National Instruments Portable Generator NI PCI 6541 User Manual

GETTING STARTED GUIDE  
NI Digital Waveform  
Generator/Analyzer  
This document explains how to install, configure, test, and set up a National  
Instruments digital waveform generator/analyzer. This document applies  
specifically to the following devices:  
NI PXI/PCI-6541/6542 (NI 654X)  
NI PXI/PCI-6551/6552 (NI 655X)  
NI PXI-6561/6562 (NI 656X)  
For more information about features and programming, refer to the  
NI Digital Waveform Generator/Analyzer Help at Start»Programs»  
National Instruments»NI-HSDIO»Documentation»  
NI Digital Waveform Generator/Analyzer Help.  
Refer to the specifications document that ships with your device for detailed  
specifications.  
For free downloads of the most current versions of product documentation  
and example programs, visit ni.com/instruments.  
Contents  
Conventions ...............................................................................................2  
1. Verifying the System Components........................................................4  
Minimum System Requirements .......................................................4  
Recommended System.......................................................................4  
2. Unpacking..............................................................................................5  
3. Verifying the Kit Contents.....................................................................6  
Documentation...................................................................................6  
EMI Gasket (NI PXI-655X Only)......................................................6  
4. Installing the Software...........................................................................6  
Choose and Install Your ADE ...........................................................6  
Install NI-HSDIO...............................................................................7  
(Optional) Install the NI Digital Waveform Editor ...........................7  
January 2005  
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CompactPCI  
CompactPCI refers to the core specification defined  
by the PCI Industrial Computer Manufacturers  
Group (PICMG).  
italic  
Italic text denotes variables, emphasis, or a cross  
reference. This font 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.  
monospace bold  
Bold text in this font denotes the messages and  
responses that the computer automatically prints to  
the screen. This font also emphasizes lines of code  
that are different from the other examples.  
monospace italic  
Italic text in this font denotes text that is a  
placeholder for a word or value that you must  
supply.  
PCI  
Peripheral Component Interconnect (PCI) is a  
high-performance expansion bus architecture  
originally developed by Intel to replace ISA  
and EISA.  
PXI  
PCI eXtensions for Instrumentation (PXI) is a  
rugged, open system for modular instrumentation  
based on CompactPCI, with special mechanical,  
electrical, and software features.  
1. Verifying the System Components  
This section specifies the minimum system requirements and recommended  
system for NI-HSDIO and your digital waveform generator/analyzer.  
Minimum System Requirements  
The minimum system requirements include the following components  
and tools:  
Pentium 200 MHz or equivalent processor  
64 MB RAM  
A PXI chassis and controller or desktop computer  
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1/8 in. flathead screwdriver  
Number 1 Phillips screwdriver  
Microsoft Internet Explorer 5.5 or later  
Measurement & Automation Explorer (MAX) 3.1 or later  
A screen resolution of 800 × 600 with 256 colors (required for the  
NI Script Editor)  
The appropriate cable for your device, as shown in the following table:  
Table 1. NI Digital Waveform Generator/Analyzer Cables  
Device  
Cable  
Cable Part Number  
188142-01  
NI 654X  
NI 655X  
NI 656X  
NI SHC68-C68-D2  
NI SHC68-C68-D2  
NI SHB12X-B12X  
188142-01  
192344-01  
NI EMC Filler Panel Kit, available from NI (part number 778700-01)  
Recommended System  
The recommended system requirements include the following components  
and tools:  
Pentium III/Celeron 600 MHz or equivalent processor  
256 MB RAM  
A PXI chassis and controller or desktop computer  
1/8 in. flathead screwdriver  
Number 1 Phillips screwdriver  
Microsoft Internet Explorer 5.5 or later  
Measurement & Automation Explorer (MAX) 3.1 or later  
A screen resolution of 800 × 600 with 256 colors (required for the  
NI Script Editor)  
The appropriate cable for your device, listed in Table 1.  
A compatible connectivity accessory for your NI digital waveform  
generator/analyzer, listed in the following table:  
Table 2. NI Digital Waveform Generator/Analyzer Accessories  
Accessory  
Supported Devices  
NI 654X, NI 655X  
NI 654X, NI 655X  
NI CB-2162  
NI SMB-2163  
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Windows 2000/NT/XP, with all available critical updates and service  
packs  
One of the following application development environments (ADEs):  
LabVIEW 7.0 or later (LabVIEW 7.1 or later is required to use the  
NI-HSDIO Express VIs)  
LabVIEW Real-Time Module 7.1  
LabWindows/CVI6.0 or later  
Microsoft Visual C++ (MSVC) 6.0 or later  
2. Unpacking  
The NI digital waveform generator/analyzer ships in an antistatic package to  
prevent electrostatic discharge (ESD). ESD can damage several components  
on the device.  
Caution Never touch the exposed pins of connectors.  
To avoid ESD damage in handling the device, take the following precautions:  
Ground yourself with a grounding strap or by touching a grounded  
object.  
Touch the antistatic package to a metal part of your computer chassis  
before removing the device from the package.  
Remove the device from the package and inspect it for loose components or  
any other signs of damage. Notify NI if the device appears damaged in any  
way. Do not install a damaged device in your computer or chassis.  
Store the device in the antistatic package when the device is not in use.  
3. Verifying the Kit Contents  
Verify that the kit contains the following items:  
DVD-sized case, which contains the following items:  
NI-HSDIO (High-Speed Digital I/O) instrument driver software  
CDs, which include the NI Digital Waveform Generator/Analyzer  
Help  
NI Digital Waveform Generator/Analyzer Getting Started Guide  
NI digital waveform generator/analyzer  
Mounting screw (PCI devices only)  
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Other documentation included with the digital waveform  
generator/analyzer and driver software. Refer to the Documentation  
section for a list of the documentation you may have.  
Documentation  
The NI digital waveform generator/analyzer kit may also include the  
following documents:  
NI digital waveform generator/analyzer specifications—This printed  
document provides specifications for your device.  
Read Me First: Safety and Radio-Frequency Interference  
Maintain Forced-Air Cooling Note to Users  
Retrofitting Your PXI Module Note to Users  
EMI Gasket (NI PXI-655X Only)  
The NI PXI-655X kit also includes an EMI gasket and documentation that  
describes under what conditions you should install the gasket. Refer to  
step 5. Installing the Hardware for more information about the gasket.  
4. Installing the Software  
This section describes the software installation process for the NI digital  
waveform generator/analyzer.  
Choose and Install Your ADE  
You can create applications for your digital waveform generator/analyzer  
using LabVIEW 7.0 or later, LabWindows/CVI 6.0 or later, or Microsoft  
Visual C++ 5.0 or later.  
LabVIEW features interactive graphics, a state-of-the-art interface, and a  
powerful graphical programming language. LabWindows/CVI is a complete  
ANSI C ADE that features an interactive user interface, code generation  
tools, and the LabWindows/CVI Data Acquisition and Easy I/O libraries.  
Using LabVIEW or LabWindows/CVI can greatly reduce your application  
development time.  
If you have not already installed the ADE, follow the instructions in the  
product documentation to install your ADE now.  
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Install NI-HSDIO  
NI-HSDIO features a set of operations and attributes that allow you to  
programmatically configure and control the digital waveform  
generator/analyzer. To install NI-HSDIO, complete the following steps:  
1. Insert the first CD of the NI-HSDIO CD set. The NI-HSDIO installer  
should open automatically. If not, select Start»Run, and enter  
x:\setup.exe, where xis the letter of the CD drive.  
2. Follow the instructions in the installation prompts. For troubleshooting  
and operating system-specific instructions, refer to the Hardware  
Installation Wizard at ni.com/support/install.  
3. When the installer completes, a dialog box appears that asks if you want  
to restart, shut down, or exit. Select Restart.  
4. If you are using a system running the LabVIEW Real-Time Module,  
download NI-HSDIO to the target using MAX. Refer to the  
Measurement & Automation Explorer Remote Systems Help by selecting  
Help»Help Topics»Remote Systems in MAX.  
NI Script Editor  
The NI Script Editor is included on the NI-HSDIO CD and is installed when  
you install the driver. The NI Script Editor provides an intuitive interface  
to help you develop linking and looping pattern generation operations.  
NI Script Editor Help contains more information about the NI Script Editor.  
You can access NI Script Editor Help by launching the NI Script Editor and  
selecting Help»NI Script Editor Help from the toolbar.  
(Optional) Install the NI Digital Waveform Editor  
The NI Digital Waveform Editor (DWE) is included with the higher-memory  
versions of NI digital waveform generator/analyzers and also can be  
purchased separately at ni.com. The NI DWE allows you to easily import  
data from popular third-party EDA programs, create your own waveforms,  
edit these waveforms, and view acquired waveforms.  
If you are using the NI DWE, install it after you install NI-HSDIO.  
5. Installing the Hardware  
To install your NI digital waveform generator/analyzer, follow the  
instructions in the section that describes your hardware platform.  
When installing your hardware, follow the instructions in this section to  
ensure that your device can cool itself effectively. If the device temperature  
rises above the optimal operating temperature range, the device disables  
itself, and MAX or NI-HSDIO notifies you with an error message. For more  
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information on re-enabling your device, refer to the I Received a Thermal  
Shutdown Error section in Appendix B: Troubleshooting.  
Installing a PXI Module  
To install the module, refer to Figure 1 and complete the following steps:  
1
NI PXI-1042  
4
3
2
1
2
PXI Chassis  
Ejector Handle  
3
4
Captive Screw  
NI PXI Device  
Figure 1. PXI Installation  
1. Power down the chassis before installing the module.  
2. If the chassis has multiple fan speed settings, ensure that the fans are set  
to the highest setting. Do not set the fan speed to low or turn the fan off.  
3. Position the chassis so that you allow plenty of space between the chassis  
fan intake and exhaust vents. Blocking the fans affects the air flow  
needed for cooling. For more information, refer to the chassis  
documentation.  
4. If you need to use an EMI gasket to reduce high-frequency emissions,  
install it now. Refer to the Retrofitting Your PXI Module Note to Users  
for gasket installation instructions.  
5. Remove the packaging material on the PXI connector and on the screws.  
6. Ensure that the ejector handle is in the unlatched (downward) position,  
as shown in Figure 1.  
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7. Holding the module by the ejector handle, slide it into an empty slot,  
ensuring that the base card (on the left when looking at the front of the  
module) engages with the card guides in the chassis.  
8. Slide the module completely into the chassis and latch by pulling up on  
the ejector handle.  
9. Tighten the captive screws at the top and bottom of the module front  
panel.  
10. Before operating the module, install all chassis covers and filler panels.  
Missing filler panels disrupt the necessary air circulation in the chassis.  
Note NI recommends that you install slot blockers between  
modules to maximize air flow. NI recommends using the PXI  
Chassis Slot Blocker Kit, part number 778678-01, available for  
purchase at ni.com.  
NI PXI modules are sensitive instruments that should be handled carefully.  
Do not expose the module to temperatures or humidity beyond the rated  
maximums. Keep the module free of dust by cleaning with compressed air  
only. Do not clean the module with any solvents or liquids. For more  
information about module cooling, refer to the guidelines in the Maintain  
Forced-Air Cooling Note to Users included with your NI digital waveform  
generator/analyzer.  
Maintaining PXI Systems  
Clean the fan filters on the chassis regularly to prevent air circulation path  
blockage. Cleaning frequency depends on the amount of use and the  
operating environment. For specific information about cleaning procedures,  
and other recommended maintenance, refer to the module specifications and  
the chassis user documentation.  
Uninstalling PXI Modules  
When removing PXI modules from the chassis, first power down the chassis.  
Then ensure that you are grounded with a grounding strap or are touching a  
grounded metal surface. To avoid ESD, do not touch the exposed pins of the  
PXI connector or any exposed circuitry on the module. When not in use, PXI  
modules should be stored in the original antistatic packaging to avoid  
damage.  
Caution During operation the metal surfaces of PXI modules may  
become hot. Be careful when removing the module from the chassis  
or when moving it to a different peripheral slot. When removing the  
module, hold it by the ejector handle and front panel only.  
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Installing a PCI Device  
To install your PCI device, complete the following steps:  
1. Power off and unplug the PC.  
2. If the PC has multiple fan speed settings, ensure that the fans are set to  
the highest setting.  
3. Remove the PC cover.  
4. Insert the device into an open PCI slot, as shown in Figure 2.  
3
2
1
1
NI PCI Device  
2
PCI Slot  
3
Personal Computer  
Figure 2. PCI Installation  
NI recommends either leaving the slot adjacent to the fan side of the  
device empty or using lower-profile devices in the slot adjacent to the  
fan side.  
5. Secure the device with the screw provided in the kit.  
Caution It is important to completely screw the device into the PCI  
slot, both for mechanical stability and for creating a solid ground  
connection, which reduces signal noise. Some computer  
manufacturers use a plastic securing lever to secure PCI devices;  
such a lever is unacceptable and must be removed, or you must use  
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a different chassis. Improperly secured devices may affect the  
accuracy of device specifications.  
6. Before operating the device, install all filler panels. Missing filler panels  
disrupt the necessary air circulation in the PC.  
7. Replace the PC cover.  
8. Plug in and power on the PC.  
Maintaining PCI Systems  
Inspect the onboard fan on a regular basis to prevent fan and air circulation  
path blockage. Cleaning frequency depends on the amount of use and the  
operating environment.  
6. Configuring and Testing in MAX  
To configure and test the NI digital waveform generator/analyzer in MAX,  
complete the following steps:  
1. Launch MAX to configure and test the digital waveform  
generator/analyzer. MAX should automatically detect the device you  
installed.  
2. Expand Devices and Interfaces.  
If you are using an NI digital waveform generator/analyzer with the  
LabVIEW Real-Time Module, expand Remote Systems. Find your  
target IP address or name, expand it, and then expand Devices and  
Interfaces.  
3. Expand NI-DAQmx Devices.  
4. Check that your device appears under NI-DAQmx Devices.  
Note If your device does not appear under NI-DAQmx Devices,  
MAX did not detect the device, so you might need to refresh MAX  
by selecting File»Refresh from the MAX menu or pressing <F5>.  
5. You can perform a self-test on devices listed under NI-DAQmx Devices.  
The self-test ensures that the device is installed correctly and can  
communicate with NI-HSDIO. To perform a self-test, complete the  
following steps:  
a. Right-click the device you want to test and select Self-Test, shown  
in Figure 3.  
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Figure 3. Configuration Tree Shortcut Menu  
b. When the self-test finishes, a message window appears to indicate if  
an error occurred. If an error occurred, refer to ni.com/support  
for troubleshooting information.  
Tip If you need to reset the device with a hard reset, you can do so  
by right-clicking the device and selecting Reset Device from the  
shortcut menu shown in Figure 3.  
6. Record the device name assigned to the digital device. You need this  
information when you program the device.  
Using the Test Panel to Generate and Acquire Data  
To verify your device configuration, use the device test panel in MAX to  
generate and acquire simple digital data using your device by completing the  
following steps:  
1. Right-click the device under NI-DAQmx Devices, and select Test Panels  
as shown in Figure 3.  
2. Click the Generation tab.  
3. Select the Dynamic tab on the side of the pane.  
4. Click Select All to select all of your channels. The digital pattern now  
appears in the graph.  
5. Enter the frequency in the Clock Frequency control, located on the left  
side of the test panel.  
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6. Enter values for the generation and acquisition voltages in the controls  
below the Clock Frequency control. You can choose from standard logic  
families (NI 654X/655X) or enter High and Low values to create your  
own custom levels (NI 655X).  
7. Choose a fill pattern. The following figure shows the pattern control and  
the first few signals in the window.  
Tip When generating a Marching Ones or Marching Zeroes  
waveform, it is convenient to make the waveform size a multiple of  
the number of selected channels.  
8. Click Play to generate the pattern shown in the graph on the selected  
channels. The default generation option is Continuous, but you can  
toggle this setting using the control below the graph.  
The Play and Stop buttons are shown in the following figure.  
Because the data channels on the NI digital waveform generator/analyzer  
are bidirectional, while the data is being continuously generated on all of  
the channels, as in the previous step, you can acquire the data being  
generated.  
Note Refer to the specifications for your device for information on  
the setup and hold times and propagation delays associated with  
generation and acquisition operations. At some frequencies,  
generating and acquiring data on the same channels when no cable  
is attached to the DIGITAL DATA & CONTROL (DDC) connector  
violates these timing parameters and results in incorrectly sampled  
data. For information on proper signal acquisition, refer to the  
NI Digital Waveform Generator/Analyzer Help  
.
To acquire the pattern, complete the following steps:  
1. Click the Acquisition tab.  
2. Click Play. The device acquires the digital data that you generated in the  
previous steps, and the data is displayed on the graph.  
3. Click Close when you are finished.  
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7. Connecting Signals  
This section discusses what connections you can make to the device, and how  
to connect signals to the device for performing dynamic acquisition and  
dynamic generation. For device front panel diagrams and connector  
descriptions, refer to Appendix A: Device Front Panels.  
Connecting Cables and Accessories  
To make connections to the NI digital waveform generator/analyzer front  
panel SMB jack connectors, use a shielded 50 coaxial cable with an SMB  
plug end.  
Use an NI SHC68-C68-D2 cable for connections to the NI 654X/655X DDC  
connector. The NI SHC68-C68-D2 is designed for single-ended, high-speed  
digital signal transmission. The cable is shielded, with individual  
microcoaxial 50 lines for each signal. Use an SHB12X-B12X cable for  
connections to the NI 656X DDC connector. This cable is designed for  
differential, high-speed digital signal transmission.  
Using Accessories (NI 654X/655X Only)  
NI recommends using the NI CB-2162 single-ended digital I/O accessory to  
access the signals on the 68-pin DDC connector and to terminate the  
DIO channels. The NI CB-2162 also provides a platform for circuit  
prototyping and DUT testing. The NI CB-2162 is specifically designed for  
use with single-ended NI digital waveform generator/analyzers  
(NI 654X/655X). For more information about using the NI CB-2162, refer to  
the NI CB-2162 User Guide.  
NI also offers the NI SMB-2163 breakout box for National Instruments  
single-ended digital waveform generator/analyzers. The NI SMB-2163 offers  
coaxial SMB connectors for each channel on the DDC connector, providing  
an easy way to connect to other devices for testing and debugging. For more  
information about using the NI SMB-2163, refer to the NI SMB-2163 User  
Guide.  
Figures 4 and 5 show how to connect a single-ended NI digital waveform  
generator/analyzer and the NI CB-2162 and NI SMB-2163, respectively,  
using the NI SHC68-C68-D2 cable.  
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2
NI PXI-1042  
NI PXI-6551  
50 MHz Digital I/O  
ACCESS  
ACTIVE  
CLK  
IN  
PFI  
0
CLK  
OUT  
J15  
J5  
J6  
3
1
1
PXI Chassis with NI Digital Waveform  
Generator/Analyzer  
2
3
SHC68-C68-D2 Cable  
NI CB-2162 Accessory  
Figure 4. Connecting the NI CB-2162 Accessory  
NI PXI-1042  
NI PXI-6551  
50 MHz Digital I/O  
ACCESS  
ACTIVE  
CLK  
IN  
PFI  
0
CLK  
OUT  
2
1
3
1
PXI Chassis with NI Digital Waveform  
Generator/Analyzer  
2
3
NI SMB-2163 Accessory  
SHC68-C68-D2 Cable  
Figure 5. Connecting the NI SMB-2163 Accessory  
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Note If you are creating your own accessory to use with your  
device, you can purchase the mating connector for the VHDCI  
cable from NI (part number 778914-01).  
Whether you use NI cables and accessories or design your own, you should  
properly terminate cables to avoid improper measurements due to signal  
reflections, overshoot, and undershoot. Refer to the NI Digital Waveform  
Generator/Analyzer Help for more information about signal termination.  
Wiring for Common Measurements  
Dynamic generation and dynamic acquisition are two categories of  
applications that you can create for NI digital waveform generator/analyzers.  
This section provides information on the general wiring considerations for  
each type of application. Both examples use the NI CB-2162 for signal  
termination.  
Dynamic Generation  
When performing dynamic generation, an NI digital waveform  
generator/analyzer generates data through a matched impedance system that  
consists of a 50 output impedance, a 50 cable, and a 50 accessory.  
Figure 6 shows a diagram of such a system, using the NI 655X as an example.  
Depending on the loading of the peripheral device, you may need additional  
parallel termination resistance at the destination for optimal signal quality.  
Refer to the NI Digital Waveform Generator/Analyzer Help for more  
information about signal termination.  
Peripheral  
Device  
50  
50 Cable  
NI 655X  
NI CB-2162  
Figure 6. Dynamic Generation Functional Diagram  
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Dynamic Acquisition  
When performing dynamic acquisition with the NI 654X/655X, the source  
generating the signals needs a matched source impedance as close to 50 as  
possible to minimize signal reflections and maintain optimal signal quality.  
Figure 7 shows a diagram of a dynamic acquisition system using the NI 655X  
as an example.  
Peripheral  
Device  
R
T
R
50 Cable  
S
NI 655X  
NI CB-2162  
Figure 7. Dynamic Acquisition Functional Diagram  
Note NI digital waveform generator/analyzers have various input  
impedance settings, as shown in the following table.  
Table 3. Supported Impedance Settings  
Device  
Supported Input Impedance  
10 kΩ  
NI 654X  
NI 655X  
NI 656X*  
50 or 10 kΩ  
100 for channels configured for  
LVDS operation; 10 kfor channels  
configured for single-ended operation  
* NI 656X cables use 100 differential impedance rather than 50 single-ended  
impedance.  
Refer to the NI Digital Waveform Generator/Analyzer Help for more  
information about signal termination.  
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8. Programming the Digital Waveform  
Generator/Analyzer  
You can generate or acquire digital data with the NI digital waveform  
generator/analyzer using NI-HSDIO. You also can run the NI-HSDIO  
examples to demonstrate the functionality of your device.  
NI-HSDIO Instrument Driver  
The NI-HSDIO API features a set of operations and attributes that exercise  
all the functionality of the device, including configuration, control, and other  
device-specific functions.  
Information about programming with NI-HSDIO is available in the  
NI Digital Waveform Generator/Analyzer Help. This online document  
contains hardware information, concepts, a detailed function/VI reference  
for NI-HSDIO, and information specific to your device.  
NI-HSDIO Examples  
The NI-HSDIO examples demonstrate some of the functionality of the  
NI digital waveform generator/analyzers that you can use or integrate into  
your applications.  
For the location of example programs that you can use as a basis for your  
first NI-HSDIO program, refer to Programming»Getting Started with  
NI-HSDIO in the NI Digital Waveform Generator/Analyzer Help.  
Appendix A: Device Front Panels  
This section contains front panel connector figures and connector description  
tables that describe the signal connection options for NI digital waveform  
generator/analyzers.  
NI 654X/655X Front Panels and Connectors  
The NI 654X/655X front panels contain four connectors—three SMB jacks  
(CLK IN, PFI 0, and CLK OUT) and one 68-pin VHDCI connector  
(DIGITAL DATA & CONTROL, or DDC).  
Figure 8 shows the NI 6541 front panels and pinout, which are identical to  
those of the NI 6542. The DDC signals are described in Table 4. The  
SMB connectors are described in Table 7. The LEDs are described in  
Tables 8 and 9.  
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DIO 31  
GND  
DIO 29  
GND  
DIO 27  
GND  
1
2
3
4
5
6
7
8
9
35  
36  
37  
38  
39  
40  
41  
42  
43  
DIO 30  
GND  
DIO 28  
GND  
DIO 26  
GND  
DIO 24  
GND  
NI PCI-6541  
NI PXI-6541  
50 MHz Digital I/O  
CLK  
IN  
ACCESS  
ACTIVE  
DIO 25  
RESERVED  
DIO 23  
GND  
PFI  
0
DIO 22  
GND  
10 44  
11 45  
12 46  
13 47  
14 48  
15 49  
16 50  
17 51  
18 52  
19 53  
20 54  
21 55  
22 56  
23 57  
24 58  
25 59  
26 60  
27 61  
28 62  
29 63  
30 64  
31 65  
32 66  
33 67  
34 68  
CLK  
IN  
CLK  
OUT  
DIO 21  
GND  
DIO 19  
GND  
DIO 17  
GND  
DIO 15  
GND  
DIO 13  
GND  
DIO 11  
GND  
DIO 9  
GND  
DIO 7  
PFI 1  
DIO 5  
GND  
DIO 3  
PFI 3  
DIO 1  
GND  
DIO 20  
GND  
DIO 18  
GND  
DIO 16  
GND  
DIO 14  
RESERVED  
DIO 12  
GND  
DIO 10  
GND  
DIO 8  
GND  
DIO 6  
RESERVED  
DIO 4  
GND  
DIO 2  
PFI 2  
PFI 0  
CLK  
OUT  
DIGITAL  
DATA &  
CONTROL  
DIO 0  
GND  
STROBE  
GND  
DDC CLK OUT  
GND  
The Digital Data & Control connector pinout  
is the same for PXI and PCI devices.  
Figure 8. NI 654X Front Panel Connectors  
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Table 4. NI 654X DDC Connector Pins  
Signal  
Name  
Signal  
Type  
Pins  
Signal Description  
33  
67  
DDC CLK  
OUT  
Control  
Output terminal for the exported  
Sample clock.  
STROBE  
Control  
Terminal for the external Sample clock  
source which can be used for pattern  
acquisition.  
DIO <0..31> Data  
Bidirectional digital I/O data channels  
0 through 31.  
1, 3, 5, 7, 9,  
11, 13, 15, 17,  
19, 21, 23, 25,  
27, 29, 31, 35,  
37, 39, 41, 43,  
45, 47, 49, 51,  
53, 55, 57, 59,  
61, 63, 65  
26, 30, 64  
PFI <1..3>  
Control  
Input terminals to the NI 654X for  
external triggers, or output terminals  
from the NI 654X for events.  
2, 4, 6, 10, 12, GND  
14, 16, 18, 20,  
22, 24, 28, 32,  
34, 36, 38, 40,  
42, 44, 46, 48,  
50, 54, 56, 58,  
62, 66  
Ground  
Ground reference for signals.  
8, 52, 60  
RESERVED N/A  
These terminals are reserved for future  
use. Do not connect to these pins.  
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Figure 9 shows the NI 6551 front panels and pinout, which are identical to  
those of the NI 6552. The DDC signals are described in Table 5. The SMB  
connectors are described in Table 7. The LEDs are described in  
Tables 8 and 9.  
RESERVED  
GND  
RESERVED  
GND  
RESERVED  
GND  
RESERVED  
RESERVED  
RESERVED  
GND  
1
2
3
4
5
6
7
8
9
35  
36  
37  
38  
39  
40  
41  
42  
43  
RESERVED  
GND  
RESERVED  
GND  
RESERVED  
GND  
RESERVED  
GND  
NI PCI-6551  
NI PXI-6551  
50 MHz Digital I/O  
CLK  
IN  
ACCESS  
ACTIVE  
PFI  
0
RESERVED  
GND  
10 44  
11 45  
12 46  
13 47  
14 48  
15 49  
16 50  
17 51  
18 52  
19 53  
20 54  
21 55  
22 56  
23 57  
24 58  
25 59  
26 60  
27 61  
28 62  
29 63  
30 64  
31 65  
32 66  
33 67  
34 68  
CLK  
IN  
CLK  
OUT  
RESERVED  
GND  
RESERVED  
GND  
DIO 18  
GND  
DIO 16  
GND  
DIO 14  
RESERVED  
DIO 12  
GND  
DIO 10  
GND  
DIO 8  
GND  
DIO 6  
RESERVED  
DIO 4  
GND  
DIO 2  
PFI 2  
DIO 0  
GND  
STROBE  
GND  
PFI 0  
DIO 19  
GND  
DIO 17  
GND  
DIO 15  
GND  
DIO 13  
GND  
DIO 11  
GND  
DIO 9  
GND  
DIO 7  
PFI 1  
DIO 5  
GND  
DIO 3  
PFI 3  
DIO 1  
CLK  
OUT  
DIGITAL  
DATA &  
CONTROL  
GND  
DDC CLK OUT  
GND  
The Digital Data & Control connector pinout  
is the same for PXI and PCI devices.  
Figure 9. NI 655X Front Panel Connectors  
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Table 5. NI 655X DDC Connector Pins  
Signal  
Name  
Signal  
Type  
Pins  
Signal Description  
33  
67  
DDC CLK  
OUT  
Control  
Output terminal for the exported  
Sample clock.  
STROBE  
Control  
Terminal for the external Sample clock  
source which can be used for pattern  
acquisition.  
13, 15, 17, 19, DIO <0..19> Data  
21, 23, 25, 27,  
Bidirectional digital I/O data channels  
0 through 19.  
29, 31, 47, 49,  
51, 53, 55, 57,  
59, 61, 63, 65  
26, 30, 64  
PFI <1..3>  
Control  
Ground  
Input terminals to the NI 655X for  
external triggers, or output terminals  
from the NI 655X for events.  
2, 4, 6, 10, 12, GND  
14, 16, 18, 20,  
22, 24, 28, 32,  
34, 36, 38, 40,  
42, 44, 46, 48,  
50, 54, 56, 58,  
62, 66  
Ground reference for signals.  
1, 3, 5, 7, 8, 9, RESERVED N/A  
These terminals are reserved for future  
use. Do not connect to these pins.  
11, 35, 37, 39,  
41, 43, 45, 52,  
60  
NI 656X Front Panels and Connectors  
The NI 656X front panels contain four connectors—three SMB jacks  
(CLK IN, PFI 0, and CLK OUT) and one 73-pin 12x Infiniband connector  
(DIGITAL DATA & CONTROL, or DDC).  
Figure 10 shows the NI 6561 front panels and pinout, which are identical to  
those of the NI 6562. Signals marked with an asterisk represent the  
complementary terminal for the differential signal of the same name. The  
DDC signals are described in Table 6. The SMB connectors are the same as  
those described in Table 7, and the LEDs are the same as those described in  
Tables 8 and 9.  
Note If you are designing a custom cabling solution with connector  
(779157-01) and cable (192744-01), the NI 656X pinout is reversed  
at the end connector. For example, the signal shown on pin 1 shown  
in the previous figure would map to pin 73 at the end connector.  
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GND  
GND  
GND  
GND  
1
4
PFI_1*  
PFI_2*  
PFI_1  
PFI_2  
PFI_3  
3
2
6
9
5
8
7
PFI_3* / GND  
RESERVED(NC)  
DIO 0*  
10  
RESERVED(NC)  
GND  
12 11  
13  
NI PXI-6561  
100 MHz LVDS DIO  
DIO 0  
15 14  
16  
ACCESS  
ACTIVE  
GND  
CLK  
IN  
DIO 1*  
DIO 1  
18 17  
19  
GND  
DIO 2*  
21 20  
22  
DIO 2  
PFI 0  
GND  
DIO 3*  
24 23  
25  
DIO 3  
CLK  
OUT  
GND  
DIO 4*  
27 26  
28  
DIO 4  
GND  
DIO 5*  
30 29  
31  
DIO 5  
GND  
DIO 6*  
33 32  
34  
DIO 6  
GND  
DIO 7*  
36 35  
37  
DIO 7  
GND  
DIO 8*  
39 38  
40  
DIO 8  
GND  
DIO 9*  
42 41  
43  
DIO 9  
GND  
DIO 10*  
45 44  
46  
DIO 10  
GND  
DIO 11*  
DIO 11  
GND  
48 47  
49  
DIO 12*  
51 50  
52  
DIO 12  
GND  
DIO 13*  
DIO 13  
GND  
54 53  
55  
DIO 14*  
DIO 14  
GND  
57 56  
58  
DIO 15*  
DIO 15  
GND  
60 59  
61  
STROBE*  
DDC CLK OUT LVDS*  
RESERVED(NC)  
DDC CLK OUT LVPECL*  
STROBE  
GND  
63 62  
64  
DDC CLK OUT LVDS  
GND  
66 65  
67  
69 68  
70  
RESERVED(NC)  
GND  
72 71  
73  
DDC CLK OUT LVPECL  
GND  
Figure 10. NI 656X Front Panel Connectors  
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Note If you are designing a custom cabling solution with  
connector (779157-01) and cable (192744-01), the NI665X pinout  
is reversed at the end connector. For example, the signal shown on  
pin 1 shown in the previous figure would map to pin 73 at the end  
connector.  
Table 6. NI 656X DDC Connector Pins  
Signal  
Type  
Pins  
Signal Name  
Signal Description  
65  
66  
71  
72  
62  
DDC CLK OUT Control Positive terminal for the exported  
LVDS Sample clock.  
DDC CLK OUT Control Complementary terminal for the  
LVDS* LVDS exported Sample clock.  
DDC CLK OUT Control Positive terminal for the LVPECL  
LVPECL exported Sample clock.  
DDC CLK OUT Control Complementary terminal for the  
LVPECL*  
LVPECL exported Sample clock.  
STROBE  
Control Positive external Sample clock  
source which can be used for  
dynamic acquisition.  
63  
STROBE*  
Control Complementary external Sample  
clock source which can be used for  
dynamic acquisition.  
14, 17, 20, 23, DIO <0..15>  
26, 29, 32, 35,  
Data  
Bidirectional digital I/O data  
channels 0 through 15.  
38, 41, 44, 47,  
50, 53, 56, 59  
15, 18, 21, 24, DIO <0..15>*  
27, 30, 33, 36,  
39, 42, 45, 48,  
Data  
Complementary bidirectional  
digital I/O data channels  
0 through 15.  
51, 54, 57, 60  
2, 5, 8  
PFI<1..3>  
Control Positive input terminals to the  
NI 656X for external triggers, or  
output terminals from the NI 656X  
for events.  
3, 6, 9  
PFI<1..3>*  
Control Complementary input terminals to  
the NI 656X for external triggers,  
or output terminals for the  
NI 656X for events.  
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Table 6. NI 656X DDC Connector Pins (Continued)  
Signal  
Type  
Pins  
Signal Name  
Signal Description  
1, 4, 7, 10, 13, GND  
16, 19, 22, 25,  
28, 31, 34, 37,  
40, 43, 46, 49,  
52, 55, 58  
Ground Ground reference for signals.  
11, 12, 68, 69 RESERVED  
N/A  
These terminals are reserved for  
future use. Do not connect to  
these pins.  
Table 7. NI 654X/655X/656X SMB Connectors  
Signal  
Name  
Signal  
Type  
Connector  
Description  
CLK IN  
Reference/  
Clock Input  
Control  
Terminal for the external Reference  
clock used for the PLL or for the  
external Sample clock used for  
pattern generation and/or  
acquisition.  
PFI 0  
Programmable Control  
Function  
Interface  
Input terminal to the device for  
external triggers, or output terminal  
from the device for events.  
(PFI) 0  
CLK OUT  
Reference/  
Clock Output  
Control  
Terminal for the exported PLL  
Reference clock or the exported  
Sample clock.  
Tables 8 and 9 describe the different conditions indicated by the two  
NI PXI LEDs.  
Table 8. ACTIVE LED Indicators  
Color  
Indications  
Off  
Device not armed, not triggered, or experiencing an error.  
Amber  
Device armed and awaiting Start trigger. If performing a  
dynamic acquisition operation, the device may be acquiring  
pretrigger samples.  
Green  
Red  
Device received Start trigger.  
Error condition.  
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Table 9. ACCESS LED Indicators  
Color  
Indications  
Off  
Device not ready.  
Amber  
Green  
Red  
Device being accessed by software.  
Device ready to be programmed.  
Running the niHSDIO Self Test VI or calling  
niHSDIO_self_testproduced a failure.  
Appendix B: Troubleshooting  
Device Front Panel ACCESS LED on PXI Module is Off  
When PXI Chassis is On  
If the ACCESS LED is not lit after you power on the PXI chassis, a problem  
may exist with the PXI power rails, a hardware device, or the LED.  
Note The LEDs may not light until the device has been configured  
in MAX. Before troubleshooting this issue, verify that the device  
appears in MAX.  
Troubleshoot this issue by completing the following steps:  
1. Power off your PXI chassis.  
2. Disconnect any signals from the PXI module front panel.  
3. Remove the PXI module and inspect for signs of damage. Do not reinstall  
a damaged device.  
4. Reinstall the PXI module using the procedure described in  
step 5. Installing the Hardware.  
5. Power on your PXI chassis.  
6. Verify the device appears in MAX.  
7. Reset the device in MAX and perform a self-test. Refer to  
step 6. Configuring and Testing in MAX for information on performing  
device resets and self-tests in MAX.  
8. If the ACCESS LED still fails to light, contact NI support at  
ni.com/support.  
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Device Does Not Appear in MAX  
Complete the following steps if the NI device does not appear in MAX:  
1. In the MAX Configuration pane, click Devices and Interfaces to expand  
the category.  
2. Click NI-DAQmx Devices and press <F5> to refresh the list of installed  
devices.  
3. If the device is still not listed, power down the system, ensure the device  
is correctly installed, and restart.  
4. If the device still does not appear under NI-DAQmx Devices, contact  
NI support at ni.com/support.  
Device Failed the Self-Test  
The MAX self-test performs a brief test of device resources. If the device  
does not pass the self-test, complete the following steps:  
1. Reboot your system.  
2. Launch MAX and perform the self-test again. If the device still fails the  
self-test, proceed to step 3.  
3. Uninstall and reinstall NI-HSDIO.  
4. If the device still fails the self-test, contact NI support at ni.com/  
support.  
I Received a Thermal Shutdown Error  
I received the kErrorDeviceShutDownDueToHighTemperror, and my  
device shut down. What should I do next?  
To re-enable your device after a thermal shutdown, you must perform a hard  
reset, in which the device integrated circuits (ICs) are reloaded. To re-enable  
your device after thermal shutdown, complete the following steps:  
1. Power down the computer or chassis that contains the device.  
2. Review the procedure in step 5. Installing the Hardware and make any  
necessary adjustments to ensure that your device is effectively cooled.  
3. Call niHSDIO_ResetDevice(NI-HSDIO Reset Device VI) or perform  
a device reset in MAX. For more information on performing a device  
reset in MAX, refer to step 6. Configuring and Testing in MAX.  
The thermal shutdown error continues to be reported until the device has  
been successfully reset.  
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Performance Issues Using MXI Connection  
When using a MXI connection to control the PXI chassis, the MXI  
Optimization Application must be run prior to using the NI device.  
By default, this application runs automatically when Windows starts. Use of  
a MXI connection without running this application may result in a time  
exceededor internal software error, or an initialization, timeout, or  
performance issue when using the NI device.  
If you are experiencing errors and are uncertain whether the MXI  
Optimization Application ran, navigate to Start»Programs»National  
Instruments MXI and select MXI Optimization to run the application.  
If the application is not installed, refer to the software CD included with the  
MXI kit to install the software. After installation, you may be required to  
reboot the computer before using the MXI Optimization Application.  
If you continue to have initialization or performance issues, refer to the  
MXI documentation at Start»Programs»National Instruments MXI, or  
visit NI Technical Support at ni.com/support.  
Technical Support Resources  
NI Web Support  
The National Instruments Web site is your complete resource for technical  
support. At ni.com/supportyou have access to everything from  
troubleshooting and application development self-help resources to email  
and phone assistance from NI Application Engineers.  
A Declaration of Conformity (DoC) is our claim of compliance with the  
Council of the European Communities using the manufacturer’s declaration  
of conformity. This system affords the user protection for electronic  
compatibility (EMC) and product safety. You can obtain the DoC for your  
product by visiting ni.com/certification. If your product supports  
calibration, you can obtain the calibration certificate for your product at  
ni.com/calibration.  
Worldwide Support  
National Instruments corporate headquarters is located at  
11500 North Mopac Expressway, Austin, Texas, 78759-3504.  
National Instruments also has offices located around the world to help  
address your support needs. For telephone support in the United States, create  
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your service request at ni.com/supportand follow the calling instructions  
or dial 512 795 8248. For telephone support outside the United States,  
contact your local branch office:  
Australia 1800 300 800, Austria 43 0 662 45 79 90 0,  
Belgium 32 0 2 757 00 20, Brazil 55 11 3262 3599,  
Canada (Calgary) 403 274 9391, Canada (Ottawa) 613 233 5949,  
Canada (Québec) 450 510 3055, Canada (Toronto) 905 785 0085,  
Canada (Vancouver) 604 685 7530, China 86 21 6555 7838,  
Czech Republic 420 224 235 774, Denmark 45 45 76 26 00,  
Finland 385 0 9 725 725 11, France 33 0 1 48 14 24 24,  
Germany 49 0 89 741 31 30, India 91 80 51190000, Israel 972 0 3 6393737,  
Italy 39 02 413091, Japan 81 3 5472 2970, Korea 82 02 3451 3400,  
Malaysia 603 9131 0918, Mexico 01 800 010 0793,  
Netherlands 31 0 348 433 466, New Zealand 0800 553 322,  
Norway 47 0 66 90 76 60, Poland 48 22 3390150,  
Portugal 351 210 311 210, Russia 7 095 783 68 51,  
Singapore 65 6226 5886, Slovenia 386 3 425 4200,  
South Africa 27 0 11 805 8197, Spain 34 91 640 0085,  
Sweden 46 0 8 587 895 00, Switzerland 41 56 200 51 51,  
Taiwan 886 2 2528 7227, Thailand 662 992 7519,  
United Kingdom 44 0 1635 523545  
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National Instruments, NI, ni.com, and LabVIEW are trademarks of National Instruments Corporation. Refer to the Terms of Use section  
on ni.com/legalfor more information about National Instruments trademarks. Other product and company names mentioned  
herein are trademarks or trade names of their respective companies. For patents covering National Instruments products, refer to the  
appropriate location: Help»Patents in your software, the patents.txtfile on your CD, or ni.com/patents.  
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