R&S®RTO, R&S®RTO6, R&S®RTP
Ethernet Compliance Tests
User Manual
(=AÖ22)
1317720202
Version 16
This manual describes the Ethernet compliance test procedures with the following options:
●
10/100/1000BASE-T:
R&S®RTO-K22 (1329.7460.02), R&S®RTO6-K22 (1801.6929.02), R&S®RTP-K22 (1337.8691.02)
●
2.5/5/10GBASE-T:
R&S®RTO-K23 (1329.7477.02), R&S®RTO6-K23 (1801.6935.02), R&S®RTP-K23 (1337.8704.02)
●
100BASE-T1:
R&S®RTO-K24 (1329.7483.02), R&S®RTO6-K24 (1801.6941.02), R&S®RTP-K24 (1800.6531.02)
●
1000BASE-T1:
R&S®RTO-K87 (1337.8591.02), R&S®RTO6-K87 (1801.6970.02), R&S®RTP-K87 (1800.6554.02)
●
MGBASE-T1:
R&S®RTO-K88 (1801.4526.02), R&S®RTO6-K88 (1801.7890.02), R&S®RTP-K88(1800.6725.02)
●
10BASE-T1:
R&S®RTO-K89 (1801.4510.02), R&S®RTO6-K89 (1801.6987.02), R&S®RTP-K89 (1800.6719.02)
The tests require the R&S RT‑ZF2 Ethernet Test Fixture (1317.5522.02 ) and the R&S ScopeSuite software.
The energy-efficient Ethernet (EEE) 100/1000BASE-T tests require the R&S RT-ZF5 Ethernet probing fixture (1333.0896.02).
The 10BASE-Te tests require the R&S RT-ZF4 10BASE-Te fixture (1333.0880.02).
© 2021 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: +49 89 41 29 - 0
Email: info@rohde-schwarz.com
Internet: www.rohde-schwarz.com
Subject to change – data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
1317.7202.02 | Version 16 | R&S®RTO, R&S®RTO6, R&S®RTP
Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol , e.g. R&S®ScopeSuite is indicated as
R&S ScopeSuite.
R&S®RTO, R&S®RTO6, R&S®RTP
Contents
1 R&S ScopeSuite Overview....................................................................7
2 Preparing the Measurements................................................................9
2.1 Test Equipment..............................................................................................................9
2.2 Installing Software and License.................................................................................11
2.3 Setting Up the Network...............................................................................................11
2.4 Starting the R&S ScopeSuite..................................................................................... 12
2.5 Connecting the R&S RTO/RTO6/RTP........................................................................ 12
2.6 Connecting the Arbitrary Waveform Generator....................................................... 14
2.7 Connecting the Vector Network Analyzer.................................................................15
2.8 Connecting the Spectrum Analyzer.......................................................................... 17
Contents
2.9 Report Configuration.................................................................................................. 18
3 Performing Tests..................................................................................20
3.1 Starting a Test Session...............................................................................................20
3.2 Configuring the Test................................................................................................... 21
3.3 Getting Test Results....................................................................................................23
4 1000BASE-T Tests................................................................................25
4.1 Starting 1000BASE-T Tests........................................................................................ 25
4.2 Test Configuration for Ethernet 1000BASE-T...........................................................25
4.3 1000BASE-T.................................................................................................................27
4.4 1000 BASE-T EEE Tests..............................................................................................60
5 100BASE-TX Tests............................................................................... 79
5.1 Starting 100BASE-TX Tests........................................................................................79
5.2 Test Configuration for Ethernet 100BASE-TX.......................................................... 79
5.3 100BASE-TX................................................................................................................ 81
5.4 100BASE-TX EEE...................................................................................................... 101
6 10BASE-T Tests..................................................................................110
6.1 Starting 10BASE-T Tests.......................................................................................... 110
6.2 Test Configuration for Ethernet 10BASE-T............................................................. 110
6.3 10BASE-T Tests......................................................................................................... 112
6.4 10BASE-Te Tests.......................................................................................................139
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7 Ethernet 2.5/5/10 G.............................................................................169
7.1 2.5GBASE-T Tests..................................................................................................... 169
7.2 5GBASE-T Tests........................................................................................................ 192
7.3 10GBASE-T Tests...................................................................................................... 210
8 100BASE-T1 Tests..............................................................................229
8.1 Starting 100BASE-T1 Tests...................................................................................... 231
8.2 Test Configuration for 100BASE-T1........................................................................ 231
8.3 Transmitter Output Droop........................................................................................ 234
8.4 Transmitter Distortion...............................................................................................237
8.5 Transmitter Timing Jitter.......................................................................................... 241
8.6 Transmitter Power Spectral Density and Peak Differential Output...................... 244
8.7 MDI Return Loss with R&S RT-ZF2..........................................................................245
Contents
8.8 MDI Mode Conversion Loss and Return Loss........................................................247
8.9 MDI Mode Conversion Loss Adaptor Verification..................................................249
8.10 MDI Common Mode Emission..................................................................................250
9 1000BASE-T1 Tests............................................................................253
9.1 Starting 1000BASE-T1 Tests.................................................................................... 254
9.2 Test Configuration for 1000BASE-T1...................................................................... 255
9.3 Transmitter Timing Jitter (97.5.3.3)..........................................................................259
9.4 MDI Jitter and Clock Frequency (97.5.3.3/97.5.3.6)................................................ 264
9.5 Transmitter Distortion (97.5.3.2).............................................................................. 266
9.6 PSD Power Level and Output Voltage (97.5.3.4/ 97.5.3.5 ).....................................268
9.7 Maximum Output Droop (97.5.3.1)...........................................................................270
9.8 MDI Return Loss with R&S RT-ZF2 (97.7.2.1)......................................................... 272
9.9 MDI Mode Conversion Loss Test Head Verification (OA ECU)............................. 274
9.10 MDI Mode Conversion Loss and Return Loss(97.7.2.2)........................................ 275
10 10BASE-T1 Tests................................................................................278
10.1 Starting 10BASE-T1 Test.......................................................................................... 278
10.2 Test Configuration for Ethernet 10BASE-T1...........................................................278
10.3 10BASE-T1S Tests.................................................................................................... 280
10.4 10BASE-T1L Tests.....................................................................................................287
11 MGBASE-T1 Tests..............................................................................295
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11.1 Starting MGBASE-T1 Test........................................................................................ 295
11.2 Test Configuration for MGBASE-T1.........................................................................295
11.3 Test Equipment..........................................................................................................297
11.4 Common Parameters................................................................................................298
11.5 Transmitter Timing Jitter Master..............................................................................299
11.6 Transmitter Timing Jitter Slave Mode..................................................................... 300
11.7 Transmitter MDI Random Jitter in Master Mode.....................................................301
11.8 Test Mode 2, JP03A...................................................................................................302
11.9 Transmit MDI Even-Odd Jitter in Master Mode.......................................................304
11.10 Transmitter Linearity.................................................................................................305
11.11 Test Mode 5................................................................................................................307
11.12 Maximum Output Droop........................................................................................... 308
11.13 MDI Return Loss........................................................................................................310
Contents
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Contents
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1 R&S ScopeSuite Overview
The R&S ScopeSuite software is used with R&S RTO/RTO6/RTP oscilloscopes. It can
be installed on a test computer or directly on the oscilloscope. For system requirements, refer to the Release Notes.
R&S ScopeSuite Overview
The R&S ScopeSuite main panel has several areas:
●
"Settings": connection settings to oscilloscope and other instruments also default
report settings
●
"Compliance Tests": selection of the compliance test
●
"Demo": accesses demo test cases that can be used for trying out the software
without having a connection to an oscilloscope
●
"Help": opens the help file, containing information about the R&S ScopeSuite configuration
●
"About": gives information about the R&S ScopeSuite software
●
"Tile View": allows a personalization of the compliance test selection
You can configure which tests are visible in the compliance test section and which
are hidden, so that only the ones you use are displayed.
► To hide a test from the "Compliance Tests" view, do one of the following:
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a) Right-click on the compliance test you want to hide.
The icon of the test changes, see Figure 1-1. Now with a left click you can hide
the test.
Figure 1-1: Unpin icon
b) Click on "Title View" to show a list of the available test cases. By clicking a test
case in the show list, you can pin/unpin it from the main panel.
R&S ScopeSuite Overview
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2 Preparing the Measurements
2.1 Test Equipment
For Ethernet compliance tests, the following test equipment is needed:
●
The free-of-charge R&S ScopeSuite software, which can be installed on a computer or directly on the oscilloscope.
●
10/100/1000BASE-T Ethernet compliance tests:
– R&S RTO / R&S RTO6 /R&S RTP oscilloscope with at least 600 MHz band-
width
– Differential probe with at least 1 GHz bandwidth
– R&S RTO / R&S RTO6 /R&S RTP-K22 10/100/1000BASE-T Ethernet compli-
ance test option (required option, installed on the oscilloscope)
– R&S RT-ZF2 Ethernet test fixture set
– For energy-efficient Ethernet tests, in addition:
R&S RT-ZF5 Ethernet test fixture set for 100/1000BASE-T EEE tests
R&S RT-ZF4 test fixture for 10BASE-Te tests
●
2.5GBASE-T Ethernet compliance tests:
– R&S RTO / R&S RTO6 /R&S RTP oscilloscope with at least 600 MHz band-
width
For precise power spectral density and power level measurements up to
1 GHz, it is recommended to use an oscilloscope and a differential probe with
1 GHz bandwidth each.
– Differential probe with at least 1GHz bandwidth
– R&S RTO / R&S RTO6 /R&S RTP-K23 GBASE-T Ethernet compliance test
option (required option, installed on the R&S RTO/RTO6/RTP)
– R&S RT-ZF2 Ethernet test fixture set
●
5GBASE-T Ethernet compliance tests:
– R&S RTO / R&S RTO6 /R&S RTP oscilloscope with at least 1 GHz bandwidth
For precise power spectral density and power level measurements up to
1.5 GHz, it is recommended to use an oscilloscope and a differential probe with
1.5 GHz bandwidth each.
– Differential probe with at least 1.5 GHz bandwidth
– R&S RTO / R&S RTO6 /R&S RTP-K23 GBASE-T Ethernet compliance test
option (required option, installed on the R&S RTO/RTO6/RTP)
– R&S RT-ZF2 Ethernet test fixture set
●
10GBASE-T Ethernet compliance tests:
– R&S RTO / R&S RTO6 /R&S RTP oscilloscope with at least 2 GHz bandwidth
For precise power spectral density and power level measurements up to
3 GHz, it is recommended to use an oscilloscope and a differential probe with
3 GHz bandwidth each.
Preparing the Measurements
Test Equipment
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– Differential probe with at least 3 GHz bandwidth
– R&S RTO / R&S RTO6 /R&S RTP-K23 GBASE-T Ethernet compliance test
option (required option, installed on the R&S RTO/RTO6/RTP)
– R&S RT-ZF2 Ethernet test fixture set
●
100BASE-T1 compliance tests:
– R&S RTO / R&S RTO6 /R&S RTP oscilloscope with at least 600 MHz band-
width
– Differential probe with 1 GHz bandwidth
– R&S RTO / R&S RTO6 /R&S RTP-K24 100BASE-T1 compliance test option
(required option, installed on the R&S RTO/RTO6/RTP)
– R&S RT-ZF2 Ethernet test fixture set
– R&S RT-ZF3 frequency converter for transmitter distortion tests
●
1000BASE-T1 compliance tests:
– R&S RTO / R&S RTO6 /R&S RTP oscilloscope with at least 2 GHz bandwidth
– Differential probe with 2 GHz bandwidth
– R&S RTO / R&S RTO6 /R&S RTP-K87 1000BASE-T1 compliance test option
(required option, installed on the R&S RTO/RTO6/RTP)
– R&S RT-ZF2 Ethernet test fixture set
– R&S RT-ZF6 frequency converter for transmitter distortion tests
●
MGBASE-T1 compliance tests:
– R&S RTO / R&S RTO6 /R&S RTP oscilloscope, with a bandwidth of:
- for 2.5 GBASE-T1 tests: at least 3.5 GHz
- for 5 GBASE-T1 tests: at least 7 GHz
- for 10 GBASE-T1 tests: at least 14 GHz
– 2 BNC/SMA cables
– R&S RTO / R&S RTO6 /R&S RTP-K88 MGBASE-T1 compliance test option
(required option, installed on the R&S RTO/RTO6/RTP)
●
10BASE-T1 compliance tests:
– R&S RTO / R&S RTO6 /R&S RTP oscilloscope
– Optional Differential probe with 1 GHz bandwidth
– R&S RTO / R&S RTO6 /R&S RTP-K89 10BASE-T1 compliance test option
(required option, installed on the R&S RTO/RTO6/RTP)
●
R&S RTO-B6/R&S RTP-B6/Tabor WX2182B/Tabor WX2182C arbitrary waveform
generator for automatic disturber tests. For some disturber tests, also HMF2550
can be used.
●
R&S ZNB/ZNC/ZND/ZVL vector network analyzer for automatic return loss measurements. For manual measurements, also other AWGs and VNAs can be used.
Preparing the Measurements
Test Equipment
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2.2 Installing Software and License
The preparation steps are performed only once for each computer and instrument that
are used for testing.
Uninstall older versions of the R&S ScopeSuite
If an older version of the R&S ScopeSuite is installed, make sure to uninstall the old
version before you install the new one. You can find the version number of the current
installation in "Help" menu > "About". To uninstall the R&S ScopeSuite, use the Windows " Control Panel" > "Programs".
For best operation results, we recommend that the installed firmware versions of the
R&S ScopeSuite and the oscilloscope are the same.
To install the R&S ScopeSuite
1. Download the latest R&S ScopeSuite software from the "Software" section on the
Rohde & Schwarz R&S RTO/RTO6/RTP website:
www.rohde-schwarz.com/product/rtp.html
www.rohde-schwarz.com/product/rto.html
Preparing the Measurements
Setting Up the Network
2. Install the R&S ScopeSuite software:
● On the computer that is used for testing, or
● On the R&S RTO/RTO6/RTP.
For system requirements, refer to the Release Notes.
To install the license key on the R&S RTO/RTO6/RTP
► When you got the license key of the compliance test option, enable it on the oscil-
loscope using [Setup] > "SW Options".
For a detailed description, refer to the R&S RTO/RTO6/RTP user manual, chapter
"Installing Options", or to the online help on the instrument.
2.3 Setting Up the Network
If the R&S ScopeSuite software runs on a test computer, the computer and the testing
oscilloscope require a LAN connection.
For some test cases, you need an additional instrument: arbitrary waveform generator
(AWG), vector network analyzer (VNA), or spectrum analyzer. These instruments can
be used in automatic or manual mode. For automatic testing, a LAN connection to the
additional instrument is required.
There are two ways of connection:
●
LAN (local area network): It is recommended that you connect to a LAN with DHCP
server. This server uses the Dynamic Host Configuration Protocol (DHCP) to
assign all address information automatically.
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Preparing the Measurements
Connecting the R&S
If no DHCP server is available, or if the Tabor WX2182B or WX2182C is used for
automatic testing, assign fixed IP addresses to all devices.
●
Direct connection of the instruments and the computer or connection to a switch
using LAN cables: Assign fixed IP addresses to the computer and the instruments
and reboot all devices.
To set up and test the LAN connection
1. Connect the computer and the instruments to the same LAN.
2. Start all devices.
3. If no DHCP server is available, assign fixed IP addresses to all devices.
4. Ping the instruments to make sure that the connection is established.
5. If VISA is installed, check if VISA can access the instruments.
a) Start VISA on the test computer.
b) Validate the VISA address string of each device.
See also:
●
Chapter 2.5, "Connecting the R&S RTO/RTO6/RTP", on page 12
●
Chapter 2.6, "Connecting the Arbitrary Waveform Generator", on page 14
●
Chapter 2.7, "Connecting the Vector Network Analyzer", on page 15
●
Chapter 2.8, "Connecting the Spectrum Analyzer", on page 17
RTO/RTO6/RTP
2.4 Starting the R&S ScopeSuite
To start the R&S ScopeSuite on the test computer or on the oscilloscope:
► Double-click the R&S ScopeSuite program icon.
To start the R&S ScopeSuite on the instrument, in the R&S RTO/RTO6/RTP firmware:
► In the "Apps" dialog, open the "Compliance" tab.
2.5 Connecting the R&S RTO/RTO6/RTP
If the R&S ScopeSuite is installed directly on the instrument, the software detects the
R&S RTO/RTO6/RTP firmware automatically, and the "Oscilloscope" button is not
available in the R&S ScopeSuite.
If the R&S ScopeSuite software runs on a test computer, the computer and the testing
oscilloscope require a LAN connection, see Chapter 2.3, "Setting Up the Network",
on page 11. The R&S ScopeSuite software needs the IP address of the oscilloscope to
establish connection.
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1. Start the R&S RTO/RTO6/RTP.
2. Start the R&S ScopeSuite software.
3. Click "Settings" > "Oscilloscope".
Preparing the Measurements
Connecting the R&S RTO/RTO6/RTP
4. Enter the IP address of the oscilloscope.
To obtain the IP address: press the Rohde & Schwarz logo at the top-right corner
of the oscilloscope's display.
5. Click "Get Instrument Information".
The computer connects with the instrument and gets the instrument data.
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Preparing the Measurements
Connecting the Arbitrary Waveform Generator
If the connection fails, an error message is shown.
2.6 Connecting the Arbitrary Waveform Generator
For Ethernet tests using a disturber, an arbitrary waveform generator (AWG) is
required. The tests can be performed manually or automatically, depending on the
available AWG.
Automatic test execution is possible with all instruments that are listed in the R&S ScopeSuite, in the "Instrument Settings" dialog box. In automatic mode, the R&S ScopeSuite configures the instrument and ensures that the AWG sends the required waveforms. Automatic mode requires a LAN connection and the installation of a VISA implementation (R&S VISA, see www.rohde-schwarz.com/rsvisa) on the computer that is
running the R&S ScopeSuite. If the R&S ScopeSuite is installed on the R&S RTO/
RTO6/RTP, no installation is needed because VISA is already installed on the instrument. If the Tabor WX2182B or WX2182C is used for automatic testing, fixed IP
addresses are required.
For manual test execution, it is recommended to use one of the listed AWGs, but you
can also use another AWG. In manual mode, you connect the AWG to the test board
and configure the instrument manually. VISA is not required. The R&S ScopeSuite
uses VISA if it is installed, otherwise it uses the VXI-11 protocol.
To configure the arbitrary waveform generator for automatic testing
1. Connect the computer and the AWG.
2. Set up the LAN connection. See Chapter 2.3, "Setting Up the Network",
on page 11.
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3. In the R&S ScopeSuite, click "Instruments".
Alternatively, you can select the "Instrument" tab in the test case configuration dialog.
4. Click the "AWG" tab.
5. Select "Operating mode" = "Automatic".
6. Select a supported "AWG Type" and enter its IP address.
For a list of the supported AWGs, see chapter "Test Equipment".
Preparing the Measurements
Connecting the Vector Network Analyzer
7. Click "Get Instrument Information".
The computer or R&S RTO/RTO6/RTP connects with the instrument and retrieves
the instrument data.
8. If the connection to the arbitrary waveform generator failed, check if the IP address
is assigned correctly.
To configure the AWG for manual testing
► In the "AWG" tab, enable the "Manual" operating mode.
2.7 Connecting the Vector Network Analyzer
The vector network analyzer (VNA) is required to perform Ethernet return loss measurements.
Similar to the AWG, the VNA can be used in automatic or manual mode. You can use
the automatic mode only with supported instruments. A LAN connection and a VISA
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installation on the computer that is running the R&S ScopeSuite is required. If the
R&S ScopeSuite is installed on the R&S RTO/RTO6/RTP, no installation is needed
because VISA is already installed on the instrument.
For manual test execution, it is recommended to use one of the listed VNAs. Moreover,
any VNA can be used that meets the following requirements:
●
S11 parameter measurements are possible
●
Can export trace data in Touchstone (*.s1p) or *.csv format
●
Supports frequency range 1 MHz to 500 MHz
In manual mode, you connect the vector network analyzer to the test board and configure the instrument manually.
To connect the vector network analyzer for automatic testing
1. Connect the computer and the VNA. Set up the LAN connection, see Chapter 2.3,
"Setting Up the Network", on page 11.
2. In the R&S ScopeSuite, click "Instruments".
Preparing the Measurements
Connecting the Vector Network Analyzer
3. Click the "VNA" tab.
4. Select the "Automatic" operating mode.
5. Select the "VNA Type" and enter its IP address.
6. Click "Get Instrument Information".
The computer or R&S RTO/RTO6/RTP connects with the instrument and retrieves
the instrument data.
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2.8 Connecting the Spectrum Analyzer
A spectrum analyzer is required to perform Ethernet 10GBASE-T transmitter linearity
tests.
Similar to the AWG, the spectrum analyzer can be used in automatic or manual mode.
Automatic mode is supported with R&S FSV/FSQ/FSW/ESRP. It requires a LAN connection and a VISA installation on the computer that is running the R&S ScopeSuite. If
the R&S ScopeSuite is installed on the R&S RTO/RTO6/RTP, no installation is needed
because VISA is already installed on the instrument.
For manual test execution, it is recommended to use one of the listed spectrum analyzers. Moreover, any spectrum analyzer can be used that meets the following requirements:
●
Frequency range from 1 MHz to 400 MHz
●
RF input attenuation greater than 35 dB
In manual mode, you connect the spectrum analyzer to the test board and configure
the instrument manually.
Preparing the Measurements
Connecting the Spectrum Analyzer
To connect the spectrum analyzer for automatic testing
1. Connect the computer and the spectrum analyzer.
2. Set up the LAN connection. See Chapter 2.3, "Setting Up the Network",
on page 11.
3. In the R&S ScopeSuite, click "Instruments".
4. Click the "SA" tab.
5. Select the "Automatic" operating mode.
6. Select the "SA Type" and enter its IP address.
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Preparing the Measurements
Report Configuration
7. Click "Get Instrument Information".
The computer or R&S RTO/RTO6/RTP connects with the instrument and retrieves
the instrument data.
2.9 Report Configuration
In the "Report Configuration" menu, you can select the format of the report and the
details to be included in the report. You can also select an icon that is displayed in the
upper left corner of the report.
Also, you can enter common information on the test that is written in the "General Information" section of the test report.
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Preparing the Measurements
Report Configuration
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3 Performing Tests
3.1 Starting a Test Session
Performing Tests
Starting a Test Session
After you open a compliance test, the "Session Selection" dialog appears. In this dialog, you can create new sessions, open or view existing report.
The following functions are available for handling test sessions:
Function Description
"Add" Adds a new session
"Open" Opens the selected session
"Remove" Removes the selected session
"Rename" Changes the "Session Name"
"Comment" Adds a comment
"Show report" Generates a report for the selected session
To add a test session
1. In the R&S ScopeSuite window, select the compliance test.
2. In the "Session Selection" dialog press "Add".
3. If necessary change the "Session Name"
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To open a test session
1. In the R&S ScopeSuite window, select the compliance test.
2. In the "Session Selection" dialog, select the session you want to open and double
click on it.
Alternatively, select the session and press "Open".
To show a report for a test session
1. In the R&S ScopeSuite window, select the compliance test.
2. In the "Session Selection" dialog, select the session you want the report for and
press "Show report".
3.2 Configuring the Test
Performing Tests
Configuring the Test
1. In the R&S ScopeSuite window, select the compliance test to be performed:
● "100BASE-T1"
● "Ethernet"
● "MGBASE-T1"
● "Ethernet 2.5/5G/10G"
● "1000BASE-T1"
● "10BASE-T1"
2. Open a test session, see Chapter 3.1, "Starting a Test Session", on page 20.
3. Adjust the "Properties" settings for the test cases you want to perform.
4. Click "Limit Manager" and edit the limit criteria, see Chapter 3.2.1.1, "Limit Man-
ager", on page 23.
5. If you want to use special report settings the "Report Config" tab to define the format and contents of the report. Otherwise the settings defined in "RSScopeSuite" >
"Settings" > "Report" are used. See Chapter 2.9, "Report Configuration",
on page 18.
6. Click "Test Checked"/"Test Single" and proceed as described in the relevant test
case chapter.
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3.2.1 General Test Settings
Performing Tests
Configuring the Test
Each session dialog is divided into several sections:
●
"Properties": shows the settings that can be made for the test case selected on the
left side of the dialog. You can differentiate between the "All" and the sub test properties
In the "All" > "Properties" tab you can configure the settings for all test cases in the
current session. Once you change and save a setting in this tab, the changes will
be done for all test in the sessions. At the same time, there will be a special marking for the functions that have different settings for different sub tests.
●
"Limit Manager": sets the measurement limits that are used for compliance testing,
see Chapter 3.2.1.1, "Limit Manager", on page 23.
●
"Results": shows an overview of the available test results for this session.
●
"Instruments": defines instruments settings for connecting to external devices, that
are specific for this test session.
When a session is first created the global settings ("RSScopeSuite" > "Settings" >
"Instruments") are copied to the session. This "Instruments" tab can be used to
change those copied defaults.
●
"Report Config": defines the format and contents of the report for this session.
When a session is first created the global settings ("RSScopeSuite" > "Settings" >
"Report") are copied to the session. This "Report Config" tab can be used to
change those copied defaults.
●
"Test Checked"/ "Test Single": starts the selected test group.
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R&S®RTO, R&S®RTO6, R&S®RTP
3.2.1.1 Limit Manager
The "Limit Manager" shows the measurement limits that are used for compliance testing.
Each limit comprises the comparison criterion, the unit, the limit value A, and a second
limit value B if the criterion requires two limits.
You can set the values to defaults, change the values in the table, export the table in
xml format, or import xml files with limit settings.
► Check and adjust the measurement limits.
Performing Tests
Getting Test Results
3.3 Getting Test Results
For each Ethernet test, the test data - report, diagrams and waveform files - is saved in
the following folder:
%ProgramData%\Rohde-Schwarz\RSScopeSuite\3.0\Sessions\Ethernet\
<Ethernet category>\<Session_Name>
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R&S®RTO, R&S®RTO6, R&S®RTP
For each 100BASE-T1 test, the test data - report, diagrams and waveform files - is
saved in the following folder:
%ProgramData%\Rohde-Schwarz\RSScopeSuite\3.0\Sessions\
100BASE-T1\<Session_Name>
If you resume an existing session, new measurements are appended to the report,
new diagrams and waveform files are added to the session folder. Existing files are not
deleted or replaced. Sessions data remain until you delete them in the "Results" tab of
the session.
The report format can be defined in "RSScopeSuite" > "Settings" > "Report" for all
compliance tests (see also Chapter 2.9, "Report Configuration", on page 18). If you
want to use special report settings for a session, you can define the format and contents of the report in the "Report Config" tab of the session.
All test results are listed in the "Results" tab. Reports can be provided in PDF,
MSWord, or HTML format. To view and print PDF reports, you need a PDF viewer, for
example, the Acrobat Reader.
The test report file can be created at the end of the test, or later in the "Session Selection" dialog.
Performing Tests
Getting Test Results
To show a test report
1. In the R&S ScopeSuite window, select the compliance test to be performed.
2. Select the session name in the "Session Selection" dialog and click "Show report".
The report opens in a separate application window, depending on the file format.
You can check the test results and print the report.
To delete the results, diagrams and waveform files of a session
1. In the "Session Selection" dialog select the session and open it.
2. In the "Results" tab, select the result to be deleted.
3. Click "Remove".
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R&S®RTO, R&S®RTO6, R&S®RTP
4 1000BASE-T Tests
1000BASE-T Ethernet compliance tests require option R&S RTO/RTO6/RTP-K22.
1000BASE-T EEE tests require also option R&S RTO/RTO6/RTP-K86.
4.1 Starting 1000BASE-T Tests
Before you run the test, complete the following actions:
●
Initial setup of the equipment, see Chapter 2.2, "Installing Software and License",
on page 11
●
LAN connection of the oscilloscope and the computer running the R&S ScopeSuite, see Chapter 2.5, "Connecting the R&S RTO/RTO6/RTP", on page 12
●
AWG connection for tests with disturber, see Chapter 2.6, "Connecting the Arbitrary
Waveform Generator", on page 14.
●
VNA connection for MDI Return Loss and Transmitter Power Spectral Density
tests, see Chapter 2.7, "Connecting the Vector Network Analyzer", on page 15.
1000BASE-T Tests
Test Configuration for Ethernet 1000BASE-T
1. Select "Ethernet" in the R&S ScopeSuite start window.
2. In the "Session Selection" dialog, set "Select Type" > "1000BASE-T".
3. Add a new test session and open it, see Chapter 3.1, "Starting a Test Session",
on page 20.
4. Check the test configuration settings and adjust, if necessary. See:
● Chapter 4.2, "Test Configuration for Ethernet 1000BASE-T", on page 25
● Chapter 3.2.1.1, "Limit Manager", on page 23
5. Select/check the test cases you want to run and click "Test Single"/"Test checked".
6. A step-by step guide explains the following individual setup steps. When you have
finished all steps of the step-by-step guide, the compliance test runs automatically.
4.2 Test Configuration for Ethernet 1000BASE-T
Open a "1000BASE-T" session.
The test configuration consists of some test-specific configuration settings.
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1000BASE-T Tests
Test Configuration for Ethernet 1000BASE-T
Figure 4-1: Configuration for 1000BASE-T compliance tests
Pair
Select which cable pair is used.
Signals
Selects the oscilloscope channels for the pair testing.
Average Count
Defines the number of waveforms which the oscilloscope acquires to calculate the
average waveform (average count).
Increasing the number of waveforms results in more accurate measurement results but
also in longer test execution time. If you are unsure, use the default values. The valid
range is 5 to 200. The default value is 10.
Measurement Time
Sets the measurement time. The valid range is 50E-9 to 100E-3, the default value is
100E-3.
Voltage Attenuation
The voltage attenuation is used for all 1000BASE-T EEE test cases.
Voltage attenuation sets how many times the voltage attenuates after going through
directional coupler on the test fixture. The default value is a theoretical value and works
well for R&S RT-ZF5. It is not suggested to be changed for all time unless a value is
confirmed from careful calibration.
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R&S®RTO, R&S®RTO6, R&S®RTP
Expert Mode
If enabled, the "Expert Mode" allows you to bypass the guided steps of the test case.
Test Fixture
Selects if the fixture that is used for the measurement has a SMA input or not.
This setting is used for the "Common-mode Output Voltage" test cases.
4.3 1000BASE-T
The following table shows an overview of the needed equipment for performing the
1000BASE-T test cases. A prerequisite is also a R&S RTO / R&S RTO6 /R&S RTP
with at least 600 MHz bandwidth, the R&S ScopeSuite software and a 1000BASE-T
DUT.
Table 4-1: Equipment for 1000BASE-T Ethernet compliance tests
1000BASE-T Tests
1000BASE-T
Transmitter Distortion
(40.6.1.2.4)
No disturber and No
TX_TCLK
Transmitter Distortion
(40.6.1.2.4)
No disturber and with
TX_TCLK
Transmitter Distortion
(40.6.1.2.4)
With disturber and No
TX_TCLK
Transmitter Distortion
(40.6.1.2.4)
With disturber and With
TX_TCLK
Differen-
tial probe
1
at least 1
GHz band-
width
1
at least 1
GHz band-
width
1
at least 1
GHz band-
width
1
at least 1
GHz band-
width
Differential type Single-
Test fixture
R&S RT-ZF2
Section:
Resistive Load
R&S RT-ZF2
Section:
Resistive Load
R&S RT-ZF2
Section:
Resistive Load
R&S RT-ZF2
Section:
Resistive Load
Ended type
SMA
- Optional:
1
at least 1
GHz band-
width
- Optional:
1
at least 1
GHz band-
width
Additional instruments
R&S RTO / R&S
RTO6 /R&S RTP-K17
Optional:
R&S RTO / R&S
RTO6 /R&S RTP-K17
R&S RTO / R&S
RTO6 /R&S RTP-K17
ARB:
R&S RTO-B6 or
Tabor WX2182B/
WX2182C or
HMF2550
Optional:
R&S RTO / R&S
RTO6 /R&S RTP-K17
ARB:
R&S RTO-B6 or
Tabor WX2182B/
WX2182C or
HMF2550
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1000BASE-T Tests
1000BASE-T
Peak Output Voltage
(40.6.1.2.1)
No disturber
Peak Output Voltage
(40.6.1.2.1)
With disturber
Maximum Output Droop
(40.6.1.2.2)
No disturber
Maximum Output Droop
(40.6.1.2.2)
With disturber
Differen-
tial probe
1
at least 1
GHz band-
width
1
at least 1
GHz band-
width
1
at least 1
GHz band-
width
1
at least 1
GHz band-
width
Differential type Single-
Test fixture
R&S RT-ZF2
Section:
Resistive Load
R&S RT-ZF2
Section:
Resistive Load
R&S RT-ZF2
Section:
Resistive Load
R&S RT-ZF2
Section:
Resistive Load
Ended type
SMA
1
at least 1
GHz band-
width
1
at least 1
GHz band-
width
1
at least 1
GHz band-
width
1
at least 1
GHz band-
width
Additional instruments
Optional:
R&S RTO / R&S
RTO6 /R&S RTP-K17
Optional:
R&S RTO / R&S
RTO6 /R&S RTP-K17
ARB:
R&S RTO-B6 or
Tabor WX2182B/
WX2182C or
HMF2550
Optional:
R&S RTO / R&S
RTO6 /R&S RTP-K17
Optional:
R&S RTO / R&S
RTO6 /R&S RTP-K17
ARB:
R&S RTO-B6 or
Tabor WX2182B/
WX2182C or
HMF2550
Differential Output Templates
(40.6.1.2.3)
No disturber
Differential Output Templates
(40.6.1.2.3)
With disturber
Jitter Master Mode and
Clock Frequency
(40.6.1.2.5 and
40.6.1.2.6 )
No TX_TCLK
1
at least 1
GHz band-
width
1
at least 1
GHz band-
width
1
at least 1
GHz band-
width
R&S RT-ZF2
Section:
Resistive Load
R&S RT-ZF2
Section:
Resistive Load
R&S RT-ZF2
Section:
Jitter Slave Test
1000BaseT
1
at least 1
GHz band-
width
1
at least 1
GHz band-
width
- Total of 2 DUTs required
Optional:
R&S RTO / R&S
RTO6 /R&S RTP-K17
Optional:
R&S RTO / R&S
RTO6 /R&S RTP-K17
ARB:
R&S RTO-B6 or
Tabor WX2182B/
WX2182C or
HMF2550
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1000BASE-T Tests
1000BASE-T
Jitter Master Mode and
Clock Frequency
(40.6.1.2.5 and
40.6.1.2.6 )
With TX_TCLK
Jitter Slave Mode
(40.6.1.2.5)
No TX_TCLK
Jitter Slave Mode
(40.6.1.2.5)
With TX_TCLK
MDI Return Loss
(40.8.3.1)
Differential type Single-
Differen-
tial probe
1
at least 1
GHz band-
width
1
at least 1
GHz band-
width
1
at least 1
GHz band-
width
Test fixture
R&S RT-ZF2
Section:
Jitter Slave Test
1000BaseT
R&S RT-ZF2
Section:
Jitter Slave Test
1000BaseT
R&S RT-ZF2
Section:
Jitter Slave Test
1000BaseT
- R&S RT-ZF2
Section:
Twisted Pair Model
Additional instruments
Ended type
SMA
1
at least 1
GHz band-
width
- Total of 2 DUTs required
1
at least 1
GHz band-
width
- VNA:
Total of 2 DUTs required
Gigabit Ethernet jitter
cable:
R&S RT-ZF2C
Total of 2 DUTs required
R&S ZNB or
R&S ZNC or
R&S ZND or
R&S ZVL
Common-mode Output
Voltage
(40.8.3.3)
at least 1
GHz band-
width
● Transmitter Distortion..............................................................................................29
● Peak Output Voltage...............................................................................................35
● Maximum Output Droop..........................................................................................39
● Differential Output Templates..................................................................................43
● Jitter Master Mode.................................................................................................. 49
● Jitter Slave Mode.................................................................................................... 53
● MDI Return Loss..................................................................................................... 56
● Common-mode Output Voltage...............................................................................58
4.3.1 Transmitter Distortion
The " Transmitter Distortion" test verifies that the peak distortion of the transmitter is
less than 10 mV - with/without a disturbing signal, and with/without a DUT transmit
clock TX_CLK.
1
R&S RT-ZF2
Section:
Common Mode Voltage
- Optional:
R&S RTO / R&S
RTO6 /R&S RTP-K17
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4.3.1.1 No Disturber
Test Equipment
Table 4-2: Equipment for Transmitter Distortion test, no disturber
Item Description, model Quantity
1000BASE-T Tests
1000BASE-T
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
least 600 MHz bandwidth
Ethernet test fixture, "Resistive Load" section R&S RT‑ZF2 1
Single-ended probe (for test "With TX_CLK") at least 1 GHz bandwidth 1
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 1
Performing the Tests
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select the test case:
● "No TX_CLK" test:
"No Disturber" > "No TX_CLK" > "Transmitter Distortion (40.6.1.2.4)"
1
● "With TX_CLK" test:
"No Disturber" > "With TX_CLK" > "Transmitter Distortion (40.6.1.2.4)"
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1000BASE-T Tests
1000BASE-T
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
Measurements
For" Transmitter Distortion" test, the DUT has to transmit a test mode 4 waveform. The
same waveform is used for 1000BASE-T "Common Mode Voltage" test.
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Figure 4-2: Test mode 4 waveform
1000BASE-T Tests
1000BASE-T
The test acquires N * 2047 consecutive symbols from the test mode 4 waveform. Each
symbol corresponds to approximately 8 ns.
If a DUT transmits clock (TX_TCLK is available), the clock pulses are extracted directly
from the DUT TX_TCLK.
If no DUT transmits clock TX_TCLK, the clock pulses are extracted from the measured
test mode 4 waveform.
Each clock pulse contains one symbol. Each symbol is divided into 40 points, which is
averaged over N cycles of 2047 symbols.
After averaging, 2047 symbols with 81880 points are available. One point from each
symbol is passed to a MATLAB script to determine the peak distortion. (The MATLAB
script can be downloaded from section 40.6.1.2.4 of the IEEE 802.3 specification.) This
process is repeated 40 times (once for each point per symbol).
4.3.1.2 With Disturber
Test Equipment
Table 4-3: Equipment for Transmitter Distortion test with disturber
Item Description, model Quantity
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with
1
at least 600 MHz bandwidth
Arbitrary waveform generator R&S RTO-B6/R&S RTP-B6/Tabor
WX2182B/Tabor WX2182C
Ethernet test fixture, "Resistive Load with Distortion source" section
R&S RT‑ZF2 1
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R&S®RTO, R&S®RTO6, R&S®RTP
Item Description, model Quantity
Single-ended probe (for test "With TX_CLK") at least 1 GHz bandwidth 1
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 1
Performing the Test (No TX_CLK)
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select the test case:
● "No TX_CLK" test:
"With Disturber" > "No TX_CLK" > "Transmitter Distortion (40.6.1.2.4)"
1000BASE-T Tests
1000BASE-T
● "With TX_CLK" test:
"With Disturber" > "With TX_CLK" > "Transmitter Distortion (40.6.1.2.4)"
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1000BASE-T Tests
1000BASE-T
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
Disturbing Signal
The disturbing signal is a standard 5.4 Vpp 20.833 MHz sine wave. It is recommended
to use the indicated HAMEG or Tabor arbitrary waveform generator to create the dis-
turbing signal. If Tabor WX2182B is used, an external amplifier is required because the
maximum output voltage of this generator is 4 Vpp.
The disturbing signal is calibrated on the "Resistive Load with Distortion Source" section of the R&S RT‑ZF2 Ethernet test fixture. The disturbing signal under calibration is
measured at X502 to X505.
The test is also performed on the "Resistive Load with Distortion Source" section of the
R&S RT‑ZF2 Ethernet test fixture. The output waveform measured at X506 is attenuated by a voltage divider. It is required to compensate for the attenuation. The compensation factor is calculated by measuring the voltage difference between the “Resistive
Load” section and the “Resistive Load with Distortion Source” section. Point B of test
mode 1 waveform is used for this calibration.
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Measurements
The measurement is the same as without a disturber (described in "Measurements"
on page 31). However, post-processing requires an additional step to remove the disturbing signal before the interpolated points are calculated.
The disturbing signal is removed in 2 steps:
1. Determine the best fit of a sine wave at the fundamental frequency of the disturbing
signal.
2. Subtract the best fit sine wave from the measured waveform.
If a DUT transmit clock TX_CLK is not available, the clock pulses are extracted from
the measured waveform after the disturbing signal has been removed.
4.3.2 Peak Output Voltage
The "Peak Output Voltage" test that the transmitter output levels are within the specified range - with/without disturbing signal. For full compliance testing, the specification
requires testing all 4 pairs.
1000BASE-T Tests
1000BASE-T
4.3.2.1 No Disturber
Test Equipment
Table 4-4: Equipment for Peak Output Voltage test, no disturber
Item Description, model Quantity
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with
Ethernet test fixture, "Resistive Load" section R&S RT‑ZF2 1
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 1
Performing the Test
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select "Peak Output Voltage (40.6.1.2.1)" under "No Disturber".
1
at least 600 MHz bandwidth
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1000BASE-T Tests
1000BASE-T
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
Measurements
For "Peak Output Voltage" test, the DUT has to transmit a test mode 1 waveform. The
same waveform is used for 1000BASE-T "Maximum Output Droop" test and "Differential Output Template" test.
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1000BASE-T Tests
1000BASE-T
Figure 4-3: Test mode 1 waveform with measurement points
This test consists of five measurements:
●
Absolute voltage of point A
●
Absolute voltage of point B
●
Difference of absolute voltages of point A and B, in percent
●
Absolute voltage of point C compared to the average amplitude of points A and B,
in percent
●
Absolute voltage of point D compared to the average amplitude of points A and B,
in percent
To locate the waveform, the oscilloscope uses the width trigger to find point A. Then it
measures points A, B, C and D with different gates. Each gate is 0.8 μs wide and centered at the corresponding point. All measurements are verified by values that are
averaged by multiple measurements.
4.3.2.2 With Disturber
Test Equipment
Table 4-5: Equipment for Peak Output Voltage test with disturber
Item Description, model Quantity
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with
at least 600 MHz bandwidth
Arbitrary waveform generator R&S RTO-B6/R&S RTP-B6/Tabor
WX2182B/Tabor WX2182C
Ethernet test fixture, "Resistive Load with Distortion source" section
R&S RT‑ZF2 1
1
1
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R&S®RTO, R&S®RTO6, R&S®RTP
Item Description, model Quantity
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 1
Performing the Test
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select "Peak Output Voltage (40.6.1.2.1)" under "With Disturber".
1000BASE-T Tests
1000BASE-T
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
Disturbing Signal
The disturbing signal is a standard 2.8 Vpp 31.25 MHz sine wave. It is recommended
to use the indicated HAMEG or Tabor arbitrary waveform generator to create the disturbing signal.
The disturbing signal is calibrated on the "Resistive Load with Distortion Source" section of the R&S RT‑ZF2 Ethernet test fixture. The disturbing signal under calibration is
measured at X502 to X505.
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The test is also performed on the "Resistive Load with Distortion Source" section of the
R&S RT‑ZF2 Ethernet test fixture. The output waveform measured at X506 is attenuated by a voltage divider. It is not required to compensate for the attenuation because
the attenuation is linear, and the voltage ratio of the output waveform is used in this
test.
Measurements
For "Peak Output Voltage" test, the DUT has to transmit a test mode 1 waveform, see
Figure 4-3.
After acquiring the waveforms at the measured point, the software uses a MATLAB
script to remove the disturbing signal. This is done by removing the best fit of a sine
wave at the fundamental frequency of the disturbing signal.
The following measurements are the same as without disturber, but the instrument
acquires only one waveform and there is no averaging.
4.3.3 Maximum Output Droop
1000BASE-T Tests
1000BASE-T
The "Maximum Output Droop" test verifies that the transmitter output level does not
decay faster than the maximum specified rate - without and with a disturbing signal.
4.3.3.1 No Disturber
Test Equipment
Table 4-6: Equipment for Maximum Output Droop test, no disturber
Item Description, model Quantity
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with
Ethernet test fixture, "Resistive Load" section R&S RT‑ZF2 1
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 1
Performing the Test
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
1
at least 600 MHz bandwidth
2. Select "Maximum Output Droop (40.6.1.2.2)" under "No Disturber".
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1000BASE-T Tests
1000BASE-T
3. Click "Test Checked".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
Measurements
For the "Maximum Output Droop" test, the DUT has to transmit a test mode 1 waveform. The same waveform is used for 1000BASE-T "Peak Differential Voltage" test
and" Differential Output Template" test.
40User Manual 1317.7202.02 ─ 16
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1000BASE-T Tests
1000BASE-T
Figure 4-4: Test mode 1 waveform with measurement points
The test consists of two similar measurements:
●
The oscilloscope measures the voltage ratio between points F and G of the test
mode 1 waveform. Point G is defined as the point exactly 500 ns after point F.
The software sets the trigger at point F. The oscilloscope acquires a number N of
waveforms and averages them. Then it uses the cursor tracking function to determine the time which corresponds to the minimum value of point F. Point G is 500
ns after point F. The software creates a measurement gate from point F to point G
and determines the voltage ratio using the HIGH and LOW measurement functions.
●
The oscilloscope measures the voltage ratio between points H and J of the test
mode 1 waveform. Point J is defined as the point exactly 500 ns after point H. This
measurement is similar to the first one with the following modifications: the trigger
is set to point H, and the cursor tracking function determines the time which corresponds to the maximum value of point H.
4.3.3.2 With Disturber
Test Equipment
Table 4-7: Equipment for Maximum Output Droop test with disturber
Item Description, model Quantity
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
least 600 MHz bandwidth
Arbitrary waveform generator R&S RTO-B6/R&S RTP-B6/Tabor
WX2182B/Tabor WX2182C
1
1
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Item Description, model Quantity
1000BASE-T Tests
1000BASE-T
Ethernet test fixture, "Resistive Load with
Distortion source" section
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 1
R&S RT‑ZF2 1
Performing the Test
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select "Maximum Output Droop (40.6.1.2.2)" under "With Disturber".
3. Click "Test Checked".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
Disturbing Signal
The disturbing signal is a standard 2.8 Vpp 31.25 MHz sine wave. It is recommended
to use the indicated HAMEG or Tabor arbitrary waveform generator to create the disturbing signal.
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The disturbing signal is calibrated on the "Resistive Load with Distortion Source" section of the R&S RT‑ZF2 Ethernet test fixture. The disturbing signal under calibration is
measured at X502 to X505.
The test is also performed on the "Resistive Load with Distortion Source" section of the
R&S RT‑ZF2 Ethernet test fixture. The output waveform measured at X506 is attenuated by a voltage divider. It is not required to compensate for the attenuation because
the attenuation is linear, and the voltage ratio of the output waveform is used in this
test.
Measurements
For "Maximum Output Droop" test, the DUT transmits a test mode 1 waveform, see
Figure 4-4.
After acquiring the waveforms at the two triggering points (F and H), the software uses
a MATLAB script to remove the disturbing signal. This is done by determining the best
fit of a sine wave at the fundamental frequency of the disturbing signal and then subtracting that sine wave from the measured waveform.
After removing the disturbing signal, the software downloads the measured waveform
from the oscilloscope to perform averaging over N waveforms. The software then
uploads the averaged waveform back to the oscilloscope and uses the same method
as without a disturber to measure the droop value.
1000BASE-T Tests
1000BASE-T
4.3.4 Differential Output Templates
The "Differential Output Templates" test verifies that the transmitter output fits the timedomain transmit templates - without and with a disturbing signal.
4.3.4.1 No Disturber
Test Equipment
Table 4-8: Equipment for Differential Output Templates test, no disturber
Item Description, model Quantity
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with
Ethernet test fixture, "Resistive Load" section R&S RT‑ZF2 1
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 1
Performing the Test
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
1
at least 600 MHz bandwidth
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2. Select "Differential Output Templates (40.6.1.2.3)" under "No Disturber".
1000BASE-T Tests
1000BASE-T
3. Click "Test Checked".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
Measurements
For "Differential Output Templates" test, the DUT has to transmit a test mode 1 waveform. The same waveform is used for 1000BASE-T "Peak Differential Voltage" test
and" Maximum Output Droop" test.
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1000BASE-T Tests
1000BASE-T
Figure 4-5: Test mode 1 waveform with measurement points
The IEEE 802.3 specification requires that the waveform around points A, B, C and D
is normalized and the normalized values lie within the normalized time domain transmit
template 1.
Figure 4-6: Time domain transmit template 1
The waveform is normalized as follows:
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Table 4-9: Normalization of waveforms around points A, B, C, and D
Point of test mode1 signal Normalized by dividing by
Point A Peak voltage at A
Point B Negative of the peak voltage at A
Point C 1/2 the peak voltage at A
Point D Negative of 1/2 the peak voltage at A
The IEEE 802.3 specification requires that the waveform around points F and H is normalized and the normalized values lie within the normalized time domain transmit template 2.
1000BASE-T Tests
1000BASE-T
Figure 4-7: Time domain transmit template 2
The waveform is normalized as follows:
Table 4-10: Normalization of waveforms around points F and H
Point of test mode1 signal Normalized by dividing by
Point F Peak voltage at F
Point H Peak voltage at H
The test consists of six measurements, one measurement for each point A, B, C, D, F,
and H.
The steps of each measurement are:
1. The software sets the trigger to the measured point A, B, C, D, F, or H, respectively.
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2. N waveforms are acquired and averaged into a single waveform.
3. A 2 MHz high-pass filter is applied to the averaged waveform.
4. The waveform is normalized as indicated in Table 4-9 and Table 4-10.
5. The waveform shifts in time until the best fit to the specified template (mask) is
found.
4.3.4.2 With Disturber
Test Equipment
Table 4-11: Equipment for Differential Output Templates test with disturber
Item Description, model Quantity
1000BASE-T Tests
1000BASE-T
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
least 600 MHz bandwidth
Arbitrary waveform generator R&S RTO-B6/R&S RTP-B6/Tabor
WX2182B/Tabor WX2182C
Ethernet test fixture, "Resistive Load with
Distortion source" section
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 1
R&S RT‑ZF2 1
Performing the Test
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select "Differential Output Templates (40.6.1.2.3)" under "With Disturber".
1
1
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1000BASE-T Tests
1000BASE-T
3. Click "Test Checked".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
Disturbing Signal
The disturbing signal is a standard 2.8 Vpp 31.25 MHz sine wave. It is recommended
to use the indicated HAMEG or Tabor arbitrary waveform generator to create the disturbing signal.
The disturbing signal is calibrated on the "Resistive Load with Distortion Source" section of the R&S RT‑ZF2 Ethernet test fixture. The disturbing signal under calibration is
measured at X502 to X505.
The test is also performed on the "Resistive Load with Distortion Source" section of the
R&S RT‑ZF2 Ethernet test fixture. The output waveform measured at X506 is attenuated by a voltage divider. It is not required to compensate for the attenuation because
the attenuation is linear, and the voltage ratio of the output waveform is used in this
test.
Measurements
The test waveform requirements for the "Differential Output Templates" test with disturber are the same as for the no disturber test, see "Measurements" on page 44.
After acquiring the waveforms at the six trigger points (A, B, C, D, F and H), the software uses a MATLAB script to remove the disturbing signal. This is done by determin-
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ing the best fit of a sine wave at the fundamental frequency of the disturbing signal and
then subtracting that sine wave from the measured waveform.
After removing the disturbing signal, the software downloads the measured waveform
from the oscilloscope to perform averaging over N waveforms. The software then
uploads the averaged waveform back to the oscilloscope and uses the same method
as without a disturber to find the best fit to the specified template.
4.3.5 Jitter Master Mode
The "Jitter Master Mode" tests verify that the jitter of DUT is within the specified range.
The DUT is in master mode.
4.3.5.1 No TX_CLK
Test Equipment
Table 4-12: Equipment for Jitter Master Mode and Clock Frequency test, no TX_CLK
1000BASE-T Tests
1000BASE-T
Item Description, model Quantity
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with
at least 600 MHz bandwidth
Ethernet test fixture, "Jitter Slave Test
1000BaseT" section
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 2
R&S RT‑ZF2 1
1
Performing the Test
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select "Jitter Master Mode (40.6.1.2.5) and Clock Frequency (40.6.1.2.6)" under
"No TX_CLK".
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3. Click "Test Checked".
1000BASE-T Tests
1000BASE-T
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
Measurements
For "Jitter Master Mode and Clock Frequency" test, the DUT has to transmit a test
mode 2 waveform. Master and slave must be synchronized.
Figure 4-8: Test mode 2 waveform
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Jitter is measured at the edge positions. Due to large amount of data, the waveform
data is processed segment by segment. One segment comprises 100k samples.
This test consists of the following measurements:
●
Unfiltered jitter for master mode: The difference of the DUT transmit clock
(TX_TCLK) to its averaged reference. Peak to peak value is unfiltered jitter.
Results within limit are considered pass, results beyond limit are considered inconclusive.
●
Filtered jitter for master mode: waveform from above step filtered by a 5 kHz highpass filter. Results beyond limit are considered fail, results within limit are considered inconclusive.
●
The transmit clock frequency: checks if the quinary symbol transmission rate on
each pair of the master PHY is 125.00 MHz ± 0.01%.
4.3.5.2 With TX_CLK
Test Equipment
1000BASE-T Tests
1000BASE-T
Table 4-13: Equipment for Jitter Master Mode test, with TX_CLK
Item Description, model Quantity
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with
at least 600 MHz bandwidth
Ethernet test fixture, "Resistive Load" section R&S RT‑ZF2 1
Differential probe at least 1 GHz bandwidth 1
Single-ended probe at least 1 GHz bandwidth 1
DUT the device you want to test 2
1
Performing the Test
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select "Jitter Master Mode Unfiltered (40.6.1.2.5)" and/or "Jitter Master Mode Filtered (40.6.1.2.5)" under "With TX_CLK".
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1000BASE-T Tests
1000BASE-T
3. Click "Test Checked".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
Measurements
For "Jitter Master Mode" test, the DUT has to transmit a test mode 2 waveform, see
Figure 4-8. Master and slave must be synchronized.
Jitter is measured at the edge positions. Due to the large amount of data, the waveform data is processed segment by segment. One segment is preset as 100k samples.
This test consists of the following measurements:
●
Jtxout: jitter between data and DUT transmit clock (TX_TCLK). Data and clock
waveforms are compared. The maximum difference between respective edges is
Jtxout.
●
Unfiltered jitter for master mode: The difference of the DUT transmit clock
(TX_TCLK) to its averaged reference. Peak to peak value is unfiltered jitter.
●
Filtered jitter for master mode: waveform from above step filtered by a 5 kHz highpass filter. Peak to peak value plus Jtxout is filtered jitter.
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4.3.6 Jitter Slave Mode
The "Jitter Slave Mode" tests verify that the jitter of DUT is within the specified range.
The DUT is in slave mode.
4.3.6.1 No TX_CLK
Test Equipment
Table 4-14: Equipment for Jitter Slave Mode test, no TX_CLK
Item Description, model Quantity
1000BASE-T Tests
1000BASE-T
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with
at least 600 MHz bandwidth
R&S Ethernet test fixture R&S RT‑ZF2 "Jitter Slave Test
1000BaseT" section
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 2
Performing the Test
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select "Jitter Slave Mode (40.6.1.2.5)" under "No TX_CLK".
1
1
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
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Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
Measurements
This test verifies that the jitter of DUT is within a certain range. The test requires the
DUT to transmit test mode 2 and 3 waveforms.
1000BASE-T Tests
1000BASE-T
Figure 4-9: Test mode 2 waveform
Jitter is measured at the edge positions. Due to large amount of data, the waveform
data is processed segment by segment. One segment comprises 100k samples.
This test consists of the following measurements:
●
Measure the DUT’s TM2 jitter relative to an unjittered reference, filter with 5KHz
high-pass filter, and record both the filtered and unfiltered peak-to-peak values.
●
Measure the DUT’s TM3 jitter relative to an unjittered reference. Subtract the unfiltered TM2 peak-to-peak jitter value. The result must be less than 1.4ns.
●
Filter the TM3 jitter with a 32KHz high-pass filter, subtract the filtered TM2 peak-topeak jitter value. The result must be less than 0.4ns.
4.3.6.2 With TX_CLK
Test Equipment
Table 4-15: Equipment for Jitter Slave Mode test, with TX_CLK
Item Description, model Quantity
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with
1
at least 600 MHz bandwidth
Ethernet test fixture, "Resistive Load" section R&S RT‑ZF2 1
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Item Description, model Quantity
Differential probe at least 1 GHz bandwidth 1
Single-ended probe at least 1 GHz bandwidth 2
Gigabit Ethernet jitter cable R&S RT-ZF2C 1
DUT the device you want to test 2
Performing the Test
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select "Jitter Slave Mode Filtered (40.6.1.2.5)" and/or "Jitter Slave Mode Unfiltered
(40.6.1.2.5)" under "With TX_CLK".
1000BASE-T Tests
1000BASE-T
3. Click "Test Checked".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
Measurements
For "Jitter Slave Mode" test, the DUT has to transmit a test mode 3 waveform. Master
and slave must be synchronized.
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1000BASE-T Tests
1000BASE-T
Figure 4-10: Test mode 3 waveform
Jitter is measured at the edge positions. Due to large amount of data, the waveform
data is processed segment by segment. One segment is preset as 100k samples.
This test consists of the following measurements:
●
Jtxout: jitter between data and DUT transmit clock (TX_TCLK). Data and clock
waveforms are compared. The maximum difference between respective edges is
Jtxout.
●
Unfiltered jitter for slave mode: The difference of the DUT transmit clock
(TX_TCLK) to the TX_CLK of the link partner. Peak to peak value is unfiltered jitter.
●
Filtered jitter for slave mode: waveform from above step filtered by a 32 kHz highpass filter. Peak to peak value plus Jtxout, minus the peak to peak value of link
partner’s TX_CLK difference to its averaged reference and filtered by 5KHz HPF, is
filtered jitter.
4.3.7 MDI Return Loss
The "MDI Return Loss" test verifies that the transmitter return loss of the DUT over the
frequency range of 1 MHz to 100 MHz is greater than the limits specified in IEEE
802.3-2008, subclause 40.8.3.1.
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4.3.7.1 Test Equipment
Table 4-16: Equipment for MDI Return Loss tests
Item Description, model Quantity
1000BASE-T Tests
1000BASE-T
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
Ethernet test fixture, "Twisted Pair Model"
section
Vector network analyzer
(optional, required only to perform an automatic test
DUT the device you want to test 1
4.3.7.2 Performing the Test
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select "MDI Return Loss (40.8.3.1)" under "Common".
1
least 600 MHz bandwidth
R&S RT‑ZF2 1
R&S ZNB/ZNC/ZND/ZVL 1
3. Click "Test Checked".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
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4.3.7.3 Measurements
Configure the DUT to "1000BASE-T Test Mode 4 signal (MASTER timing mode) data"
output.
During automatic testing, the program measures the S11 parameter on the VNA. It
should fall below the limit line plotted on the VNA from 1 MHz to 100 MHz.
During manual testing, the program checks if every point between 1 MHz and 100 MHz
in the result file (*.s1p or *.csv) falls below the limit required by the specification.
4.3.8 Common-mode Output Voltage
The "Common-mode Output Voltage" test verifies that the common mode voltage on
transmit pair (pair A) is less than 50 mV.
4.3.8.1 Test Equipment
1000BASE-T Tests
1000BASE-T
Table 4-17: Equipment for Common-mode Output Voltage tests
Item Description, model Quantity
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
Ethernet test fixture, "Common Mode Voltage " section
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 1
4.3.8.2 Performing the Test
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select "Common-mode Output Voltage (14.3.1.2.5)" under "Common".
1
least 600 MHz bandwidth
R&S RT‑ZF2 1
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3. Click "Test Checked".
1000BASE-T Tests
1000BASE-T
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
4.3.8.3 Measurements
The "Common-mode Output Voltage" test requires a common mode voltage waveform.
This waveform is similar to the test mode 4 waveform of 1000BASE-T tests.
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The oscilloscope measures the maximum and minimum voltages of the captured
waveform. The highest absolute value is considered as peak common mode voltage.
4.4 1000 BASE-T EEE Tests
The following list shows an overview of the needed equipment for performing the
1000BASE-T EEE test cases:
●
R&S RTO / R&S RTO6 /R&S RTP with at least 600 MHz bandwidth
●
R&S ScopeSuite software
●
Ethernet test fixture R&S RT-ZF5, "Directional Probe" section
●
1000BASE-T DUT with EEE support (e.g. Intel(R) 82579LM Gigabit Network Adaptor)
●
Link partner with EEE support (e.g. Intel(R) 82579LM Gigabit Network Adaptor)
● Quiet Time...............................................................................................................60
● Refresh Time Master Mode.....................................................................................62
● Refresh Time Slave Mode.......................................................................................64
● Wake State Levels.................................................................................................. 66
● Transmitter Timing Jitter with TX_TCLK in Master Mode........................................69
● Transmitter Timing Jitter with TX_TCLK in Slave Mode..........................................71
● Transmitter Timing Jitter without TX_TCLK in Master Mode...................................74
● Transmitter Timing Jitter without TX_TCLK in Slave Mode.....................................76
1000BASE-T Tests
1000 BASE-T EEE Tests
4.4.1 Quiet Time
1000BASE-T EEE mode saves power by putting the device into low-Power idle state.
The test verifies that the quiet time of the DUT is within its compliance range.
4.4.1.1 Test Equipment
Table 4-18: Equipment for Quiet Time test
Item Description, model Quantity
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
Ethernet test fixture,
"Directional Probe" section
DUT with EEE support e.g., Intel(R) 82579LM Gigabit Network
Link partner with EEE support e.g., Intel(R) 82579LM Gigabit Network
1
least 600 MHz bandwidth
R&S RT-ZF5 1
1
Adaptor
1
Adaptor
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4.4.1.2 Performing the Tests
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select the test case: "1000BASE-T-EEE" > "Quiet Time (78.2)"
1000BASE-T Tests
1000 BASE-T EEE Tests
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
4.4.1.3 Test Setup
A 1000BASE-T EEE link is set up between the DUT and link partner via test fixture
R&S RT-ZF5. The DUT must be forced to enter low-power idle mode.
A typical screenshot from R&S RTO / R&S RTO6 /R&S RTP during measurement is
shown in the figure below:
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1000BASE-T Tests
1000 BASE-T EEE Tests
4.4.1.4 Measurement
The quiet time is the duration the PHY stays in the quiet state.
It is measured as the amount of time in-between the refresh signals. It should be
greater than (20ms + 10us) and less than (24ms + 12us).
The final results reported are the maximum and minimum value based on multiple
times of measurement.
4.4.2 Refresh Time Master Mode
1000BASE-T EEE mode saves power by putting the device into low-power idle state.
The test verifies that the refresh time of the DUT in master mode is within its compliance range.
4.4.2.1 Test Equipment
Table 4-19: Equipment for Refresh Time Master Mode test
Item Description, model Quantity
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
1
least 600 MHz bandwidth
Ethernet test fixture, "Directional Probe" section R&S RT-ZF5 1
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Item Description, model Quantity
1000BASE-T Tests
1000 BASE-T EEE Tests
DUT with EEE support e.g., Intel(R) 82579LM Gigabit Network
Link partner with EEE support e.g., Intel(R) 82579LM Gigabit Network
4.4.2.2 Performing the Tests
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select the test case: "1000BASE-T-EEE" > "Refresh Time Master(78.2)"
1
Adaptor
1
Adaptor
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
4.4.2.3 Test Setup
A 1000BASE-T EEE link is set up between the DUT and link partner via test fixture
R&S RT-ZF5. The DUT must be forced to enter low-power idle mode. Ensure that the
DUT is operating in master mode.
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A typical screenshot from R&S RTO / R&S RTO6 /R&S RTP during measurement is
shown as below:
1000BASE-T Tests
1000 BASE-T EEE Tests
4.4.2.4 Measurement
Refresh time specifies the time that the DUT transmits the refresh signal before entering the quiet state. It is measured from the start of the Wake transient to the entry into
the WAIT_QUIET state.
It should be greater than 248.5us and less than 269.7us.
The final results reported are the maximum and minimum value based on multiple
times of measurement.
4.4.3 Refresh Time Slave Mode
1000BASE-T EEE mode saves power by putting the device into low-power idle state.
The test verifies that the refresh time of the DUT in slave mode is within its compliance
range.
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4.4.3.1 Test Equipment
Table 4-20: Equipment for Refresh Time Slave Mode test
Item Description, model Quantity
1000BASE-T Tests
1000 BASE-T EEE Tests
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
Ethernet test fixture, "Directional Probe" section R&S RT-ZF5 1
DUT with EEE support e.g., Intel(R) 82579LM Gigabit Network
Link partner with EEE support e.g., Intel(R) 82579LM Gigabit Network
4.4.3.2 Performing the Tests
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select the test case: "1000BASE-T-EEE" > "Refresh Time Slave (78.2)"
1
least 600 MHz bandwidth
1
Adaptor
1
Adaptor
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
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4.4.3.3 Test Setup
A 1000BASE-T EEE link is set up between the DUT and link partner via test fixture
R&S RT-ZF5. The DUT must be forced to enter low-power idle mode.
Ensure that the DUT is operating in slave mode.
A typical screenshot from R&S RTO / R&S RTO6 /R&S RTP during measurement is
shown as below:
1000BASE-T Tests
1000 BASE-T EEE Tests
4.4.3.4 Measurement
Refresh time specifies the time that the DUT transmits the refresh signal before entering the quiet state. It is measured from the start of the Wake transient to the entry into
the WAIT_QUIET state.
It should be greater than 198.5us and less than 219.7us.
The final results reported are the maximum and minimum value based on multiple
times of measurement.
4.4.4 Wake State Levels
1000BASE-T EEE mode saves power by putting the device into low-power idle state.
The test verifies the wake state levels of the DUT during the wake transient time are
within the compliance range.
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4.4.4.1 Test Equipment
Table 4-21: Equipment for Wake State Levels test
Item Description, model Quantity
1000BASE-T Tests
1000 BASE-T EEE Tests
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
Ethernet test fixture,
"Directional Probe" section
DUT with EEE support e.g., Intel(R) 82579LM Gigabit Network
Link partner with EEE support e.g., Intel(R) 82579LM Gigabit Network
4.4.4.2 Performing the Tests
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select the test case: "1000BASE-T-EEE" > "Wake State Levels (40.6.1.2.7)"
1
least 600 MHz bandwidth
R&S RT-ZF5 1
1
Adaptor
1
Adaptor
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
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Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
4.4.4.3 Test Setup
A 1000BASE-T EEE link is set up between the DUT and link partner via test fixture
R&S RT-ZF5. The DUT must be forced to enter low-power idle mode.
A typical screenshot from R&S RTO / R&S RTO6 /R&S RTP during measurement is
shown as below:
1000BASE-T Tests
1000 BASE-T EEE Tests
4.4.4.4 Measurement
The test verifies the WAKE state idle pattern at the beginning of the WAKE exceeds
65% of the transmit levels of the compliant idle signaling for a minimum of 500ns.
It measures the duration of wake transient which allows the local device to turn the circuitry back on and the remote device to detect a wake event and begin turning circuitry
back on.
It should exceed 435.5mV for a minimum of 500ns.
The final results reported are the maximum and minimum value based on multiple
times of measurement.
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4.4.5 Transmitter Timing Jitter with TX_TCLK in Master Mode
1000BASE-T EEE mode saves power by putting the device into low-power idle state.
The test verifies the unfiltered jitter on the TX_TCLK of the DUT in master mode during
LPI mode shall be within its compliance range.
4.4.5.1 Test Equipment
Table 4-22: Equipment for Transmitter Timing Jitter with TX_TCLK, Master Mode test
Item Description, model Quantity
1000BASE-T Tests
1000 BASE-T EEE Tests
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
Ethernet test fixture,
"Directional Probe" section
DUT with EEE support e.g., Intel(R) 82579LM Gigabit Network
Link partner with EEE support e.g., Intel(R) 82579LM Gigabit Network
4.4.5.2 Performing the Tests
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select the test case: "1000BASE-T-EEE" > "Transmitter Timing Jitter With
TX_TCLK (Master) (40.6.1.2.5) "
1
least 600 MHz bandwidth
R&S RT-ZF5 1
1
Adaptor
1
Adaptor
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1000BASE-T Tests
1000 BASE-T EEE Tests
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
4.4.5.3 Test Setup
A 1000BASE-T EEE link is set up between the DUT and Link Partner via test fixture
R&S RT-ZF5. The DUT must be forced to enter low-power idle mode.
Ensure that the DUT is operating in master mode.
A typical screenshot from R&S RTO / R&S RTO6 /R&S RTP during measurement is
shown as below:
70User Manual 1317.7202.02 ─ 16
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1000BASE-T Tests
1000 BASE-T EEE Tests
4.4.5.4 Measurement
It measures the unfiltered jitter on the DUT’s TX_TCLK during LPI mode, with the
exception that clock edges corresponding to the WAIT_QUIET, QUIET, WAKE and
WAKE_SILENT states are not considered in the measurement.
As the jitter may be measured block by block. Max of peak-to-peak jitter is reported as
the final result.
It should be less than 1.4ns.
4.4.6 Transmitter Timing Jitter with TX_TCLK in Slave Mode
1000BASE-T EEE mode saves power by putting the device into low-power idle state.
The test verifies the unfiltered jitter on the TX_TCLK of the DUT in slave mode during
LPI mode shall be within its compliance range.
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4.4.6.1 Test Equipment
Table 4-23: Equipment for Transmitter Timing Jitter with TX_TCLK, Slave Mode test
Item Description, model Quantity
1000BASE-T Tests
1000 BASE-T EEE Tests
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
Ethernet test fixture,
"Directional Probe" section
DUT with EEE support e.g., Intel(R) 82579LM Gigabit Network
Link partner with EEE support e.g., Intel(R) 82579LM Gigabit Network
4.4.6.2 Performing the Tests
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select the test case: "1000BASE-T-EEE" > "Transmitter Timing Jitter With
TX_TCLK (Slave) (40.6.1.2.5) "
1
least 600 MHz bandwidth
R&S RT-ZF5 1
1
Adaptor
1
Adaptor
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
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Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
4.4.6.3 Test Setup
A 1000BASE-T EEE link is set up between the DUT and link partner via test fixture
R&S RT-ZF5. The DUT must be forced to enter low-power idle mode.
Ensure that the DUT is operating in slave mode.
A typical screenshot from R&S RTO / R&S RTO6 /R&S RTP during measurement is
shown as below:
1000BASE-T Tests
1000 BASE-T EEE Tests
4.4.6.4 Measurement
It measures the unfiltered jitter on the DUT’s TX_TCLK during LPI mode, with the
exception that clock edges corresponding to the WAIT_QUIET, QUIET, WAKE and
WAKE_SILENT states are not considered in the measurement.
As the jitter may be measured block by block. Max of peak-to-peak jitter is reported as
the final result.
It should be less than 1.4ns.
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4.4.7 Transmitter Timing Jitter without TX_TCLK in Master Mode
1000BASE-T EEE mode saves power by putting the device into low-power idle state.
When there is no access to the TX_TCLK, an alternative method is to measure the jitter present on the LPI signaling itself while the DUT is operating in master mode.
4.4.7.1 Test Equipment
Table 4-24: Equipment for Timing Jitter without TX_TCLK, Master Mode test
Item Description, model Quantity
1000BASE-T Tests
1000 BASE-T EEE Tests
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
Ethernet test fixture,
"Directional Probe" section
DUT with EEE support e.g., Intel(R) 82579LM Gigabit Network
Link partner with EEE support e.g., Intel(R) 82579LM Gigabit Network
4.4.7.2 Performing the Tests
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select the test case: "1000BASE-T-EEE" > "Transmitter Timing Jitter Without
TX_TCLK (Master) (40.6.1.2.5) "
1
least 600 MHz bandwidth
R&S RT-ZF5 1
1
Adaptor
1
Adaptor
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1000BASE-T Tests
1000 BASE-T EEE Tests
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
4.4.7.3 Test Setup
A 1000BASE-T EEE link is set up between the DUT and Link Partner via test fixture
R&S RT-ZF5. The DUT must be forced to enter low-power idle mode.
Ensure that the DUT is operating in master mode.
A typical screenshot from R&S RTO / R&S RTO6 /R&S RTP during measurement is
shown as below:
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1000BASE-T Tests
1000 BASE-T EEE Tests
4.4.7.4 Measurement
It directly measures the jitter based on the timing information extracted from the LPI
signaling, with the exception that timing information corresponding to the WAIT_QUIET,
QUIET, WAKE and WAKE_SILENT states are not considered in the measurement.
As the jitter may be measured block by block, max of peak-to-peak jitter is reported as
the final result.
It should be less than 1.4ns.
4.4.8 Transmitter Timing Jitter without TX_TCLK in Slave Mode
1000BASE-T EEE mode saves power by putting the device into low-power idle state.
When there is no access to the TX_TCLK, an alternative method is to measure the jitter present on the LPI signaling itself while the DUT is operating in slave mode.
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4.4.8.1 Test Equipment
Table 4-25: Equipment for Timing Jitter without TX_TCLK, Slave Mode test
Item Description, model Quantity
1000BASE-T Tests
1000 BASE-T EEE Tests
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
Ethernet test fixture,
"Directional Probe" section
DUT with EEE support e.g., Intel(R) 82579LM Gigabit Network
Link partner with EEE support e.g., Intel(R) 82579LM Gigabit Network
4.4.8.2 Performing the Tests
1. Start the test as described in Chapter 4.1, "Starting 1000BASE-T Tests",
on page 25.
2. Select the test case: "1000BASE-T-EEE" > "Transmitter Timing Jitter Without
TX_TCLK (Slave) (40.6.1.2.5) "
1
least 600 MHz bandwidth
R&S RT-ZF5 1
1
Adaptor
1
Adaptor
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
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Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
4.4.8.3 Test Setup
A 1000BASE-T EEE link is set up between the DUT and link partner via test fixture
R&S RT-ZF5. The DUT must be forced to enter low-power idle mode.
Ensure that the DUT is operating in slave mode.
A typical screenshot from R&S RTO / R&S RTO6 /R&S RTP during measurement is
shown as below:
1000BASE-T Tests
1000 BASE-T EEE Tests
4.4.8.4 Measurement
It directly measures the jitter based on the timing information extracted from the LPI
signaling, with the exception that timing information corresponding to the WAIT_QUIET,
QUIET, WAKE and WAKE_SILENT states are not considered in the measurement.
As the jitter may be measured block by block, max of peak-to-peak jitter is reported as
the final result.
It should be less than 1.4ns.
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5 100BASE-TX Tests
100BASE-TX Ethernet compliance tests require option R&S RTO/RTO6/RTP-K22.
100BASE-TX EEE tests require also option R&S RTO/RTO6/RTP-K86.
5.1 Starting 100BASE-TX Tests
Before you run the test, complete the following actions:
●
Initial setup of the equipment, see Chapter 2.2, "Installing Software and License",
on page 11
●
LAN connection of the oscilloscope and the computer running the R&S ScopeSuite, see Chapter 2.5, "Connecting the R&S RTO/RTO6/RTP", on page 12
●
VNA connection for Transmitter and Receiver Return Loss tests, see Chapter 2.7,
"Connecting the Vector Network Analyzer", on page 15.
100BASE-TX Tests
Test Configuration for Ethernet 100BASE-TX
1. Select "Ethernet" in the R&S ScopeSuite start window.
2. In the "Session Selection" dialog, set "Select Type" > "100BASE-TX".
3. Add a new test session and open it, see Chapter 3.1, "Starting a Test Session",
on page 20.
4. Check the test configuration settings and adjust them, if necessary. See:
● Chapter 5.2, "Test Configuration for Ethernet 100BASE-TX", on page 79
● Chapter 3.2.1.1, "Limit Manager", on page 23
5. Select/check the test cases you want to run and click "Test Single"/"Test checked".
6. A step-by step guide explains the following individual setup steps. When you have
finished all steps of the step-by-step guide, the compliance test runs automatically.
5.2 Test Configuration for Ethernet 100BASE-TX
Open a "100BASE-TX" session.
The test configuration consists of some test-specific configuration settings.
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100BASE-TX Tests
Test Configuration for Ethernet 100BASE-TX
Figure 5-1: Configuration for 100BASE-TX compliance tests
Average Count
Defines the number of waveforms which the oscilloscope acquires to calculate the
average waveform (average count).
Increasing the number of waveforms results in more accurate measurement results but
also in longer test execution time. If you are unsure, use the default values.
# of Acqs for Eye Diagram
Defines the number of waveforms which the oscilloscope acquires to form an eye diagram. The eye diagram is used to fit the template in the AOI Template test
Increasing the number of waveforms results in more accurate measurement results but
also in longer test execution time. If you are unsure, use the default values.
# of Acqs for Jitter Meas
Defines the number of waveforms which the oscilloscope acquires to form a histogram.
The histogram is used to measure the jitter in the Total Transmit Jitter test.
Increasing the number of waveforms results in more accurate measurement results but
also in longer test execution time. If you are unsure, use the default values.
Expert Mode
If enabled, the "Expert Mode" allows you to bypass the guided steps of the test case.
VNA Port
Selects the VNA channel for return loss testing.
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Test Pattern Generation
Selects the source of the test pattern generation.
Select "Link Partner" if you are using another 100BASE-TX device(link partner) for the
pattern generation. The Twisted Pair Model section of the test fixture is used.
Select "DUT Software" if the pattern is generated by a software of your DUT.The
Resistive Load section of the test fixture is used.
HD Mode
Enables the higher digital resolution mode. Requires option R&S RTO / R&S
RTO6 /R&S RTP-K17.
5.3 100BASE-TX
The following table shows an overview of the needed equipment for performing the
100BASE-TX test cases. A prerequisite is also a R&S RTO / R&S RTO6 /R&S RTP
with at least 600 MHz bandwidth, the R&S ScopeSuite software and a 1000BASE-TX
DUT.
100BASE-TX Tests
100BASE-TX
Table 5-1: Equipment for 100BASE-TX Ethernet compliance tests
Amplitude Domain Tests
(9.1.2.2, 9.1.3 and 9.1.4)
Rise and Fall Times
(9.1.6)
Peak to Peak Duty Cycle Distortion
(9.1.8)
Peak to Peak Transmit Jitter
(9.1.9)
Active Output Interface Template
(Annex J)
Transmitter Clock Frequency
(24.2.3.4)
Differential
probe
1
at least 2
GHz band-
width
1
at least 2
GHz band-
width
Test fixture Additional instruments
R&S RT-ZF2 Optional:
R&S RT-ZF2 Optional:
R&S RTO / R&S
RTO6 /R&S RTP-K17
R&S RTO / R&S
RTO6 /R&S RTP-K17
R&S RTO / R&S
RTO6 /R&S RTP-K13
Transmitter Return Loss
(9.1.5)
Receiver Return Loss
(9.2.2)
- R&S RT-ZF2
Section:
Twisted Pair Model
VNA:
R&S ZNB or
R&S ZNC or
R&S ZND or
R&S ZVL
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● Amplitude Domain Tests......................................................................................... 82
● Rise and Fall Times................................................................................................ 85
● Peak to Peak Duty Cycle Distortion........................................................................ 88
● Peak to Peak Transmit Jitter...................................................................................92
● Active Output Interface Template............................................................................ 94
● Transmitter Clock Frequency..................................................................................96
● Transmitter Return Loss..........................................................................................98
● Receiver Return Loss..............................................................................................99
5.3.1 Amplitude Domain Tests
The "Amplitude Domain" tests verify that the differential output voltage, waveform overshoot and amplitude symmetry of the DUT are within the conformance limits specified
in ANSI X3.263 standards, section 9.1.2.2, 9.1.3 and 9.1.4.
5.3.1.1 Test Equipment
Table 5-2: Equipment for Amplitude Domain Tests
100BASE-TX Tests
100BASE-TX
Item Recommended model Quantity
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
Ethernet test fixture, "Twisted Pair Model"
(TPM) section or "Resistive Load" section
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 1
5.3.1.2 Performing the Test
1. Start the test as described in Chapter 5.1, "Starting 100BASE-TX Tests",
on page 79.
2. Select "Amplitude Domain Tests (9.1.2.2, 9.1.3 and 9.1.4)".
1
least 600 MHz bandwidth
R&S RT‑ZF2 1
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100BASE-TX Tests
100BASE-TX
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
5.3.1.3 Measurements
Using TPM section
For "Amplitude Domain" tests using the "Twisted Pair Model" (TPM) section.
1. Connect the DUT and link partner (using the TPM section).
2. Configure the link partner to transmit at 100 Mbps.
The DUT transmitter should then emit the following waveform, on which the test is
performed:
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100BASE-TX Tests
100BASE-TX
Figure 5-2: Waveform for amplitude domain tests using the TPM section
Using resistive load section
For "Amplitude Domain" tests using the "Resistive Load" section, the DUT has to emit
waveforms having 12 bit or 14-bit times of no transition preceded by a 0 V to V
out
tran-
sition.
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100BASE-TX Tests
100BASE-TX
Figure 5-3: Waveform for amplitude domain tests and rise and fall time tests
The test consists of three measurements:
●
Differential output voltages
The mean differential voltage of the positive pulse and that of the negative pulse is
measured. The measurements are performed on an averaged waveform. To
exclude any overshoots, a measurement gate is defined 8 ns away from transition
mid points. The standard defines the following limits for voltage values: 950 mV to
1050 mV.
●
Signal amplitude symmetry
Calculates the ratio of the mean positive and negative voltages measured in "differential output voltages" measurement. This ratio should be between 0.98 and 1.02
as specified in the standard.
●
Waveform overshoot
Overshoot is measured for both positive and negative pulses. The overshoot
should be less than 5% of the mean differential output voltage as specified in the
standard.
5.3.2 Rise and Fall Times
The "Rise and Fall Times" tests verify that the response times of the DUT are within
the conformance limits specified in ANSI X3.263 standards, section 9.1.6.
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5.3.2.1 Test Equipment
Table 5-3: Equipment for Rise and Fall Time tests
Item Recommended model Quantity
100BASE-TX Tests
100BASE-TX
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
Ethernet test fixture, "Twisted Pair Model"
(TPM) section or "Resistive Load" section
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 1
5.3.2.2 Performing the Test
1. Start the test as described in Chapter 5.1, "Starting 100BASE-TX Tests",
on page 79.
2. Select "Rise and Fall Times (9.1.6)".
1
least 600 MHz bandwidth
R&S RT‑ZF2 1
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
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5.3.2.3 Measurements
Using TPM section
For "Rise and Fall Time" tests using the "Twisted Pair Model" (TPM) section.
1. Connect the DUT and link partner (using the TPM section).
2. Configure the link partner to transmit at 100 Mbps.
The DUT transmitter should then emit the following waveform, on which the test is
performed:
100BASE-TX Tests
100BASE-TX
Figure 5-4: Waveform for rise and fall time tests using the TPM section
Using resistive load section
For "Rise and Fall Time" tests using the "Resistive Load" section, the DUT has to emit
waveforms having 12 bit or 14-bit times of no transition preceded by a 0 V to V
out
tran-
sition.
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100BASE-TX Tests
100BASE-TX
Figure 5-5: Waveform for amplitude domain tests and rise and fall time tests
The test consists of three measurements each of the positive and negative pulses:
●
Rise time
The standard demands a rise time between 3 ns and 5 ns.
●
Fall time
The standard demands a fall time between 3 ns and 5 ns.
●
Maximum difference between all rise and fall times
The standard demands a maximum difference less than 500 ps.
5.3.3 Peak to Peak Duty Cycle Distortion
The" Peak to Peak Duty Cycle Distortion" tests verify the peak to peak duty cycle distortion of the DUT is within the conformance limits specified in ANSI X3.263 standards,
section 9.1.8.
5.3.3.1 Test Equipment
Table 5-4: Equipment for Peak to Peak Duty Cycle Distortion tests
Item Recommended model Quantity
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
least 600 MHz bandwidth
Ethernet test fixture, "Twisted Pair Model"
(TPM) section or "Resistive Load" section
R&S RT‑ZF2 1
1
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Item Recommended model Quantity
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 1
5.3.3.2 Performing the Test
1. Start the test as described in Chapter 5.1, "Starting 100BASE-TX Tests",
on page 79.
2. Select "Peak to Peak Duty Cycle Distortion (9.1.8)".
100BASE-TX Tests
100BASE-TX
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
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5.3.3.3 Measurements
Using TPM section
For "Peak to Peak Duty Cycle Distortion" tests using the "Twisted Pair Model" (TPM)
section.
1. Connect the DUT and link partner (using the TPM section).
2. Configure the link partner to transmit at 100 Mbps.
The DUT transmitter should then emit the following waveform, on which the test is
performed:
100BASE-TX Tests
100BASE-TX
Figure 5-6: Waveform for peak to peak duty cycle distortion tests using the TPM section
Using resistive load section
For "Peak to Peak Duty Cycle Distortion" tests using the "Resistive Load" section, the
DUT has to transmit MLT-3 encoded clock-like pattern waveforms.
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100BASE-TX Tests
100BASE-TX
Figure 5-7: MLT-3 encoded clock-like pattern waveform
The test measures the times when the averaged waveform crosses V
/2 volts.
out
Then the software calculates the peak to peak duty cycle distortion as follows:
Calculation of Tx values T1 = t2 – t1 – 16 ns
T2 = t3 – t2 – 16 ns
T3 = t4 – t3 – 16 ns
T4 = t3 – t1 – 16 ns
T5 = t4 – t2 – 16 ns
T6 = t4 – t1 – 16 ns
Peak to peak duty cycle distortion Maximum of Tx values
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The standard defines a maximum peak to peak duty cycle distortion of 500 ps.
5.3.4 Peak to Peak Transmit Jitter
The "Peak to Peak Transmit Jitter" tests verify that the total transmit jitter of the DUT is
within the conformance limits specified in ANSI X3.263 standards, section 9.1.9.
5.3.4.1 Test Equipment
Table 5-5: Equipment for Peak to Peak Transmit Jitter tests
Item Recommended model Quantity
100BASE-TX Tests
100BASE-TX
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
Ethernet test fixture, "Twisted Pair Model"
(TPM) section or "Resistive Load" section
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 1
5.3.4.2 Performing the Test
1. Start the test as described in Chapter 5.1, "Starting 100BASE-TX Tests",
on page 79.
2. Select "Peak to Peak Transmit Jitter (9.1.9)".
1
least 600 MHz bandwidth
R&S RT‑ZF2 1
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100BASE-TX
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
5.3.4.3 Measurements
Using TPM section
For "Peak to Peak Transmit Jitter" tests using the "Twisted Pair Model" (TPM) section,
1. Connect the DUT and link partner (using the TPM section)
2. Configure the link partner to transmit at 100 Mbps.
The DUT transmitter should then emit the following waveform, on which the test is
performed.
Using resistive load section
For "Peak to Peak Transmit Jitter" tests using the "Resistive Load" section, the DUT
has to transmit scrambled MLT-3 encoded idle pattern waveforms.
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Figure 5-8: Scrambled MLT-3 encoded idle pattern waveform
The test measures the total transmit jitter that is mainly caused by duty cycle distortion
and baseline wander. A distribution histogram is constructed with accumulated set of
points at waveform crossover. The peak to peak jitter is inferred from minimum and
maximum values in the tails of the histogram. Since the waveform is a three level signal, the jitter is measured at both upper and lower crossovers.
The standard defines a maximum jitter of 1.4 ns.
5.3.5 Active Output Interface Template
The "Active Output Interface (AOI) Template" tests verify that the transmitted signal
meets industry standards in terms of jitter, overshoot, rise time, fall time etc. ANSI
X3.263 standards Annex J defines the mask and also specifies a tolerance of 5% on
mask geometries.
5.3.5.1 Test Equipment
Table 5-6: Equipment for Active Output Interface Template tests
Item Recommended model Quantity
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
least 600 MHz bandwidth
Ethernet test fixture, "Twisted Pair Model"
(TPM) section or "Resistive Load" section
R&S RT‑ZF2 1
1
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Item Recommended model Quantity
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 1
5.3.5.2 Performing the Test
1. Start the test as described in Chapter 5.1, "Starting 100BASE-TX Tests",
on page 79.
2. Select "Active Output Interface Template (Annex J)".
100BASE-TX Tests
100BASE-TX
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
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5.3.5.3 Measurements
Using TPM section
For "AOI Template" tests using the "Twisted Pair Model" (TPM) section.
1. Connect the DUT and link partner (using the TPM section).
2. Configure the link partner to transmit at 100 Mbps.
The DUT transmitter should then emit the following waveform, on which the test is
performed.
Using resistive load section
For "AOI Template" tests using the "Resistive Load" section, the DUT has to transmit
scrambled MLT-3 encoded idle or halt line pattern waveform.
100BASE-TX Tests
100BASE-TX
Figure 5-9: Scrambled MLT-3 encoded idle pattern waveform
Both tests adjust the mask up to 5% of originally defined geometries and try to achieve
best fit with the waveform. If any violations of the mask occur, the test has failed. Mask
test is performed separately for positive and negative sides of the waveform.
5.3.6 Transmitter Clock Frequency
The "Transmitter Clock Frequency (24.2.3.4)" tests verify that the clock frequency is
within the conformance limits specified in ANSI X3.263 standards, section 24.2.3.4.
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5.3.6.1 Test Equipment
Table 5-7: Equipment for Transmitter Clock Frequency tests
Item Recommended model Quantity
100BASE-TX Tests
100BASE-TX
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
Ethernet test fixture, "Twisted Pair Model"
(TPM) section or "Resistive Load" section
Differential probe at least 1 GHz bandwidth 1
DUT the device you want to test 1
5.3.6.2 Performing the Test
1. Start the test as described in Chapter 5.1, "Starting 100BASE-TX Tests",
on page 79.
2. Select "Transmitter Clock Frequency (24.2.3.4)".
1
least 600 MHz bandwidth
R&S RT‑ZF2 1
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
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5.3.6.3 Measurements
This test case uses either software PLL (post processing method) or hardware CDR
(R&S RTO / R&S RTO6 /R&S RTP-K13 option) method to measure clock frequency.
5.3.7 Transmitter Return Loss
The "Transmitter Return Loss" test verifies that the transmitter return loss of the DUT
over the frequency range of 2 MHz to 80 MHz is greater than the limits specified in
ANSI X3.263-1995, section 9.1.5.
5.3.7.1 Test Equipment
Table 5-8: Equipment for Transmitter Return Loss test
Item Recommended model Quantity
100BASE-TX Tests
100BASE-TX
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
Ethernet test fixture, "Twisted Pair Model"
section
Vector network analyzer
(optional, required only to perform an automatic test)
DUT the device you want to test 1
5.3.7.2 Performing the Test
1. Start the test as described in Chapter 5.1, "Starting 100BASE-TX Tests",
on page 79.
2. Select "Transmitter Return Loss (9.1.5)".
1
least 600 MHz bandwidth
R&S RT‑ZF2 1
R&S ZNB/ZNC/ZND/ZVL 1
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100BASE-TX
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
Further steps:
●
Chapter 3.3, "Getting Test Results", on page 23
5.3.7.3 Measurements
Configure the DUT to "100BASE-TX scrambled MLT-3 encoded /I/ code-groups data"
output.
During automatic testing, the program measures the S11 parameter on the VNA. It
shall fall below the limit line plotted on the VNA from 2 MHz to 80 MHz.
During manual testing, the program checks if every point between 2 MHz and 80 MHz
in the result file (*.s1p or *.csv) falls below the limit required by the specification.
5.3.8 Receiver Return Loss
The "Receiver Return Loss" test verifies that the transmitter return loss of the DUT
over the frequency range of 2 MHz to 80 MHz is greater than the limits specified in
ANSI X3.263-1995, section 9.2.2.
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5.3.8.1 Test Equipment
Table 5-9: Equipment for Receiver Return Loss test
Item Recommended model Quantity
100BASE-TX Tests
100BASE-TX
Rohde & Schwarz oscilloscope R&S RTO / R&S RTO6 /R&S RTP with at
Ethernet test fixture, "Twisted Pair Model"
section
Vector network analyzer
(optional, required only to perform an automatic test)
DUT the device you want to test 1
5.3.8.2 Performing the Test
1. Start the test as described in Chapter 5.1, "Starting 100BASE-TX Tests",
on page 79.
2. Select "Receiver Return Loss (9.2.2)".
1
least 600 MHz bandwidth
R&S RT‑ZF2 1
R&S ZNB/ZNC/ZND/ZVL 1
3. Click "Test Single".
4. Follow the instructions of the step-by step guide.
When you have finished all steps, the compliance test runs automatically.
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