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Keysight MOI for HDMI 1.4b Ethernet and Audio Return Channel (HEAC)
Cable Assembly Test

Revision 1.02
20-Oct 2014

Keysight Method of Implementation (MOI) for HDMI
1.4b Ethernet and Audio Return Channel (HEAC) Cable
Assembly Test Using Keysight E5071C ENA Option TDR

1
Keysight MOI for HDMI 1.4b Ethernet and Audio Return Channel (HEAC)
Cable Assembly Test

Table of Contents
1. Modification Record ....................................................................................................... 4
2. Purpose ........................................................................................................................... 4
3. References ...................................................................................................................... 4
4. Resource Requirements .................................................................................................. 5
5. Test Procedure ................................................................................................................ 6
5.1. Outline of Test Procedure ......................................................................................... 6
5.2. Instrument Setup ....................................................................................................... 7
5.2.1. Recalling State File ............................................................................................ 7
5.2.2. Running VBA macro program ........................................................................... 8
5.3. Screen Area and Cable Connection ........................................................................ 10
5.4. Calibration and Adjustment .................................................................................... 13
5.4.1. Time Domain Calibration ................................................................................ 13
5.4.2. Measure DUT Length ...................................................................................... 15
5.4.3. Rise time adjustment ....................................................................................... 16
5.4.4. Frequency Domain Calibration ....................................................................... 18
5.4.5. Perform Auto Port Extension........................................................................... 18
5.5. Measurement and Data Analysis ............................................................................ 19
5.5.1. Intra-Pair Skew ................................................................................................ 19
5.5.2. Differential Attenuation ................................................................................... 21
5.5.3. Differential Impedance .................................................................................... 22
5.5.4. Common Mode Impedance ............................................................................. 24
6. Appendix ...................................................................................................................... 25
6.1. Manual Setup for Time Domain Measurement ...................................................... 25
6.1.1. Starting Setup .................................................................................................. 25
6.1.2. Intra-Pair Skew ................................................................................................ 25
6.1.3. Differential Impedance .................................................................................... 27
6.2. Manual Setup for Frequency Domain Measurement .............................................. 31

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Keysight MOI for HDMI 1.4b Ethernet and Audio Return Channel (HEAC)
Cable Assembly Test

6.2.1. Channel and Trace Settings ............................................................................. 31
6.2.2. Attenuation ...................................................................................................... 31
6.3. Limit Test Settings .................................................................................................. 32
6.3.1. Turning On/Off Fail Sign ................................................................................ 32
6.3.2. Setting the Warning Beeper ............................................................................. 32
6.3.3. Defining the Limit Line ................................................................................... 32

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Keysight MOI for HDMI 1.4b Ethernet and Audio Return Channel (HEAC)
Cable Assembly Test

1. Modification Record

Revision Comments Issue Date
1.00 Initial release Oct 10, 2014
1.02 Fixed a few typos Oct 20, 2014

2. Purpose
This document is intended to provide the measurement procedures for High-Definition
Multimedia Interface (HDMI) Ethernet and Audio Return Channel (HEAC) cable
assemblies with Keysight E5071C ENA Option TDR. The procedures are designed to
perform tests equivalent to the methodologies defined in the HDMI Compliance Test
Specification (CTS) Version 1.4b.

3. References
High-Definition Multimedia Interface Specification Version 1.4b
High-Definition Multimedia Interface Compliance Test Specification Version 1.4b

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Keysight MOI for HDMI 1.4b Ethernet and Audio Return Channel (HEAC)
Cable Assembly Test

4. Resource Requirements
1. E5071C ENA Series Network Analyzer with Enhanced Time Domain Analysis Option
Note: Ensure that
- Test set option is any one of 440/445/460/465/480/485/4D5/4K5
- E5071C firmware revision A.11.31 or above is installed.
- E5071C-TDR application software revision A.01.56 or above is installed.
2. Electronic Calibration Module N4431B (for 440/445/460/465/480/485) or N4433A
(for 4D5/4K5)
3. 3.5 mm cables 8 GHz bandwidth or equivalent x4
4. Certified HDMI receptacle fixtures (ex. Keysight N1080B-H05) x2
5. Female to female adaptors to connect fixture and test cables (if necessary) x4

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Keysight MOI for HDMI 1.4b Ethernet and Audio Return Channel (HEAC)
Cable Assembly Test

5. Test Procedure
5.1.Outline of Test Procedure
1. Instrument Setup
2. Calibration and Adjustment
- Time domain calibration with the setup wizard in TDR application software
- Frequency domain calibration with the VBA macro program
3. Measurements and Data Analysis
Time Domain Measurements
- Intra-pair Skew Test
- Differential Impedance Test
- Common Mode Impedance Test
Frequency Domain Measurements
- Differential Attenuation Test

Note: Hard Keys (Keys located on the Front panel of E5071C) are displayed in Blue color
and Bold. (Example: Avg, Analysis)
Note: Soft keys (Keys on the screen) are displayed in Bold. (Example: S11, Real, Transform)
Note: Buttons (in the TDR or VBA) are displayed in Green color and Bold. (Example: Trace,
Rise Time)
Note: Tabs (in the TDR) are displayed in Brown color and Bold. (Example: Setup, Trace
Control)

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Keysight MOI for HDMI 1.4b Ethernet and Audio Return Channel (HEAC)
Cable Assembly Test

5.2.Instrument Setup
This section describes procedures for recalling the state file and VBA macro that support the
instrument setup. Download "HEAC cable assembly test package" from
http://www.keysight.com/find/ena-tdr_hdmi-cabcon.
Extract the zip file and transfer the extracted files to the instrument with a USB flash memory.
5.2.1. Recalling State File
1. If TDR setup wizard appears, click Close button on the wizard.
2. Open Setup tab (item1).
3. Click More Function (item2).
4. Click Advanced Mode (item3).

5. A dialog box appears requesting for confirmation. Then click Yes. (Clear the check box
for "Use Advanced Calibration Methods")

6. Click File (item4) and select Recall State to open the Recall State dialog box.
7. Specify a folder and a file name, and click Open.

For manual measurement setup, refer to Error! Reference source not found. Error!
Reference source not found..

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Keysight MOI for HDMI 1.4b Ethernet and Audio Return Channel (HEAC)
Cable Assembly Test

5.2.2. Running VBA macro program
1. Installing the VBA macro program

INSTR STATE Obtain the VBA macro program from
Keysight and install it on the E5071C.
Macro Macro Macro
Setup Run Break Press Save/Recall on the front
Save/ System Preset
Recall panel, then press the Explorer
soft key.
Using Explorer, copy the file to
the "D:

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