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980 DP 1.4 Video Generator / Analyzer - User Guide
7 Auxiliary Channel Analyzer (ACA) Utilities
The Auxiliary Channel Analyzer (ACA) utilities enable you to view the DDC and aux channel traffic for DisplayPort
streams in real time or from stored real time log files. For DisplayPort, you can view the HDCP authentication
transactions, EDID exchanges, Link Training transactions, side band messages, MST negotiations, etc. in real
time with the ACA either through the embedded 980 GUI or the external 980 GUI Manager application running on a
host PC. You can view the transactions between the 980 DP Video Generator ports and a connected DP display
device and you can monitor the transactions between the 980 DP Video Generator's Analyzer port and a
connected DP source device.
There are three (3) Auxiliary Channel Analyzer utilities:
Auxiliary Channel Analyzer ("ACA") – Used for real time viewing auxiliary channel DisplayPort Aux
Chan data through the embedded 980 GUI Manager. You can also open existing ACA trace files stored on
the 980 Instrument.
ACA Remote Control - Used for viewing auxiliary channel DisplayPort data through the external 980 GUI
Manager. This application operates in sync with the Aux Channel Analyzer on the embedded display.
ACA Data Viewer - Used for viewing previously captured auxiliary channel data. You can view these
saved ACA traces and disseminate them to colleagues at other locations. These colleagues can then use
the ACA Data Viewer utility off-line without a 980 test instrument to view these transactions.
7.1
Aux Channel Analyzer (ACA) – For Real Time Viewing of Auxiliary Channel
Data
This subsection describes the Aux Channel Analyzer utility used for viewing the real time auxiliary channel data
through the embedded 980 GUI Manager.
7.1.1 Aux Channel Analyzer (ACA) – Panel Description
The Aux Channel Analyzer panel is described in the table below. There is a control menu panel on the right side.
The control menu and elements of the ACA panel are described in the following table.
Page 105
Rev. A1
June 16, 2017
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