HP 10GBASE-KR, 40GBASE-KR4 schematic

Agilent MOI for 10GBASE-KR/40GBASE-KR4 Interconnect Tests

Revision 1.00

Apr-21, 2014

10GBASE-KR/40GBASE-KR4 Agilent Method of Implementation (MOI) for 10GBASE-KR/40GBASE-KR4 Backplane Ethernet Interconnect Using Agilent E5071C ENA Option TDR

Agilent MOI for 10GBASE-KR/40GBASE-KR4 Interconnect Tests

Table of Contents

1. Revision History ............................................................................................................. 4

2. Purpose ........................................................................................................................... 4

3. References ...................................................................................................................... 4

4. Required Equipment ....................................................................................................... 4

5. Test Procedure ................................................................................................................ 5

5.1. Outline of Test Procedure ......................................................................................... 5

5.2. Instrument Setup ....................................................................................................... 7

5.2.1. Recalling a State File ......................................................................................... 7

5.2.2. Saving a State File ............................................................................................. 8

5.2.3. Loading a VBA Project File .............................................................................. 9

5.3. Calibration .............................................................................................................. 10

5.3.1. Time & Frequency Domain Calibration (Channel 1) ...................................... 10

5.3.2. Frequency Domain Calibration (Channel 2) ................................................... 12

5.4. Measurement .......................................................................................................... 14

5.4.1. Characteristic Impedance ................................................................................ 14

5.4.2. Differential Skew ............................................................................................. 15

5.4.3. Insertion Loss .................................................................................................. 15

5.4.4. Fitted Attenuation ............................................................................................ 16

5.4.5. Insertion Loss Deviation .................................................................................. 17

5.4.6. Return Loss ...................................................................................................... 17

5.4.7. Power Sum Differential Near-end Crosstalk (PSNEXT) ................................ 18

5.4.8. Power Sum Differential Far-end Crosstalk (PSFEXT) ................................... 19

5.4.9. Power Sum Differential Crosstalk (PSXT) ..................................................... 21

5.4.10. Insertion Loss to Crosstalk Ratio (ICR) .......................................................... 21

6. [Appendix] Manual Setup ............................................................................................ 22

6.1. Channel & Trace Setup (Channel 1) ....................................................................... 22

6.2. Characteristic Impedance ....................................................................................... 23

Agilent MOI for 10GBASE-KR/40GBASE-KR4 Interconnect Tests

6.3. Differential Skew .................................................................................................... 24

6.4. Insertion Loss (Liner Frequency Sweep) ............................................................... 25

6.5. Fitted Attenuation ................................................................................................... 25

6.6. Insertion Loss Deviation ......................................................................................... 25

6.7. Common Parameters Setup for Frequency-domain Measurements (Channel 2) ... 26

6.8. Insertion Loss (Log Frequency Sweep) .................................................................. 26

6.9. Return Loss ............................................................................................................. 27

6.10. Power Sum Differential Near-end Crosstalk (PSNEXT) ....................................... 27

6.11. Power Sum Differential Far-end Crosstalk (PSFEXT) .......................................... 28

6.12. Power Sum Differential Crosstalk (PSXT) ............................................................ 29

6.13. Insertion Loss to Crosstalk Ratio (ICR) ................................................................. 29

6.14. Defining Limit Line Tables .................................................................................... 29

Agilent MOI for 10GBASE-KR/40GBASE-KR4 Interconnect Tests

Revision

Comments

Issue Date

1.00

Initial Revision.

Apr-21, 2014

1. Revision History

2. Purpose

This test procedure was written to explain how to use the Agilent ENA Option TDR to make the 10GBASE-KR/40GBASE-KR4 Backplane Ethernet interconnect measurements.

3. References

 IEEE 802.3-2012 Section 5 (Jun. 2013)

4. Required Equipment

1. E5071C ENA Series Network Analyzer

 Option 4K5 (20 GHz)  Option TDR (Enhanced time domain analysis)

2. Test Fixture  n/a

3. 4-port ECal Module  N4433A (for E5071C-4K5)

4. Coaxial RF cables

5. 50 Ohm terminators (if required)

Agilent MOI for 10GBASE-KR/40GBASE-KR4 Interconnect Tests

5. Test Procedure

5.1. Outline of Test Procedure

1. Instrument Setup

 Automatic setup by recalling a state file or manual setup.  Post processing (calculation) by loading a VBA project file using user menu

function.

2. Calibration

 ECal Calibration

3. Measurements

4-1. Time-domain Measurements

- Characteristic Impedance

- Differential Skew

4-2. Frequency-domain Measurements

- Fitted Attenuation

- Insertion Loss

- Insertion Loss Deviation

- Return Loss

- Power Sum Differential Near-end Crosstalk (PSNEXT)

- Power Sum Differential Far-end Crosstalk (PSFEXT)

- Power Sum Differential Crosstalk (PSXT)

- Insertion Loss to Crosstalk Ratio (ICR)

Agilent MOI for 10GBASE-KR/40GBASE-KR4 Interconnect Tests

Note: Hard Keys (Keys on the E5071C’s front panel) are displayed in Blue color and Bold. (Example: Avg, Analysis) Note: Soft keys (Keys on the E5071C’s screen) are displayed in Bold. (Example: S11, Real, Transform) Note: Buttons of the TDR software are displayed in Green color and Bold. (Example: Trace,

Rise Time)

Note: Tabs of the TDR software are displayed in Brown color and Bold. (Example: Setup,

Trace Control)

Agilent MOI for 10GBASE-KR/40GBASE-KR4 Interconnect Tests

5.2. Instrument Setup

5.2.1. Recalling a State File

This section describes how to recall a state file of the E5071C that includes all the measurement settings for 10GBASE-KR/40GBASE-KR4 backplane Ethernet interconnect tests. The state file can be downloaded at: www.agilent.com/find/ena-tdr_ethernet-cabcon Copy the state file into the E5071C’s directory via USB mass storage device and recall the state file using the TDR software. Necessary parameters for testing are automatically set up in the E5071C. Refer to Appendix for the details about manual setup. If TDR setup wizard is shown, click Close button in the TDR setup wizard main window.

1. Open Setup tab.

2. Click Advanced Mode to show the dialog box.

3. A dialog box appears requesting for confirmation. Then 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 E5071C’s channel 1 is used for both time & frequency domain measurements with linear frequency sweep by using the TDR software at the bottom of the E5071C’s screen.

Agilent MOI for 10GBASE-KR/40GBASE-KR4 Interconnect Tests

The channel 2 is used for frequency-domain measurements with log frequency sweep by using the soft key on the right side of the screen or hard key on the front panel.

5.2.2. Saving a State File

All the measurement settings including calibration information can be saved in a state file (*.tdr). After performing calibration, all necessary calibration coefficients are saved in a state file and can be recalled for the next 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

Agilent MOI for 10GBASE-KR/40GBASE-KR4 Interconnect Tests

5.2.3. Loading a VBA Project File

The user menu function, which lets the users perform procedures assigned to specific soft keys, is useful to perform the post processing. This section describes how to load a VBA project file of the E5071C that perform the calculation for 10GBASE-KR/40GBASE-KR4 backplane Ethernet interconnect tests. The VBA project file can be downloaded at:

www.agilent.com/find/ena-tdr_ethernet-cabcon

Copy the VBA project file into the E5071C’s directory via USB mass storage device and recall the VBA project file.

1. Press Macro Setup > Load Project… to open the dialog box.

2. Specify a folder and a file name, and click Open.

3. Press Macro Setup > Select Macro > mdlUserMenu Main to load the VBA project.

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