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Limited Warranty
The VXIpc-486 Model 200 Series embedded computers and accessories are 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 manual 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
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Warning Regarding Medical and Clinical Use
of National Instruments Products
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FCC/DOC Radio Frequency Interference Compliance
This equipment generates and uses radio frequency energy and, if not installed and used in strict accordance with the
instructions in this manual, may cause interference to radio and television reception. This equipment has been tested
and found to comply with the following two regulatory agencies:
Federal Communications Commission
This device complies with Part 15 of the Federal Communications Commission (FCC) Rules for a Class A digital
device. Operation is subject to the following two conditions:
1.This device may not cause harmful interference in commercial environments.
2.This device must accept any interference received, including interference that may cause undesired operation.
Canadian Department of Communications
This device complies with the limits for radio noise emissions from digital apparatus set out in the Radio
Interference Regulations of the Canadian Department of Communications (DOC).
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils
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communications du Canada.
Instructions to Users
These regulations are designed to provide reasonable protection against harmful interference from the equipment to
radio reception in commercial areas. Operation of this equipment in a residential area is likely to cause harmful
interference, in which case the user will be required to correct the interference at his own expense.
There is no guarantee that interference will not occur in a particular installation. However, the chances of
interference are much less if the equipment is installed and used according to this instruction manual.
If the equipment does cause interference to radio or television reception, which can be determined by turning the
equipment on and off, one or more of the following suggestions may reduce or eliminate the problem.
•Operate the equipment and the receiver on different branches of your AC electrical system.
•Move the equipment away from the receiver with which it is interfering.
•Reorient or relocate the receiver’s antenna.
•Be sure that the equipment is plugged into a grounded outlet and that the grounding has not been defeated with
a cheater plug.
Notice to user: Changes or modifications not expressly approved by National Instruments could void the user’s
authority to operate the equipment under the FCC Rules.
If necessary, consult National Instruments or an experienced radio/television technician for additional suggestions.
The following booklet prepared by the FCC may also be helpful: How to Identify and Resolve Radio-TVInterference Problems. This booklet is available from the U.S. Government Printing Office, Washington, DC
20402, Stock Number 004-000-00345-4.
Contents
About This Manual............................................................................................................xiii
How to Use This Documentation Set.............................................................................xiii
Organization of This Manual.........................................................................................xiii
Conventions Used in This Manual.................................................................................xv
Related Documentation..................................................................................................xv
This manual contains instructions for installing and configuring the National Instruments
VXIpc-486 Model 200 Series embedded computer and the NI-VXI bus interface software
for Microsoft Windows. The Model 200 Series consists of the VXIpc-486 Models 200 and 240
computers.
How to Use This Documentation Set
We suggest that you begin by reading this manual to guide you through the installation and
configuration of the hardware and software. The software configuration requires that you first
complete the installation and configuration of the hardware.
When you are familiar with the material in this manual, you can begin to use the NI-VXI
Software Reference Manual for C. Chapter 1, Introduction to VXI, and Chapter 2, Introduction
to the NI-VXI Functions, present the concepts of VXI and prepare you for detailed explanations
of the NI-VXI functions. Study the descriptions of each function given in Chapters 3 through 13
to fully understand the purpose and syntax of each function. Use the interactive utilities
described in the NI-VXI DOS Utilities Reference Manual and the NI-VXI Text Utilities ReferenceManual to learn more about the capabilities of the NI-VXI software.
Use the
and using the NI-488.2 GPIB Talker/Listener/Controller software. Because the GPIB port on the
VXIpc-486 is compatible with the National Instruments AT-GPIB plug-in board for ISA
computers, we have included manuals entitled Getting Started with Your AT-GPIB and theNI-488.2 Software for MS-DOS and Using Your NI-488.2 Software with Microsoft Windows with
your VXIpc-486 kit. Refer to the VXIpc-486 Documentation Notice: AT-GPIB and MicrosoftWindows Compatibility for more information about using this documentation.
NI-488.2 Software Reference Manual for MS-DOS as a guide for installing, configuring,
Organization of This Manual
This manual is organized as follows:
•Chapter 1, Introduction, describes the VXIpc-486 Model 200 Series kit, lists what you need
to get started, and lists optional equipment and software.
•Chapter 2, VXIpc-486 Configuration and Installation, describes how to configure and install
the VXIpc-486 Model 200 Series embedded computer.
•Chapter 3, BIOS Setup, describes how to set up the basic input/output system (BIOS) for the
information about the VXIpc-486 Model 200 Series computer regarding memory map
locations, I/O address map locations, interrupt lines, and DMA channels.
•Appendix H, Common Questions, answers common questions you may have when using the
NI-VXI bus interface software on the VXIpc-486 platform.
•Appendix I, Troubleshooting, addresses system-related problems you may encounter when
using the NI-VXI bus interface software on the VXIpc-486 platform.
•Appendix J, Customer Communication, contains forms you can use to request help from
National Instruments or to comment on our products and manuals.
•The Glossary contains an alphabetical list and description of terms used in this manual,
including acronyms, abbreviations, metric prefixes, mnemonics, and symbols.
•The Index contains an alphabetical list of key terms and topics in this manual, including the
The following conventions are used in this manual:
boldBold text denotes menus, menu items, dialog box buttons or options, or
the name of a light-emitting diode (LED).
italicItalic text denotes emphasis, a cross reference, or an introduction to a key
concept.
monospaceText in monospace font is used for the proper names of programs,
subprograms, filenames, and extensions.
bold italicBold italic text denotes a note, caution, or warning.
Model 200 Series The term Model 200 Series is used in this manual to refer to both the
VXIpc-486 Models 200 and 240 embedded computers. When there are
any differences between the two models, this manual describes them
specifically.
<>Angle brackets enclose the name of a key on the keyboard–for example,
<Esc>.
<Tab>Key names are capitalized.
Abbreviations, acronyms, metric prefixes, mnemonics, symbols, and terms are listed in the
Glossary.
Related Documentation
The following documents contain information that you may find helpful as you read this manual:
•IEEE Standard for a Versatile Backplane Bus: VMEbus, ANSI/IEEE Standard 1014-1987
National Instruments wants to receive your comments on our products and manuals. We are
interested in the applications you develop using our products, and we want to help if you have
problems with them. To make it easy for you to contact us, this manual contains comment and
configuration forms for you to complete. These forms are in Appendix J, Customer
This chapter describes the VXIpc-486 Model 200 Series kit for Microsoft Windows, lists what
you need to get started, and lists optional equipment and software.
The VXIpc-486, an embedded computer based on the Industry Standard Architecture (ISA), is
a high-performance, easy-to-use platform for VXIbus systems, featuring complete VXI
functionality through interactive utilities and C function calls. In addition, the VXIpc-486 has
an IEEE 488 interface that is compatible with the NI-488.2 architecture.
This manual describes VXIpc-486 Models 200 and 240 as the Model 200 Series. The major
difference in the two models is the type and speed of the microprocessor.
•The Model 200 uses the 20 MHz Cyrix 80486SLC microprocessor
•The Model 240 uses the 40 MHz Cyrix 80486SLC2 microprocessor
What You Need to Get Started
Microsoft Windows version 3.1 or higher, and MS-DOS version 5.0 or higher installed on
your computer
VXIpc-486 Model 200 Series Module (one of the following):
Model 200 one-slot (with onboard video)
Model 200 two-slot (with onboard video)
Model 200 two-slot (without onboard video)
Model 240 one-slot (with onboard video)
Model 240 two-slot (with onboard video)
Model 240 two-slot (without onboard video)
Keyboard adapter cable
NI-VXI distribution disks for the VXIpc-486 200/500 Series and Microsoft Windows
Contact National Instruments for ordering information for any of the following optional
equipment.
•VXIpc-EFD external 3.5 in. floppy drive (compatible with models without an internal floppy
drive)
•COM2 adapter cable
•I/O expansion slot panel bracket, blank
•Type X1 single-shielded GPIB cables (1 m, 2 m, or 4 m)
•Type X2 double-shielded GPIB cables (1 m, 2 m, or 4 m)
Optional Software
If you want to use LabVIEW with your VXIpc-486, you can order the LabVIEW for Windows
VXI Development System. It contains the following components:
•LabVIEW for Windows Full Development System
•LabVIEW for Windows VXI Library
•LabVIEW for Windows/Sun VXI Instrument Library
If you want to use LabWindows with your VXIpc-486, you can order either the LabWindows for
DOS, VXI Development System, or the LabWindows/CVI for Windows, VXI Development
System.
The LabWindows for DOS, VXI Development System contains the following components.
•LabWindows for DOS Full Develoment System
•LabWindows for DOS VXI Libraries
•LabWindows for DOS VXI Instrument Library
The LabWindows/CVI for Windows, VXI Development System contains the following
components.
•LabWindows/CVI for Windows Full Develoment System
•LabWindows/CVI for Windows VXI Libraries
•LabWindows/CVI for Windows VXI Instrument Library
The VXIpc-486 Series computers are custom VXI computers that you install directly in your
VXI mainframe to achieve the smallest possible physical size for a VXI system. An embedded
computer can take full advantage of the VXI high-performance backplane capabilities and give
you direct control of VXI registers, memory, and triggers.
The VXIpc-486 computers are available in one-slot and two-slot versions. The VXIpc-486/1
requires one VXIbus slot and contains an internal hard disk drive. An optional external floppy
drive is available for transferring files between the VXIpc-486 and other PCs. The VXIpc-486/2
is available in various combinations of internal hard disk drive, internal floppy disk drive, and
PC-compatible I/O expansion kits. The optional external floppy drive is compatible with
VXIpc-486/1 and VXIpc-486/2 models without an internal floppy drive.
All models have connectors for an external floppy drive, a VGA or Super VGA monitor, a GPIB
interface, serial and parallel ports, and VXI clock and trigger signals.
Software Description
The VXIpc-486 Series computers are compatible with numerous software packages and tools
available for general-market computers. To program VXI directly, you can use the NI-VXI bus
interface software included with this kit. The NI-VXI software for the VXIpc-486 and Microsoft
Windows includes a Resource Manager, an interactive VXI resource editor program, a
comprehensive library of software routines for VXI/VME programming, and an interactive
control program for interacting with the VXIbus. You can use this software to seamlessly
program multiple-mainframe configurations and have software compatibility across a variety of
VXI/VME controller platforms. You can use the same software with the Model 200 Series.
The NI-488.2 software kit for the VXIpc-486 and MS-DOS/Windows gives you accessibility to
the industry-standard NI-488.2 software for controlling external GPIB instruments through the
GPIB port on the front panel of your VXIpc-486. The VXIpc-486 Documentation Notice:AT-GPIB and Microsoft Windows Compatibility directs you to the appropriate sections of the
NI-488.2 documentation for information about using the capabilities of the AT-GPIB in your
system.
Chapter 2
VXIpc-486 Configuration and Installation
This chapter describes how to configure and install the VXIpc-486 Model 200 Series embedded
computer. Your VXIpc-486 is shipped with software already installed on the hard disk. Refer to
Chapter 4, NI-VXI Software Installation and Configuration should you need to reinstall any of
the software. Because the VXIpc-486 built-in GPIB port is compatible with the industrystandard AT-GPIB plug-in GPIB interface board for PC AT computers, please refer to GettingStarted with Your AT-GPIB and the NI-488.2 Software for MS-DOS for information about using
the capabilities of the AT-GPIB in your system.
Note:This chapter discusses the VXIpc-486 Models 200 and 240 together as the Model 200
Series. The illustrations in this chapter apply to all models in the series.
FactoryConfiguration
The VXIpc-486 Model 200 Series is factory-configured to function as a VXIbus Slot 0 System
Controller. This is the most commonly used configuration. Table 2-1 shows the details of the
factory configuration.
Table 2-1. VXIpc-486 Model 200 Series Factory Configuration
ItemFactory Configuration
Slot 0:
System Controller
CLK10
MODID Terminator
External CLK10
I/O
Termination
External Trigger InputNot terminated
External Audio/Trigger OutTrigger Out
System RAMPer customer order
Math CoprocessorPer customer order
The System Controller functions include the System Clock (SYSCLK) driver, System Reset
(SYSRESET) driver, Bus Arbiter, and Bus Timer. The Bus Arbiter and Bus Timer are softconfigured, but are enabled or disabled by the Slot 0 System Controller configuration.
You can alter the VXIpc-486 factory configuration, if necessary, to match your system
requirements by changing the jumper settings as described in this chapter, and by running the
VXIEDIT application as described in Chapter 4. The configurable features not listed in Table
2-1 are soft-configured by VXIEDIT.
Configuring the VXIpc-486
This section describes how to modify the VXIpc-486 Model 200 Series factory configuration.
Unless you have special system configuration requirements, you can install and use the
VXIpc-486 without altering the factory configuration. Unless you need to alter the configuration
shown in Table 2-1, skip the following sections and continue with Installing and Starting Up theVXIpc-486, later in this chapter.
Figure 2-1. VXIpc-486 Model 200 Series Parts Locator Diagram (Continues)
Follow these steps to modify the factory configuration:
1. Ground yourself and the VXIpc-486. The VXIpc-486 can be damaged by static discharge.
You are less likely to damage the VXIpc-486 if you place it on a properly grounded antistatic mat and use a wriststrap.
2. Remove the screws that secure the right side cover. Remove the cover to expose the circuit
board.
3. Alter the configuration as required, as described in the following section.
4. Replace the cover and the screws.
Figure 2-1. VXIpc-486 Model 200 Series Parts Locator Diagram (Continued)
Figure 2-1 shows the location of the VXIpc-486 Model 200 Series configurable components and
their physical location relative to some of the major circuit components. The factory jumper
settings are indicated in Figure 2-1 by the black rectangles. The jumper headers not shown in
Figure 2-1 are not user configurable and should not be populated with shunt jumpers.
Shunt jumpers should always be installed on W7 and W10. You may change the position of
these jumpers as required, but do not remove them completely.
Depending on the hardware changes you make to your VXIpc-486, you may need to make some
corresponding changes to the software by running one of the VXI resource editor configuration
programs. Refer to Chapter 4, NI-VXI Software Installation and Configuration, for instructions
on using either the VXIEDIT or VXITEDIT program. These programs are described in greater
detail in the NI-VXI DOS Utilities Reference Manual and the NI-VXI Text Utilities ReferenceManual, respectively.
VXIbus Slot and External CLK10 Configuration Options
Because the VXIbus slot and external CLK10 configuration options are interdependent, they are
discussed together in this section.
The external CLK10 interface is the SMB connector labeled CLK on the VXIpc-486 front panel.
The external CLK10 signal is a TTL-level signal.
Table 2-2 presents six different configuration options of the slot position and external CLK10,
including the factory default settings. Refer to the applicable configuration figures (Figures 2-2
through 2-7) that illustrate how to set up these options.
Table 2-2. VXIbus Slot Position and External CLK10 Configuration Options
Configurations A through D are Slot 0 settings. Do not install the VXIpc-486 in any other slot if
you are using any of these four configuration options.
Warning:Installing a VXIpc-486 configured for Slot 0 operation into any slot other than
Slot 0 can damage the VXIpc-486, the backplane, and the Slot 0 device.
•Configuration A is the factory default mode of the VXIpc-486 Model 200 Series. Use this
mode when the VXIpc-486 is the Slot 0 device and does not need to use the external CLK10
SMB connector on the front panel to receive or send the CLK10 signal. In this configuration,
the onboard CLK10 reference (derived from an oscillator) source drives the differential ECL
CLK10 backplane signals, and the CLK10 is disabled. Use configurations B, C, or D if the
VXIpc-486 is the Slot 0 device and does need to use the external CLK10 connector.
•Configuration B is similar to A, except that the CLK10 SMB is driven with a TTL level
CLK10 derived from the ECL CLK10 driven on the backplane.
•In configuration C, the CLK10 SMB can be connected to a TTL CLK10 source to generate
the ECL CLK10 on the backplane.
•Configuration D is similar to C, except that the external CLK10 reference is terminated with
a 50 Ω resistor to ground.
The four Slot 0 settings are useful in multiple-mainframe configurations. For example, to
synchronize multiple mainframes together, you can use a VXIpc-486 as the clock source and
configure it to configuration B. Configure other Slot 0 controllers in other mainframes to
configuration C and connect the CLK10 SMBs together. The frames now have synchronized
CLK10 signals, which can be used in conjunction with the external trigger lines to synchronize
devices in multiple mainframes.
Non-Slot 0 Configurations
If you will be installing the VXIpc-486 Model 200 Series in any slot other than Slot 0, use either
configuration E or F. As a Non-Slot 0 device, the VXIpc-486 accepts the CLK10 signal from the
backplane.
•In configuration E, the VXIpc-486 Model 200 Series accepts the CLK10 signal from the
backplane, and terminates the differential ECL CLK10 signals with 50 Ω resistors to -2V.
•Configuration F is similar to E, except that the VXIpc-486 also drives the external CLK10
connector with a TTL CLK10 reference signal.
As mentioned earlier, some hardware configurations require that you make a corresponding
change in the software. For example, when you configure the VXIpc-486 as a Non-Slot 0
device, you need to use the Bus Configuration Editor in the VXIEDIT or VXITEDIT program to
change both the Local Bus Timeout and VXI Bus Timeout values to DISABLED. (The default
values are 32 µs for the Local Bus Timeout and 128 µs for the VXI Bus Timeout because the
VXIpc-486 is factory configured to be a Slot 0 device.)
Additionally, if you do not want the VXIpc-486 to be the system Resource Manager, use the
Logical Address Configuration Editor to change the Logical Address field to a non-zero, unused
logical address. (The default logical address of the VXIpc-486 is 0.)
MODID Signal Termination
W3 configures the MODID signal termination for Slot 0/Non-Slot 0 operation. When configured
for Slot 0 operation (Figure 2-2a), W3 causes the MODID signal to be terminated with a 16.9 kΩ
pull-up resistor. When configured for Non-Slot 0 operation (Figure 2-2b), W3 causes the
MODID signal to be terminated with a 825 Ω pull-down resistor.
W7
J14J13
J15
W11
J16
W6
W1
W4
W5
W2
P2P1
W8
W3
J12
J17
W3W3
a. Slot 0*
b. Non-Slot 0
* Factory Configuration
Figure 2-2. MODID Signal Termination Settings
System Controller
W7 configures the System Controller for Slot 0/Non-Slot 0 operation. When configured for Slot
0 operation (Figure 2-3a), W7 enables the VXIpc-486 Model 200 Series System Controller
functions (SYSCLK and SYSRESET drivers, the Bus Arbiter and Bus Timer). When configured
for Non-Slot 0 operation (Figure 2-3b), W7 disables the System Controller functions.
W6 configures the receiving source for the CLK10 reference. For internal clock generation, set
the jumper as shown in Figure 2-4a. When the source is from the CLK10 input on the front
panel of the VXIpc-486, set the jumper as shown in Figure 2-4b. Notice that when configured
for Non-Slot 0, CLK10 will always be received from the backplane.
W7
J14J13
J15
W11
J16
W6
W1
W4
W5
W2
P2P1
W8
W3
J12
J17
W6W6
a. Slot 0*
b. Non-Slot 0
* Factory Configuration
Figure 2-4. CLK10 Generation Settings
VXIbus CLK10
This jumper block configures the CLK10 transceivers. Figure 2-5(a) shows the default Slot 0
configuration in which the VXIpc-486 sources the CLK10 signal. If you want to configure the
VXIpc-486 as a Non-Slot 0 device, you should choose the setting in Figure 2-5(b). In this
configuration, the VXIpc-486 does not drive the CLK10 signal onto the bus.
Warning:Do not set the W1, W2, W4, W5 jumper block to any setting other than those
shown in Figure 2-5. Any other settings could result in damage to the VXIpc-486
and any other devices installed on the backplane.
The W11 jumper configures the CLK SMB connector on the front panel. Keep the default
configuration shown in Figure 2-6(a) if the CLK connector is disconnected and used as neither
an input nor an output for the CLK10 signal. Figure 2-6(b) shows the configuration to use if you
want the CLK10 signal that appears on the backplane to also appear on the CLK SMB connector.
The configuration in Figure 2-6(c) is useful only if you have configured the W24 jumper to use
the external CLK10 input. In this setting, the signal supplied to the CLK SBM connector is
driven onto the VXIbus backplane as CLK10.
W7
J14J13
J15
W11
J16
W6
W1
W4
W5
W2
P2P1
W8
W3
J12
J17
W11W11
a. Disabled*
* Factory Configuration
b. External
CLK10 Input
W11
c. External
CLK10 Output
Figure 2-6. External CLK10 Settings
External CLK10 Termination
The J16 jumper configures whether the CLK10 signal is terminated. This is important only if
you are daisy-chaining the CLK10 signal among multiple chassis. The source of the CLK10 and
the last chassis in the daisy-chain should be terminated to prevent electrical reflections. Notice
that this option is useful only if you have selected the external CLK by jumpers W11 and W6.
The external TTL trigger input interface is the SMB connector labeled TRG IN on the
VXIpc-486 front panel. Figure 2-8 shows the external trigger input circuit.
TRG IN
External Trigger Input Signal
Connector
W8
50Ω
Figure 2-8. External Trigger Input Circuit
The W8 jumper configures whether the external TTL trigger input is terminated with a 50 Ω
resistor to ground. This is important only if you are daisy-chaining the external trigger input
among multiple chassis. The source of the trigger input and the last chassis in the daisy-chain
should be terminated to prevent electrical reflections. Figure 2-9 shows the external trigger input
termination settings.
The external audio/trigger output interface is the SMB connector labeled AUDIO/TRG OUT on
the VXIpc-486 front panel.
You can configure the external audio/trigger output as either an audio output or a TTL trigger
output. The audio/trigger output is connected to the circuit card by a twisted-pair cable. You
can configure the audio/trigger output by connecting the cable to either J13 or J17. Table 2-3
shows the configuration options.
The amount of installed RAM is factory configured per customer order. You can change the
amount of installed RAM on VXIpc-486/1 models by installing dynamic RAM single in-line
memory modules (DRAM SIMMs) in positions A1 and A2, as shown in Table 2-4 and
Figure 2-1.
Warning:Do not attempt to change the factory RAM configuration of the VXIpc-486/2.
Disassembling the internal brackets in an attempt to expose the DRAM SIMM
sockets will void your warranty.
Table 2-4. Installed RAM Configuration Options
Installed RAMA2A1
2 MB1 MB x 18Not Installed
4 MB1 MB x 181 MB x 18
8 MB4 MB x 18Not Installed
10 MB4 MB x 181 MB x 18
16 MB4 MB x 184 MB x 18
National Instruments recommends the following DRAM SIMMs for use with the VXIpc-486/1:
•Toshiba part number THM181000ASG-10L or equivalent 1 MB x 18 SIMMs
•Toshiba part number THM184080SG-10L or equivalent 4 MB x 18 SIMMs.
Note:Always reconfigure the VXIpc-486/1 to the factory DRAM configuration shown on
the ID label before returning it to the factory for repairs or upgrades.
80387SX Math Coprocessor Configuration
An 80387SX math coprocessor is installed in your VXIpc-486 Model 200 Series at the factory, if
ordered as an option.
Warning: Do not attempt to install or remove a math coprocessor in the VXIpc-486/2.
Disassembling the internal brackets in an attempt to expose the 80387SX socket
will void your warranty.
You can install an Intel 387SX or equivalent math coprocessor in a VXIpc-486/1 yourself, by
following these steps:
1. Place the 80387SX (in its shipping package) on the anti-static mat with the VXIpc-486.
2. Locate the 80387SX socket (U65) on the VXIpc-486 (See Figure 2-1).
Warning:Be sure to orient the 80387SX correctly before inserting it in the socket. If you
insert the chip the wrong way, the 80387SX and the VXIpc-486/1 will be
damaged.
3. Orient the 80387SX so that the corner notch on the 80387SX matches the position of the
corner notch in Figure 2-1 and the reference dot (locating pin 1) matches the socket
reference.
Warning:Avoid excessive pressure while inserting the 80387SX. Bending the circuit card
could damage the VXIpc-486.
4. Insert the 80387SX into the socket, pressing firmly and evenly to fully seat the pins.
Note:Always reconfigure the VXIpc-486/1 to the factory math coprocessor configuration
shown on the ID label before returning it to the factory for repairs or upgrades.
If you have finished configuring the VXIpc-486, you are now ready to install it in your
mainframe.
The following installation instructions apply to the VXIpc-486 Model 200 Series. Refer to your
mainframe user manual for further instructions regarding mainframe configuration and module
installation. Figure 2-10 shows the location of the VXIpc-486 front panel connectors. Refer to
Appendix C, Connectors, for pinout details about each connector.
1.Turn off the mainframe power.
Warning:Installing a VXIpc-486 Model 200 Series configured for Slot 0 operation into
any slot other than Slot 0 can result in damage to the VXIpc-486, the backplane,
and the Slot 0 device.
2.If the VXIpc-486 is configured for Slot 0 operation, install it in Slot 0. If the VXIpc-486
is configured as a Non-Slot 0 device, install it in any slot other than Slot 0. The VXIbusSlot and External CLK10 Configuration Options section, earlier in this chapter, describes
the different configuration options for Slot 0 and non-Slot 0 applications. Refer also to
your mainframe user manual for instructions regarding slot configuration.
3.Tighten the retaining screws at the top and bottom of the front panel.
4.Connect the keyboard to the KEYBOARD connector. Use the keyboard adapter cable
that you received with your kit to adapt AT-style keyboards to the VXIpc-486 mini-DIN
connector.
5.Connect the VGA monitor video cable to the VGA connector and tighten the screws.
6.On VXIpc-486 models without an internal floppy drive, connect the optional external
floppy drive (EFD) to the DISK DRIVE connector. The EFD is not compatible with
models that have an internal floppy drive.
7.Connect serial devices to the COM1 or COM2 connectors, if required by your system
configuration. Use the COM2 adapter cable (available as an accessory) to attach serial
devices to COM2.
8.Connect parallel devices to the LPT connector, if required by your system configuration.
9.Connect the external CLK10 signal to the CLK connector, if required by your system
configuration.
10.Connect the external trigger input signal to the TRG IN connector, if required by your
system configuration.
11.Connect the external audio or trigger output signal to the AUDIO/TRG OUT connector, if
required by your system configuration.
12.To start up the VXIpc-486, turn on the mainframe power. Also apply power to any
peripherals, such as the monitor. The basic input/output system (BIOS) boot sequence
should now begin to display startup messages on the monitor. Chapter 3, BIOS Setup,
contains information on BIOS that you may need in case you either have special BIOS
configuration requirements or you encounter a BIOS-related error message.
The front panel LED indicators also provide information about the VXIpc-486 and VXIbus
system status. The SYSFAIL and FAILED LEDs remain lit until the VXIpc-486 initialization
program VXIINIT.EXE is run. See Appendix B, NI-VXI Software Overview, for more
information about VXIINIT. See Appendix C, Front Panel Indicators, for more information
about the front panel LED operation.
Figure 2-10. VXIpc-486 Model 200 Series Front Panel
This chapter describes how to set up the basic input/output system (BIOS) for the VXIpc-486
Model 200 Series computer. The VXIpc-486 uses the Quadtel AT Compatible Enhanced BIOS.
The BIOS defines the way in which software interacts with the VXIpc-486 hardware. The BIOS
has a number of setup parameters that contain the VXIpc-486 system configuration information.
The BIOS setup parameters are stored in the CMOS RAM, which is backed up by battery. You
use the BIOS utility Setup (part of the Quadtel Extended BIOS Software System) to modify the
time-of-day, date, floppy and hard disk types, processor speed, and shadow RAM operation.
The BIOS parameters are factory configured for proper operation. Unless you have special
BIOS configuration requirements, you can proceed to Chapter 4, NI-VXI Software Installation
and Configuration.
Running Setup
Occasionally, you may encounter a BIOS-related error message that requires you to run Setup.
You may also need to change one or more of the BIOS parameters for compatibility with a
software application. If you need to run Setup, follow these steps:
1. Press <F2> after power-on to display the Extended BIOS Software main window. This
window also appears if you press <F2> after a power-on self-test error is displayed.
2. Select Setup, using the Up/Down Arrow and <Enter> keys, to display the Extended BIOS
Setup window.
3. Use the Up/Down Arrow or <Tab> keys to select the item you want to change. Press <F5>
to select the previous (smaller) value, <F6> to select the next (larger) value, or <F9> to
automatically configure the selected item.
4. Press <F10> to save the configuration parameters you edited.
5. Press <Esc> to exit Setup. If you have not saved your changes, you can do so at this time.
6. Press <Esc> to exit the Extended BIOS Software main window. The VXIpc-486 will restart.