVIEW Data
Acquisition VI Library, a series of VIs for using LabVIEW with National Instruments boards, is
included with LabVIEW. The LabVIEW Data Acquisition VI Library is functionally equivalent
to the NI-DAQ software for Macintosh.
You can also use the SCXI-1160, combined with the NB Series data acquisition boards, with
NI-DAQ software for Macintosh. NI-DAQ software for Macintosh, which is shipped with all
National Instruments Macintosh data acquisition boards, comes with language interfaces for

Chapter 1 Introduction
© National Instruments Corporation 1-3 SCXI-1160 User Manual
MPW C, THINK C, Pascal, and Microsoft QuickBASIC. Any language that uses Device
Manager Toolbox calls can access NI-DAQ software for Macintosh.
Part numbers for these software products are as follows:
Software Part Number
LabVIEW for Windows 776670-01
LabWindows
Standard package 776473-01
Advanced Analysis Library 776474-01
Standard package with Advanced Analysis Library 776475-01
NI-DAQ software for DOS/Windows/LabWindows 776250-01
LabVIEW for Macintosh 776141-01
NI-DAQ software for Macintosh 776181-01
Optional Equipment
Equipment Part Number
SCXI-1324 front terminal block 776573-24
SCXI-1340 cable assembly 776574-40
SCXI-1341 Lab-NB/Lab-PC/Lab-PC+ cable assembly 776574-41
SCXI-1342 PC-LPM-16 cable assembly 776574-42
SCXI-1343 rear screw terminal adapter 776574-43
SCXI-1344 Lab-LC cable assembly 776574-44
SCXI-1351 one slot extender cable 776575-51
SCXI-1348 DIO-32F cable assembly 776574-48
Standard ribbon cable 0.5 m
1.0 m 180524-05 180524-10
NB5 cable 0.5 m
1.0 m 181304-05 181304-10
Refer to the Signal Connections section in Chapter 2, Configuration and Installation, and to
Appendix E, SCXI-1160 Cabling, for additional information on cabling, connectors, and
adapters.
Custom Cables
The SCXI-1160 rear signal connector is a 50-pin male ribbon-cable header. The manufacturer
part number National Instruments uses for this header is as follows:
• AMP Inc. (part number 1-103310-0)

Introduction Chapter 1
SCXI-1160 User Manual 1-4 © National Instruments Corporation
The mating connector for the SCXI-1160 rear signal connector is a 50-position polarized
ribbon-socket connector with strain relief. National Instruments uses a polarized or keyed
connector to prevent inadvertent upside-down connection to the SCXI-1160. Recommended
manufacturer part numbers for this mating connector are as follows:
• Electronic Products Division/3M (part number 3425-7650)
• T&B/Ansley Corporation (part number 609-5041CE)
Standard 50-conductor 28 AWG stranded ribbon cables that work with these connectors are as
follows:
• Electronic Products Division/3M (part number 3365/50)
• T&B/Ansley Corporation (part number 171-50)
The SCXI-1160 front connector is a special 48-pin DIN C male connector. The manufacturer
part number National Instruments uses for this connector is as follows:
• ERNI Components, Inc. (part number 913523)
The mating connector for the SCXI-1160 front connector is a special 48-pin reversed DIN C
female connector. National Instruments uses a polarized and keyed connector to prevent
inadvertent upside-down connection to the SCXI-1160. The manufacturer part number National
Instruments uses for this mating connector is as follows:
• ERNI Components, Inc. (part number 913524)
Unpacking
Your SCXI-1160 module is shipped in an antistatic package to prevent electrostatic damage to
the module. Several components on the module can be damaged by electrostatic discharge. To
avoid such damage in handling the module, take the following precautions:
• Touch the antistatic package to a metal part of your SCXI chassis before removing the
module from the package.
• Remove the module from the package and inspect the module for loose components or any
other sign of damage. Notify National Instruments if the module appears damaged in any
way. Do not install a damaged module into your SCXI chassis.

© National Instruments Corporation 2-1 SCXI-1160 User Manual
Chapter 2
Configuration and Installation
This chapter describes the SCXI-1160 jumper configurations, installation of the SCXI-1160 into
the SCXI chassis, signal connections to the SCXI-1160, and cable wiring.
Module Configuration
The SCXI-1160 includes five jumpers that are shown in the parts locator diagrams in Figures 2-1
and 2-2. Figure 2-1 shows the general parts locator diagram of the SCXI-1160 and Figure 2-2
shows a detailed parts locator diagram of the SCXI-1160.

Configuration and Installation Chapter 2
SCXI-1160 User Manual 2-4 © National Instruments Corporation
The following warnings contain important safety information concerning hazardous voltages.
Caution
!
Do not operate the module in an explosive atmosphere or where there may be
flammable gases or fumes.
Keep away from live circuits. Do not remove equipment covers or shields unless
you are trained to do so. If signal wires are connected to the module or terminal
block, dangerous voltages may exist even when the equipment is turned off. To
avoid dangerous electrical shock, do not perform procedures involving cover or
shield removal unless you are qualified to do so.
Do not operate damaged equipment. The safety protection features built into this
module can become impaired if the module becomes damaged in any way. If it is
damaged, turn the module off and do not use it until service-trained personnel can
check its safety. If necessary, return the module to National Instruments for
service and repair to ensure that its safety is not compromised.
Do not substitute parts or modify equipment. Because of the danger of
introducing additional hazards, do not install unauthorized parts or modify the
module. Return the module to National Instruments for service and repair to
ensure that its safety features are not compromised.
When using the terminal block with high common-mode voltages, your signal
wires must be insulated appropriately. National Instruments is not liable for any
damages or injuries resulting from inadequate signal wire insulation.
When connecting or disconnecting signal lines to the SCXI-1324 terminal block
screw terminals, the lines must be powered off. Potential differences between the
lines and the SCXI-1160 ground create a shock hazard while connecting the lines.
Connections, including power signals to ground and vice versa, that exceed any of
the maximum signal ratings on the SCXI-1160 can result in damage to any or all
of the boards connected to the SCXI chassis, to the host computer, and to the
SCXI-1160 module. National Instruments is not liable for any damages or
injuries resulting from incorrect signal connections.
If high voltages (≥42 Vrms) are present, the safety earth ground wire must be
connected to the safety earth ground solder lug on the SCXI-1324 terminal block
This provides protection against electric shock when the terminal block is not
connected to the chassis. To connect the safety earth ground to the strain-relief
tab, run an earth ground wire in the cable from the signal source to the terminal
block. National Instruments is not liable for any damages or injuries resulting
from inadequate safety earth ground connections.
Use this module only with a UL Listed SCXI chassis.