National Instruments VXI, VXI-1501 User Manual

VXI

VXI-1501 User Manual

VXI-1501 User Manual

January 2000 Editio n

Part Number 322452A-0 1

Worldwide Techn ic al Su pp or t an d Product Information

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For further support information, see the Tech nical Support Resource s appendix. To comment on the
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Copyright 2000 National Instruments Corporation. All rights reserved.

©

Important Information

Warranty

The VXI-1501 mainframe 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.

XCEPT AS SPECIFIED HEREIN

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ATIONAL INSTRUMENTS MAKES NO WARRANTIES, EXPRESS OR IMPLIED, AND SPECIFICALLY DISCLAIMS ANY

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USTOMER’S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR

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Compliance

FCC/Canada Radio Freq uency Interference Compliance*

Determining FCC Class

The Federal Communications Commission (FCC) has rules to protect wireless communications from interference.
The FCC places digita l el ectronics into two classes. The se classes are known as Class A (for us e in industrial­commercial locat ion s only) or Class B (for use in residenti a l or commercial location s). Depe nding on where it is
operated, this product could be subject to restrictions in the FCC rules. (In Canada , the Depa rt ment of
Communications (DOC), of Industry Canada, regulates wireless interference in much the same way.)

Digital electronics em it weak signals during norma l operation that can affect radio, television, or other wi rel ess
products. By examining the product you purchased, you can determine the FCC Class and therefore which of the two
FCC/DOC Warnings app ly i n the following sections. (Som e products may not be labele d at all for FCC; if so, the
reader should then assume thes e are Class A devi ces.)

FCC Class A products only display a simple warning statement of one paragraph in length regarding interference and
undesired operation. Most of our products are FCC Class A. The FCC rules have restrictions regarding the locations
where FCC Class A products can be operat e d.

FCC Class B products display either a FCC ID code, startin g wit h the letters EXN,
or the FCC Class B compliance mark that appears a s sho w n he re on the right.

Consult the FCC web site

http://www.fcc.gov

FCC/DOC Warnings

This equipment generates and uses radio frequency energy and, if not installed and used in strict accordance with the
instructions in this manual and the CE Mark Decla r a ti on of Conformity**, may cau se i nterference to radio and
television reception. Cl assification requirements are the sam e for t he Fe de ral Communications Commission (FCC)
and the Canadian Department of Communications (DOC).

Changes or modifications not expressly approved by National Instruments could void the user’s authority to operate
the equipment under the FCC Rules.

Class A

Federal Communications Commission

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to
radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in
which case the user will be require d to correct the interference at his own exp ense.

for more information .

Canadian Department of Communications

This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe A respecte to ute s le s exi g e nces du Règlement sur le maté rie l brouilleur du

Canada.

Class B

Federal Communications Commission

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15
of the FCC Rules. These limits are de s igned to provide rea s ona ble protection ag ai ns t harmful interference in a
residential installa tion. This equipment generates, uses and can radiat e radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interfere nc e by one or more of the foll owi ng measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equi pm ent and receiver.

• Connect the equipment into an outlet on a circuit differe n t f rom that to which the rec ei v e r is connected.

• Consult the deal er or an experience d radio/TV technic ian for help.

Canadian Department of Communications

This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe B respecte toutes le s exigences du Règlement sur le matériel brouilleur du

Canada.

European Union - Compliance to EEC Directives

Readers in the EU/EEC /E E A must refer to the Manufactur er's Declaration of Conform i ty (DoC) for information* *
pertaining to the CE Mark compliance scheme. The Manufacturer includes a DoC for most every hardware product
except for those bough t for OE Ms, if al so available from an origi na l manufacturer that also ma rkets in the EU, or
where compliance is not requi re d as for electrically benign apparat us or c ables.

* Certain exemptions may apply in the USA, see FCC Rules §15.103 Exempted devices, and §15.105(c).

Also available in sections of CFR 47.

** The CE Mark De claration of Conformity wi ll contain important supplementary information and instructions

for the user or install e r.

Conventions

The following conventions are used in this manual:
This icon denotes a note, which alerts you to important informatio n.
This icon denotes a caution, which advises you of precautions to take to

avoid injury, data loss, or a system crash.
This icon denotes a warning, which advises you of precautions to take to

avoid being electrically shocked.

italic

monospace

Italic text denotes variab les, emphasis, a cross reference, or an introduction
to a key concept. This font also denotes te xt that is a placeholder for a w ord
or value that you must supply.

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 dri ves, paths, d irectories,
programs, subprograms, subroutines, device names, functions, operations,
variables, filenames and extensions, and code excerpts.

Contents

Chapter 1
Using the Mainframe

Mainframe Description.................................................................................................. 1 -1

Line Voltage and Input Power.......................................................................................1-1

Air Flow.........................................................................................................................1-2

Variable Speed Fan.................................................... ........................................ ...... ......1-3

Rear Panel Auxiliary Connector....................................................................................1-4

Remote Standby Switch.................................................................................................1-6

Installing the Power Line Fuse ......................................................................................1-8

Power Cords.................................................... ........................................ ..... ..................1-9

Safety Grounding Information.......................................................... ...... .......................1-10

Grounding Procedure.......................................................................................1-10

Appendix A
VXI-1501 Specifications

Appendix B
Technical Support Resources

Index
Figures

Figure 1-1. Minimum Airflow Available Per Slot ..................................................1-2

Figure 1-2. Forcing the Fan to High Speed..............................................................1-3

Figure 1-3. Remote Standby Switch Wiring............................................................1-6

Figure 1-4. Location of R93 Surface Mount Resistor..............................................1 -7

Figure 1-5. Replacing the Power Line Fuse ............................................................1-8

Figure 1-6. Grounding Connection..........................................................................1-10

Figure 1-7. Grounding Screw, Toothed Washers.....................................................1-10

Tables

Table 1-1. Connector Pinouts and Description.......................................................1-4

Table 1-2. Rating Requirements for Power Cords..................................................1-9

National Instruments Cor pora tion vii VXI-1501 User Manual

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Using the Mainframe

Mainframe Description

The VXI-1501 mainframe is designed in full compliance with the VXIbus
specification (Rev. 2.0). The mainframe contains 13 slots for plug-in
modules and can be rack mounted in either the forward or reverse position.
Other features of the VXI-1501 mainframe include the following:

• Power supply reliability

• Solid state automatic bus grant sensing to bypass empty slots
(no backplane jumpers required)

• Variable speed fan cooling

• Rear mounted 25-pin D connector for auxiliary power supply
monitoring

• Easy replacement of major components—most can be replaced from
the rear of the mainframe, even while the mainframe is mounted in
a rack

• Seven standard VXIbus power supply voltages—all overvoltage,
overcurrent, and temperature protected

• Maximum usable power (total power supply output power before
thermal protection shutdown): 1690 W @ 25 °C, 1690 W @ 40 °C,
1488 W @ 55 °C

1

Line Voltage and Input Power

The VXI-1501 mainframe includes a power supply that automatically
adjusts for standard nominal line voltages of 100/120 VAC and
220/240 VAC, and nominal power line frequencies of 50 Hz and 60 Hz.
The power supply has a power factor corrected input section and thus can
be powered from any nominal line input within the range of 100 VAC to
240 VAC. The power supply can also be powered from a 400 Hz AC line
frequency or DC power line voltages. Refer to Appendix A,

Specifications

Warning

grounding information when power line frequencies exceed 66 Hz.

National Instruments Cor pora tion 1-1 VXI-1501 User Manual

©

Refer to the

, for complete input power specifications.

Safety Grounding Information

section in this chapter for complete

VXI-1501

Chapter 1 Using the Mainframe

Air Flow

The air flow into the plug-in module slots in the VXI-1501 mainframe is
significant. The mainframe supplies each of the 13 slots with eno ugh air to
cool 60 W while maintaining only a 10 °C rise across a typically dense
module. Up to 75 W per slot may be dissipated if a 15 °C rise is acceptable
across a typically dense module. The graph of F igure 1-1 shows the air flow
volume (liters/second) versus change in pressure across the module
(mm H

O) for the mainframe.

2

P Across

Module

(mm H O)

2

Figure 1-1.

2.0

1.0

Minimum Airflow Available Per Slot

Minimum Airflow per Slot

High Fan Speed

123

Airflow (liters/sec)

5

4

6

The mainframe has a fan chamber with three circulation fans. The speed of
the fans is controlled by the ambient temperature of the air drawn into the
mainframe. Air from the fan chamber is forced into the comp artmentalized
plenum at the bottom of the mainf rame. Although the plenum do es contain
a compartmentalized structure, some air flow is always present in each of
the 13 slots even if one of the three mainframe circulation fans fails to
operate. The air passes through the installed modules and escapes out the
sides and top of the mainframe.

If any plug-in module exceeds 40 W dissipation, you must provide a
minimum of 20 mm (0.8 in.) of clearance above the mainframe.

A fourth fan provides cooling for the power supply. This fan is mounted on
the side of the mainframe.

VXI-1501 User Manual 1-2 www.ni.com

Chapter 1 Using the Mainf r am e

Caution

When installing the mainframe in your system, ensure that the air inlets and
outlets are not obstructed. This prevents damage to the mainframe and installed modules
due to overheating. Clean the air filter regularly.

Variable Speed Fan

Normally, the speed of the four internal circulation fans is determined by
the ambient temperature of the air drawn into the mainframe. One fan cools
the power supply module and th ree fans cool the VXI modules insert ed into
the mainframe. You can override the temperature-controlled speed of the
fans by changing the position of the Fan Speed Control Switc h on the r ear
of the mainframe to High. This forces all four fans to remain at full speed
all of the time. The two fan modes are:

• Variable Speed Mode (factory default): Quiet operation (~ 75%
airflow) at <30 °C ambient temperature; high speed operation at
>40 °C ambient temperature.

• High Speed Mode (switch selectable): Full airflow at all times.

Figure 1-2.

National Instruments Cor pora tion 1-3 VXI-1501 User Manual

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Forcing the Fan to High Speed

Chapter 1 Using the Mainframe

Rear Panel Auxiliary Connector

A 25-pin “D” connector is provided on the rear panel of the mainframe to
allow monitoring of power supply voltages and other functions. The
pinouts for this c onnector are shown in Table 1-1.

Table 1-1.

Pin # Function Description

1 +5 VM +5 V for voltage mo ni toring (2.4 mA max)
2 –12 VM –12 V for voltage monitoring (2.4 mA max)
3 –24 VM –24 V for voltage monitoring (2.4 mA max)
4 –2 VM –2 V for voltage monitoring (2.4 mA max)
5 REM STDBY Remote power switch
6 +5 V +5 V output for charging batt eri es, running external TTL

7 +12 V +12 V output for charging batt eries, running external TTL

8 +5 V STDBY Input for +5 V standby current (for example, from external

9 GND Chassis ground

10 SYSRESET* Backplane SYSRESET* signal (input or output). If you use this

11 EXHAUST_TEMP An analog output sig nal proportional to the power supply

12 N/C Not used

Connector Pinouts and Description

circuits, etc. 1 A max

circuits, relays, etc. 1 A max

battery). Max 1 A combined t otal (pins 8 and 21).

pin, be careful not to violate backplane electrical specifications
(that is, keep extender cable as short as possible).

exhaust temper at ure.

13 N/C Not used
14 +12 VM +12 V for voltage monitoring (2.4 m A ma x)
15 +24 VM +24 V for voltage monitoring (2.4 m A ma x)
16 –5.2 VM –5.2 V for voltage monitoring (2.4 mA max)
17 GND C ha ssis ground
18 REM SW Remote pow er switch return
19 GND C ha ssis ground
20 GND C ha ssis ground

VXI-1501 User Manual 1-4 www.ni.com

Chapter 1 Using the Mainf r am e

Table 1-1.

Pin # Function Description

21 +5 V STDBY Input for +5 V standby current (for example, from external

22 GND Cha ssis gro und

23 AC FAIL* Backplane AC FAIL* signal (input or output). If you use this pin,

24 GND Cha ssis gro und

25 N/C Not used

Connector Pinouts an d Description (Continue d)

batter). Max 1 A combined total (pins 8 and 21).

be careful no t t o vi ol ate b ac kpl ane el ec tri cal sp ecifications ( that
is, keep extender cable as short as possible).

+5 V The +5 V output lets you power external

TTL circuitry if required. The maximum
current allowed from this supply is 1.0 A.

+12 V The +12 V output lets you po wer a battery

charging circuit to provide a source for
the +5 V STDBY input. The maximum
current allowed from this supply is 1.0 A.

+5 V STDBY This provides an input to the mainframe

backplane for a +5 V standby power
source. This may be from a separate
battery or power supply. The maximum
current input allowed is 1.0 A. This
means that all standby circuitry in all
modules mounted in the mainframe can
draw a total of 1. 0 A when active.

SYSRESET* This pin provides an extension of the

backplane SYSRESET* signal. It can be
used to monitor for SYSRESET* or to
send SYSRESET* to the backplane.
Shorting this line to ground inputs a
SYSRESET* signal to the system. If you
use any extensi on cable out of th e 25-pin
D connector on the mainframe rear pane l,
make certain that you do not viol ate VXI
backplane electrical specifications (that
is, keep the cable as short as possible or
buffer the signal, etc.).

National Instruments Cor pora tion 1-5 VXI-1501 User Manual

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Chapter 1 Using the Mainframe

ACFAIL* This pin lets you monitor the ACFAIL*

EXHAUST_TEMP This pin provides an analog output that is

Remote Standby Switch

signal from the backplane. Because this
pin is connected directly to the backplane,
do not violate VXI backplane electrical
specifications (that is, keep the cable as
short as possible or buffer the signal,
etc.).

proportional to the power supply exhaust
temperature. Using this circuit, you can
monitor the actual temperature of the
power supply exhaust temperature to
receive a warning signal that the
mainframe is running under abnormal
conditions. This output provides 0 VDC
at 0 °C, with a rise of 10 mV per degree
centigrade when referenced to chassis
ground.

The remote standby switch connection lets you turn the mainframe ON or
put it in STANDBY mode remotely. These two connections are wired in
parallel with the front panel ON/STANDBY switch. The front panel switch
must be in STANDBY position for the remote switch to function corr ectly.

Figure 1-3.

VXI-1501 User Manual 1-6 www.ni.com

Remote Standby Switch Wiri ng

Chapter 1 Using the Mainf r am e

If you want to disable the front panel switch completely, you can remove
R93 (a surface mount, 0 Ohm resistor) on the back of the backplane PCA.
Figure 1-4 shows the location of this resistor. Once R93 is removed, the
only way to control power is through a switch connected to pins 5 and 18
of the 25-pin D connector on th e rear panel of the main frame. To access the
interface board, remove the power supply.

PC Backplane Assembly

R93

Located Under

the Connector

Figure 1-4.

National Instruments Cor pora tion 1-7 VXI-1501 User Manual

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Location of R93 Surface Mount Resistor

Chapter 1 Using the Mainframe

Installing the Power Line Fuse

The mainframe is shipped with a 15 A fast blow (15 AF) fuse already
installed. This fuse is suitable for all line voltages. Figure 1-5 shows how
to replace the fuse if necessary.

Figure 1-5.

Warning

type and current rating.

VXI-1501 User Manual 1-8 www.ni.com

For continued protection against f ire hazard, replace fuse only with fuse of same

Replacing the Power Line Fuse

Power Cords

Chapter 1 Using the Mainf r am e

Table 1-2 shows the power cord rating requirements.

Table 1-2.

Rating Requirements for Power Cords

Country Volts Rated Amps

U.K. 250 VAC 10 A

Australia 250 VAC 10 A

Europe 250 VAC 10 A

U.S./Canada* 125 VAC 13 A

Switzerland 250 VAC 10 A

Denmark 250 VAC 10 A

Japan 125 VAC 15 A

* CSA Certification incl udes only this power cord.

AC mains power supply cords used wit h the VXI-1501 must meet the requirem ents

Note

of ANSI/UL817 for use in th e United Stat es, CSA C22.2 21 and 49 for use in C anada, and
IEC 227 or 245 for use in the European Union. AC mains power supply cords used with
the VXI-1501 in other countries must be approved by the authority having jurisdiction in
that country. Power cords with high power ratings are av ailable from National Instruments.
Make certain that any replacement cord can handle the indicated loads.

Warning

For protection from electric shock hazard, power cord ground must not be
defeated. The front power switch on this instrument does not disconnect all power from
internal circuits. In case of emergency, the operator may need to disconnect the power to
this mainframe. Do not block the operator’s access to the power cord, or (if installed in a
rack) to the circuit breaker that supplies power to the mainframe.

If a remote standby switch is connected to the mainframe by way of the rear panel 25-pin
Sub-D connector , the operator may not be able to t urn of f this uni t by usi ng the front panel
switch. Notify the operator of the location of the disconnect device (either the power cord
or a circuit breaker) for this mainframe.

National Instruments Cor pora tion 1-9 VXI-1501 User Manual

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Chapter 1 Using the Mainframe

Safety Grounding Information

Warning

than 66 Hz, connect the chassis ground terminal to permanent earth ground.

For protection from electrical shock when operating at mains frequencies greater

Grounding Procedure

Connect a 16 AWG (1.3 mm or larger) wire to the PEM nut shown
in Figure 1-6. The wire must be green with a yellow stripe or bare
(no insulation). Use an M4 × 10 screw, grounding lug, and toothed washers
(or toothed lug) as shown in Figure 1-7. Securely attach the other end of the
wire to a permanent earth ground using toothed washers or a toothed lug.

Figure 1-6.

Figure 1-7.

VXI-1501 User Manual 1-10 www.ni.com

Grounding Connection

Grounding Scre w, Toothed Washers

VXI-1501 Specifications

The VXI-1501 mainframes are 100% compatible with VXIbus
specification revision 2.0.

Overall Mainframe Size

Mainframe weight............................... ...22 Kg (48. 5 lbs) with no modu les

A

installed

Module size............................................13 C-Size slots

Mainframes also accept A-Size or
B-Size modules with the
appropriate adapters

Input power

50–60 Hz input power ............Automatic voltage ranging

Nominal range .........................100–240 VAC ±10%

Nominal frequency range ........50–60 Hz ±10%

400 Hz input power

Nominal voltage range.............100–120 VAC ±10%

Nominal frequency..................400 Hz ±10%

DC input power

Input voltage range..................100 VDC min; 370 VDC max

National Instruments Cor pora tion A-1 VXI-1501 User Manual

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Appendix A VXI-1501 Specifications

General power supply.............................Power factor corrected

Fuse

Power Supply Outputs

Power switch ........................ ...........On/Standby with lighted indicator

in front
Rear panel connection allows
remote operation

Inrush current...................................40 A max

Designed to meet EN-60555-2

Socket for detachable line cord.......IEC 320 “HOT”

Chassis ground tap on rear panel.....M4 × 0.7 threaded insert

Maximum

Voltage

Current

Fuse

100 VAC 15 A 15 AF
120 VAC 12 A 15 AF

220–240 VAC 8 A 15 AF

DC
Output
Voltage

Peak DC Output

Current (IMP*)

40 °C 55 °C

P–P Dyna mic

Current

(IMD**)

Current

Limit (supply

shuts down)

+5 V 65 A 60 A 9.0 A 70–80 A
+12 V 14 A 12 A 2.5 A 14–18 A
–12 V 14 A 12 A 2.5 A 14–18 A
+24 V 14 A 12 A 5.0 A 15–19 A
–24 V 12 A 10 A 5.0 A 12–16 A

–5.2 V 65 A 60 A 8.5 A 70–80 A

–2 V 35 A 30 A 4.5 A 35–41 A

* IMP = Rated mainframe peak DC output current as defined by the VXIbus Specification.
** IMD = Rated mainframe peak-to-peak dyna mi c current as defined in the VXIbus
Specification by a curre nt vs. frequency curve.

VXI-1501 User Manual A-2 www.ni.com

Appendix A VXI-1501 Specifications

VXI Ripple/Noise

DC Output

Voltage

1

Allowed

Variation

Max. DC Load

Ripple/Noise

Max. Induced

Ripple/Noise

+5 V +0.25/–0.125 50 mV 50 mV
+12 V +0.06/–0.36 50 mV 50 mV
–12 V –0.60/+0.36 50 mV 50 mV
+24 V +1.2/–0.72 150 mV 150 mV
–24 V –1.2/+0.72 150 mV 150 mV

–5.2 V –0.26/+0.156 50 mV 50 mV

–2 V –0.10/+0.10 50 mV 50 mV

Maximum Power Output
Uncertainty in shutdown is due to variable loading. Heavy loading on
+5 V, –2 V, and –5.2 V will cause shutdown at the lower edge of the band.
Heavy loading of the +12 V, –12 V, +24 V, or –24 V will cause shutdown
at the higher edge of the band. Low line voltage (90 VAC) will cause
shutdown at the lower edge of the band.

Humidity ................................................10-90% RH noncondensing

Temperature range

Nonoperating .................................. –20 °C to +70 °C

Operating ........................................ 0 °C to 50 °C

Shock .....................................................30 g, 11 ms, half sine

3 shocks per face

Random vibration

Nonoperating ..................................5-500 Hz, 2.46 g

Operating ........................................5-500 Hz, 0.31 g

1

Per VXI Specification rev. 1.4.

National Instruments Cor pora tion A-3 VXI-1501 User Manual

©

rms
rms

Appendix A VXI-1501 Specifications

Cooling Provided

P Across

Module

(mm H O)

2

2.0

1.0

Minimum Airflow per Slot

High Fan Speed

123

Airflow (liters/sec)

5

4

6

Fan set to “Variable”.......................Quiet operation (approximately

75% airflow) at <30 °C ambient
temperature and high speed
operation at >40 °C ambient

temperature

Fan set to “High”.............................Full airflow all the time

For modules with typical density ....10 °C rise at 60 W per slot

15 °C rise at 75 W per slot

Acoustical noise

Low fan speed..................................48 dBA sound pressure at

bystander position. Lpa = 48 dB

fiktiver Arbeitsplatz, normalier

Betrieb, nach DIN 45635 T. 1

High fan speed.................................56 dBA sound pressure at

bystander position. Lpa = 56 dB

fiktiver Arbeitsplatz, normalier

Betrieb, nach DIN 45635 T. 1

Safety......................................................Meets UL 3111-1, CAN/CSA

C22.2 #1010.1, IEC 610 10-1, and

EN 61010-1

VXI-1501 User Manual A-4 www.ni.com

Technical Support Resources

This appendix describes the comprehensive resources available to you in
the Technical Support section of the National Instruments Web site and
provides technical support telephone numbers for you to use if you have
trouble connecting to our Web site or if you do not have internet access.

NI Web Support

To provide you with immediate answers and solutions 24 hours a day,
365 days a year, National Instruments maintains ex tensive on line technical
support resources. They are available to you at no cost, are updated daily,
and can be found in the Technical Support section of our Web site at

www.ni.com/support

Online Problem-Solving and Diagnostic Resources

•

KnowledgeBase

frequently asked questions (FAQs) an d their co rresponding ans wers or
solutions, including special sections devoted to our newest products.
The database is u pdated daily in response to new customer e xperiences
and feedback.

•

Troubleshootin g Wiza rds

common problems and an swer question s about our entire product line.
Wizards include screen shots that illustrate the steps being described
and provide detailed information ranging from simple getting started
instructions to advanced topics.

•

Product Manuals

editions of National Instruments hardware and software product
manuals.

•

Hardware Reference Database

brief hardware descriptions , mechanical drawin gs, and helpful images
of jumper settings and connector pinouts.

•

Application Notes

addressing specific topics such as creating and calling DLLs,
developing your own instrument driver software, and porting
applications between platforms and operating systems.

—A searchable database containing thousands of

—Step-by-step guides lead you through

—A comprehensive, searchable library of the latest

—A searchable database containing

—A library with more than 100 short papers

B

National Instruments Cor pora tion B-1 VXI-1501 User Manual

©

Appendix B Technical Suppo rt R es ou rces

Software-Related Resources

•

Instrument Driver Network

drivers for cont r ol of s t and alone i n st ru ments vi a GPIB, VXI, or serial
interfaces. You also can submit a request for a particular instrument
driver if it does not already appear in the library.

•

Example Programs Database

non-shipping example programs for National Instruments
programming environments. You can use them to complement the
example programs that are already included with National I nstruments
products.

•

Software Library

software, links to the latest versions of driver software for National
Instruments hardware products, and utili ty routines.

Worldwide Support

National Instruments has offices located around the globe. Many branch
offices maintain a Web site to provide informatio n on local services. You
can access these Web sites from

—A library with hu ndreds of ins trument

—A database with numerous,

—A library with updates and patches to application

www.ni.com/worldwide

If you have trouble connecting to our Web site, please contact your local
National Instruments office or the source from which you purchased your
National Instruments product( s) to obtain su pport.

For telephone support in the United States, dial 512 795 8248. For
telephone support outside the United States, contact your local branch
office:

Australia 03 9879 5166, Austria 0662 45 79 90 0, Belgium 02 757 00 20,
Brazil 011 284 5011, Canada (Calgary) 403 274 9391,
Canada (Ontario) 905 785 0085, Canada (Québec) 514 6 94 8521,
China 0755 3904939, Denmark 4 5 76 26 00, Finland 09 725 725 11,
France 01 48 14 24 24, Germany 089 741 31 30, Greece 30 1 42 9 6 427,
Hong Kong 2645 3186, India 91805275406, Israel 03 6120092,
Italy 02 413091, Japan 03 5472 2970, Korea 02 596 7456,
Mexico (D.F.) 5 280 7625, Mexico (Monterrey) 8 357 7695,
Netherlands 0348 433466, New Zealand 09 914 0488,
Norway 32 27 73 00, Poland 0 22 528 94 06, Portugal 351 1 726 9011,
Singapore 2265886, Spain 91 640 0085, Sweden 08 587 895 00,
Switzerland 056 200 51 51, Taiwan 02 2528 7227,
United Kingdom 01635 523545

VXI-1501 User Manual B-2 www.ni.com

Index

A

AC mains power supply cords

requirements, 1-9
acoustical noise, A-4
air flow, 1-2

minimum airflow available per slot

(figure), 1-2

obstructions (caution), 1-3

C

connectors

pinouts (table, figure), 1-4

rear panel auxiliary connector, 1-4
conventions used in manual,
cooling provided, A-4

vi

D

disabling the front panel switch, 1-7

F

fan, 1-3

forcing to high speed (figure), 1-3

variable speed, 1-3
front panel switch

disabling, 1-7
fuse, A-2

G

general power supply, A-2
grounding procedure (figures), 1-10

I

input power, 1-1, A-1

L

line voltage, 1-1

M

mainframe

description, 1-1
size, A-1
using, 1-1
weight, A-1

N

National Instruments Web support, B-1

O

online problem-solving and diagnostic

resources, B-1

P

pinouts (table, figure), 1-4
power line fuse

installing, 1-8
replacing (figure, caution), 1-8

power supply

AC mains power supply cord

requirements, 1-9

power supply outputs, A-2

H

humidity, A-3

National Instrument s Corporation I-1 VXI-1501 User Manual

©

Index

R

R93 surface mount resistor

location (figure), 1-7
random vibration, A-3
remote standby switch, 1-6

wiring (figure), 1-6

S

shock, A-3
software-related resources, B-2
specifications, A-1

acoustical noise, A-4

cooling provided, A-4

fuse, A-2

general power supply, A-2

humidity, A-3

input power, A-1

mainframe weight, A-1

power supply ou tputs, A-2

random vibration, A-3

shock, A-3

temperature range, A-3

VXI ripple/noise, A-3
standby mode, 1-6
switch

front panel, dis abling, 1-7

T

technical support resources, B-1
telephone support, B-2
temperature range, A-3

V

variable speed fan, 1-3
VXI ripple/noise, A-3
VXI-1501

air flow, 1-2
connectors

pinouts (table, figure), 1-4
forcing fan to high speed (figure), 1-3
grounding procedure (figures), 1-10

grounding connection, 1 -10

grounding screw, toothed

washers, 1-10
input power, 1-1, A-1
line voltage, 1-1
mainframe

size, A-1
using, and description of, 1-1

weight, A-1
remote standby switch, 1-6
specifications, A-1
variable speed fan, 1-3

W

Web support from National Instruments

online problem-solving and diagnostic

resources, B-1

software-related resources, B-2

worldwide technical support, B-2

VXI-1501 User Manual I-2 www.ni.com