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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
Revision 2.00
August 28, 2014
BroadR-Reach Link Segment
Keysight Technologies Method of Implementation (MOI)
for BroadR-Reach Link Segment Tests
Using E5071C ENA Option TDR
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
Table of Contents
1. Revision History ......................................................................................................... 3
2. Purpose ..................................................................................................................... 3
3. Reference .................................................................................................................. 3
4. Required Equipment................................................................................................... 3
5. Test Procedure ........................................................................................................... 4
5.1. Overiew of Test Procedure ......................................................................................... 4
5.2. Instrument Setup ....................................................................................................... 6
5.2.1. Recalling a State File .......................................................................................... 6
5.2.2. Saving a State File .............................................................................................. 7
5.3. Calibration ................................................................................................................. 8
5.3.1. Channel 1 Calibration .......................................................................................... 8
5.3.2. Channel 2 Calibration ........................................................................................ 10
5.4. Measurement .......................................................................................................... 11
5.4.1. Differential Characteristic Impedance ............................................................... 11
5.4.2. Mode Conversion .............................................................................................. 13
5.4.3. Insertion Loss ................................................................................................... 13
5.4.4. Return Loss ...................................................................................................... 14
5.4.5. Power Sum Alien Near End Crosstalk (PSANEXT) ............................................ 14
5.4.6. Power Sum Alien Attenuation to Crosstalk Ratio Far End (PSAACRF) .............. 16
5.4.7. Measurements of Other Cable Pairs ................................................................. 19
6. [Appendix] Manual Setup Procedure ....................................................................... 25
6.1. Channel & Trace Setup ............................................................................................ 25
6.2. Characteristic Impedance ........................................................................................ 25
6.3. Common Parameters Setup for Frequency-domain Measurements .......................... 27
6.4. Insertion Loss .......................................................................................................... 27
6.5. Return Loss ............................................................................................................. 27
6.6. Power Sum Alien Near End Crosstalk (PSANEXT) ................................................... 28
6.7. Power Sum Alien Attenuation to Crosstalk Ratio Far End (PSAACRF) ..................... 28
6.8. Defining Limit Line Tables ........................................................................................ 29
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
1. Revision History
Revision Comments Issue Date
2.00 Modifications for Specification V3.2 August 28, 2014
1.10 Added required software revision info December 13, 2013
1.00 Original August 16, 2013
2. Purpose
This test procedure provides a step-by-step guide on how to use the Keysight
Technologies ENA Option TDR to make the BroadR-Reach link segment measurements.
3. Reference
Open Alliance BroadR-Reach (OABR) Physical Layer Transceiver Specification for
Automotive Applications, V3.2, June 24, 2014, Broadcom Corporation
4. Required Equipment
1. E5071C ENA Series Network Analyzer
Option 440 or 445 (4.5 GHz) / 460 or 465 (6.5 GHz) / 480 or 485 (8.5 GHz) / 4D5
(14 GHz) / 4K5 (20 GHz)
Option TDR (Enhanced time domain analysis)
ENA Firmware Revision A.11.31 or later, Option TDR Revision A.01.57 or later
2. Test Fixtures
When using standard RJ45 connectors, the Keysight Technologies N5395C
Standard Ethernet Test Fixture is available (2/ea). For custom connectors, the
user needs to provide own fixtures.
3. 4-port ECal Module
N4431B (for E5071C-440/445/460/465/480/485)
N4433A (for E5071C-4D5/4K5)
4. Coaxial RF cables (4/ea)
5. 50 Ohm terminators (20/ea)
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
5. Test Procedure
5.1. Overiew of Test Procedure
1. Instrument Setup
Either automatic setup by recalling a state file, or manual setup.
2. Calibration
ECal Calibration and Fixture Compensation (Channel 1 measurements)
ECal Calibration and Port Extension (Channel 2 measurements)
3. Measurements
4-1. Time-domain Measurements
Characteristic Impedance
4-2. Frequency-domain Measurements
Insertion Loss
Return Loss
Mode Conversion
Power Sum Alien Near End Crosstalk (PSANEXT)
Power Sum Alien Attenuation to Crosstalk Ratio Far End (PSAACRF)
Note:
Hard keys (keys on the ENA front panel) are displayed in blue color and bold (example:
Avg).
Soft keys (keys on the ENA screen) are displayed in bold (example: S11).
Buttons of the TDR software are displayed in green color and bold (example: Trace).
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
Tabs of the TDR software are displayed in brown color and bold (example: Setup).
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
5.2. Instrument Setup
5.2.1. Recalling a State File
This section describes how to recall an instrument setup file on the ENA. The file includes
all the measurement settings for BroadR-Reach link segment tests. Copy the state file to
the ENA directory via an USB mass storage device and recall the state file using the TDR
software. Necessary parameters for testing are automatically set up on the ENA. Refer to
the Appendix for the details on manually setting up the instrument.
If the TDR Setup Wizard is shown, click the Close button in the TDR Setup Wizard main
window.
1. Open Setup tab.
2. Click Advanced Mode.
3. Click Yes. (Uncheck "Use Advanced Calibration Methods")
4. Click File and select Recall State to open the Recall State dialog box.
5. Specify a folder and a file name, and click Open.
The ENA channel 1 is controlled by the TDR software and Channel 2 is controlled using
the soft keys on the right side of the screen, or hard keys on the front panel.
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
5.2.2. Saving a State File
All the measurement settings, including calibration information, can be saved to a state
file (*.tdr). When saving a state file after performing calibration, all necessary calibration
coefficients can be saved in the state file and can be recalled for subsequent
measurements.
1. Press Save/Recall > Save Type and select State & Cal as a state file type.
2. Click File of the TDR software.
3. Select "Save State".
4. Enter file name and save the state file with calibration information.
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
5.3. Calibration
5.3.1. Channel 1 Calibration
The purpose of this step is to calibrate out the delay, loss, and mismatch of the test
cables for measurements in channel 1. Full calibration is performed by using the 4-port
ECal module at the end of test cables connected to the ENA test ports. After connecting
the test fixtures to the cables, the delay of the fixtures is removed by the fixture
compensation function.
5.3.1.1. ECal Calibration & Fixture Compensation
Calibration for Channel 1 is performed from the TDR software. The 4-port ECal module (i.e.
N4431B) is necessary for the calibration procedure.
1. Press Channel Next to select Channel 1.
2. Click Setup tab of the TDR software.
3. Click ECal to launch calibration wizard.
4. Connect all test cables to the ECal Module and click Calibrate. Once the green check
mark appears, click Next>.
5. Disconnect the ECal Module and connect the test fixtures to the test cables. Click
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
Fixture Comp to perform fixture compensation. Once the green check mark appears,
click Finish to complete the compensation.
6. Connect DUT to the test fixtures.
7. Click Setup tab.
8. Click Auto to launch the DUT Length dialog box.
9. Click Measure to measure the DUT length. Once the green check mark appears, click
Finish.
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
10. If the DUT Length value is less than 15 nsec, manually enter 15 nsec.
5.3.2. Channel 2 Calibration
The purpose of this step is to calibrate out the delay, loss, and mismatch of the test
cables for measurements in channel 2. Full calibration is performed by using the 4-port
ECal module at the end of test cables connected to the ENA test ports. After connecting
the test fixtures to the cables, the delay of the fixtures is removed by the auto port
extension function.
5.3.2.1. ECal Calibration
Calibration for the frequency domain measurement is performed from the ENA soft keys.
The 4-port ECal Module (i.e. N4431B) is necessary for the calibration procedure.
1. Press Channel Next key to select Channel 2.
2. Connect all test cables to the ECal Module.
3. Press Cal > ECal > 4-Port Cal.
5.3.2.2. Auto Port Extension
1. Connect the test fixtures to the test cables. Do not connect the DUT to the test
fixture (the fixture end is left open).
2. Press Cal > Port Extension > Auto Port Extension > Select Ports and check all ports
(Port 1 to Port 4).
3. Press Cal > Port Extension > Auto Port Extension > Measure Open and select All to
perform auto port extension.
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
5.4. Measurement
The time-domain and frequency-domain measurement procedure is detailed in this
section.
There is no FEXT or NEXT as BroadR-Reach is a one-pair solution. When multiple cable
pairs are bundled, the alien crosstalk (ANEXT/AFEXT) is an interference source. In order
to limit the noise for a 6-pair bundle UTP cable, the Power Sum Alien NEXT (PSANEXT)
and Power Sum Alien Attenuation to Crosstalk Ratio Far End (PSAACRF) is specified. For
alien crosstalk measurements, the DUT is the victim cable and the other 5-pairs of cables
are the aggressor cables. The 6-pair bundle should be connected to the A+/A-, B+/B-,
C+/C-, D+/D-, E+/E-, and F+/F- differential pairs of the test fixtures respectively.
5.4.1. Differential Characteristic Impedance
1. Connect the DUT to the ENA (Figure 5-1).
ENA Port 1 Port 2 Port 3 Port 4
Test Fixture TF1 A+ TF1 A- TF2 A+ TF2 A-
Note: Unused fixture ports should be terminated with 50 ohm terminators.
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
Figure 5-1 Characteristic Impedance Test Setup
2. Press Channel Next to select Channel 1.
3. Select Trace 1 (Tdd11).
4. Set rise time to 700 psec
5. Press Stop Single.
6. Confirm that the measurement passes the defined limits.
7. Select Trace 4 (Tdd22).
8. Set rise time to 700 psec
9. Confirm that the measurement passes the defined limits of Step 5.
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
5.4.2. Mode Conversion
1. Connect DUT to the ENA (Figure 5-1).
2. Press Channel Next to select Channel 1.
3. Select Trace 2 (Sdc11).
4. Press Stop Single.
5. Confirm that the measurement passes the defined limits.
6. Select Trace 3 (Sdc12).
7. Confirm that the measurement passes the defined limits of Step 5.
8. Select Trace 5 (Sdc22).
9. Confirm that the measurement passes the defined limits of Step 5.
10. Select Trace 6 (Sdc21).
11. Confirm that the measurement passes the defined limits of Step 5.
5.4.3. Insertion Loss
12. Connect DUT to the ENA (Figure 5-1).
13. Press Channel Next to select Channel 2.
14. Press Trigger > Single.
15. Press Trace Next to select Trace 1 (Sdd21).
16. Confirm that the measurement passes the defined limits.
17. Press Display > Data -> Mem to copy the trace data to memory. The measured
differential insertion loss is used for calculation of Power Sum Alien Attenuation to
Crosstalk Ratio Far End (PSAACRF).
18. Press Trace Next to select Trace 2 (Sdd12).
19. Confirm that the measurement passes the defined limits of Step 5.
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
20. Press Display > Data -> Mem to copy the trace data to memory.
5.4.4. Return Loss
1. Connect the DUT to the ENA (Figure 5-1).
2. Press Trigger > Single.
3. Press Trace Next to select Trace 3 (Sdd11).
4. Confirm that the measurement passes the defined limits.
5. Press Trace Next to select Trace 4 (Sdd22).
6. Confirm that the measurement passes the defined limits of Step 4.
5.4.5. Power Sum Alien Near End Crosstalk (PSANEXT)
In order to limit the near end crosstalk noise for a 6-pair bundle pair, the power sum alien
near end crosstalk (PSANEXT) is specified. The PSANEXT measurement procedure is
detailed in this section. The DUT (TF1 A+/A-) is the victim cable and the other 5 cables
are the aggressors (TF1 B+/B-, C+/C-, D+/D-, E+/E-, F+/F-).
1. Connect the DUT and aggressor cables to the ENA (Figure 5-2).
ENA Port 1 Port 2 Port 3 Port 4
Test Fixture TF1 A+ TF1 A- TF1 B+ TF1 B-
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
Figure 5-2 Power Sum Alien Near End Crosstalk (PSANEXT) Test Setup
2. Press Trace Next to select Trace 5 (ANEXT1).
3. Press Trigger > Single.
4. Press Display > Data -> Mem to copy the trace data to memory.
5. Connect the DUT and aggressor cables to the ENA.
ENA Port 1 Port 2 Port 3 Port 4
Test Fixture TF1 A+ TF1 A- TF1 C+ TF1 C-
6. Press Trace Next to select Trace 6 (ANEXT2).
7. Repeat Steps 3 and 4.
8. Connect the DUT and aggressor cables to the ENA.
ENA Port 1 Port 2 Port 3 Port 4
Test Fixture TF1 A+ TF1 A- TF1 D+ TF1 D-
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
9. Press Trace Next to select Trace 7 (ANEXT3).
10. Repeat Steps 3 and 4.
11. Connect the DUT and aggressor cables to the ENA.
ENA Port 1 Port 2 Port 3 Port 4
Test Fixture TF1 A+ TF1 A- TF1 E+ TF1 E-
12. Press Trace Next to select Trace 8 (ANEXT4).
13. Repeat Steps 3 and 4.
14. Connect the DUT and aggressor cables to the ENA.
ENA Port 1 Port 2 Port 3 Port 4
Test Fixture TF1 A+ TF1 A- TF1 F+ TF1 F-
15. Press Trace Next to select Trace 9 (ANEXT5).
16. Repeat Steps 3 and 4.
17. Press Trace Next to select Trace 10 (PSANEXT).
18. Press Display > Equation to turn the equation editor on.
19. Confirm the calculated PSANEXT passes the defined limits.
20. Repeat steps 1 through 19 for the following combinations of connections. The
PSANEXT at the far end (test fixture 2) between all the other cables is measured.
Trace Port 1 Port 2 Port 3 Port 4
Tr 5 (ANEXT1) TF2 A+ TF2 A- TF2 B+ TF2 B-
Tr 6 (ANEXT2) TF2 A+ TF2 A- TF2 C+ TF2 C-
Tr 7 (ANEXT3) TF2 A+ TF2 A- TF2 D+ TF2 D-
Tr 8 (ANEXT4) TF2 A+ TF2 A- TF2 E+ TF2 E-
Tr 9 (ANEXT5) TF2 A+ TF2 A- TF2 F+ TF2 F-
5.4.6. Power Sum Alien Attenuation to Crosstalk Ratio Far End (PSAACRF)
Power Sum Alien Attenuation to Crosstalk Ratio Far End (PSAACRF) is specified to limit
the crosstalk at the far end of the 6-pair bundled cable. Far-end crosstalk (FEXT) is noise
that appears at the far end of the victim cable (DUT) which is coupled from other
aggressor cables. The ELFEXT is equal to FEXT minus the insertion loss of the victim
cable (DUT). To limit the total FEXT coupled into the cable, the PSAACRF is specified as
the power sum of the individual ELFEXT aggressors. The measurement result of ELFEXT of
each aggressor cable is used to calculate PSAACRF.
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
The PSAACRF measurement procedure is detailed in this section. The DUT (connected to
A+/A- pair of test fixtures) is the victim cable and the other 5 cables are the aggressors
(connected to B+/B-, C+/C-, D+/D-, E+/E-, and F+/F- pairs of the test fixtures). Because
the insertion loss result is required for calculating EFLEXT, the insertion loss
measurement (5.4.2) should be performed before the PSAACRF measurement.
1. Connect the DUT and aggressor cables to the ENA (Figure 5-3).
ENA Port 1 Port 2 Port 3 Port 4
Test Fixture TF1 A+ TF1 A- TF2 B+ TF2 B-
Figure 5.3 Power Sum Alien Attenuation to Crosstalk Ratio Far End (PSAACRF) Test Setup
2. Press Trace Next to select Trace 11 (ELFEXT1).
3. Press Trigger > Single.
4. Press Display > Data -> Mem to copy the trace data to memory.
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
5. Connect the DUT and aggressor cables to the ENA.
ENA Port 1 Port 2 Port 3 Port 4
Test Fixture TF1 A+ TF1 A- TF2 C+ TF2 C-
6. Press Trace Next to select Trace 12 (ELFEXT2).
7. Repeat Steps 3 and 4.
8. Connect the DUT and aggressor cables to the ENA.
ENA Port 1 Port 2 Port 3 Port 4
Test Fixture TF1 A+ TF1 A- TF2 D+ TF2 D-
9. Press Trace Next to select Trace 13 (ELFEXT3).
10. Repeat Steps 3 and 4.
11. Connect the DUT and aggressor cables to the ENA.
ENA Port 1 Port 2 Port 3 Port 4
Test Fixture TF1 A+ TF1 A- TF2 E+ TF2 E-
12. Press Trace Next to select Trace 14 (ELFEXT4).
13. Repeat Steps 3 and 4.
14. Connect the DUT and aggressor cables to the ENA.
ENA Port 1 Port 2 Port 3 Port 4
Test Fixture TF1 A+ TF1 A- TF2 F+ TF2 F-
15. Press Trace Next to select Trace 15 (ELFEXT5).
16. Repeat Steps 3 and 4.
17. Press Trace Next to select Trace 16 (PSAACRF).
18. Press Display > Equation to turn the equation editor on.
19. Confirm the calculated PSAACRF at the far end (test fixture 2) passes the defined
limits.
The following steps guide how to make all the PSAACRF measurements of victim cable
(DUT) at the far end (test fixture 2).
20. Press Trace Next to select Trace 11 (ELFEXT1).
21. Press Display > Equation Editor... > Enter the equation "ELFEXT1 =
mem(11)/mem(1)".
22. Press Trace Next to select Trace 12 (ELFEXT2).
23. Press Display > Equation Editor... > Enter the equation "ELFEXT2 =
mem(12)/mem(1)".
24. Press Trace Next to select Trace 13 (ELFEXT3).
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
25. Press Display > Equation Editor... > Enter the equation "ELFEXT3 =
mem(13)/mem(1)".
26. Press Trace Next to select Trace 14 (ELFEXT4).
27. Press Display > Equation Editor... > Enter the equation "ELFEXT3 =
mem(14)/mem(1)".
28. Press Trace Next to select Trace 15 (ELFEXT5).
29. Press Display > Equation Editor... > Enter the equation "ELFEXT3 =
mem(15)/mem(1)".
30. Repeat steps 1 through 18 for the following combinations of connections. The
PSAACRF of a victim cable (DUT) at the far end (test fixture 2) between all the other 5
cables is measured.
Trace Port 1 Port 2 Port 3 Port 4
Trace 11 (ELFEXT1) TF2 A+ TF2 A- TF1 B+ TF1 B-
Trace 12 (ELFEXT2) TF2 A+ TF2 A- TF1 C+ TF1 C-
Trace 13 (ELFEXT3) TF2 A+ TF2 A- TF1 D+ TF1 D-
Trace 14 (ELFEXT4) TF2 A+ TF2 A- TF1 E+ TF1 E-
Trace 15 (ELFEXT5) TF2 A+ TF2 A- TF1 F+ TF1 F-
31. Press Trace Next to select Trace 16 (PSAACRF).
32. Press Display > Equation Editor... > Enter the equation "PSAACRF =
mag(mem(11)/mem(1))+mag(mem(12)/mem(1))+mag(mem(13)/mem(1)
+mag(mem(14)/mem(1) +mag(mem(15)/mem(1))".
33. Confirm the calculated PSAACRF at the far end (test fixture 2) passes the defined
limits of step 18.
5.4.7. Measurements of Other Cable Pairs
The measurements for cable pair 1 (A+/A-) are now complete. The same measurement s
should be performed for all cable pairs as well (B+/B-, C/C-, D+/D-, E+/E-, F+/F-).
Repeat measurements 5.4.1 to 5.4.6 for the following connections between the DUT and
ENA.
1. Connections for measurements on cable pair 2 (B+/B-)
Port 1 Port 2 Port 3 Port 4
Characteristic Impedance TF1 B+ TF1 B- TF2 B+ TF2 B-
Insertion Loss
Return Loss
PSANEXT (at near end, TF1) TF1 B+ TF1 B- TF1 A+ TF1 A-
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
TF1 B+ TF1 B- TF1 C+ TF1 C-
TF1 B+ TF1 B- TF1 D+ TF1 D-
TF1 B+ TF1 B- TF1 E+ TF1 E-
TF1 B+ TF1 B- TF1 F+ TF1 F-
PSANEXT (at far end, TF2) TF2 B+ TF2 B- TF2 A+ TF2 A-
TF2 B+ TF2 B- TF2 C+ TF2 C-
TF2 B+ TF2 B- TF2 D+ TF2 D-
TF2 B+ TF2 B- TF2 E+ TF2 E-
TF2 B+ TF2 B- TF2 F+ TF2 F-
PSAACRF (at near end, TF1) TF1 B+ TF1 B- TF2 A+ TF2 A-
TF1 B+ TF1 B- TF2 C+ TF2 C-
TF1 B+ TF1 B- TF2 D+ TF2 D-
TF1 B+ TF1 B- TF2 E+ TF2 E-
TF1 B+ TF1 B- TF2 F+ TF2 F-
PSAACRF (at far end, in TF2) TF2 B+ TF2 B- TF1 A+ TF1 A-
TF2 B+ TF2 B- TF1 C+ TF1 C-
TF2 B+ TF2 B- TF1 D+ TF1 D-
TF2 B+ TF2 B- TF1 E+ TF1 E-
TF2 B+ TF2 B- TF1 F+ TF1 F-
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
2. Connections for measurements on cable pair 3 (C+/C-)
Port 1 Port 2 Port 3 Port 4
Characteristic Impedance TF1 C+ TF1 C- TF2 C+ TF2 C-
Insertion Loss
Return Loss
PSANEXT (at near end, TF1) TF1 C+ TF1 C- TF1 A+ TF1 A-
TF1 C+ TF1 C- TF1 B+ TF1 B-
TF1 C+ TF1 C- TF1 D+ TF1 D-
TF1 C+ TF1 C- TF1 E+ TF1 E-
TF1 C+ TF1 C- TF1 F+ TF1 F-
PSANEXT (at far end, TF2) TF2 C+ TF2 C- TF2 A+ TF2 A-
TF2 C+ TF2 C- TF2 B+ TF2 B-
TF2 C+ TF2 C- TF2 D+ TF2 D-
TF2 C+ TF2 C- TF2 E+ TF2 E-
TF2 C+ TF2 C- TF2 F+ TF2 F-
PSAACRF (at near end, TF1) TF1 C+ TF1 C- TF2 A+ TF2 A-
TF1 C+ TF1 C- TF2 B+ TF2 B-
TF1 C+ TF1 C- TF2 D+ TF2 D-
TF1 C+ TF1 C- TF2 E+ TF2 E-
TF1 C+ TF1 C- TF2 F+ TF2 F-
PSAACRF (at far end, in TF2) TF2 C+ TF2 C- TF1 A+ TF1 A-
TF2 C+ TF2 C- TF1 B+ TF1 B-
TF2 C+ TF2 C- TF1 D+ TF1 D-
TF2 C+ TF2 C- TF1 E+ TF1 E-
TF2 C+ TF2 C- TF1 F+ TF1 F-
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
3. Connections for measurements on cable pair 4 (D+/D-)
Port 1 Port 2 Port 3 Port 4
Characteristic Impedance TF1 D+ TF1 D- TF2 D+ TF2 D-
Insertion Loss
Return Loss
PSANEXT (at near end, TF1) TF1 D+ TF1 D- TF1 A+ TF1 A-
TF1 D+ TF1 D- TF1 B+ TF1 B-
TF1 D+ TF1 D- TF1 C+ TF1 C-
TF1 D+ TF1 D- TF1 E+ TF1 E-
TF1 D+ TF1 D- TF1 F+ TF1 F-
PSANEXT (at far end, TF2) TF2 D+ TF2 D- TF2 A+ TF2 A-
TF2 D+ TF2 D- TF2 B+ TF2 B-
TF2 D+ TF2 D- TF2 C+ TF2 C-
TF2 D+ TF2 D- TF2 E+ TF2 E-
TF2 D+ TF2 D- TF2 F+ TF2 F-
PSAACRF (at near end, TF1) TF1 D+ TF1 D- TF2 A+ TF2 A-
TF1 D+ TF1 D- TF2 B+ TF2 B-
TF1 D+ TF1 D- TF2 C+ TF2 C-
TF1 D+ TF1 D- TF2 E+ TF2 E-
TF1 D+ TF1 D- TF2 F+ TF2 F-
PSAACRF (at far end, in TF2) TF2 D+ TF2 D- TF1 A+ TF1 A-
TF2 D+ TF2 D- TF1 B+ TF1 B-
TF2 D+ TF2 D- TF1 C+ TF1 C-
TF2 D+ TF2 D- TF1 E+ TF1 E-
TF2 D+ TF2 D- TF1 F+ TF1 F-
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
4. Connections for measurements on cable pair 5 (E+/E-)
Port 1 Port 2 Port 3 Port 4
Characteristic Impedance TF1 E+ TF1 E- TF2 E+ TF2 E-
Insertion Loss
Return Loss
PSANEXT (at near end, TF1) TF1 E+ TF1 E- TF1 A+ TF1 A-
TF1 E+ TF1 E- TF1 B+ TF1 B-
TF1 E+ TF1 E- TF1 C+ TF1 C-
TF1 E+ TF1 E- TF1 D+ TF1 D-
TF1 E+ TF1 E- TF1 F+ TF1 F-
PSANEXT (at far end, TF2) TF2 E+ TF2 E- TF2 A+ TF2 A-
TF2 E+ TF2 E- TF2 B+ TF2 B-
TF2 E+ TF2 E- TF2 C+ TF2 C-
TF2 E+ TF2 E- TF2 D+ TF2 D-
TF2 E+ TF2 E- TF2 F+ TF2 F-
PSAACRF (at near end, TF1) TF1 E+ TF1 E- TF2 A+ TF2 A-
TF1 E+ TF1 E- TF2 B+ TF2 B-
TF1 E+ TF1 E- TF2 C+ TF2 C-
TF1 E+ TF1 E- TF2 D+ TF2 D-
TF1 E+ TF1 E- TF2 F+ TF2 F-
PSAACRF (at far end, in TF2) TF2 E+ TF2 E- TF1 A+ TF1 A-
TF2 E+ TF2 E- TF1 B+ TF1 B-
TF2 E+ TF2 E- TF1 C+ TF1 C-
TF2 E+ TF2 E- TF1 D+ TF1 D-
TF2 E+ TF2 E- TF1 F+ TF1 F-
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
5. Connections for measurements on cable pair 6 (F+/F-)
Port 1 Port 2 Port 3 Port 4
Characteristic Impedance TF1 F+ TF1 F- TF2 F+ TF2 F-
Insertion Loss
Return Loss
PSANEXT (at near end, TF1) TF1 F+ TF1 F- TF1 A+ TF1 A-
TF1 F+ TF1 F- TF1 B+ TF1 B-
TF1 F+ TF1 F- TF1 C+ TF1 C-
TF1 F+ TF1 F- TF1 D+ TF1 D-
TF1 F+ TF1 F- TF1 E+ TF1 E-
PSANEXT (at far end, TF2) TF2 F+ TF2 F- TF2 A+ TF2 A-
TF2 F+ TF2 F- TF2 B+ TF2 B-
TF2 F+ TF2 F- TF2 C+ TF2 C-
TF2 F+ TF2 F- TF2 D+ TF2 D-
TF2 F+ TF2 F- TF2 E+ TF2 E-
PSAACRF (at near end, TF1) TF1 F+ TF1 F- TF2 A+ TF2 A-
TF1 F+ TF1 F- TF2 B+ TF2 B-
TF1 F+ TF1 F- TF2 C+ TF2 C-
TF1 F+ TF1 F- TF2 D+ TF2 D-
TF1 F+ TF1 F- TF2 E+ TF2 E-
PSAACRF (at far end, in TF2) TF2 F+ TF2 F- TF1 A+ TF1 A-
TF2 F+ TF2 F- TF1 B+ TF1 B-
TF2 F+ TF2 F- TF1 C+ TF1 C-
TF2 F+ TF2 F- TF1 D+ TF1 D-
TF2 F+ TF2 F- TF1 E+ TF1 E-
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
6. [Appendix] Manual Setup Procedure
The manual setup procedure for time and frequency domain measurements is detailed in
the section.
6.1. Channel & Trace Setup
If the Setup Wizard is shown after launching the TDR software, click the Close button.
1. Open Setup tab in the TDR software.
2. Click Preset and OK to preset the instrument.
3. Set DUT Topology to "Differential 2-Port" and click OK.
4. Click Advanced Mode>>.
5. A confirmation dialog box appears. Click Yes (Clear the check box for "Use Advanced
Calibration Methods").
6. Click Stop Single.
7. Press Display > Allocate Channels > .
8. Press Display > Num of Traces > 6
9. Press Display > Allocate Traces >
10. Press Channel Max to maximize the Channel 1 display.
6.2. Characteristic Impedance
1. Select Trace 1.
2. Open TDR/TDT tab.
3. Open Parameters tab.
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
4. Select "Time Domain" and "Differential" for Measure.
5. Select Format to "Impedance"
6. Click Tdd11.
7. Click the box below the left knob under Vertical. Set the vertical scale to "10
Ohm/div".
8. Click the box below the right knob under Vertical. Set the vertical center to "50 Ohm".
9. Open Trace Control tab.
10. Click Trace Settings Copy to launch trace copy dialog box.
11. Select the Trace 1 in the From list.
12. Select the Trace 4 in the To list.
13. Click Copy.
14. Click Close.
15. Select Trace 4.
16. Open Parameter tab
17. Click Tdd22
18. Select Trace 2
19. Open TDR/TDT tab
20. Open Parameters tab
21. Select "S-parameter" and "Differential" for Measure
22. Select Format to "Log Mag"
23. Click Sdc11
24. Open Trace Control tab
25. Click Trace Settings Copy to launch trace copy dialog box
26. Select the Trace 2 in the From list
27. Select the Trace 3, Trace 5, and Trace 6 in the To list
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
28. Click Copy
29. Click Close
30. Select Trace 3
31. Open Parameter tab
32. Click Sdc12
33. Select Trace 5
34. Open Parameter tab
35. Click Sdc22
36. Select Trace 6
37. Open Parameter tab
38. Click Sdc21
6.3. Common Parameters Setup for Frequency-domain Measurements
1. Press Channel Next to select Channel 2.
2. Press Start > Set value to "1 MHz"
3. Press Stop > Set value to "100 MHz"
4. Press Avg > IF Bandwidth > Set value to "10 kHz"
5. Press Display > Num of Traces > 16
6. Press Display > Allocate Traces > x16 (4 columns by 4 rows).
7. Press Analysis > Fixture Simulator and turn it ON.
6. Press Analysis > Fixture Simulator > Topology > Device > Bal-Bal
7. Press Analysis > Fixture Simulator > Topology > Port1 (bal) > 1-2
8. Press Analysis > Fixture Simulator > Topology > Port2 (bal) > 3-4
9. Press Analysis > Fixture Simulator > BalUn ON All Traces to enable mixed-mode
S-parameter (i.e. Sdd11) measurements on all traces.
6.4. Insertion Loss
1. Press Trace Next to select Trace 1
2. Press Meas > Sdd21
3. Press Trace Next to select Trace 2
4. Press Meas > Sdd12
6.5. Return Loss
1. Press Trace Next to select Trace 3
2. Press Meas > Sdd11
3. Press Trace Next to select Trace 4
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
4. Press Meas > Sdd22
6.6. Power Sum Alien Near End Crosstalk (PSANEXT)
1. Press Trace Next to select Trace 5
2. Press Meas > Sdd12
3. Press Trace Next to select Trace 6
4. Repeat Step 2
5. Press Trace Next to select Trace 7
6. Repeat Step 2
7. Press Trace Next to select Trace 8
8. Repeat Step 2
9. Press Trace Next to select Trace 9
10. Repeat Step 2
11. Press Trace Next to select Trace 10
12. Press Meas > Sdd12
13. Press Display > Equation Editor... > and enter the equation "PSANEXT =
mag(mem(5)) + mag(mem(6)) + mag(mem(7)) + mag(mem(8)) + mag(mem(9))
+ mag(mem(10))"
14. Check Enabled to enable the equation
15. Click Apply.
16. Click Close
6.7. Power Sum Alien Attenuation to Crosstalk Ratio Far End (PSAACRF)
1. Press Trace Next to select Trace 11
2. Press Display > Equation Editor... > Enter an equation "ELFEXT1 =
mem(11)/mem(2)"
3. Press Meas > Sdd12
4. Press Trace Next to select Trace 12
5. Press Display > Equation Editor... > Enter an equation "ELFEXT2 =
mem(12)/mem(2)"
6. Repeat Step 3
7. Press Trace Next to select Trace 13
8. Press Display > Equation Editor... > Enter an equation "ELFEXT3 =
mem(13)/mem(2)".
9. Repeat Step 3
10. Press Trace Next to select Trace 14
11. Press Display > Equation Editor... > Enter an equation "ELFEXT3 =
mem(14)/mem(2)".
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Keysight Technologies MOI for BroadR-Reach Link Segment Tests
12. Repeat Step 3
13. Press Trace Next to select Trace 15
14. Press Display > Equation Editor... > Enter an equation "ELFEXT3 =
mem(15)/mem(2)".
15. Repeat Step 3
16. Press Trace Next to select Trace 16
17. Press Meas > Sdd12
18. Press Display > Equation Editor... > Enter the equation "PSAACRF =
mag(mem(11)/mem(2)) + mag(mem(12)/mem(2)) + mag(mem(13)/mem(2)) +
mag(mem(14)/mem(2)) + mag(mem(15)/mem(2))"
19. Check Enabled to enable the equation on trace.
20. Click Apply.
21. Click Close.
6.8. Defining Limit Line Tables
1. Press Trace Next to select desired trace
2. Press Analysis > Limit Line and turn it ON to display limit lines.
3. Press Analysis > Edit Limit Line to edit the limit line table.
4. Press Analysis > Limit Test and turn it ON.
5. Press Analysis > Limit Test > Fail Sign to toggle the fail sign display. When turned on,
the Fail sign is displayed on the ENA screen when there is one or more limit tests
which have failed within the channel.
6. Press System > Misc Setup > Beeper > Beep Warning to toggle the warning beeper.
End of document/
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