NI PXIe-1083 User manual

USER GUIDE
PXIe-1083
This document describes the features of the PXIe-1083 chassis and contains information about
configuring the chassis, installing the modules, and operating the chassis.
Contents
Related Documentation ............................................................................................................2
Getting Started.......................................................................................................................... 2
Unpacking......................................................................................................................... 2
What You Need to Get Started..........................................................................................2
Key Features..................................................................................................................... 3
Chassis Components......................................................................................................... 4
Optional Equipment.......................................................................................................... 5
PXIe-1083 Backplane Overview.............................................................................................. 6
Interoperability with CompactPCI.................................................................................... 6
MXI Interface....................................................................................................................6
Basic MXI-Express Thunderbolt Systems........................................................................6
Thunderbolt Bus Extension...............................................................................................7
Backwards Compatibility..................................................................................................7
Hybrid Peripheral Slots.....................................................................................................7
PXI Local Bus...................................................................................................................8
PXI Trigger Bus................................................................................................................ 9
System Reference Clock................................................................................................... 9
Installation and Configuration................................................................................................ 10
Safety Information.......................................................................................................... 10
Chassis Cooling Considerations......................................................................................11
Rack Mounting................................................................................................................14
Connecting the Safety Ground........................................................................................15
Connecting to a Power Source........................................................................................ 15
Cabling............................................................................................................................ 16
Powering On/Off the MXI-Express Thunderbolt System...............................................16
Installing Peripheral Modules......................................................................................... 17
LED Indicators................................................................................................................18
DIP Switches...................................................................................................................19
Inhibit Mode....................................................................................................................20
Fan Mode........................................................................................................................ 21
PXI Express System Configuration with MAX..............................................................21
Using System Configuration and Initialization Files......................................................25

Maintenance............................................................................................................................ 25
Service Interval............................................................................................................... 25
Preparation...................................................................................................................... 25
Cleaning.......................................................................................................................... 26
Worldwide Support and Services............................................................................................ 26
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 2.0, PCI Special Interest Group
•PXI-5 PXI Express Hardware Specification, Revision 2.0, PXI Systems Alliance
Getting Started
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-1083 chassis kit contains the following items:
• PXIe-1083 chassis
• Filler panels
•PXIe-1083 Safety, Environmental, and Regulatory Information
•Read Me First: Safety and Electromagnetic Compatibility
• Software media with PXI Platform Services 20.0 or newer
• Chassis number labels
Note You will also need an AC power cable, sold separately. Refer to the following
table for more information about AC power cables.
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Table 1. AC Power Cables
Power Cable Reference Standards
Standard 120 V (USA) ANSI C73.11/NEMA 5-15-P
Switzerland 220 V SEV 6534-2
Australia 240 V AS C112
Universal Euro 230 V CEE (7), II, IV, VII
United Kingdom 230 V BS 1363
Japan 100 V JIS 8303
If you are missing any of the items, or if you have the incorrect AC power cable, contact NI.
Key Features
The PXIe-1083 chassis combines a high-performance 5-slot PXI Express backplane with a
power supply and a structural design that has been optimized for maximum usability in a wide
range of applications. The PXIe-1083 chassis fully complies with the PXI-5 PXI Express
Hardware Specification.
The key features of the PXIe-1083 chassis include the following:
High Performance for Instrumentation Requirements
• Two integrated Thunderbolt 3 MXI-Express ports
• Up to 500 MB/s (single direction) per PXI Express slot dedicated bandwidth (x1 Gen-2
PCI Express)
• 58 W per slot cooling meets increased PXI Express cooling requirements; refer to the
PXIe-1083 Specifications for more details
• 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 °C to 30 °C at 33.7 dBA
• Variable speed fan controller optimizes cooling and acoustic emissions
• Complies with PXI and CompactPCI specifications
High Reliability
• 0 °C to 50 °C temperature range
• Power supply, temperature, and fan monitoring
• Field replaceable fans
PXIe-1083 User Guide | © National Instruments | 3

Optional Features
• Front and rear rack-mount kits
• EMC filler panels
• Slot blockers for improved cooling performance
• Factory installation services
• Handle and rubber feet kit
• Fan replacement kit
Chassis Components
The following figures show key features of the PXIe-1083 chassis front and back panels.
Figure 1. Front View of the PXIe-1083
PXIe-1083
7
8
4
65
3
1
LINK
HHH H H
23456
2
1. Thunderbolt 3 MXI-Express Ports
2. LINK LED
3. Backplane Connectors
4. PXI Express Hybrid Peripheral Slots (5x)
5. Power Inhibit Switch
6. Removable Feet
7. Status LED
8. Power Supply Airflow Intake Vents
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Figure 2. Rear View of the PXIe-1083
3
2
1
5
4
100-240 VAC
50/60 Hz
6-3 A
1. Rear Exhaust Vent
2. Universal AC Input
3. Power Supply Fan Exhaust
4. Chassis Grounding Terminal
5. Kensington Slot
Optional Equipment
Contact NI to order the following options for the PXIe-1083 chassis.
EMC Filler Panels
EMC filler panel kits are available from NI.
Slot Blockers
PXI Slot Blocker kits are available from NI for improved thermal performance when all slots
are not used.
Handle and Feet Kit
An optional side handle and rubber feet kit is available from NI to provide portability.
Rack Mount Kits
Rack mounting kits are available from NI that can accommodate a variety of rack depths.
Replaceable Fan Kit
A fan kit is available from NI.
PXIe-1083 User Guide | © National Instruments | 5

PXIe-1083 Backplane Overview
Interoperability with CompactPCI
The design of the PXIe-1083 provides you the flexibility to use the following devices in a
single PXI Express chassis:
• PXI Express compatible products
• CompactPCI Express compatible Type-2 peripheral products
• PXI peripheral products modified to fit in a hybrid slot
• Standard CompactPCI peripheral products modified to fit in a hybrid slot
MXI Interface
The PXIe-1083 chassis has a built-in Intel Thunderbolt 3 interface accessible through two
Thunderbolt 3 ports on the front of the chassis. This enables control of the PXIe-1083 from a
host PC that includes a Thunderbolt 3 port and is running a native (nonvirtualized) operating
system that supports Thunderbolt connectivity.
Note The PXIe-1083 chassis does not include a slot 1; the Thunderbolt 3 ports
replace this slot.
Thunderbolt technology is transparent to device drivers, so no additional software is needed
for CompactPCI Express-level support for PXI Express devices in connected chassis.
Note For full PXI/PXI Express functionality such as chassis and controller
identification, trigger routing, and slot detection, install the latest version of PXI
Platform Services. This software is included with your kit; you also can find it at
ni.com/downloads by searching for PXI Platform Services.
The link between the PC and the chassis is a Thunderbolt 3 link. This link is a dual-simplex
communication channel comprised of differentially driven signal pairs. The link can transmit
at a rate of up to 40 Gbps in each direction simultaneously.
Basic MXI-Express Thunderbolt Systems
The simplest MXI-Express Thunderbolt system consists of a PC connected to a PXIe-1083 in
the controller slot of a PXI Express chassis, as shown in the following figure.
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Figure 3. Example of a Basic MXI-Express Thunderbolt Link Topology
Thunderbolt Bus Extension
You can daisy-chain from a PXIe-1083 controlled by a laptop to an additional Thunderbolt 3
compatible device. The following figure shows how you can use a PXIe-1083 to connect
multiple Thunderbolt 3 compatible devices to a PC in a daisy-chain topology.
Figure 4. Example of a Daisy-Chain Thunderbolt Link Topology
Backwards Compatibility
NI recommends connecting the PXIe-1083 to a Thunderbolt 3 port on the host PC using a
Thunderbolt 3 cable. Because Thunderbolt 3 is backwards-compatible with previous
Thunderbolt generations, it may be possible to use adapters to establish connections with host
PCs or devices with previous-generation Thunderbolt ports. Data throughput performance may
vary between Thunderbolt generations.
Hybrid Peripheral Slots
The chassis provides five (5) hybrid peripheral slots as defined by the PXI-5 PXI Express
Hardware Specification: slots 2 through 6. 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
Thunderbolt 3 controller (and host PC). Each PXI Express peripheral slot can link up to a
PXIe-1083 User Guide | © National Instruments | 7

Gen-2 x1 PCI Express, providing a maximum nominal single-direction bandwidth of 500
MB/s.
• A CompactPCI Express Type-2 Peripheral with x8, x4, or x1 PCI Express link to the host
PC through a PCI Express switch and Thunderbolt 3 controller.
• A hybrid-compatible PXI Peripheral module 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 connects to only PXI Local Bus 6 left
and right.
Figure 5. PXIe-1083 PCI Express Backplane Diagram
Port 5 Port 1Port 7Port 9
Port 12 Port 14
Port 0
PCIe Switch
6H 5H 4H
3H
2H
32-bit, 33 MHz PCI
Thunderbolt 3
Controller
(to Host)
PCIe-PCI
Bridge
(Upstream)
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 adjacent PXI slots. The left local bus 6 from
slot 2 and right local bus 6 from slot 6 are not routed anywhere.
The backplane routes PXI Local Bus between all slots. 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.
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PXI Trigger Bus
All slots 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. Modules can pass triggers to one another on the lines, 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
NI 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.
Figure 6. PXI Trigger Bus Connectivity Diagram
H H H H
2 3 4 56
PXI
Trigger
Bridge #1
PXI Trigger Bus #1
H
System Reference Clock
The PXIe-1083 chassis supplies PXI_CLK10, PXIe_CLK100 and PXIe_SYNC100 to every
peripheral slot with an independent driver for each signal.
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 peripheral 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.
PXIe-1083 User Guide | © National Instruments | 9

PXI_CLK10, PXIe_CLK100 and PXIe_SYNC100 have the default timing relationship
described in the following figure.
Figure 7. System Reference Clock Default Behavior
PXIe_CLK100
PXI_CLK10
PXIe_SYNC100
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
Installation and Configuration
The following section describes how to prepare and operate the PXIe-1083 chassis.
Before connecting the chassis to a power source, read this section 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.
Caution Protection 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.
• Protective Earth—The facility installation must provide a means for connection to
protective earth.
• 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.
• Part Replacement—Only service this equipment with parts that are exact replacements,
both electrically and mechanically. Contact NI for replacement part information.
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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-1083 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 intake vents are located on the front, left side, and bottom of the
chassis. The module and power supply exhaust vents for the PXIe-1083 are located on the top,
side, and rear of the chassis.
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 the following figure. 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.
PXIe-1083 User Guide | © National Instruments | 11

Figure 8. PXIe-1083 Cooling Clearances
44.45 mm
(1.75 in.)
44.45 mm
(1.75 in.)
44.45 mm
(1.75 in.)
44.45 mm
(1.75 in.)
Rack
25.4 mm
(1.00 in.)
Desktop
44.45 mm
(1.75 in.)
44.45 mm
(1.75 in.)
PXIe-1083
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-1083
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.
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Figure 9. PXIe-1083 Vents
2
1
3
5
4
6
7
100-240 VAC
50/60 Hz
6-3 A
PXIe-1083
1. Air Exhaust Vent
2. Air Exhaust Vent
3. Air Intake
4. Air Exhaust Vent
5. Air Exhaust Vent
6. Air Intake
7. Air Intake
Note The side exhaust vent (not shown) is located on the left side of the chassis.
Chassis Ambient Temperature Definition
The chassis fan control system uses ambient intake air temperatures for controlling fan speeds
when in Auto mode. These temperatures may be higher than ambient room temperature
depending on surrounding equipment and/or blockages. Ensure ambient intake temperatures
do not exceed the ratings in the Operating Environment section of the PXIe-1083
Specifications. The module ambient intake temperatures can be monitored in NI Measurement
& Automation Explorer (MAX).
PXIe-1083 User Guide | © National Instruments | 13

Setting Fan Speed
The PXIe-1083 chassis supports multiple fan operating modes. Refer to the Fan Mode section
for more information.
Installing Filler Panels
To maintain proper module cooling performance, install filler panels (provided with the
chassis) in unused or empty slots. Secure with the captive mounting screws provided.
Installing Slot Blockers
The cooling performance of the chassis can be improved by installing optional slot blockers.
Refer to the NI website at ni.com/info and enter the Info Code slotblocker for more
information about slot blockers.
Rack Mounting
Rack mount applications require optional rack mount kits available from NI. Refer to the
instructions supplied with the rack mount kits to install your PXIe-1083 chassis in an
instrument rack.
Note You may want to remove the feet from the PXIe-1083 chassis when rack
mounting.
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Figure 10. PXIe-1083 Rack Mount Kit Components
PXIe-1083
Connecting the Safety Ground
Caution The PXIe-1083 chassis are designed with a three-position IEC 60320 C14
inlet for the U.S. that connects the ground line to the chassis ground. For proper
grounding, a suitable cordset must be used to connect this inlet to an appropriate
earth safety ground.
If your power outlet does not have an appropriate ground connection, you must connect the
premise safety ground to the chassis grounding screw located on the rear panel. To connect the
safety ground, complete the following steps:
1. Connect a 16 AWG (1.3 mm) wire to the chassis grounding screw (M4 SEMS) using a
grounding lug. The wire must have green insulation with a yellow stripe or must be
noninsulated (bare).
2. Attach the opposite end of the wire to permanent earth ground using toothed washers or a
toothed lug.
Connecting to a Power Source
Caution Do not install modules prior to performing the following power-on test.
To completely remove power, you must disconnect the AC power cable.
Attach input power through the rear AC inlet using the appropriate AC power cable supplied.
PXIe-1083 User Guide | © National Instruments | 15

The Power Inhibit switch allows you to power on the chassis or place it in standby mode. With
an empty chassis in Default Mode, press down the Power Inhibit switch and hold it down for
one second. Observe that all fans become operational, the status LED is green, and the LINK
LED is solid amber (without a host PC). Pressing and holding the Power Inhibit switch again
for one second will return the chassis to standby.
Cabling
The following table shows the various MXI-Express Thunderbolt cables available from NI.
Table 2. NI MXI-Express Thunderbolt Cables
Description Cable Length (Meters) Part Number
MXI-Express Thunderbolt active cable 2 m 785607-02
MXI-Express Thunderbolt passive cable 2 m 785608-02
MXI-Express Thunderbolt passive cable 0.8 m 787580-0R8
Connect the MXI-Express Thunderbolt cable to the host PC Thunderbolt port and PXIe-1083.
The cables have no polarity, so you can connect either end to either Thunderbolt port. The
cable plugs are reversible, and there is no defined upstream or downstream port on the
PXIe-1083.
Caution Although Thunderbolt is a hotpluggable technology, avoid removing the
cable after the system is powered on. Doing so can hang or cause errors in
applications communicating with devices behind MXI-Express Thunderbolt. If a
cable becomes unplugged, plug it back into the system.
For more information about MXI-Express Thunderbolt cabling, go to ni.com/thunderbolt.
Powering On/Off the MXI-Express Thunderbolt System
This chassis includes a feature to follow host power based on the Thunderbolt connection.
Refer to the table below to determine how to power on or off the chassis based on the
connection to the host.
Table 3. Chassis Inhibit Mode: Default (Refer to Inhibit Mode for More Information)
PXIe-1083 Power Thunderbolt
Connection to Host
Actions Required
To power the PXIe-1083 on Not present Press the power button
Hot plug a Thunderbolt cable with a
powered on host on the other end
Present Power on the host
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Table 3. Chassis Inhibit Mode: Default (Refer to Inhibit Mode for More
Information) (Continued)
PXIe-1083 Power Thunderbolt
Connection to Host
Actions Required
To power the PXIe-1083 off Not present Press the power button
Present Hot unplug the Thunderbolt cable
Power off the host
Press the power button > 4 s (this
causes a forced shutdown)
Table 4. Chassis Inhibit Mode: Manual (Refer to Inhibit Mode for More Information)
PXIe-1083 Power Actions Required
To power the PXIe-1083 on AC on
To power the PXIe-1083 off AC off
Observe the PXIe-1083 LED status where applicable. A properly connected and powered up
system should report a valid link and power status once the host PC is powered on. Refer to
LED Indicators for more information.
Installing Peripheral Modules
This section contains general installation instructions for installing a peripheral module in a
PXIe-1083 chassis. Refer to your peripheral module user manual for specific instructions and
warnings. To install a module, complete the following steps:
1. Connect the AC power source to the PXI Express chassis before installing the module.
The AC power cord grounds the chassis and protects it from electrical damage while you
install the module.
2. Ensure that the chassis is powered off.
3. Install a module into a chassis slot by first placing the module card PCB into the front of
the card guides (top and bottom), as shown in the following figure. Slide the module to
the rear of the chassis, making sure that the injector/ejector handle is pushed down, as
shown in the following figure.
4. When you begin to feel resistance, push up on the injector/ejector handle to fully seat the
module into the chassis frame. Secure the module front panel to the chassis using the
module front-panel mounting screws.
PXIe-1083 User Guide | © National Instruments | 17

Figure 11. Installing PXI, PXI Express, or CompactPCI Peripheral Modules
3
2
1
4
5
PXIe-1083
1. Injector/Ejector Handle
2. PXI Peripheral Module
3. Peripheral Module Front Panel Mounting Screws
(2x)
4. PXI Express Chassis
5. Injector/Ejector Rail
LED Indicators
LINK LED
The tri-color LINK LED on the PXIe-1083 front panel gives status information about the
power supply and link state, as the following table describes.
Table 5. LINK LED Colors
LED Color Meaning
LINK
Off Power is off.
Blinking red Power is out of spec.
Solid amber Power is within spec; no link to chassis.
Solid green Power is within spec; link established.
Status LED
The following figure shows the front panel Status LED. The following table describes the
Status LED states.
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Figure 12. Status LED
Table 6. Front Panel Status LED States
LED State Description
Status LED
Off Chassis is powered off.
Steady green Chassis is powered on, and operating normally.
Steady red Indicates temperature is out of range, or an internal chassis fault
has occurred.
DIP Switches
Use the DIP switches on the daughterboard to control chassis behavior. Refer to the following
figure for the DIP switches location.
Figure 13. PXIe-1083 Dip Switch Location
PXIe-1083
DIP switch #1 (on the left) controls the chassis fan mode. Set this switch in the off (down)
position to select Auto mode. Set this switch in the on (up) position to select High mode.
DIP switch #2 (on the right) controls the chassis Inhibit Mode. Set this switch in the off
(down) position to select Default mode. Set this switch in the on (up) position to select Manual
mode.
PXIe-1083 User Guide | © National Instruments | 19

Figure 14. Backplane DIP Switches
12
1. Switch #1 (Fan)
2. Switch #2 (PWR)
Table 7. DIP Switch States
Location Switch State Description
1 FAN Off (Down) Set chassis fan mode to Auto. Refer to the Fan Mode
section for information.
On (Up) Set chassis fan mode to High.
2 PWR Off (Down) Set chassis inhibit mode to Default. Refer to the Inhibit
Mode section for information
On (Up) Set chassis inhibit mode to Manual.
Inhibit Mode
The PXIe-1083 chassis supports operation in two inhibit modes. Use Default mode when you
desire normal power inhibit button functionality. In Default mode, when no host is connected
to the chassis Thunderbolt port, you can press the power inhibit button to power on the chassis.
When the host is connected to the chassis via a Thunderbolt cable, the chassis follows the
host's power states.
In Manual mode, the chassis powers up when you apply AC power and shuts down when you
remove AC power.
Inhibit Mode Selection
You can select the PXIe-1083 chassis Inhibit Mode using a DIP switch on the daughterboard.
Refer to the DIP Switches section for the DIP switch location and more information about DIP
switch settings.
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