National Instruments NI PXIe-1065 User Manual
PXI Express
NI PXIe-1065 User Manual
NI PXIe-1065 User Manual
TM
December 2008
371990B-01
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Warranty
The NI PXIe-1065 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 instruc tions 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.
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Contents
About This Manual
Conventions ...................................................................................................................vii
Related Documentation..................................................................................................viii
Chapter 1
Getting Started
Unpacking......................................................................................................................1-1
What You Need to Get Started ......................................................................................1-1
Key Features ..................................................................................................................1-2
Chassis Description........................................................................................................1-4
Optional Equipment.......................................................................................................1-5
EMC Filler Panels ...........................................................................................1-5
Rack Mount Kit ...............................................................................................1-5
Slot Blockers ...................................................................................................1-6
NI PXIe-1065 Chassis Backplane Overview.................................................................1-6
Interoperability with CompactPCI ..................................................................1-6
System Controller Slot ....................................................................................1-6
Hybrid Peripheral Slots ...................................................................................1-7
PXI Peripheral Slots ........................................................................................1-7
PXI Express Peripheral Slots...........................................................................1-8
System Timing Slot .........................................................................................1-8
PXI Local Bus .................................................................................................1-9
PXI Trigger Bus ..............................................................................................1-10
System Reference Clock..................................................................................1-11
PXIe_SYNC_CTRL ........................................................................................1-14
Chapter 2
Installation and Configuration
Safety Information .........................................................................................................2-1
Chassis Cooling Considerations ....................................................................................2-2
Providing Adequate Clearance ........................................................................2-2
Chassis Ambient Temperature Definition.......................................................2-4
Setting Fan Speed............................................................................................2-5
Installing Filler Panels.....................................................................................2-5
Installing Slot Blockers ...................................................................................2-5
Rack Mounting ..............................................................................................................2-5
Connecting Safety Ground.............................................................................................2-5
Connecting to Power Source..........................................................................................2-6
© National Instruments Corporation v NI PXIe-1065 User Manual
Contents
Installing a PXI Express System Controller.................................................................. 2-6
Installing Peripheral Modules........................................................................................2-8
Power Inhibit Switch LED Indicator............................................................................. 2-10
Remote Voltage Monitoring and Control...................................................................... 2-10
Inhibit Mode Switch...................................................................................................... 2-12
PXI_CLK10 Rear Connectors....................................................................................... 2-12
PXI Express System Configuration with MAX ............................................................ 2-12
Using System Configuration and Initialization Files .................................................... 2-16
Chapter 3
Maintenance
Service Interval.............................................................................................................. 3-1
Preparation.....................................................................................................................3-1
Cleaning......................................................................................................................... 3-1
Resetting the AC Mains Circuit Breaker....................................................................... 3-2
Replacing the Modular Power Supply........................................................................... 3-3
PXI-1 System Configuration........................................................................... 2-13
Trigger Configuration in MAX....................................................................... 2-14
PXI Trigger Bus Routing ................................................................................ 2-15
Interior Cleaning ............................................................................................. 3-1
Exterior Cleaning ............................................................................................ 3-2
Removal .......................................................................................................... 3-3
Installation.......................................................................................................3-3
Configuration .................................................................................................. 3-4
Connecting Safety Ground.............................................................................. 3-4
Connecting to Power Source........................................................................... 3-4
Appendix A
Specifications
Appendix B
Pinouts
Appendix C
Technical Support and Professional Services
Glossary
Index
NI PXIe-1065 User Manual vi ni.com
About This Manual
The NI PXIe-1065 User Manual describes the features of the NI PXIe-1065
chassis and contains information about configuring the chassis, installing
the modules, and operating the chassis.
Conventions
The following conventions are used in this manual:
» The » symbol leads you through nested menu items and dialog box options
to a final action. The sequence File»Page Setup»Options directs you to
pull down the File menu, select the Page Setup item, and select Options
from the last dialog box.
This icon denotes a note, which alerts you to important information.
This icon denotes a caution, which advises you of precautions to take to
avoid injury, data loss, or a system crash. When this symbol is marked on
the product, refer to the Read Me First: Safety and Radio-Frequency
Interference document, shipped with the product, for precautions to take.
bold Bold text denotes items that you must select or click in the software, such
as menu items and dialog box options. Bold text also denotes parameter
names.
italic Italic text denotes variables, emphasis, a cross-reference, or an introduction
to a key concept. Italic text also denotes text that is a placeholder for a word
or value that you must supply.
monospace Text in this font denotes text or characters that you should enter from the
keyboard, sections of code, programming examples, and syntax examples.
This font is also used for the proper names of disk drives, paths, directories,
programs, subprograms, subroutines, device names, functions, operations,
variables, filenames, and extensions.
© National Instruments Corporation vii NI PXIe-1065 User Manual
About This Manual
Related Documentation
The following documents contain information that you might find helpful
as you read this manual:
• IEEE 1101.1-1991, IEEE Standard for Mechanical Core
Specifications for Microcomputers Using IEC 603-2 Connectors
• IEEE 1101.10, IEEE Standard for Additional Mechanical
Specifications for Microcomputers Using IEEE 1101.1 Equipment
Practice
• PICMG EXP.0 R1.0 CompactPCI Express Specification,
PCI Industrial Computers Manufacturers Group
• PCI Express Base Specification, Revision 1.1, PCI Special Interest
Group
• PXI-5 PXI Express Hardware Specification, Revision 1.0,
PXI Systems Alliance
NI PXIe-1065 User Manual viii ni.com
Getting Started
This chapter describes the key features of the NI PXIe-1065 chassis and
lists the kit contents and optional equipment you can order from National
Instruments.
Unpacking
Carefully inspect the shipping container and the chassis for damage. Check
for visible damage to the metal work. Check to make sure all handles,
hardware, and switches are undamaged. Inspect the inner chassis for any
possible damage, debris, or detached components. If damage appears to
have been caused during shipment, file a claim with the carrier. Retain the
packing material for possible inspection and/or reshipment.
What You Need to Get Started
The NI PXIe-1065 chassis kit contains the following items:
1
❑ NI PXIe-1065 chassis
❑ Filler panels
❑ AC power cable—refer to Table 1-1 for AC power cables
❑ NI PXIe-1065 User Manual
❑ Software media with PXI Platform Services 2.0 or higher
❑ Read Me First: Safety and Radio-Frequency Interference
❑ Chassis number labels
© National Instruments Corporation 1-1 NI PXIe-1065 User Manual
Chapter 1 Getting Started
Key Features
Table 1-1. AC Power Cables
Power Cable Reference Standards
Standard 120 V (USA) ANSI C73.11/NEMA 5-15-P/IEC83
Switzerland 220 V SEV
Australia 240 V AS C112
Universal Euro 230 V CEE (7), II, IV, VII IEC83
North America 120 V ANSI C73.20/NEMA 5-15-P/IEC83
United Kingdom 230 V BS 1363/IEC83
If you are missing any of the items listed in Table 1-1, or if you have the
incorrect AC power cable, contact National Instruments.
The NI PXIe-1065 chassis combines a high-performance 18-slot
PXI Express backplane with a high-output power supply and a structural
design that has been optimized for maximum usability in a wide range
of applications. The chassis’ modular design ensures a high level of
maintainability, resulting in a very low mean time to repair (MTTR).
The NI PXIe-1065 chassis fully complies with the PXI-5 PXI Express
Hardware Specification, offering advanced timing and synchronization
features.
The key features of the NI PXIe-1065 chassis include the following:
High Performance for Instrumentation Requirements
• Up to 1 GB/s (single direction) per PXI Express slot dedicated
bandwidth (x4 PCIe)
• 30 W per slot cooling meets increased PXIe cooling requirements
• Low-jitter internal 10 MHz reference clock for PXI slots with
± 25 ppm stability
• Low-jitter internal 100 MHz reference clock for PXIe slots with
± 25 ppm stability
• Quiet operation for 0 to 30 °C at 43.6 dBA
NI PXIe-1065 User Manual 1-2 ni.com
Chapter 1 Getting Started
• Variable speed fan controller optimizes cooling and acoustic emissions
• Remote power-inhibit control
• Complies with PXI and CompactPCI Specifications
High Reliability
• 0 to 55 °C extended temperature range
• Power supply, temperature, and fan monitoring
• HALT tested for increased reliability
• Field replaceable power supply shuttle
Multi-Chassis Support
• PXIe System Timing Slot for tight synchronization across chassis
• Rear CLK10 I/O connectors
• Switchless CLK10 routing
Optional Features
• Front and rear rack-mount kits
• Replacement power supply shuttle
• EMC filler panels
• Slot blockers for improved cooling performance
• Factory installation services
© National Instruments Corporation 1-3 NI PXIe-1065 User Manual
Chapter 1 Getting Started
Chassis Description
Figures 1-1 and 1-2 show the key features of the NI PXIe-1065 chassis
front and back panels. Figure 1-1 shows the front view of the
NI PXIe-1065. Figure 1-2 shows the rear view of the NI PXIe-1065.
1
13
12
1
11
1 Chassis Carry Handle
2 Backplane Connectors
3 PXI Filler Panels
4 Chassis Model Name
5 Removable Feet
6 PXI Peripheral Slots (9x)
7 PXI Express System Timing Slot
2
H
65 689
8
3
NI PXIe-1065
HHH
14
181716151312111098765432
7810
8 PXI Express Hybrid Peripheral Slots (4x)
9 PXI Express Peripheral Slots (3x)
10 PXI Express System Controller Slot
11 Power Inhibit Switch
12 Power Inhibit Switch LED
13 System Controller Expansion Slots
4
5
Figure 1-1. Front View of the NI PXIe-1065 Chassis
NI PXIe-1065 User Manual 1-4 ni.com
Chapter 1 Getting Started
7
3
2
1
4
5
4
6
9
8
10
11
12
4
1 Universal AC Input
2 Push-Reset Circuit Breaker
3 Chassis Ground Screw
4 Fan Guard Retainer Screws
5 Power Supply Shuttle ID Label
610 MHz REF OUT BNC
7 10 MHz REF IN BNC
Optional Equipment
Contact National Instruments to order the following options for the
NI PXIe-1065 chassis.
EMC Filler Panels
Optional EMC filler panel kits are available from National Instruments.
Rack Mount Kit
There are two optional kits for mounting the PXIe-1065 chassis into a rack.
The first option is a pair of mounting brackets for use on the front of the
chassis. The second option is a rear rack mount kit. The rear rack mount kit
differs from the front kit to allow for easier installation into the rack.
For more information, refer to Figure A-3, NI Chassis Rack Mount Kit
Components.
4
8 Remote Inhibit and Voltage Monitoring Connector
9 Inhibit Mode Selector Switch
10 Fan Speed Selector Switch
11 Power Supply Shuttle Mounting Screws (10x)
12 Power Supply Shuttle Handle (2x)
13 Power Supply Shuttle
14 Fan Guard
14
Figure 1-2. Rear View of the NI PXIe-1065 Chassis
13
© National Instruments Corporation 1-5 NI PXIe-1065 User Manual
Chapter 1 Getting Started
Slot Blockers
Optional slot blocker kits are available from National Instruments for
improved thermal performance when all slots are not used.
NI PXIe-1065 Chassis Backplane Overview
This section provides an overview of the backplane features for the
NI PXIe-1065 chassis.
Interoperability with CompactPCI
The design of the NI PXIe-1065 provides you the flexibility to use the
following devices in a single PXI Express chassis:
• PXI Express compatible products
• CompactPCI Express compatible 4-Link system controller products
• CompactPCI Express compatible Type-2 peripheral products
• PXI peripheral products
• Standard CompactPCI peripheral products
System Controller Slot
The system controller slot is Slot 1 of the chassis and is a 4-Link
configuration system slot as defined by the CompactPCI Express and
PXI Express specifications. It has three system controller expansion slots
for system controller modules that are wider than one slot. These slots
allow the system controller to expand to the left to prevent the system
controller from using peripheral slots.
The backplane routes a x4 PCI Express link from the system controller
slot to slots 7 and 8, and a x1 PCI Express link to a PCI Express to PCI
Translation Bridge on the backplane. The PCI Express to PCI Translation
Bridge on the backplane provides a 32-bit/33MHz PCI bus to slots 2 to 7.
The second PCI Translation Bridge provides PCI bus to slots 11, 12, 13, 15,
16, 17, and 18 (not to slot 14).
A x4 link goes to the PXI Express switch and the PCI Express connectivity
of slots 9 to 14 is connected through the switch.
The system controller slot also has connectivity to some PXI features such
as: PXI_CLK10, PXI Star, PXI Trigger Bus and PXI Local Bus 6.
NI PXIe-1065 User Manual 1-6 ni.com
By default, the system controller will control the power supply with the
PS_ON# signals. A logic low on this line will turn the power supply on.
Note The Inhibit Mode switch on the rear of the chassis must be in the Default position
for the system controller to have control of the power supply. Refer to the Inhibit Mode
Switch section of Chapter 2, Installation and Configuration, for details about the Inhibit
Mode switch.
Hybrid Peripheral Slots
The chassis provides four hybrid peripheral slots as defined by the PXI-5
PXI Express Hardware Specification: slot 7 and slots 11–13. A hybrid
peripheral slot can accept the following peripheral modules:
• A PXI Express Peripheral with x4 or x1 PCI Express link to the system
• A CompactPCI Express Type-2 Peripheral with x4 or x1 PCI Express
• A hybrid-compatible PXI Peripheral module that has been modified by
• A CompactPCI 32-bit peripheral on the backplane’s 32-bit PCI bus.
Chapter 1 Getting Started
slot or through a switch to the system slot.
link to the system slot or through a switch to the system slot.
replacing the J2 connector with an XJ4 connector installed in the upper
eight rows of J2. Refer to the PXI Express Specification for details. The
PXI Peripheral communicates through the backplane’s 32-bit PCI bus.
The hybrid peripheral slots provide full PXI Express functionality and
32-bit PXI functionality except for PXI Local Bus. The hybrid peripheral
slot only connects to PXI Local Bus 6 left and right.
PXI Peripheral Slots
There are nine PXI peripheral slots which will accept PXI or CompactPCI
peripherals: slots 2–6 and slots 15–18. These slots are on the backplane’s
32-bit PCI busses. These slots offer full PXI functionality, but have no
PXI Express features. The 64-bit PCI signals on the P2 connectors are not
connected.
© National Instruments Corporation 1-7 NI PXIe-1065 User Manual
Chapter 1 Getting Started
PXI Express Peripheral Slots
There are three PXI Express peripheral slots: slots 8–10. Slot 8 is directly
connected to the system slot with a x4 PCI Express link. Slots 9 and 10 are
connected to the system slot through a PCI Express switch. PXI Express
peripheral slots can accept the following modules:
• A PXI Express Peripheral with x4 or x1 PCI Express link to the system
slot or through a switch to the system slot.
• A CompactPCI Express Type-2 Peripheral with x4 or x1 PCI Express
link to the system slot or through a switch to the system slot.
System Timing Slot
The System Timing Slot is slot 14. The system timing slot will accept the
following peripheral modules:
• A PXI Express System Timing Module with x4 or x1 PCI Express link
to the system slot through a PCIe switch.
• A PXI Express Peripheral with x4 or x1 PCI Express link to the system
slot through a PCIe switch.
• A CompactPCI Express Type-2 Peripheral with x4 or x1 PCI Express
link to the system slot through a PCIe switch.
The system timing slot has 3 dedicated differential pairs (PXIe_DSTAR)
connected from the TP1 and TP2 connectors to the XP3 connector for each
PXI Express peripheral or hybrid peripheral slot, as well as routed back to
the XP3 connector of the system timing slot as shown in Figure 1-3. The
PXIe_DSTAR pairs can be used for high-speed triggering, synchronization
and clocking. Refer to the PXI Express Specification for details.
The system timing slot also has a single-ended (PXI Star) trigger connected
to every slot. Refer to Figure 1-3 for details.
The system timing slot has a pin (PXI_CLK10_IN) through which a system
timing module may source a 10MHz clock to which the backplane will
phase-lock. Refer to the System Reference Clock section for details.
The system timing slot has a pin (PXIe_SYNC_CTRL) through which a
system timing module can control the PXIe_SYNC100 timing. Refer to the
PXI Express Specification and the PXIe_SYNC_CTRL section of this
chapter for details.
NI PXIe-1065 User Manual 1-8 ni.com
PXI STAR 16
PXI STAR 14
PXI STAR 15
PXI STAR 12
PXI STA R 1 3
PX DSTAR 10
PX STAR 11
PXI STA R 8
Chapter 1 Getting Started
PXI STA R 4
PXI STAR 2 PXI STAR 9
PXI STAR 0
PXI STAR 1
PXI STAR 3
PXI STAR 6
PXI STAR 5
PXI STAR 7
XP4
P2
XP3
P2
XP2
P1
XP1
1
P1
2
3
PXI Local Bus
P2
P2
P2
XP4
XP3
8
XP4
XP3
9
XP4
XP3
10
XP4
XP3
XP4
XP3
XP4
XP3
XP4
PXIe_DSTA R 1
XP3
XP4
PXIe_DSTA R 8
PXIe_DSTA R 1 1
P2
XP3
P2
P2
P2
TP2
P1
P1
P1
P1
H
4
65
7
PXIe_DSTAR 6
PXIe_DSTAR 3
PXIe_DSTAR 4
PXIe_DSTAR 5
P1
P1
HH12H
11
PXIe_DSTAR 1
PXIe_DSTAR 2
13
P1
14
TP1
P1
15
16 17 18
P1
P1
P1
Figure 1-3. PXIe_DSTAR and PXI Star Connectivity Diagram
The PXI backplane local bus is a daisy-chained bus that connects each
peripheral slot with adjacent peripheral slots to the left and right, as shown
in Figure 1-4.
The backplane routes the full 13-line PXI Local Bus between adjacent PXI
slots (slots 2–6 and 15–18) and PXI Local Bus 6 between all other slots.
Refer to Figure 1-4 for details. The left local bus 6 from slot 1 is not routed
anywhere and the right local bus signals from slot 18 are not routed
anywhere.
© National Instruments Corporation 1-9 NI PXIe-1065 User Manual
Chapter 1 Getting Started
Local bus signals may range from high-speed TTL signals to analog signals
as high as 42 V.
Initialization software uses the configuration information specific to each
adjacent peripheral module to evaluate local bus compatibility.
PXI Trigger Bus Segment 1
XP4
PXI_LB (12:0)
PXI_LB (12:0)
P2
P1
3
4
1
XP3
XP2
XP1
PXI_LB6
P2
P1
2
PXI Trigger Bus
PXI_LB (12:0)
P2
P1
Trigger Bus
Buffer Bridge
PXI_LB (12:0)
P2
P2
P1
P1
65
PXI
PXI Trigger Bus Segment 2
XP4
XP4
XP4
PXI_LB6
PXI_LB6
XP3
P1
7
PXI_LB6
XP3
XP3
8
9
H
XP4
PXI_LB6
XP3
10
XP4
PXI_LB6
PXI_LB6
XP3
P1
HH12H
11
PXI
Trigger Bus
Buffer Bridge
PXI Trigger Bus Segment 3
13
XP4
XP3
P1
XP4
PXI_LB6
XP3
TP2
TP1
14
PXI_LB6
P2
P1
15
XP4
XP3
P1
PXI_LB6
PXI_LB (12:0)
16 17 18
Figure 1-4. PXI Trigger Bus and Local Bus Connectivity Diagram
All slots on the same PXI bus segment share eight PXI trigger lines. You
can use these trigger lines in a variety of ways. For example, you can use
triggers to synchronize the operation of several different PXI peripheral
modules. In other applications, one module located in the system timing
slot can control carefully timed sequences of operations performed on other
modules in the system. Modules can pass triggers to one another, allowing
precisely timed responses to asynchronous external events the system is
monitoring or controlling.
PXI_LB (12:0)
P2
P1
PXI_LB (12:0)
P2
P1
P2
P1
The PXI trigger lines from adjacent PXI trigger bus segments can be routed
in either direction across the PXI trigger bridges through buffers. This
allows you to send trigger signals to, and receive trigger signals from, every
slot in the chassis. Static trigger routing (user-specified line and directional
NI PXIe-1065 User Manual 1-10 ni.com
assignments) can be configured through Measurement & Automation
Explorer (MAX). Dynamic routing of triggers (automatic line assignments)
is supported through certain National Instruments drivers like NI-DAQmx.
Note Although any trigger line may be routed in either direction, it cannot be routed in
more than one direction at a time.
System Reference Clock
The PXIe-1065 chassis supplies the PXI 10 MHz system clock signal
(PXI_CLK10) independently driven to each peripheral slot and
PXIe_CLK100 and PXIe_SYNC100 to the PXI Express slots, hybrid slots,
and system timing slot.
An independent buffer (having a source impedance matched to the
backplane and a skew of less than 1 ns between slots) drives PXI_CLK10
to each peripheral slot. Refer to Figure 1-5 for the routing configuration of
PXI_CLK10. You can use this common reference clock signal to
synchronize multiple modules in a measurement or control system.
An independent buffer drives PXIe_CLK100 to the PXI Express peripheral
slots, hybrid peripheral slots, and system timing slot. Refer to Figure 1-5
for the routing configuration of PXIe_CLK100. These clocks are matched
in skew to less than 100 ps. The differential pair must be terminated on the
peripheral with LVPECL termination for the buffer to drive PXIe_CLK100
so that when there is no peripheral or a peripheral that does not connect to
PXIe_CLK100, there is no clock being driven on the pair to that slot.
Chapter 1 Getting Started
An independent buffer drives PXIe_SYNC100 to the PXI Express
peripheral slots, hybrid peripheral slots, and system timing slot. Refer
to Figure 1-5 for the routing configuration of PXIe_SYNC100. The
differential pair must be terminated on the peripheral with LVPECL
termination for the buffer to drive PXIe_SYNC100 so that when there is
no peripheral or a peripheral that does not connect to PXIe_SYNC100,
there is no SYNC100 signal being driven on the pair to that slot.
© National Instruments Corporation 1-11 NI PXIe-1065 User Manual
Chapter 1 Getting Started
XP4
XP3
XP2
XP1
1
PXIe_CLK100
PXIe_SYNC100
P2
P1
2
10 MHz
REF IN
PXI_CLK10
XP4
XP4
XP3
P2
P2
P2
P2
P1
P1
P1
P1
3
4
65
XP3
8
9
P1
H
7
XP4
XP3
10 MHz
REF OUT
XP4
XP3
10
PXI_CLK10_IN
XP4
XP4
XP3
XP3
P1
P1
HH12H
11
13
XP4
XP3
P1
14
XP4
XP3
TP2
TP1
P2
P1
15
16 17 18
P2
P1
P2
P1
P2
P1
Figure 1-5. Distribution of PXI_CLK10, PXIe_CLK100, and PXIe_SYNC100
PXI_CLK10, PXIe_CLK100 and PXIe_SYNC100 have the default timing
relationship described in Figure 1-6.
0123 45678 90123 45678 90123 45678 9
PXIe_CLK100
PXI_CLK10
PXIe_SYNC100
Figure 1-6. System Reference Clock Default Behavior
To synchronize the system to an external clock, you can drive PXI_CLK10
from an external source through the PXI_CLK10_IN pin on the System
Timing Slot. Refer to Table B-8, XP4 Connector Pinout for the System
Timing Slot, for the pinout. When a 10MHz clock is detected on this pin,
the backplane automatically phase-locks the PXI_CLK10, PXIe_CLK100,
and PXIe_SYNC100 signals to this external clock and distributes these
NI PXIe-1065 User Manual 1-12 ni.com
Chapter 1 Getting Started
signals to the slots (refer to Figure 1-5 for the distribution of PXI_CLK10,
PXIe_CLK100 and PXIe_SYNC100). Refer to Appendix A,
Specifications, for the specification information for an external clock
provided on the PXI_CLK10_IN pin of the system timing slot.
You also can drive a 10MHz clock on the 10 MHz REF IN connector on the
rear of the chassis. When a 10MHz clock is detected on this connector, the
backplane automatically phase-locks the PXI_CLK10, PXIe_CLK100, and
PXIe_SYNC100 signals to this external clock and distributes these signals
to the slots (refer to Figure 1-5 for the distribution of PXI_CLK10,
PXIe_CLK100 and PXIe_SYNC100). Refer to Appendix A,
Specifications, for the specification information for an external clock
provided on the 10 MHz REF IN connector on the rear panel of the chassis.
If the 10 MHz clock is present on both the PXI_CLK10_IN pin of the
System Timing Slot and the 10 MHz REF IN connector on the rear of the
chassis, the signal on the System Timing Slot is selected. Refer to Table 1-2
which explains how the 10 MHz clocks are selected by the backplane.
Table 1-2. Backplane External Clock Input Truth Table
System Timing Slot
PXI_CLK10_IN
Rear Chassis Panel
10 MHz REF IN
Backplane PXI_CLK10, PXIe_CLK100
and PXIe_SYNC100
No clock present No clock present Backplane generates its own clocks
No clock present 10 MHz clock present PXI_CLK10, PXIe_CLK100 and
PXIe_SYNC100 all phase-locked to Rear
Chassis Panel—10 MHz REF IN
10 MHz clock present No clock present PXI_CLK10, PXIe_CLK100 and
PXIe_SYNC100 all phase-locked to
System Timing Slot— PXI_CLK10_IN
10 MHz clock present 10 MHz clock present PXI_CLK10, PXIe_CLK100 and
PXIe_SYNC100 all phase-locked to
System Timing Slot—PXI_CLK10__IN
A copy of the backplane’s PXI_CLK10 is exported to the 10 MHz REF
OUT connector on the rear of the chassis. This clock is driven by an
independent buffer. Refer to Appendix A, Specifications, for the
specification information for the 10 MHz REF OUT signal on the rear
panel of the chassis.
© National Instruments Corporation 1-13 NI PXIe-1065 User Manual
Chapter 1 Getting Started
PXIe_SYNC_CTRL
PXIe_SYNC100 is by default a 10 ns pulse synchronous to PXI_CLK10.
The frequency of PXIe_SYNC100 is 10/n MHz, where n is a positive
integer. The default for n is 1, giving PXIe_SYNC100 a 100 ns period.
However, the backplane allows n to be programmed to other integers. For
instance, setting n = 3 gives a PXIe_SYNC100 with a 300ns period while
still maintaining its phase relationship to PXI_CLK10. The value for n may
be set to any positive integer from 1 to 255.
The system timing slot has a control pin for PXIe_SYNC100 called
PXIe_SYNC_CTRL for use when n > 1. Refer to Table B-7, XP3
Connector Pinout for the System Timing Slot, for system timing slot pinout.
Refer to Appendix A, Specifications, for the PXIe_SYNC_CTRL input
specifications.
By default, a high-level detected by the backplane on the
PXIe_SYNC_CTRL pin causes a synchronous restart for the
PXIe_SYNC100 signal. On the next PXI_CLK10 edge the
PXIe_SYNC100 signal will restart. This will allow several chassis to have
their PXIe_SYNC100 in phase with each other. Refer to Figure 1-7 for
timing details with this method.
PXI_CLK10
PXIe_SYNC_CTRL
PXIe_SYNC100
SYNC100 Divider
Restarted Here
Figure 1-7. PXIe_SYNC100 at 3.33 MHz Using PXIe_SYNC_CTRL as Restart
NI PXIe-1065 User Manual 1-14 ni.com
Installation and Configuration
This chapter describes how to prepare and operate the NI PXIe-1065
chassis.
Before connecting the chassis to a power source, read this chapter and
the Read Me First: Safety and Radio-Frequency Interference document
included with your kit.
Safety Information
Caution Before undertaking any troubleshooting, maintenance, or exploratory procedure,
carefully read the following caution notices.
This equipment contains voltage hazardous to human life and safety, and
is capable of inflicting personal injury.
• Chassis Grounding—The chassis requires a connection from the
premise wire safety ground to the chassis ground. The earth safety
ground must be connected during use of this equipment to minimize
shock hazards. Refer to the Connecting Safety Ground section for
instructions on connecting safety ground.
• Live Circuits—Operating personnel and service personnel must not
remove protective covers when operating or servicing the chassis.
Adjustments and service to internal components must be undertaken
by qualified service technicians. During service of this product,
the mains connector to the premise wiring must be disconnected.
Dangerous voltages may be present under certain conditions;
use extreme caution.
• Explosive Atmosphere—Do not operate the chassis in conditions
where flammable gases are present. Under such conditions, this
equipment is unsafe and may ignite the gases or gas fumes.
2
© National Instruments Corporation 2-1 NI PXIe-1065 User Manual
Chapter 2 Installation and Configuration
• Part Replacement—Only service this equipment with parts that are
exact replacements, both electrically and mechanically. Contact
National Instruments for replacement part information. Installation of
parts with those that are not direct replacements may cause harm to
personnel operating the chassis. Furthermore, damage or fire may
occur if replacement parts are unsuitable.
• Modification—Do not modify any part of the chassis from its original
condition. Unsuitable modifications may result in safety hazards.
Chassis Cooling Considerations
The NI PXIe-1065 chassis is designed to operate on a bench or in an
instrument rack. Regardless of the configuration you must provide the
cooling clearances as outlined in the following sections.
Providing Adequate Clearance
The primary cooling exhaust vent for the NI PXIe-1065 is on the top of the
chassis. The primary intake vent is on the rear of the chassis. The secondary
intake and exhaust vents are located along the sides of the chassis.
Adequate clearance between the chassis and surrounding equipment or
blockages must be maintained to ensure proper cooling of the chassis
power supply as well as the modules plugged into the chassis. These
clearances are outlined in Figure 2-1. The vent locations for the
NI PXIe-1065 chassis are shown in Figure 2-2. Failure to provide these
clearances may result in thermal-related failures in the chassis or modules.
NI PXIe-1065 User Manual 2-2 ni.com
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