999 HP-AgilentKeysight M9018A
Keysight Technologies
M9018A PXIe Chassis
18-slots, 3U, 8GB/s
Data Sheet
Product Description
The Keysight Technologies, Inc. M9018A PXIe chassis
delivers the ultimate in flexibility, compatibility, and
performance. With 16 PXIe hybrid slots, it allows the
system designer to mix and match the number and location
of PXIe and hybrid-compatible modules. The advanced
PCIe® switch fabric can operate up to Gen 2 speeds, and
is compatible with most PXIe controllers. The innovative
cooling design allows the chassis to fit into 4U of rack
space, in most cases. When combined with the latest
1U rack-mounted computer, you can build a powerful
system using only 5U of rack space.
–– Aerospace and defense
–– Communications
–– Electronics test
–– Semiconductor testing
–– 16 PXIe hybrid slots, 1 PXIe timing slot, and 1 PXIe system slot
–– 4U chassis with innovative cooling design
–– High data bandwidth (maximum 8 GB/s to system
slot and 4 GB/s slot-to-slot)
–– Advanced Gen 2 PCIe switching with four x8 links
and 12 x 4 links to the hybrid slots
–– Configurable PXIe system slot
Customer Values
–– All slots are hybrid-compatible, providing complete
flexibility in module placement
–– Advanced PCIe switching enables high-performance applications, and ensures compatibility with most embedded
–– The innovative cooling design saves rack space and lowers
maintenance costs
–– Up to 867 watts of power supports most application
Backplane configuration
The Keysight M9018A chassis provides 16 hybrid-compatible
slots for the ultimate in flexibility and compatibility. This
capability allows the system designer to mix and match the
number and location of PXIe and hybrid-compatible modules.
The hybrid slots are broken into two segments, each serviced
by its own PCIe to PCI bridge.
Figure 1. 18-slot PXIe backplane
Hardware Platform
The hybrid slots are organized into three trigger bus segments
with configurable interconnections between segments.
The M9018A chassis is fully compliant with the PXI Express
specification. Each hybrid-compatible slot accepts PXIe,
hybrid-compatible, and 32-bit cPCI/PXI-1 modules (without
J2 connector). PXI-1 modules with both J1 and J2 connectors
must be converted to hybrid format to be compatible. The
PXIe system timing slot accepts either a PXIe timing module
or a PXIe peripheral module. The system slot accepts a PXIe
controller up to 4 slots wide.
The system slot has a flexible link configuration that can be
configured for most PXIe controllers, whether embedded or
external. Both 2-link (2x8) and 4-link (4x4) configurations are
available. A 2-link configuration optimized for the M9021A is
also provided (a 2x8, 2-link configuration, with link 2 inactive).
Figure 2. M9018A backplane block diagram
Advanced PCIe Switching
The Keysight M9018A contains an advanced PCIe switch
fabric that operates at up to Gen 2 speeds. Four of the PXIe
peripheral slots have a x8 PCIe link providing a maximum
data bandwidth of 4 GB/s. The 12 remaining peripheral slots
have a x4 PCIe link providing a maximum data bandwidth of
2 GB/s. The system slot has a maximum data bandwidth of
8 GB/s when all 16 PCIe lanes are utilized.
The advanced switch fabric also allows for peer-to-peer
communications. Any peripheral slot can communicate with
any other peripheral slot without utilizing the system slot
PCIe links. The PCIe switches have a large crossbar capacity,
allowing flexible placement of peer-to-peer modules without
impacting data bandwidth.
Figure 3. Y1214A Air Inlet Kit
Innovative Cooling
Lower Maintenance Costs
The M9018A chassis has an innovative cooling design that
allows it to fit into 4U of rack space. This represents a 20
percent reduction in occupied rack space, considering most
PXI chassis require 5U or more for air-flow. This space can be
utilized for an external 1U controller via PCIe cable, resulting
in a system that requires no more rack space than other
chassis with an embedded PC controller.
The Keysight M9018A was designed to reduce maintenance
costs. The innovative air-flow design does not require air
filters to maintain. In addition, the power supply and fans can
be removed while the chassis is mounted in a rack, allowing
the chassis to be serviced, while keeping DUT cabling and
modules in place.
System Monitoring
The innovative cooling design uses auto-speed fans to expel
hot air out the back rather than the top. This allows other
instruments with bottom air intakes to be placed directly
above the chassis. In addition, cool air is pulled into the
chassis from multiple locations, including the front, sides, and
bottom of the chassis. Keysight-exclusive “air-inlet” modules
can also be used to supply more cool air from the front of
the chassis, so the air is directed to the other slots. These
features allow the system designer to decide how to best
cool the chassis, providing more design flexibility than other
PXIe chassis.
The Keysight M9018A has a complete set of system monitoring functions for power rail voltages, module exhaust temperatures, and fan speeds. For temperature measurements,
the chassis utilizes eight temperature sensors located on
the top of the backplane, in the path of the module exhaust.
Module exhaust temperatures and power rail voltages can be
monitored via a software API or the soft front panel interface.
A DB-9 connector is also available at the rear of the chassis
for remote inhibit and power rail monitoring.
The chassis has configurable alarms that can be monitored via
front panel LEDs, soft front panel interface, or software API.
Software Platform
Soft front panel interface
The M9018A chassis comes complete with IVI-COM, IVI-C,
and LabVIEW drivers. Windows XP, Windows Vista, and
Windows 7 operating systems are supported, and applications can be completed using a variety of software tools
including LabVIEW, LabWindows/CVI, MATLAB, VEE,
Visual Basic, VisualStudio.NET (C/C++, C#, VB.NET).
A soft front panel interface is provided to monitor and
control the PXIe chassis with the following functions:
–– Trigger configuration
–– Chassis fan speed, temperatures, and rail voltage monitoring
–– Alarms for fan speed, temperature, and rail voltage
–– Chassis information
Figure 4. Soft front panel
Technical Specifications
Chassis characteristics
Standards compliance
PXI-5 PXI Express hardware specification
PXI-1 hardware specification Rev 2.2
PICMG EXP.0 R1.0 specification
Module size
Total slots
Hybrid compatible slots
PXIe system slot
1 (with three system expansion slots)
PXIe timing slot
1 (also accepts PXIe module)
Module compatibility
PXIe, PXI-hybrid, PXI-1 (J1-only), and cPCI (J1-only)
444.4 mm W x 191.8 mm H x 466 mm D (with feet installed)
444.4 mm W x 177.8 mm H x 466 mm D (with feet removed)
4U x 1 rack width
Weight (without modules)
15.5 kg (34 lbs)
Power supply characteristics
AC input
Operating voltage/power (low-line)
Operating voltage/power (high-line)
100-120V, 1000 W (nominal)
220-240V, 1200 W (nominal)
Input frequency range
50/60 Hz
Overcurrent protection
Internal fuse in line
DC output power
Total DC power 1
220-240 Vac input
867.5 W
100-120 Vac input
717.5 W
1. Includes 5VAUX supply (7.5 W)
Technical Specifications
Power supply characteristics, continued
DC supplies (220-240 Vac input)
Maximum ripple and noise
(20 MHz BW)
+3.3 V
60 A 2
1.5% (pk-pk)
+5 V
58.8 A
1% (pk-pk)
+12 V
51.3 A
1% (pk-pk)
-12 V
4 A2
1% (pk-pk)
1.5 A
50 mV (pk-pk)
DC supplies (100-120 Vac input)
The maximum current from each supply rail is the same for both low-line and high-line inputs, however,
the total power supplied for all rails (except 5 VAUX) must not exceed 710 W on lowline (100-120 Vac input).
PXI Express backplane continuous current capacity
+3.3 V
+5 V
+12 V
–12 V
System controller slot 9 A
11 A
System timing/PXIe
PXIe hybrid slot
1. The total power supplied for all rails (except 5VAUX) must not exceed 860 W.
2. The total power supplied for 3.3V, 12 V, and –12 V rails must not exceed 616 W.
Chassis cooling and power dissipation characteristics
Slot airflow direction
Bottom of module to top of module
Chassis cooling intake
Bottom of front bezal, side panels, and bottom panel of chassis
Chassis cooling exhaust
Rear of chassis
Chassis cooling fans
Three 186 cfm fans on rear panel with HIGH/AUTO speed selector
Power dissipation, system slot
140 W max
Power dissipation, user slot
42 W max 1
Power dissipation, timing slot
42 W max 1
1. Maximum per slot power dissipation at 55° C with 15° C temperature rise; requires: a) that the chassis bottom not be blocked (1U rack space below the chassis or feet
extended), or b) two air inlet modules in slots 9, 10, or 11, and a slot blocker in empty controller slots. Module cooling can be impacted by each module's resistance to
air flow.
Technical Specifications
Clocks and triggers
10 MHz system clock (PXI_CLK10)
Maximum slot-to-slot skew
155 ps
25 ppm
Output amplitude (10 MHz REF Out BNC)
1 Vpk-pk ±20% square-wave into 50 Ω
2 Vpk-pk unloaded
Output impedance (10 MHz REF Out BNC)
50 Ω ±5 Ω
100 MHz system clock (PXIe_CLK100)
Maximum slot-to-slot skew
120 ps
25 ppm
External 10 MHz clock source input requirements
Frequency input
10 MHz ±100 PPM
Input signal (10 MHz REF In BNC)
100 mVPP to 5 VPP (square-wave or sine-wave)
Input impedance (10 MHz REF In BNC)
50 Ω ±5 Ω
Input signal (PXI timing slot PXI_CLK10_IN)
5 V or 3.3 V TTL signal
PXI star trigger
Maximum slot-to-slot skew
250 ps
PXI differential star triggers
Maximum slot-to-slot skew
150 ps
Maximum differential skew
25 ps
Environmental characteristics 1, 2
Operating and storage conditions
Type tested at 95%, +40˚C
0˚C to 55˚C
–40˚C to 70˚C
Up to 10,000 ft (3048m)
Up to 15,000 ft (4572m)
Operating random vibration Type-tested at 5 to 500 Hz, 0.21 g rms
Survival random vibration Type-tested at 5 to 500 Hz, 2.09 g rms
Acoustical emissions (referenced to 1pW)
Sound pressure level
Sound power
Auto fan (25˚C ambient)
High fan
53 dBA
69 dBA
59 dBA
77 dBA
1. Samples of this product have been type tested in accordance with the Keysight Environmental Test Manual and verified to be robust against the environmental stresses
of storage, transportation, and end-use; those stresses include, but are not limited to, temperature, humidity, shock, vibration, altitude, and power line conditions.
2. Test methods are aligned with IEC 60068-2 and levels are similar to MIL-PRF-28800F class 3.
3. At operator position.
Technical Specifications
Regulatory characteristics
German acoustic statement
Acoustic noise emission
LpA <70 dB
Operator position
Normal position
Per ISO 7779
LpA <70 dB
Am Arbeitsplatz
Normaler Betrieb
Nach DIN 45635 t.19
Complies with European EMC Directive 2004/108/EC
–– IEC/EN 61326-1
–– CISPR Pub 11 Group 1, Class A
–– ICES/NMB-001
This ISM device complies with Canadian ICES-001
Cet appareil ISM est conforme à la norme NMB-001 du Canada
M9018A Rack Mounting
The M9018A rack mount accessory kits provide system design flexibility. The following kits can be mix-and-matched to suit the
needs of a given application:
–– Y1215B Flush Mount Rack Kit: Complete kit including rack flanges, handles, and attachment hardware. Suspends the M9018A
chassis in a Keysight rack using only 4U of rack space. Rack rails may be needed in a non-Keysight rack.
–– Y1216A Recess Mount Rack Kit: Complete recess-mount kit including rack flanges, handles, and attachment hardware.
Recesses the M9018A chassis by 4 inches and suspends the chassis in a Keysight rack using only 4U of rack space. Rack
rails may be needed in a non-Keysight rack.
–– Y1217A Rack Mount Rail Kit: This optional kit provides additional stability to the M9018A when rack-mounted. When using
rails, the chassis will require 5U of rack space. Rails may not fit in a non-Keysight rack.
–– Y1218A Cable Tray Kit: Adds a 1U high cable tray to the M9018A chassis and includes cable tray, feet for using the chassis/
tray on a table, and attachment hardware.
Figure 6. M9018A chassis rack-mounted using the Y1216A,
Y1217A, and Y1218A.
Figure 5. M9018A chassis suspended in a rack using the Y1215B.
Note: Rack mounting the M9018A may require two people if rails are not used. Care must also be taken to ensure the M9018A
receives sufficient cooling air. See the chassis cooling characteristics in this data sheet for more details.
Recommended Configuration
Configure the Keysight M9018A PXIe chassis as follows:
–– Select a PXIe system module, PCIe cable interface, or
embedded controller (the Keysight M9021A and M9036A
are recommended)
–– If an external computer is being used, select an appropriate
PC interface card (the Keysight M9048A is recommended)
–– Select an appropriate cable to connect the computer
interface board to the chassis interface (the Y1202A is
recommended to connect the M9048A and M9021A)
Figure 8. Star configuration with M9036A Embedded Controller
and M9021A PCIe interface
–– Select accessories as required
Figure 9. Cascade configuration with External Controller and M9021A
PCIe interface
Figure 7. Configuration
PXIe chassis
Standard PXI filler panels, getting started guide,
drivers, and Keysight I/O libraries
Multi-Chassis Configuration
The M9021A can be used with the M9018A PXIe Chassis
to build multi-chassis systems. Up to four chassis can be
connected together depending on the controller and operating
system used. Many different topologies are possible including
cascade and star. Two examples are shown at right.
The M9502A/M9505A AXIe Chassis can be linked to a
M9018A PXIe Chassis in a star configuration or as the
last chassis in a cascade configuration. For more
detailed configuration information, see:
Slot blocker kit: 5 single-slot
PXI EMC filler panel kit: 5 single-slot
Air inlet module kit (includes controller slot
Flush mount rack kit
Recess mount rack kit
Rack mount rail kit
Cable tray kit
Related Products
PCIe cable interface: Gen 2, x8
Embedded PXIe PC controller
PCIe ExpressCard adapter: Gen 1
PCIe cable: x1 to x8, 2.0m (used with M9045B)
PCIe desktop PC adapter: Gen 2, x8
PCIe cable: x8, 2.0m (used with M9047A)
Definitions for Specifications
Specifications describe the warranted performance of
calibrated instruments that have been stored for a of minimum of 2 hours within the operating temperature range
0 to 55°C, unless otherwise stated, and after a 45 minute
warm-up period. Data represented in this document are
specifications unless other wise noted.
Characteristics describe product performance that is useful
in the application of the product, but that is not covered by
the product warranty. Characteristics are often referred to
as Typical or Nominal values.
–Typical describes characteristic performance, which
80% of the instruments will meet when operated over
a 20 to 30°C temperature range. Typical performance
is not warranted.
Supported operat- Microsoft Windows XP (32-bit),
ing systems
Microsoft Windows Vista (32/64-bit),
Microsoft Windows 7 (32/64-bit)
Standard compliant drivers
Supported application development environments (ADE)
VisualStudio (VB.NET, C#, C/C++), LabVIEW,
LabWindows/CVI, VEE
Keysight IO
Includes: VISA Libraries, Keysight Connection
Expert, IO Monitor
–Nominal describes representative performance that is
useful in the application of the product when operated
over a 20 to 30°C temperature range. Nominal perfor mance is not warranted.
Note: All graphs contain measured data from several units
at room temperature unless otherwise noted.
Warranty and Calibration
Advantage Services: Calibration and Warranty
Keysight Advantage Services is committed to your success throughout your equipment’s lifetime.
PXIe chassis: 18-slot, 3U, 8GB/s
Opt 900-932
Power cord options
Warranty 1
Standard warranty is 3 years
3 year return-to-Keysight warranty extended
to 5 years
1. Options not available in all countries.
12 | Keysight | M9018A PXIe Chassis - Data Sheet
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Web inside your test systems. Keysight is a founding member of the LXI
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rugged, PC-based high-performance measurement and automation system.
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warranty standard on all instruments, worldwide.
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For more information on Keysight
Technologies’ products, applications or
services, please contact your local Keysight
office. The complete list is available at:
United States
(877) 894 4414
55 11 3351 7010
001 800 254 2440
(800) 829 4444
Asia Pacific
Hong Kong
Other AP Countries
1 800 629 485
800 810 0189
800 938 693
1 800 112 929
0120 (421) 345
080 769 0800
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0800 047 866
(65) 6375 8100
Europe & Middle East
United Kingdom
0800 001122
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800 599100
+32 800 58580
0800 0233200
8800 5009286
0800 000154
0200 882255
0800 805353
Opt. 1 (DE)
Opt. 2 (FR)
Opt. 3 (IT)
0800 0260637
For other unlisted countries:
This information is subject to change without notice.
© Keysight Technologies, 2013–2014
Published in USA, August 4, 2014
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