Tektronix CSA7000 Series User manual

User Manual
CSA7000 Series
Serial Mask Testing &
Serial Pattern Trigger
TDS6000 & TDS7000 Series
Option SM Serial Mask Testing
Option ST Serial Pattern Trigger
071-1035-03
This document applies to firmware version 2.2
and above.
www.tektronix.com

Copyright ©Tektronix, Inc. All rights reserved.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.
Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077-0001
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

Serial Mask Testing & Serial Pattern Trigger User Manual i
Table of Contents
Preface iii...................................................
Manual Structure iii................................................
Related Manuals iii.................................................
Contacting Tektronix v.............................................
Getting Started 1............................................
Product Description 1..............................................
Installing Optional Serial Mask Testing and Serial Pattern Trigger Functions
on TDS6000 and TDS7000 Series Instruments 3.....................
Operating Basics 5..........................................
Serial Mask Testing Functions 5......................................
Accessing Serial Pattern Trigger Functions 8............................
Reference 11.................................................
Mask Testing 11....................................................
Communication (Comm) Triggering 32.................................
Serial Pattern Trigger 36.............................................
Appendix A: Supported Mask Types and Standards 41............
Appendix B: Supported Communication Trigger
Codes and Standards 45...................................
Appendix C: Automatic Communication Signal Measurements 47...
Levels Used in Taking Eye Measurements 48............................
Index 51....................................................

Table of Contents
ii Serial Mask Testing & Serial Pattern Trigger User Manual
List of Figures
Figure 1: Masks control window 5.............................
Figure 2: Communication signal trigger functions 6..............
Figure 3: Communication measurement functions 7..............
Figure 4: Serial pattern trigger control window 8.................
Figure 5: Eye-diagram and optical values 48......................
List of Tables
Table 1: Masks control window functions 5.....................
Table 2: Communication trigger functions 6....................
Table 3: Serial trigger functions 8.............................
Table 4: ITU-T masks 41......................................
Table 5: ANSI T1.102 masks 41................................
Table 6: Ethernet masks 41....................................
Table 7: SONET/SDH masks 42................................
Table 8: Fibre Channel masks 42...............................
Table 9: Fibre Channel Electrical masks 42......................
Table 10: InfiniBand masks 42.................................
Table 11: Serial ATA masks 42.................................
Table 12: USB 1.1/2.0 masks 43................................
Table 13: 1394b masks 43.....................................
Table 14: Rapid IO LP-LVDS masks 43.........................
Table 15: Rapid IO Serial masks 43............................
Table 16: IOF masks 44.......................................
Table 17: PCI-Express masks 44...............................
Table 18: AMI trigger standards 45.............................
Table 19: B3ZS trigger standards 45............................
Table 20: B6ZS trigger standards 45............................
Table 21: B8ZS trigger standards 45............................
Table 22: CMI trigger standards 46.............................
Table 23: HDB3 trigger standards 46...........................
Table 24: MLT3 trigger standards 46...........................
Table 25: NRZ trigger standards 46............................
Table 26: Supported communications measurements and
their definition 47........................................

Serial Mask Testing & Serial Pattern Trigger User Manual iii
Preface
This is the user manual for Serial Mask Testing and Serial Pattern Trigger
functions. The user Mask functions, Mask Testing functions and Comm
measurements are standard on CSA7000 Series instruments, and both TDS6000
and TDS7000 Series instruments. All other functions mentioned in this
document are optional for TDS6000 and TDS7000 Series instruments. Serial
Pattern Trigger is not available on TDS7104 and TDS7054 instruments.
This manual:
HDescribes the capabilities of the Serial Mask Testing and Serial Pattern
Trigger functions, and how to install these functions on TDS6000 and
TDS7000 instruments
HExplains how to access and operate the features
Manual Structure
This manual is organized into the following chapters:
HGetting Started provides an overview of the Serial Mask Testing and Serial
Pattern Trigger functions, and shows you how to install these functions on
TDS6000 and TDS7000 instruments.
HOperating Basics describes how to access the functions using the front panel
and the instrument graphical user interface.
HReference provides detailed steps for doing the most common Serial Mask
Testing and Serial Pattern Trigger tasks.
Related Manuals
The following table lists other documents that support the operation and service
of the CSA7000, TDS6000, and TDS7000 Series instruments. The part numbers
of these documents are listed in the Accessories section of your instrument user
manual.

Preface
iv Serial Mask Testing & Serial Pattern Trigger User Manual
Manual name Description
Online Help An online help system that is integrated with the User Interface application that ships
with the CSA7000, TDS7000, and TDS6000 instruments
References A quick reference to the major features of the instrument and how they operate
User Manual1The user manual for the CSA7000, TDS7000, and TDS6000 instruments
Programmer Online Guide An alphabetical listing of the programming commands and other information related to
controlling the instrument over the GPIB and TekVISA interfaces
Service Manual A description of how to service the instrument to the module level. This optional
manual must be ordered separately
1You can insert this user manual behind the Appendices section of your instrument user manual.

Preface
Serial Mask Testing & Serial Pattern Trigger User Manual v
Contacting Tektronix
Phone [phone]*
Address Tektronix, Inc.
Department or name (if known)
14200 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
Web site www.tektronix.com
Sales support 1-800-833-9200, select option 1*
Service support 1-800-833-9200, select option 2*
Technical support Email: [e-mail]
1-800-833-9200, select option 3*
6:00 a.m. -- 5:00 p.m. Pacific time
* This phone number is toll free in North America. After office hours, please leave a
voice mail message.
Outside North America, contact a Tektronix sales office or distributor; see the
Tektronix web site for a list of offices.

Preface
vi Serial Mask Testing & Serial Pattern Trigger User Manual

Serial Mask Testing & Serial Pattern Trigger User Manual 1
Getting Started
This section of the user manual provides a high-level description of the Serial
Mask Testing and Serial Triggering functions. The user Mask functions, Mask
Testing functions and Comm measurements are standard with the CSA7000
Series instruments and both TDS7000 Series Digital Phosphor Oscilloscopes and
TDS6000 Series Digital Sampling Oscilloscopes. All other functions mentioned
in this document are optional for TDS6000 and TDS7000 Series oscilloscopes.
Serial Pattern Trigger is not available on TDS7104 and TDS7054 instruments.
This section also describes how to install Serial Mask Testing and Serial
Triggering functions on TDS6000 and TDS7000 Series instruments.
Product Description
The following text is an overview of the Serial Mask Testing and Serial
Triggering features.
The Serial Mask Testing feature provides optical and electrical mask testing,
communication triggering, and automatic communication signal measurements.
Mask testing consists of two tasks: signal violation detection and pass/fail
testing. Signal violation detection lets you test communications signals for time
or amplitude violations against a predefined mask. Each mask consists of one or
more polygonal regions called segments. The signal waveform data should stay
outside of the segments defined by the mask. Any signal data that occurs inside a
mask segment is called a mask segment violation or “hit.”
You can select from any of the included standard telecommunications masks, or
you can define your own custom masks. Selecting a mask automatically sets the
instrument communications triggers to properly display most communication
signals in the mask.
Pass/Fail testing defines the mask testing parameters, including the number of
waveforms to test, how many mask hits are allowed before failing a test, setting
a mask margin tolerance value, and what action to perform at the completion of a
test.
Communication triggering enables you to trigger on and display waveforms for
industry-standard communications signals. Appendix B lists the supported
standards on which you can trigger.
Automatic communication signal measurements enable you to make automatic
measurements on communications signals. Appendix C lists the available
measurements.
Serial Mask Testing

Getting Started
2Serial Mask Testing & Serial Pattern Trigger User Manual
The Serial Mask Testing key features are:
HPredefined masks for testing or triggering on industry-standard signals, such
as ITU--T G.703, ANSI T1.102, Fibre Channel, Ethernet, InfiniBand,
SONET, Serial ATA, USB, IEEE 1394b, and their subsets
HOn CSA7000 instruments, optical mask standards have calibrated digital
filters, enabling operation as an optical reference receiver
HAutoset, which quickly adjusts the instrument vertical and horizontal
parameters to display a waveform in a mask
HAutofit, which positions the signal on each acquisition to minimize mask
segment hits
HMask margins, which allow you to adjust the default mask margin tolerances
HPass/Fail testing to continuously test a specified number of waveforms
against a mask
HA mask editor for creating, saving, and recalling user-defined masks
HWaveform database technology to do mask testing based on waveforms
accumulated in a database, rather than a single waveform stored in acquisi-
tion memory
HCommunications triggers to trigger the instrument on industry-standard
communications signals
HAutomatic measurements on communications signals
HClock recovery from the serial data stream (except for TDS7104 and
TDS7054 instruments)
NOTE. If a standard or function listed in this manual is not available on your
instrument, it is because the configuration or bandwidth of your instrument
cannot test that standard.
The CSA7000 Series instruments, when used with the O/E Electrical Out-to-CH1
Input Adapter (013--0327--xx), are calibrated optical reference receivers with
digital filtering, enabling you to do mask standard compliance testing.
Although the TDS6000 and TDS7000 Series instruments are not calibrated
optical reference receivers, you can use them with mask testing to evaluate
general optical signal characteristics and waveshape, using an external O/E
converter.

Getting Started
Serial Mask Testing & Serial Pattern Trigger User Manual 3
Serial Pattern Trigger lets you define a serial data pattern on which to trigger the
instrument (not available on TDS7104 and TDS7054 instruments).
The Serial Pattern Trigger key features are:
HUser-defined serial data pattern of up to 32 bits on NRZ data streams up to
1.25 GBaud
HClock recovery from the serial data stream
Installing Optional Serial Mask Testing and Serial Pattern Trigger Functions
on TDS6000 and TDS7000 Series Instruments
To enable the optional Serial Mask Testing and/or Serial Triggering functions on
TDS6000 and TDS7000 instruments, you must have a valid Option Installation
Key. Do the following steps:
1. From the oscilloscope menu bar, touch the Utilities menu, select Option
Installation, and then touch Continue.
2. Enter the authorization key using the instrument keyboard.
3. Touch Continue.
4. Reboot your instrument to enable the new option(s).
5. Attach the option configuration label(s) on the rear panel of the instrument to
indicate that the option(s) is installed on this instrument.
Serial Pattern Trigger

Getting Started
4Serial Mask Testing & Serial Pattern Trigger User Manual

Serial Mask Testing & Serial Pattern Trigger User Manual 5
Operating Basics
This chapter describes how to access the Serial Mask Testing and Serial Pattern
Triggering features, and provides a brief description of each function’s settings.
See the Reference section in this manual for detailed instructions on using the
Serial Mask Testing and Serial Pattern Triggering functions.
Serial Mask Testing Functions
Serial Mask Testing provides three sets of functions: optical and electrical serial
mask testing, communications triggering, and automatic communication signal
measurements. This section describes how to access these functions.
To access the Serial Mask Test functions, touch the Masks tool bar button. The
instrument displays the Masks control window, as shown in Figure 1.
Figure 1: Masks control window
Table 1 describes the Masks control window tab functions. Refer to the
Reference chapter beginning on page 11 of this manual, as well as the online
help, for more information about these functions.
Table 1: Masks control window functions
Tab Function
Mask Set the mask type, communications standard, polarity, mask on/off, and autofit/autoset alignment
parameters
Source Set the input waveform source
Tolerance Set the mask margin tolerance values
Accessing Serial Mask
Testing Functions

Operating Basics
6Serial Mask Testing & Serial Pattern Trigger User Manual
Table 1: Masks control window functions (cont.)
Tab Function
Pass/Fail Setup Set the mask test pass/fail parameters
Pass/Fail Results Display the pass/fail test results
To access the Serial Mask Testing communication trigger functions, do the
following steps:
1. Touch the Trig tool bar button. The instrument displays the Trigger control
window.
2. Select the AEventtab.
3. Touch Comm in Trigger Type. The instrument displays the communication
signal trigger functions, as shown in Figure 2.
Figure 2: Communication signal trigger functions
Table 2 describes the communication trigger functions. Refer to the Reference
chapter beginning on page 11 of this manual, as well as the online help, for more
information about these functions.
Table 2: Communication trigger functions
Menu Function
Source Sets the waveform data source (Ch1-Ch4)
Type Sets the waveform source type (Data, Clock, or Recovered Clock); the recovered clock function is not
available on the TDS7104 or the TDS7054, and is only available for NRZ coded signals
Polarity Sets the edge (positive or negative) on which to trigger; this function is only available when Type is set to
Clock
Accessing Serial Mask
Testing Communications
Trigger Functions

Operating Basics
Serial Mask Testing & Serial Pattern Trigger User Manual 7
Table 2: Communication trigger functions (cont.)
Menu Function
Coding Sets the communications code type from a drop--down menu (AMI, BZ3S, B6ZS, B8ZS, CMI, HDB3,
MLT3, NRZ)
Standard Sets the signal standard for the selected code from a drop--down menu
Bit Rate Sets or displays the bit rate for the selected standard; if you change the default bit rate, the signal
standard changes to Custom
Comm Trigger
Upper/Lower Level
Sets the source signal threshold levels for the selected code; this function displays a single level field or
upper/lower level fields depending on the selected code and standard
Pulse Form Sets the comm signal pulse format on which to trigger; this function is displayed when required by a
selected standard
Serial Mask Testing uses the built--in, automatic communications measurements.
To access the communications signal automatic measurements, do the following
steps:
1. Touch the Meas tool bar button. The instrument displays the Measurement
control window.
2. Select the Comm tab. The instrument displays the communication measure-
ment functions, as shown in Figure 3.
Figure 3: Communication measurement functions
Refer to the user manual for your instrument for information on setting up and
taking automatic measurements. Refer to Appendix C of this manual for a list
and description of the communication measurements.
Accessing Serial Mask
Testing Automatic
Measurement Functions

Operating Basics
8Serial Mask Testing & Serial Pattern Trigger User Manual
Accessing Serial Pattern Trigger Functions
To access the Serial Pattern Trigger functions, do the following steps:
1. Touch the Trig tool bar button. The instrument displays the Trigger control
window.
2. Select the AEventtab.
3. Touch Serial in the Trigger Type field. The instrument displays the serial
pattern trigger functions, as shown in Figure 4.
Figure 4: Serial pattern trigger control window
Table 3 describes the Serial Pattern Trigger functions. Refer to the Reference
chapter beginning on page 11 of this manual, as well as the online help, for more
information about these functions.
Table 3: Serial trigger functions
Menu Function
Data Src Sets the serial trigger waveform data source (Ch1-Ch4)
Clk Src Sets the serial trigger clock source (Ch1-Ch4, Recovered Clock); the recovered clock function is not
available on the TDS7104 or the TDS7054, and is only available for NRZ coded signals on the TDS6000
and TDS7000 Series instruments
Clk Polarity Sets the source waveform polarity (positive or negative); this function is available only when Clk Src is set
to a different value than Data Src
Coding Shows the serial trigger communications code type, which is always NRZ
Standard Sets the serial trigger signal standard
Bit Rate Sets or displays the bit rate for the selected standard
Data Level
Clk Level
Sets the data and clock source threshold levels for the selected code

Operating Basics
Serial Mask Testing & Serial Pattern Trigger User Manual 9
Table 3: Serial trigger functions (cont.)
Menu Function
Editor Opens the serial pattern data editor which lets you define the serial pattern on which to trigger
Format Displays the serial trigger pattern data in binary or hexadecimal format

Operating Basics
10 Serial Mask Testing & Serial Pattern Trigger User Manual

Serial Mask Testing & Serial Pattern Trigger User Manual 11
Reference
This chapter contains instructions for performing the following tasks:
HMask Testing (starting on this page) describes how to set up and run mask
tests, as well as how to create, edit, and save user masks.
HCommunication (Comm) Triggering (page 32) describes how to trigger on
industry-standard communication signals, and provides information on the
recovered clock (R Clk) feature.
HSerial Pattern Trigger (page 36) describes how to trigger on user-defined
serial data.
Mask Testing
Mask testing sets the instrument to test industry-standard communications
signals against defined masks to verify the timing, amplitude, and waveform
shape of the signal. This section provides step-by-step instructions on how to
access and operate the mask test features.
The mask testing instructions cover the following subjects:
HMask test setup
HRunning a mask test
HCreating a user mask from a defined mask
HSaving a user mask to disk
HRecalling a user mask from disk
HEditing a user mask
HCreating a new user mask
HMask testing key points (general and optical)

Reference
12 Serial Mask Testing & Serial Pattern Trigger User Manual
To set the instrument to perform mask tests, do the following procedure.
Overview To mask test a waveform Related control elements and resources
Prerequisites 1. Connect the instrument to the source signal, or save the
source signal to a math or reference waveform memory
location.
Access the
Mask Setup
window
2. From the button bar, touch Masks.
The instrument displays the Mask control window.
Select a mask
test signal
source
3. Select the Source tab and then the channel, math, or
reference tab and then select the waveform source to
use as the mask test source. You can mask test one
waveform at a time.
Mask Test Setup