Keysight Technologies USB Design and Test – A Better Way

Keysight Technologies USB Design and Test – A Better Way
Keysight Technologies
USB Design and Test – A Better Way
Brochure
02 | Keysight | USB Design and Test – A Better Way - Brochure
Testing for
Interoperability
The Universal Serial Bus (USB) was
first introduced in 1995. USB delivered
a new way to connect personal
computers and devices and allows
users to easily connect many different
types of devices and peripherals. As
a result USB has essentially replaced
aging serial and parallel ports as
the connection of choice for device
manufacturers and end users.
One of the biggest factors in the
incredible success of USB has been
the successful interoperability of
USB devices and hosts. Interoperable
products are an indirect result of
the compliance testing program
developed and maintained by the USBImplementers Forum (USB-IF).
The USB-IF publishes compliance
test specifications and has developed
a comprehensive set of compliance
tests that are used to verify quality
and conformance of USB designs.
If you can demonstrate that your
products meet these specifications
then your customers can be confident
that your products will work
with theirs.
Proving that your products comply
with the USB-IF specification requires
a test methodology that meets the
definitions contained within the
CTS (Compliance Test Specification)
published by the USB-IF.
Successful compliance testing
provides many benefits. Firstly, logo
certification - a product will only gain
accreditation to use the official USB
logos when proof is given that it meets
the Compliance Test Specification.
Secondly, interoperability - as a
product designer you cannot predict
nor control the user’s environment.
Products must be submitted to
a robust testing methodology in
order to minimize the potential for
interoperability problems when
connected to a real device in the
real world.
Figure 1. USB 3.0 systems can manage all four data rates concurrently
Finally, customer confidence - your
customers need to be assured that
the products you deliver will work in
their OEM environments. By testing to
a proven method with approved test
solutions you give your customers the
confidence that your products conform
to the CTS and will work effectively in
their designs.
Keysight Technologies, Inc. is
the world’s leading Test and
Measurement Company. Keysight’s
USB test solutions are fully approved
by the USB-IF and are used in
compliance workshops and by test
labs worldwide.
When you test your USB designs with
Keysight’s test solutions you have the
confidence that when your products
pass they meet the requirements
of the USB-IF Compliance Test
Specification.
Keysight gets involved,
you beneit
Keysight’s solutions for digital
applications are driven and supported
by Keysight experts that are involved
in the various international standard
committees. We call it the Keysight
Digital Test Standards Program.
Our experts are active in the Joint
Electronic Device Engineering
Council (JEDEC), PCI Special Interest
Group (PCI-SIG®), Video Electronics
Standards Association (VESA), Serial
ATA International Organization
(SATA-IO), USB-Implementers Forum
(USB-IF), Mobile Industry Processor
Interface (MIPI) Alliance, Ethernet
standards (IEEE 802.3), Optical
Internetworking Forum (OIF), and
many others. Our involvement in
these standards groups and their
related workshops, plugfests, and
seminars enables Keysight to bring
the right solutions to the market
when you need them.
03 | Keysight | USB Design and Test – A Better Way - Brochure
The USB Platform
Since the introduction of USB, the
USB-IF has continued to launch new
variants of the interface standard.
In 2000, the USB-IF announced
USB 2.0 to provide increased data
throughput for higher-bandwidth
devices such as video-conferencing
cameras and high-resolution
printers.
USB 2.0 provided the choice of three
data rates, Low speed at 1.5 Mb/s,
Full speed at 12 Mb/s and High
speed at 480 Mb/s.
A further development has seen
the introduction of Wireless
USB, allowing users to wirelessly
interconnect up to 127 devices.
Wireless USB delivers a bandwidth
of up to 480 Mb/s at 3 meters and
110 MB/s at 10 meter
Now a further enhancement to the
USB platform has been announced
with the release of SuperSpeed USB
3.0. USB 3.0 is backward compatible
with earlier versions and has been
designed to address the high
bandwidth transport requirements
of rich media and large digital
files. USB 3.0 provides a 10-fold
increase in the data transfer rates
compared with USB 2.0 with a data
rate specified up to 5 Gb/s and data
throughput greater than 200 MB/s.
The family of USB specifications,
USB 2.0, wireless USB and now
USB 3.0, meet the needs of
different applications and it is
anticipated that all will co-exist in
the market. Designers will choose
the specification to meet the
particular needs of their product.
Whatever choice is made a robust
test methodology is required to
ensure that the end product is
compliant to the relevant standards.
For designers of USB devices and
systems the successful completion
of the compliance test regime is
essential to ensure conformance to
the standards and interoperability.
Each variant of USB has its own
compliance test specification. A
number of the tests are common
between variants, however, as
the data rates increase then the
requirement for a more thorough
testing of high-speed effects
increase. RF effects need to be
considered when validating the
high-speed modes of USB 2.0 and
for USB 3.0.
Keysight Technologies offers a
portfolio of solutions for testing
USB, addressing all of the current
Keysight’s USB-IF approved test
solutions are used in compliance
workshops and by test labs all over
the world.
Keysight Technologies’
comprehensive portfolio of
test solutions addresses the
compliance testing needs of all
variants of USB. With Keysight’s
oscilloscopes, BERTs, network and
logic analyzers together with a range
of USB specific test applications
and fixtures you can quickly and
accurately test your USB design to
ensure compliance.
When you select Keysight as your
test partner you can be assured
that your products will be tested
to the latest standards and on the
same equipment as used by your
test lab. The result: you can speed
your compliance, reduce your design
iterations and shorten your time
to market.
USB Speed Trends
USB 3.0
USB 2.0
The architecture of USB is such
is that all of these data rates can
co-exist at the same time within
a configuration, all controlled by a
common PC host.
This gives the flexibility to mix and
match peripherals with different
needs in terms of speed and
throughput.
variants. The company participates
actively in the USB Implementers
Forum (USB-IF) allowing it to
influence and respond rapidly to
changes in the test specifications.
5 Gb/s
480 Mb/s
20 08+
USB 1.0
12 Mb/s
2000
USB 1.5 Mb/s
1995
Figure 2. Evolution of USB
04 | Keysight | USB Design and Test – A Better Way - Brochure
USB 2.0 Test Solutions
The USB 2.0 cabling system comprises
four wires, two signal (D+ and D-),
power (Vbus) and ground. D+ and
D- are configured as a differential signal
pair used in NRZI half-duplex mode
and serve as the primary information
carrier between the host, hubs and
peripherals. Devices may be either bus
powered with a limit of 500mA current
drain or self powered using a in-built
power supply.
USB 2.0 specifies three different data
rates, low speed at 1.5 Mb/s, full
speed at 12 Mb/s and high speed at
480 Mb/s. All three data rates can
exist concurrently in a network of USB
devices. Any of up to seven peripheral
devices on the bus must be able to
interface with its hub and the hubs must
be able to interface with the host.
The flexibility inherent in USB is
a direct result of the stringent
specifications, regulations and
compliance testing mandated by the
USB-IF. To ensure your products
comply with the USB 2.0 specifications
require extensive testing. To prove
electrical compliance requires that
signal integrity, current and voltage
parametric, and data integrity testing
is undertaken. High speed USB 2.0
in addition requires that high speed
signal quality, receiver sensitivity,
CHIRP timing (high speed handshake)
and packet parameters are tested.
Signal Quality Tests
The basic USB 2.0 electrical test
suite includes signal quality, in-rush
current and voltage droop/drop
tests. For signal quality testing an
oscilloscope is used to observe
the signals being transmitted and
received. The oscilloscope allows a
range of parameters to be measured
including signal eye, end of packet
width, signaling rate, rise/fall times,
cross-over voltage and jitter.
Keysight Infiniium 9000 Series
oscilloscopes together with Keysight
probes and test fixtures are critical
for reproducing the USB-IF specified
tests. The Keysight USB Compliance
Test Software makes USB signal
integrity compliance testing as simple
as making an automatic measurement.
By integrating a run-time version of
MATLAB within the oscilloscope
for use with the USB-IF test scripts
the USB Compliance Test Software
provides you with a one-box solution
to speed your signal quality testing as
well as provide you with confidence
your results will be consistent to those
obtained at certification events or USBIF approved test labs.
Data Integrity Test
Determining the cause of a data error
or a performance problem in a USB
network can be challenging. Logic
and protocol analysis allows you to
see data traffic, make critical timing
measurements, and verify protocols,
making it the ideal tool for detecting
and debugging higher-level data
integrity problems.
The Keysight Infiniium 9000 Series
Mixed Signal Oscilloscopes include
integrated built-in logic and protocol
analysis capabilities. The in-scope
protocol viewer and debug application
software with protocol triggering
and USB serial decode allows you
to extend your debug and testing
capabilities without the use of
additional test equipment.
Keysight’s Infiniium
9000 Series oscilloscopes have
the only scope based protocol
viewer and the widest range
of debug and compliance
applications.
High Speed Tests
High speed USB 2.0 requires that
high speed signal quality, receiver
sensitivity, CHIRP timing and packet
parameters are tested. Since the
connection scheme for USB 2.0 uses
a single pair of wires for both transmit
and receive paths high speed signal
quality testing has to be sequenced
between sending a stimulus and then
measuring the response.
Keysight’s USB 2.0 Receiver Test
Library utilizes the Keysight 81134A
pattern generator and an Infiniium
oscilloscope for extensive receiver
testing. The device under test is
put into the SEO_NAK mode and
the pattern generator is used to
apply an amplitude and bit pattern
controlled stimulus to test the
sensitivity level of the receiver.
The Infiniium Oscilloscope test
software automatically controls the
signal source to easily and quickly
sequence through the required tests.
Additionally, Keysight provides the
industry’s only automated jitter
tolerance test solution for USB 2.0
using the Keysight N5990A software
platform. The receiver sensitivity and
squelch thresholds are then measured
using the oscilloscope.
Together with the USB Compliance
Test Software this ensures that
your products are tested to be fully
compliant to the USB 2.0 specification
requirements.
The Keysight
USB Compliance
Test Software makes
USB signal integrity
compliance testing
as simple as making
an automatic
measurement.
05 | Keysight | USB Design and Test – A Better Way - Brochure
USB 2.0 Key
Advantages
Most Eficient and Accurate
Full automation and integrated
MATLAB scripts save time and
eliminate errors. Other vendor’s USB
solutions pre-compliance testing in
a lab environment involves capturing
data with an oscilloscope, transferring
it to a PC and post-processing it with
a software program. Keysight has
simplified the process by installing a
run-time version of MATLAB software
in the scope and integrating the USBIF USB test option into the Infiniium
oscilloscope’s menu structure. Once
the test is executed, the test results
appear on the Infiniium display in an
HTML-formatted window. Each test
also automatically saves the PNG,
HTML, and TSV files required by the
USB-IF – other vendor’s solutions do
not and require manually creating the
necessary files. The HTML reports
that Keysight automatically create are
complete with test configuration, all
measurements made, pass/fail status,
margin analysis, waveforms and the
USB-IF approved MATLAB outputs.
Additionally, with full automation, the
oscilloscope is set up automatically
for each test to ensure correct
measurement configuration. For
example, Keysight’s receiver tests
communicate between the pattern
generator and oscilloscope to
automatically load the correct test
patterns into the pattern generator,
adjust voltages and automatically
trigger and measure NAK responses to
find pass/fail points for each receiver
test as described by USB-IF.
Other vendor solutions require the
user to manually load patterns in the
pattern generator, manually adjust the
differential signal voltages to find NAK
responses, and manually mark and
measure pass/fail voltage levels. This
manual process is time consuming
and prone to errors.
Protocol Triggering
and Decode
Keysight’s 9000 series oscilloscope
is the only to offer protocol triggering
and decode capabilities.
Figure 3. Matlab output from application
Figure 4. Series 9000 protocol output
Trigger on and quickly view USB
packets, payload, header and detail
information. Powerful time-correlated
views of waveform and symbol, to
the bit level, make it easy to isolate
communication faults to logic or
analog sources. Efficiently debug your
HSIC, UTMI, ULI or other MAC/PHY
interface quickly to track down bit
error locations. Quickly move between
physical and protocol layer information
using the time-correlated tracking
marker. Display protocol content using
waveform symbols and the industry’s
first multi-tab protocol viewer. The
packets tab shows a high level view
of the packet over time.
Text
06 | Keysight | USB Design and Test – A Better Way - Brochure
Keysight USB 2.0 Test Portfolio
N5416A USB Compliance Test Software
The N5416A compliance test software for Infiniium oscilloscopes gives you
a fast and reliable way to verify USB electrical specification compliance for
USB 2.0 hosts, hubs and devices. The software executes the official USB-IF
MATLAB scripts with MATLAB’s runtime engine embedded in the oscilloscope
for guaranteed correlation with official USB-IF test requirements. The software
also automates the receiver testing providing the fastest receiver testing and
compliance verification tools available.
Ininiium 9000 Series Oscilloscopes
The Infiniium 9000 Series mixed signal oscilloscopes provide analog bandwidths
of up to 4GHz and built-in logic and protocol analysis. In addition to impressive
analog specifications the Infiniium 9000 includes fast, integrated 2GSa/s digital
channels and an in-scope protocol viewer for USB.
USB 2.0 Receiver Test Library
The Keysight USB 2.0 receiver test library N5990A option 102 complements the
N5416A compliance test suite with additional receiver tests including intra-pair
skew, jitter tolerance, carrier skew, squelch test and differential sensitivity tests.
For receiver testing the N5990 option 102 is used in conjunction with a Keysight
81134A pulse pattern generator and an Infiniium oscilloscope. Option 202 is the
interface to N5416A.
Low, Full and High Speed Test Fixtures
Keysight offers a range of test fixtures that meet the requirements of the USB-IF
compliance test specification. For low and full speed compliance testing an
E2646A SQuIDD (Signal Quality inrush Droop Drop) test fixture is required. High
speed USB compliance testing requires the E2649A/B fixtures. For On-The-Go (OTG)
USB testing Keysight offers the industry’s only OTG Electrical Test (OET) fixture.
07 | Keysight | USB Design and Test – A Better Way - Brochure
USB 3.0 Test Solutions
USB 3.0 has been introduced to
address some of the performance
bottlenecks of USB 2.0. High speed
USB 2.0 provides a data rate of
480 Mbps. However, the real data
throughout is typically much less with
I/O performance limitations typically
allowing less than 35 MB/s.
When downloading larger files higher
throughput is required to allow
manageable transfer times. USB 3.0
provides up to 5 Gb/s data rate and
greater than 200 MB/s
data throughput.
To achieve this higher level of
performance USB 3.0 adds 4 additional
wires to the interconnection. The
Song /
Pic
256
Flash
USB
Flash
cabling system comprises 8 wires in
total, 4 of these conform to USB 2.0
and are used to ensure backward
compatibility. The additional wires
are configured as two additional
pairs that are dedicated to USB 3.0
communications. These operate in
Full Simplex mode with one pair for
transmit and one for receive.
The 10-fold increase in data rate of
USB 3.0 poses new challenges in
testing the transmitter, receiver and
cabling system.
Keysight’s well established position as
the leader in RF and Microwave design
and test allows it to apply its expertise
to the high speed testing needs of the
USB 3.0 standard.
SD-Movie
USB
Flash
HD-Movie
4 MB
256 MB
1 GB
6 GB
16 GB
25 GB
USB 1.0
5.3 sec
5.7 min
22 min
2.2 hr
5.9 hr
9.3 hr
USB 2.0
0.1 sec
8.5 sec
33 sec
3.3 min
8.9 min
13.9 min
USB 3.0 0.01 sec
0.8 sec
3.3 sec
20 sec
53.3 sec
70 sec
Transmitter Tests
For USB 3.0 transmitter testing
compliance must be measured at the
end of a ‘compliance channel’ with
SMA termination for the transmitter
signals using a phase matched
SMA cable.
Keysight’s USB 3.0 test fixture
provides a high performance USB 3.0
signal breakout with support for both
transmitter and receiver testing
with the SMA terminations.
When testing the transmit path a
high-speed oscilloscope must be used
to measure the transmitted waveform
using compliance patterns. This will
allow eye diagram analysis and the
measurement of signal amplitudes,
jitter, average data rate and
rise/fall times.
Keysight’s 90000 series of
oscilloscopes provide up to 13 GHz of
bandwidth. Together with the U7243A
USB 3.0 Transmitter Compliance
Test Application the oscilloscope
can be used to perform transmitter
compliance and validation testing as
defined by the USB 3.0 specification.
Figure 5. Table of performance for different file types
Keysight’s
Infiniium 90000 Series
oscilloscopes provide the
lowest noise floor, jitter
noise floor, and trigger
jitter in the industry.
Figure 6. USB connector
08 | Keysight | USB Design and Test – A Better Way - Brochure
Receiver Tests
USB 3.0 specifies an error counter
within the device that can internally
check the error performance of the
receiver. The specification also
provides test modes that include the
ability to loop back the received data
over the device’s transmitter.
Testing receiver sensitivity requires
a controlled stimulus or pattern
generator, which can provide a
calibrated jitter input to the receiver
under test. Measuring using the
integrated error counter requires the
use of an oscilloscope or BERT to
read and decode the resulting value.
Without an internal error counter
testing in asynchronous loopback
mode requires a BERT or protocol
analyzer to evaluate the resulting bit
stream for errors.
The error counter approach is limited
to the compliance pattern that can
be recognised by the internal device.
Although this is adequate for simple
pass/fail testing it does not allow for
debugging and characterization.
Generally receiver stress testing is
used to characterize the performance
of the USB device under varying
conditions of amplitude and jitter.
It requires a pattern generator that
can apply these different conditions
including the ability to generate true
random jitter for the target BER.
Keysight’s portfolio of test solutions
addresses all of these issues. For USB
3.0 the Keysight’s N4903B J-BERT
can generate the patterns necessary
to stimulate the device, including the
ability to stress the device for jitter
tolerance testing. The captured result
can be decoded using an oscilloscope
together with the Keysight N5990A
test automation software platform.
Alternatively Keysight’s BERT together
with SuperSpeed protocol analysis
solutions from Ellisys (www.ellisys.
com) can be used in loopback mode to
characterize the resulting performance
of the device. The Ellisys EX280
is integrated in the N5990A Test
Automation Software; therefore, both
the JBERT and the EX280 are
fully automated.
Keysight’s J-BERT N4903B offers the
only complete jitter tolerance testing for
receivers up to 12.5 Gb/s. The N4903B
characterizes the jitter tolerance and
margins of receivers by providing halfrate clocks with variable duty-cycle
distortion to emulate effects of non-ideal
clocking. This allows the most accurate
charactrization, enabling
more robust designs.
Channel Tests
Due to the increased bandwidth and
longer channel lengths of USB 3.0
more testing is required for cables,
connectors and channel validation.
TDR/TDT measurements are
essential to ensure that designs
meet the differential impedance and
skew targets. VNA measurements
are necessary to allow accurate
verification of return loss, insertion
loss and near/far end crosstalk
requirements.
Keysight’s test portfolio allows you
to test all aspects of USB 3.0, the
transmitter, the receiver, the channel
and the cabling system.
Keysight’s USB compliance portfolio
meets the compliance test coverage
requirements defined by the USBIF. This means that when using
Keysight’s test solutions you can be
assured your products are tested to
the latest standards.
09 | Keysight | USB Design and Test – A Better Way - Brochure
USB 3.0 Key
Advantages
Test Fixture
Automation Rx testing
Jitter tolerance curves are key
to understanding the real jitter
performance of a receiver. The
N5990A Test Automation Platform
offers not only automated receiver
compliance testing, but also
automated receiver characterization
including jitter tolerance (see Figure7).
Realistic conditions are emulated
and certain properties of the signal
deliberately stress specific building
blocks of the DUT. Unlike other time
consuming solutions that create the
files in software to load waveforms
for each individual jitter test point,
the N5990A sweeps using the proper
stimulus signal including calibrated
jitter; thus, reducing measurement
time to a minimum. Automated
calibration capabilities are critical
to ensuring that normal variations
in instrument jitter characteristics
and interconnect tolerances are
compensated prior to testing.
Device Jitter Tolerance
USB 3.0 SuperSpeed
The U7242A USB 3.0 test fixture will
help simplify the USB 3.0 measurement
process by providing access to the
transmitter and receiver measurement
points required for USB 3.0 compliance
testing. It has been designed for
direct SMA connections for easy and
accurate measurements with direct
connections to the oscilloscope and
J-Bert SMA connections. It also
includes probing connections for
InfiniiMax active differential probes
for the characterization and testing of
active bus signalling of USB 3.0 and
USB 2.0 traffic.
Investment protection
Keysight’s USB solutions offer
investment protection due to signal
generation and analysis capability
for the bus standards USB, PCI
Express®, SATA and DisplayPort
testing. The same transmitter and
receiver hardware can be used for all
these bus standards. Additionally, the
90000 series oscilloscope offers the
industry’s only upgradeable BW for
real time scopes, upgradable memory,
and the industry’s only application
server licenses.
10
Max Passed Jitter
Jitter Capability Test Setup
Sinusoidal Jitter [UI]
Min Spec
1
0.1
0.1
1
10
Sinusoidal Jitter Frequency [MHz]
Figure 7. Jitter Tolerance
100
Figure 8. USB 3.0 fixture
10 | Keysight | USB Design and Test – A Better Way - Brochure
Keysight USB 3.0 Test Portfolio
Physical Layer: Interconnect Design
Physical Layer:
Active Signal Validation
Protocol
Validation
Functional
Test
USB 3.0 Transmitter Compliance Test Application
U7243A USB 3.0 Superspeed Electrical Performance Validation and Compliance
Software for the Infiniium Oscilloscoopes
The U7243A USB 3.0 electrical test software utilizes the prescribed test
methods and algorithms as defined in the USB 3.0 rev 1.0 specification and draft
test specification.
By incorporating the USB-IF SigTest utility the U7243A USB 3.0 electrical test
software will provide you with consistent lab compliance test results with those
generated at USB-IF workshops or test labs that use the standalone USB-IF
SigTest tool for transmitter compliance verification.
DSO/DSA91304A 13-GHz Oscilloscope
The Keysight 90000 Series Infiniium oscilloscopes deliver the highest performance
real-time measurement system available. The Infiniium 90000 Series offers the
industry’s lowest noise floor, jitter noise floor, and trigger jitter, making it the
ideal tool for signal integrity and jitter measurements. Models are available from
2.5 GHz to 13 GHz, and can be upgraded in bandwidth for future needs.
USB 3.0 Test Fixtures
Keysight U7242A USB 3.0 Electrical Test Fixture:
The U7242A USB 3.0 Test Fixture will help simplify the USB 3.0 measurement
process by providing access to the transmitter and receiver measurement points
required for USB 3.0 compliance testing.
– Provides test point access for transmitter measurements
– Single ended measurements as required by the USB 3.0 specification for
transmitter and receiver validation and compliance testing
– Differential measurements using active probes allow probing of active bus
transactions for debug and verification testing
– USB 3.0 power probing features for easy measurement of transient and
steady state power states
11 | Keysight | USB Design and Test – A Better Way - Brochure
J-BERT N4903B High Performance Serial BERT
The recommended Keysight USB 3.0 receiver test solution is based on the
J-BERT N4903B.
J-BERT B integrates a high quality, precision data generator and pre-calibrated
jitter sources for reliable and repeatable test results. By design J-BERT B test
results will be consistent even across multiple instances of J-BERT B.
Its random jitter capabilities comply with the standard’s target bit error ratio
requirements and is based on a true random noise source (no bounded periodic
random jitter)
J-BERT B provides controls to vary signal stress conditions on the fly and
during test execution. For example signal amplitude or jitter stress levels can be
modified in real-time while the test is running.
The J-BERT B pattern sequencer and memory based pattern feature allow
to automatically turn on the test mode prior to the receiver stress test and
change test patterns. This allows to easily adapt the test for specific silicon
implementations or for changing the test pattern for debugging purposes.
Integrated signal analysis features of the error detector allow to measure and
calibrate the test setup without additional instruments for measuring jitter,
amplitude etc.
ENA network analyzer E5071C
The E5071C network analyzer offers the highest RF performance and fastest
speed in its class, with a wide frequency range and versatile functions. The
E5071C is the ideal solution for manufacturing and R&D engineers evaluating
RF components and circuits for frequency range up to 20 GHz.
The USB 3.0 Cable Compliance MOI requires option 010 and one of
480/485/4K5.
USB 3.0 Receiver Test Software
The Keysight receiver test software N5990A option 102 covers both, USB
2.0 and USB 3.0. It complements the U7243A compliance test suite with the
receiver compliance, jitter tolerance, sensitivity and constant parameter stress
tests. For USB 3.0 receiver testing N5990A option 102 controls the Keysight
J-BERT N4903A/B and additional instruments. N5990A option 202 is the
interface to the U7243A, providing a consolidated test report.
Ellisys USB Explorer 280 Protocol Analyzer
Keysight recommends Ellisys USB Explorer 280 protocol analyzer for
unsurpassed Superspeed analysis. See www.ellisys.com
12 | Keysight | USB Design and Test – A Better Way - Brochure
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Luxembourg
Netherlands
Russia
Spain
Sweden
Switzerland
United Kingdom
0800 001122
0800 58580
0800 523252
0805 980333
0800 6270999
1800 832700
1 809 343051
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:
www.keysight.com/find/contactus
(BP-05-19-14)
This information is subject to change without notice.
© Keysight Technologies 2009 – 2014
Published in USA, July 31, 2014
5990-4640EN
www.keysight.com
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