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Contents
About This Manual
Related Documentation .................................................................................................... vii
Connecting to Power Source..................................................................................... 3-4
Installing Replacement Fan Assemblies ........................................................................... 3-5
Replacing the PXI Module Fan Assembly ...............................................................3-5
Replacing the Side Fan Assembly ............................................................................ 3-7
Appendix A
Pinouts
Appendix B
NI Services
Glossary
Index
vi | ni.com
About This Manual
The PXIe-1095 Series User Manual describes the features of the PXIe-1095 chassis and contains
information about configuring the chassis, installing the modules, and operating the chassis.
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
This chapter describes the key features of the PXIe-1095 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 PXIe-1095 chassis kit contains the following items:
PXIe-1095 chassis
Filler panels
PXIe-1095 Safety, Environmental, and Regulatory Information
Software media with PXI Platform Services 17.3 or newer
Chassis number labels
Note You will also need an AC power cable, sold separately. Refer to Table 1-1 for
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.
Key Features
The PXIe-1095 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 PXIe-1095 chassis
fully complies with the PXI-5 PXI Express Hardware Specification, offering advanced timing
and synchronization features.
The key features of the PXIe-1095 chassis include the following:
High Performance for Instrumentation Requirements
•Up to 8 GB/s (single direction) per PXI Express slot dedicated bandwidth
(x8 Gen-3 PCI Express).
•58 W per slot cooling meets increased PXI Express cooling requirements
•Low-jitter internal 10 MHz reference clock for PXI/PXI Express slots with ± 25 ppm
stability
•Low-jitter internal 100 MHz reference clock for PXI Express slots with ± 25 ppm stability
•Quiet operation for 0 to 30 °C at 37.7 dBA
•Variable speed fan controller optimizes cooling and acoustic emissions
•Complies with PXI and CompactPCI Specifications
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PXIe-1095 User Manual
High Reliability
•0 to 55 °C extended temperature range
•Power supply, temperature, and fan monitoring
•Field replaceable fans
•Dual redundant, hot-swappable power supplies
Multi-Chassis Support
•PXI Express System Timing Slot for tight synchronization across multiple chassis
•Switchless CLK10 routing
Optional Features
•Timing and synchronization upgrade
•Front and rear rack-mount kits
•Replacement power supply
•EMC filler panels
•Slot blockers for improved cooling performance
•Factory installation services
•Replacement fan kit
Chassis Description
Figures 1-1 and 1-2 show the key features of the PXIe-1095 chassis front and back panels.
Figure 1-1 shows the front view of the chassis. Figure 1-2 shows the rear view of the chassis.
Refer to Figure 2-2, PXIe-1095 Chassis Vents, for chassis vent locations.
7 PXI Express System Controller Slot
8 Front Panel LEDs
9 Power Inhibit Switch
10 DIP Switch
11 Chassis Carry Handle
5
6
4
3
3
1 Timing and Synchronization Upgrade
2 Rear Panel Power Supply LED
3 Power Supply
1-4 | ni.com
4 Universal AC Input
5 Chassis Protective Earth Terminal
6 Fan Module
5
6
PXIe-1095 User Manual
Optional Equipment
Contact National Instruments to order the following options for the PXIe-1095 chassis.
Timing and Synchronization
An optional timing and synchronization accessory available from National Instruments provides
trigger routing capability, higher accuracy CLK10/CLK100, connectors for 10 MHz reference
clock input and output, and remote chassis monitoring and inhibit control.
EMC Filler Panels
EMC filler panel kits are available from National Instruments.
Slot Blockers
PXI Slot Blocker kits are available from National Instruments for improved thermal
performance when all slots are not used.
Replacement Power Supply
Replacement power supply kits are available from National Instruments. You easily can install
replacement power supplies without powering off the system.
Replacement Fan Kit
A fan kit is available from National Instruments, includes both side and PXI module fan assemblies.
Rack Mount Kits
Rack mounting kits are available from National Instruments that can accommodate a variety of
rack depths.
PXIe-1095 Backplane Overview
This section provides an overview of the backplane features for the PXIe-1095 chassis.
Interoperability with CompactPCI
The design of the PXIe-1095 chassis provides you the flexibility to use the following devices in
a single PXI Express chassis:
•PXI Express compatible products
•CompactPCI Express compatible 2-Link system controller products
The system controller slot is Slot 1 of the chassis and is a 2-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 connects the system slot to two PCI Express switches using a Gen-3 x8 and a
Gen-3 x16 PCI Express link. These switches distribute PCI Express connections to the
peripheral slots and to a PCI Express-to-PCI bridge to provide a PCI bus to the hybrid peripheral
slots. Refer to Figure 1-3 for an overview of the PXIe-1095 architecture.
System slot link 1 is a Gen-3 x8 PCI Express link to PCI Express switch 1, providing a nominal
bandwidth of 8 GB/s (single direction) between the system controller and PCI Express switch 1.
PXI Express peripheral slots 2-10 are connected to PCI Express switch 1 with Gen-3 x8
PCI Express links and are downstream of system slot link 1. The PCI Express-to-PCI bridge is
connected to PCI Express switch 1 and provides a 32-bit, 33 MHz PCI bus for hybrid peripheral
slots 7, 8, 9, 11, and 12. PCI Express switch 1 also is connected to PCI Express switch 2 with a
Gen-3 x8 PCI Express link for advanced backplane configurations.
System slot link 2 is a Gen-3 x16 PCI Express link to PCI Express switch 2, providing a nominal
bandwidth of 16 GB/s (single direction) between the system controller slot and PCI Express
switch 2. PXI Express peripheral slots 11-18 are connected to PCI Express switch 2 with Gen-3
x8 PCI Express links and are downstream of system slot link 2.
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.
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 chassis Inhibit Mode must be set to Default mode for the system
controller to control the power supply. Refer to the Inhibit Mode section of Chapter 2,
Installation and Configuration, for details about configuring Inhibit Mode.
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PXIe-1095 User Manual
Hybrid Peripheral Slots
The chassis provides five (5) hybrid peripheral slots as defined by the PXI-5 PXI Express
Hardware Specification: slots 7, 8, 9, 11, and 12. A hybrid peripheral slot can accept the
following peripheral modules:
•A PXI Express peripheral with x8, x4, or x1 PCI Express link through a switch to the
system slot. Each PXI Express peripheral slot can link up to a Gen-3 x8 PCI Express,
providing a maximum nominal single-direction bandwidth of 8 GB/s.
•A CompactPCI Express Type-2 Peripheral with x8, x4, or x1 PCI Express link through a
switch to the system slot.
•A hybrid-compatible PXI Peripheral module that has been modified by 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.
•A CompactPCI 32-bit peripheral on 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 Express Peripheral Slots
There are eleven (11) PXI Express peripheral slots: slots 2 to 6 and 13 to 18. PXI Express
peripheral slots can accept the following peripheral modules:
•A PXI Express peripheral with x8, x4, or x1 PCI Express link to the system slot through a
PCIe switch. Each PXI Express peripheral slot can link up to a Gen-3 x8 PCI Express,
providing a maximum nominal single-direction bandwidth of 8 GB/s.
•A CompactPCI Express Type-2 Peripheral with x8, x4, or x1 PCI Express link to the system
slot through a PCIe switch.
The System Timing Slot is slot 10. The system timing slot will accept the following peripheral
modules:
•A PXI Express System Timing Module with x8, x4, or x1 PCI Express link to the system
slot through a PCI Express switch. Each PXI Express peripheral or hybrid peripheral slot
can link up to a Gen-3 x8 PCI Express, providing a maximum nominal single-direction
bandwidth of 8 GB/s.
•A PXI Express Peripheral with x8, x4, or x1 PCI Express link to the system slot through a
PCI Express switch.
•A CompactPCI Express Type-2 Peripheral with x8, x4, or x1 PCI Express link to the system
slot through a PCI Express 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 1-4. 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 1-4 for details.
The system timing slot has a pin (PXI_CLK10_IN) through which a system timing module may
source a 10 MHz clock to which the backplane will phase-lock. Refer to the System Reference Clock section for details.
Figure 1-4. PXI Express Star Connectivity Diagram
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PXIe-1095 User Manual
7H8H9
H
10
11H12
H
PXI Trigger Bus #2
PXI
Trigger
Bridge #2
PXI
Trigger
Bridge #1
1
23456
PXI Trigger Bus #1
131415161718
PXI Trigger Bus #3
Timing and
Synchronization
Upgrade
ExpansionTrigger Bus
PXI Local Bus
The PXI backplane local bus is a daisy-chained bus that connects each peripheral slot with
adjacent peripheral slots to the left and right.
The backplane routes PXI Local Bus 6 between all slots. The left local bus 6 from slot 1 is not
routed anywhere and the right local bus 6 from slot 18 is not routed anywhere.
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
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.
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 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
The PXIe-1095 chassis supplies PXI_CLK10, PXIe_CLK100, and PXIe_SYNC100
independently driven to each peripheral slot.
An independent buffer (having a source impedance matched to the backplane and a skew of less
than 250 ps between slots) drives PXI_CLK10 to each slot. 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 each peripheral slot. 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.
An independent buffer drives PXIe_SYNC100 to each peripheral slot. 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.
PXI_CLK10, PXIe_CLK100 and PXIe_SYNC100 have the default timing relationship
described in Figure 1-6.
Figure 1-6. System Reference Clock Default Behavior
0123 45678 90123 45678 90123 45678 9
PXIe_CLK100
PXI_CLK10
PXIe_SYNC100
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, or from an external SMA
connector on the rear of the chassis (Timing and Synchronization upgrade). Refer to Table A-8,
XP4 Connector Pinout for the System Timing Slot, for the pinout. When an external clock is
detected, 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
the PXIe-1095 Specifications for the specification information for an external clock provided on
the PXI_CLK10_IN pin of the system timing slot or rear panel SMA.
1-10 | ni.com
2
Installation and Configuration
This chapter describes how to prepare and operate the PXIe-1095 chassis.
Before connecting the chassis to a power source, read this chapter and the Read Me First: Safety and Electromagnetic Compatibility document included with your kit.
Safety Information
Caution Before undertaking any troubleshooting, maintenance, or exploratory
procedure, carefully read the following caution notices.
Protection equipment may be impaired if equipment is not used in the manner
specified.
This equipment contains voltage hazardous to human life and safety, and is capable of inflicting
personal injury.
Caution High leakage current present when operating dual power supplies at 400
to 440 Hz. Connect the chassis to earth ground before connecting to AC power.
•The facility installation shall provide a means for connection to protective earth; and
•Qualified personnel shall install a protective earthing conductor from the chassis
protective earth terminal (# 8 -32 SEMS screw) on the rear to the protective earth
wire in the facility.
Protective earth terminal wiring
Grounding wire2.1 mm2 (14 AWG)
Ring lug# 8
Protective earth terminal torque1.13 N
•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 the 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.
•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 PXIe-1095 Series chassis is designed to operate on a bench or in an instrument rack.
You must adhere to the cooling clearances as outlined in the following section.
Providing Adequate Clearance
The module and power supply exhaust vents for the PXIe-1095 are on the top of the chassis. The
module intake vents are on the rear of the chassis. There are also intake and exhaust vents located
along the sides of the chassis. The vent locations are shown in Figure 2-2, PXIe-1095 Chassis Vents.
Adequate clearance between the chassis and surrounding equipment, heat generating devices,
and air flow blockages must be maintained to ensure proper cooling. Minimum cooling
clearances are shown in Figure 2-1, PXIe-1095 Chassis Minimum Cooling Clearances.
For rack mount applications adequate forced air ventilation is required. For benchtop
applications additional cooling clearances may be required for optimal air flow and reduced hot
air recirculation to the air inlet fans.
Caution Failure to provide these clearances may result in undesired
thermal-related issues with the chassis or modules.
To aid in thermal health monitoring for either rack or benchtop use you can monitor the chassis
intake temperatures in Measurement & Automation Explorer (MAX) to ensure the temperatures
do not exceed the ratings in the Operating Environment section of the PXIe-1095 Specifications.
Additionally, many PXI modules provide temperature values you can monitor to ensure critical
temperatures are not exceeded. Increasing chassis clearances, ventilation, reducing external
ambient temperatures, and removing nearby heat sources are all options for improving overall
chassis thermal performance.
2-2 | ni.com
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