National Instruments NI PXI-1056 User Manual

PXI

NI PXI-1056 User Manual

NI PXI-1056 User Manual

September 2005
371551A-01

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© 2005 National Instruments Corporation. All rights reserved.

Important Information

Warranty

The NI PXI-1056 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.

E

XCEPT AS SPECIFIED HEREIN, NATIONAL INSTRUMENTS MAKES NO WARRANTIES, EXPRESS OR IMPLIED, AND SPECIFICALLY DISCLAIMS ANY WAR RANTY OF

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE . CUSTOMER’S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF

N

ATIONAL INSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER. NATIONAL INSTRUMENTS WILL NOT BE LIABLE FOR
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negligence. Any action against National Instruments must be brought within one year after the cause of action accrues. National Instruments
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damages, defects, malfunctions, or service failures caused by owner’s failure to follow the National Instruments installation, operation, or
maintenance instructions; owner’s modification of the product; owner’s abuse, misuse, or negligent acts; and power failure or surges, fire,
flood, accident, actions of third parties, or other events outside reasonable control.

Copyright

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Patents

For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txt file
on your CD, or

ni.com/patents.

WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS

(1) NATIONAL INSTRUMENTS PRODUCTS ARE NOT DESIGNED WITH COMPONENTS AND TESTING FOR A LEVEL OF
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ANY LIFE SUPPORT SYSTEMS WHOSE FAILURE TO PERFORM CAN REASONABLY BE EXPECTED TO CAUSE SIGNIFICANT
INJURY TO A HUMAN.

(2) IN ANY APPLICATION, INCLUDING THE ABOVE, RELIABILITY OF OPERATION OF THE SOFTWARE PRODUCTS CAN BE
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COMPUTER HARDWARE MALFUNCTIONS, COMPUTER OPERATING SYSTEM SOFTWARE FITNESS, FITNESS OF COMPILERS
AND DEVELOPMENT SOFTWARE USED TO DEVELOP AN APPLICATION, INSTALLATION ERRORS, SOFTWARE AND
HARDWARE COMPATIBILITY PROBLEMS, MALFUNCTIONS OR FAILURES OF ELECTRONIC MONITORING OR CONTROL
DEVICES, TRANSIENT FAILURES OF ELECTRONIC SYSTEMS (HARDWARE AND/OR SOFTWARE), UNANTICIPATED USES OR
MISUSES, OR ERRORS ON THE PART OF THE USER OR APPLICATIONS DESIGNER (ADVERSE FACTORS SUCH AS THESE ARE
HEREAFTER COLLECTIVELY TERMED “SYSTEM FAILURES”). ANY APPLICATION WHERE A SYSTEM FAILURE WOULD
CREATE A RISK OF HARM TO PROPERTY OR PERSONS (INCLUDING THE RISK OF BODILY INJURY AND DEATH) SHOULD
NOT BE RELIANT SOLELY UPON ONE FORM OF ELECTRONIC SYSTEM DUE TO THE RISK OF SYSTEM FAILURE. TO AVOID
DAMAGE, INJURY, OR DEATH, THE USER OR APPLICATION DESIGNER MUST TAKE REASONABLY PRUDENT STEPS TO
PROTECT AGAINST SYSTEM FAILURES, INCLUDING BUT NOT LIMITED TO BACK-UP OR SHUT DOWN MECHANISMS.
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
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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.

Contents

About This Manual

Conventions ...................................................................................................................vii

Related Documentation..................................................................................................viii

Chapter 1
Getting Started

Unpacking......................................................................................................................1-1

What You Need to Get Started ......................................................................................1-1

Key Features ..................................................................................................................1-2

Chassis Description........................................................................................................1-3

Optional Equipment.......................................................................................................1-4

EMC Filler Panels ...........................................................................................1-4

Rear Rack Mount Kits .....................................................................................1-4

PXI-1056 Backplane Overview .....................................................................................1-5

Interoperability with CompactPCI ..................................................................1-5

System Controller Slot ....................................................................................1-5

Star Trigger Slot ..............................................................................................1-5

Peripheral Slots................................................................................................1-6

Local Bus.........................................................................................................1-6

Trigger Bus......................................................................................................1-8

System Reference Clock..................................................................................1-8

Chapter 2
Installation and Configuration

Safety Information .........................................................................................................2-1

Chassis Cooling Considerations ....................................................................................2-2

Providing Adequate Clearance ........................................................................2-2

Setting Fan Speed............................................................................................2-3

Installing Filler Panels.....................................................................................2-3

Rack Mounting ..............................................................................................................2-4

Connecting Safety Ground.............................................................................................2-4

Connecting to Power Source..........................................................................................2-4

Installing a PXI Controller.............................................................................................2-5

Installing PXI Modules..................................................................................................2-7

Power Switch LED Indicator.........................................................................................2-8

Front Panel LED Indicators ...........................................................................................2-8

© National Instruments Corporation v NI PXI-1056 User Manual

Contents

Remote Voltage, Temperature, and Fan Monitoring..................................................... 2-9

PXI System Configuration with MAX .......................................................................... 2-14

Using System Configuration and Initialization Files .................................................... 2-17

Chapter 3
Maintenance

Service Interval.............................................................................................................. 3-1

Preparation.....................................................................................................................3-1

Cleaning......................................................................................................................... 3-1

Cleaning and Replacing the Fan Filter .......................................................................... 3-2

Resetting the AC Mains Circuit Breaker....................................................................... 3-3

Replacing the Modular Power Supply........................................................................... 3-3

Serial Communication Command Set............................................................. 2-10

Terminal Settings.............................................................................. 2-10

RS-232 Command Syntax ................................................................ 2-10

Basic PXI System Configuration .................................................................... 2-15

Trigger Configuration in MAX....................................................................... 2-16

PXI Trigger Bus Routing ................................................................................ 2-16

Interior Cleaning ............................................................................................. 3-2

Exterior Cleaning ............................................................................................ 3-2

Removal .......................................................................................................... 3-4

Installation.......................................................................................................3-4

Configuration .................................................................................................. 3-4

Connecting Safety Ground.............................................................................. 3-4

Connecting to Power Source........................................................................... 3-4

Appendix A
Specifications

Appendix B
Pinouts

Appendix C
Technical Support and Professional Services

Glossary

Index

NI PXI-1056 User Manual vi ni.com

About This Manual

The NI PXI-1056 User Manual contains information about installing,
configuring, using, and maintaining the NI PXI-1056 18-slot chassis.

Conventions

The following conventions are used in this manual:

» The » symbol leads you through nested menu items and dialog box options

to a final action. The sequence File»Page Setup»Options directs you to
pull down the File menu, select the Page Setup item, and select Options
from the last dialog box.

This icon denotes a note, which alerts you to important information.

This icon denotes a caution, which advises you of precautions to take to
avoid injury, data loss, or a system crash. When this symbol is marked on
the product, refer to the Read Me First: Safety and Radio-Frequency
Interference document, shipped with the product, for precautions to take.

bold Bold text denotes items that you must select or click in the software, such

as menu items and dialog box options. Bold text also denotes parameter
names.

italic Italic text denotes variables, emphasis, a cross reference, or an introduction

to a key concept. Italic text also denotes text that is a placeholder for a word
or value that you must supply.

monospace Text in this font denotes text or characters that you should enter 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, operations,
variables, filenames and extensions, and code excerpts.

© National Instruments Corporation vii NI PXI-1056 User Manual

About This Manual

Related Documentation

The following documents contain information that you might find helpful
as you read this manual:

• CompactPCI Specification PICMG 2.0 R 3.0

• PXI Hardware Specification, Revision 2.2

• PXI Software Specification, Revision 2.2

• IEEE 1101.1-1991, IEEE Standard for Mechanical Core

Specifications for Microcomputers Using IEC 603-2 Connectors

• IEEE 1101.10, IEEE Standard for Additional Mechanical

Specifications for Microcomputers Using IEEE 1101.1 Equipment
Practice

NI PXI-1056 User Manual viii ni.com

Getting Started

This chapter describes the key features of the PXI-1056 chassis and lists
the kit contents and optional equipment you can order from National
Instruments.

Unpacking

Carefully inspect the shipping container and the chassis for damage. Check
for visible damage to the metal work. Check to make sure all handles,
hardware, and switches are undamaged. Inspect the inner chassis for any
possible damage, debris, or detached components. If damage appears to
have been caused during shipment, file a claim with the carrier. Retain the
packing material for possible inspection and/or reshipment.

What You Need to Get Started

The PXI-1056 kit contains the following items:

1

❑ PXI-1056 chassis

❑ Filler panels

❑ AC power cable (refer to Table 1-1 for AC power cables)

❑ NI PXI-1056 User Manual

❑ Read Me First: Safety and Radio-Frequency Interference

❑ Driver CD-ROM containing NI PXI chassis software

❑ Chassis number labels

© National Instruments Corporation 1-1 NI PXI-1056 User Manual

Chapter 1 Getting Started

Key Features

Table 1-1. AC Power Cables

Power Cable Reference Standards

Standard 120 V (USA) NEMA 5-15

Switzerland 220 V SEV

Australia 240 V AS C112

Universal Euro 230 V CEE (7), II, IV, VII IEC83

North America 240 V NEMA 6-15

United Kingdom 230 V BS 1363/IEC83

If you are missing any of the items listed in Table 1-1, or if you have the
incorrect AC power cable, contact National Instruments.

The PXI-1056 combines a high-performance 18 slot 3U-sized (or 4 3U and
7 6U slot) PXI backplane with a high-output power supply and a structural
design that has been optimized for maximum usability in a wide range of
applications. The modular design of the chassis ensures a high level of
maintainability, resulting in a very low mean time to repair (MTTR). The
PXI-1056 complies with the PXI Hardware Specification, Revision 2.2
(32-bit), offering advanced timing and synchronization features.

Note The PXI-1056 chassis only complies with the 32-bit/33 MHz operational specs of

the PXI Hardware Specification.

The key features of the PXI-1056 include the following:

• PXI and CompactPCI (PICMG 2.0 R 3.0) module compatibility

• 4 3U-sized and 7 6U-sized dual-stack capable slots

• Universal AC input: automatic voltage and frequency ranging

• Over-current protection through push-reset circuit breaker (no
AC-input fuses to replace)

• Removable modular power-supply shuttle

• Remote voltage, temperature, and fan monitoring through a rear-panel
RS-232 connector

• On/Off (Standby) power switch on the front panel for easy access

NI PXI-1056 User Manual 1-2 ni.com

• Temperature-sensing module that can adjust fan speed based on
air-intake temperature to minimize audible noise

• Front-panel LEDs that indicate a voltage regulation failure, a fan
failure, or over-temperature condition

• Programmable PXI trigger routing between PXI bus segments

• Optional carrying handle and feet for portability

• Front rack mount brackets and handles

Chassis Description

Figures 1-1 and 1-2 show the key features of the PXI-1056 chassis front
and rear panels. Figure 1-1 shows the front view of the PXI-1056.
Figure 1-2 shows the rear view.

Chapter 1 Getting Started

2

3

4

5

6

1 On/Off (Standby) Power Switch
2 Mounting Brackets
3 3U Filler Panels
4 Generic Peripheral Slots

1

7

5 Chassis Handle
6 6U Filler Panels
7 Rubber Feet
8 Controller Expansion Slots

9 System Controller Slot
10 Star Trigger/Peripheral Slot
11 Voltage/Fan/Temperature LEDs

Figure 1-1. Front View of the PXI-1056 Chassis

11

NI PXI-1056

4

10

9

8

2

© National Instruments Corporation 1-3 NI PXI-1056 User Manual

Chapter 1 Getting Started

1

2

3

2

1 Fan Filter Cover
2 Power Supply Shuttle Retainer Screws (x4)
3 Power Supply Shuttle Handles (x2)
4 Chassis Ground Screw
5 Circuit Breaker

Optional Equipment

7

8

4

5

6 Universal AC Inlet
7 Fan Speed Selector Switch
8 RS-232 Connector for Remote

Voltage/Temperature/Fan Monitoring

Figure 1-2. Rear View of the PXI-1056 Chassis

6

2

3

2

Contact National Instruments to order the following options for the
PXI-1056 chassis.

EMC Filler Panels

Optional EMC filler panel kits are available from National Instruments.

Rear Rack Mount Kits

A rear rack mount kit option is available for mounting the PXI-1056 chassis
into a 19 in. instrument cabinet.

NI PXI-1056 User Manual 1-4 ni.com

PXI-1056 Backplane Overview

Interoperability with CompactPCI

The PXI-1056 backplane is interoperable with 5 V and universal
PXI-compatible products and standard CompactPCI products. This is an
important feature, because some PXI systems may require components that
do not implement PXI-specific features. For example, you may want to use
a standard CompactPCI network interface card in a PXI chassis.

The signals on the backplane P1 connectors meet the requirements of the
CompactPCI specification for both peripheral and system modules. Refer
to Appendix B, Pinouts, for pinout information.

The PXI-specific signals are on the backplane P2 connectors and are
found only on those signal lines reserved or not used in the CompactPCI
64-bit specification. Therefore, all modules that meet the requirements
of the CompactPCI 64-bit specification will function in the PXI-1056.
Refer to Appendix B, Pinouts, for pinout information.

Note The PXI-1056 backplane is 32-bit PCI. 64-bit CompactPCI cards will operate in

32-bit mode in this chassis.

Chapter 1 Getting Started

The PXI-1056 backplane has +5 V V(I/O). Refer to the CompactPCI
Specification PICMG 2.0 R 3.0 for details regarding V(I/O).

System Controller Slot

The system controller slot is slot 1 of the chassis as defined by the PXI
Specification. It has one controller expansion slot for system controller
modules that are wider than one slot. As defined in the PXI Specification,
these slots allow the controller to expand to the left to prevent the controller
from using peripheral slots.

Star Trigger Slot

The star trigger (ST) slot is slot 2. This slot has dedicated equal-length
trigger lines between slot 2 and peripheral slots 3 through 15 (refer to
Figure 1-3). The PXI Specification defines only 13 star trigger lines;
therefore, the last three slots do not receive a star trigger. Slot 2 is intended
for modules with ST functionality that can provide individual triggers to all
other peripheral modules. However, if you do not require advanced trigger
functionality, you can install any standard peripheral module in this slot.

© National Instruments Corporation 1-5 NI PXI-1056 User Manual

Chapter 1 Getting Started

Peripheral Slots

Local Bus

The star trigger slot can also be used to provide a PXI_CLK10 signal to the
backplane. For more information regarding PXI_CLK10, refer to the

System Reference Clock section.

There are 17 3U-sized peripheral slots including the star trigger slot. Three
of these slots can only be used for 3U modules. The chassis has a number
of peripheral slots that can also be used in a 6U configuration. They can be
used for a mix of 3U and 6U modules, or they can be used to hold up to
7 6U modules.

The PXI backplane local bus is a daisy-chained bus that connects each
peripheral slot with adjacent peripheral slots (refer to Figure 1-3). For
example, slot 2’s right local bus connects to slot 3’s left local bus, and so on.

The left local bus signal lines on slot 2 are used for star trigger and do not
connect to slot 1. The right local bus signal lines on slots 4, 11, and 18 are
not routed anywhere. Likewise, the left local bus signal lines on shots 5 and
12 are not routed anywhere.

Each local bus is 13 lines wide and can pass analog signals up to 42 V
between cards or provide a high-speed TTL side-band digital
communication path that does not reduce the PXI bus bandwidth.

Initialization software uses the configuration information specific to
adjacent peripheral modules to evaluate local bus compatibility.

NI PXI-1056 User Manual 1-6 ni.com

PXI-1056 Backplane Configuration

Chapter 1 Getting Started

18

Bus

Local

17

Bus

Local

16

Bus

Local

15

Bus

Local

14

Bus

Local

13

PXI Trigger Bus Segment 3/PCI Bus Segment 3

Bus

Local

12

11

Bus

Local

10

Bus

Local

9

Bus

Local

8

Bus

Local

7

System Reference Clock Buffer and Detection Circuitry

Local

Bus

6

Bus

Local

5

er

Buff

to PCI Bridge 2

PXI Trigger Bus

Switch 2 and PCI

PXI Trigger Bus Segment 2/PCI Bus Segment 2

PCI

Buffer

PXI Trigger Bus

Switch 1 and

to PCI Bridge 1

Local

4

Bus

3

Bus

Local

Star Trigger Controller

2

2

PXI Star Triggers

System Controller

1

PXI Trigger Bus Segment 1/PCI Bus Segment 1

Figure 1-3. PXI CLK_10 and Star Trigger Routing

© National Instruments Corporation 1-7 NI PXI-1056 User Manual

Chapter 1 Getting Started

Trigger Bus

Note Although any trigger line may be routed in either direction, it cannot be routed in

more than one direction at a time.

All slots on each PXI bus segment share eight PXI trigger lines. You can
use these trigger lines in a variety of ways. For example, you can use
triggers to synchronize the operation of several different PXI peripheral
modules. In other applications, one module located in slot 2 can control
carefully timed sequences of operations performed on other modules in the
system. Modules can pass triggers to one another, allowing precisely timed
responses to asynchronous external events the system is monitoring or
controlling.

The PXI trigger lines from adjacent PXI trigger bus segments can be routed
in either direction across the PXI bridges through buffers. This allows you
to send trigger signals to, and receive trigger signals from, every slot in the
chassis. Static trigger routing (user-specified line and directional
assignments) can be configured through Measurement & Automation
Explorer (MAX). Dynamic routing of triggers (automatic line assignments)
is supported through certain National Instruments drivers like NI-DAQmx.

System Reference Clock

The PXI-1056 supplies the PXI 10 MHz system clock signal (PXI_CLK10)
independently to each peripheral slot. An independent buffer (having a
source impedance matched to the backplane and a skew of less than 250 ps
between slots) drives the clock signal to each peripheral slot. You can use
this common reference clock signal to synchronize multiple modules in a
measurement or control system. You can drive PXI_CLK10 from an
external source through the PXI_CLK10_IN pin on the P2 connector of the
star trigger slot. Refer to Table B-4, P2 (J2) Connector Pinout for the Star

Trigger Slot. Sourcing an external clock on this pin automatically overrides

the backplane’s 10 MHz source.

NI PXI-1056 User Manual 1-8 ni.com

Installation and Configuration

This chapter describes how to install, configure, and use the PXI-1056
chassis.

Before connecting the chassis to a power source, read this chapter and the
Read Me First: Safety and Radio-Frequency Interference document
included with your chassis.

Safety Information

Caution Before undertaking any troubleshooting, maintenance, or exploratory procedure,

carefully read the following caution notices.

This equipment contains voltage hazardous to human life and safety, and is
capable of inflicting personal injury.

• Chassis Grounding—The PXI-1056 requires a connection from the
premise wire safety ground to the PXI-1056 chassis ground. The earth
safety ground must be connected during use of this equipment to
minimize shock hazards. Refer to the Connecting Safety Ground
section for instructions on connecting safety ground.

• Live Circuits—Operating personnel and service personnel must not
remove protective covers when operating or servicing the PXI-1056.
Adjustments and service to internal components must be undertaken
by qualified service technicians. During service of this product, the
mains connector to the premise wiring must be disconnected.
Dangerous voltages may be present under certain conditions; use
extreme caution.

• Explosive Atmosphere—Do not operate the chassis in conditions
where flammable gases are present. Under such conditions this
equipment is unsafe and may ignite the gases or gas fumes.

• Part Replacement—Only service this equipment with parts that are
exact replacements, both electrically and mechanically. Contact
National Instruments for replacement part information. Installation of
parts with those that are not direct replacements may cause harm to

2

© National Instruments Corporation 2-1 NI PXI-1056 User Manual

Chapter 2 Installation and Configuration

personnel operating the chassis. Furthermore, damage or fire may
occur if replacement parts are unsuitable.

• Modification—Do not modify any part of the chassis from its original

condition. Unsuitable modifications may result in safety hazards.

Chassis Cooling Considerations

The PXI-1056 is designed to operate on a bench or in an instrument rack.
Determine how you want to use the PXI-1056 and follow the appropriate
installation instructions.

Providing Adequate Clearance

Apertures in the rear and along the left side of the chassis facilitate power
supply and module cooling. Air enters through a filter and fan inlet in the
right rear of the chassis and exits through the left side of the chassis, as
shown in Figure 2-1. Place the PXI-1056 on a bench top or in an instrument
rack so that the fan (air inlet) and the air outlet apertures along the right side
of the chassis have adequate ventilation. Keep other equipment a minimum
of 76.2 mm (3 in.) away from the air inlet on the rear of the chassis.

When rack mounting the PXI-1056, provide at least 44.5 mm (1.75 in.)
clearance on the right side of the unit for adequate venting. High-power
applications may require additional clearance.

NI PXI-1056 User Manual 2-2 ni.com

Chapter 2 Installation and Configuration

1

2

1 Air Outlets (Side of Chassis) 2 Air Intake (Back of Chassis)

Figure 2-1. PXI-1056 Chassis Airflow Side View

Install the chassis so that you can easily access the rear panel. This
simplifies replacing the air filter or power supply shuttle, if necessary.

Setting Fan Speed

The fan-speed selector switch is on the rear panel of the PXI-1056. Refer
to Figure 1-2, Rear View of the PXI-1056 Chassis, to locate the fan-speed
selector switch. Select HIGH for maximum cooling performance
(recommended) or AUTO for quieter operation. When set to AUTO,
the fan speed is determined by chassis intake air temperature.

Installing Filler Panels

To improve module cooling performance, install filler panels (provided
with the chassis) in unused or empty slots. Secure with the captive
mounting screws provided.

© National Instruments Corporation 2-3 NI PXI-1056 User Manual

Chapter 2 Installation and Configuration

Rack Mounting

Rack-mount applications may require the optional rear rack mount kit
available from National Instruments. Refer to Figure A-3, PXI-1056 Rack

Mount Components, and the instructions supplied with the rack mount kits

to install your PXI-1056 in an instrument rack.

Note You may want to remove the feet from the PXI-1056 when rack mounting. To do so,

remove the screws holding the feet in place.

Connecting Safety Ground

Caution The PXI-1056 chassis is designed with a three-position NEMA 5-15 style plug

for the U.S. that connects the ground line to the chassis ground. To minimize shock hazard,
make sure the electrical power outlet you use to power the chassis has an appropriate earth
safety ground.

If your power outlet does not have an appropriate ground connection, you
must connect the premise safety ground to the chassis grounding screw
located on the rear panel. Refer to Figure 1-2, Rear View of the PXI-1056

Chassis, to locate the chassis grounding screw. Complete the following

steps to connect the safety ground.

1. Connect a 16 AWG (1.3 mm) wire to the chassis grounding screw
using a grounding lug. The wire must have green insulation with a
yellow stripe or must be noninsulated (bare).

2. Attach the opposite end of the wire to permanent earth ground using
toothed washers or a toothed lug.

Connecting to Power Source

Caution Do not install modules prior to performing the following power-on test.

Attach input power through the rear AC inlet using the appropriate
AC power cable supplied. Refer to Figure 1-2, Rear View of the PXI-1056

Chassis, to locate the AC inlet.

Caution To completely remove power, you must disconnect the AC power cable.

NI PXI-1056 User Manual 2-4 ni.com

The power switch allows you to power on the chassis or place it in standby
mode. Push the power switch to the On (Left) position (if not already on).
Observe that the fan becomes operational and the power switch LED is a
steady green.

Installing a PXI Controller

This section contains general instructions for installing a PXI controller in
the PXI-1056 chassis. Refer to your PXI controller user manual for specific
instructions and cautions. Complete the following steps to install a
controller.

1. Plug in the PXI chassis before installing the controller. The power cord
grounds the chassis and protects it from electrical damage while you
install the controller. Make sure the chassis power switch is in the
Off (Standby) position.

Caution To protect both yourself and the chassis from electrical hazards, leave the chassis

off until you finish installing the controller.

2. Install the controller into the system controller slot (slot 1, indicated by
the red card guides) by first placing the controller edges into the front
controller guides (right and left). Slide the controller to the rear of the
chassis (making sure that the injector/ejector handle is pushed down as
shown in Figure 2-2).

Chapter 2 Installation and Configuration

© National Instruments Corporation 2-5 NI PXI-1056 User Manual