TPA-MHL-8R - Quick Start Guide
68-00224 - Rev. A4
Page 20
August 31, 2011
3.6
C-BUS Protocol Monitoring of MHL Source and MHL Sinks
You can passively monitor the C-BUS transactions between an MHL source device and
an MHL sink device using the TPA-MHL-8R and the Quantum Data 980 Protocol
Analyzer. Passively monitoring the C-BUS enables you to view the EDID exchange and
HDCP authentication transactions in real time.
For more details on the analysis features and functions of the 980, please refer to the
Quantum Data products web page at:
www.quantumdata.com/products/980.asp
. Refer
to the diagram below for a depiction of the test setup.
Use the procedure below to make the connections to the TPA-MHL-8R for passively monitoring
the C-Bus messages between an MHL source device and an MHL sink device.
1. Apply power to the TPA-MHL-8R using the power adapter provided.
2. Make the connections as shown in the diagram below. For this application you will be using
the section on the TPA-MHL-8R labeled
980 CONNECTIONS
– CBUS ANALYSIS.
TPA-MHL-8R
MHL Cable
BNC Coax cable
Source
MHL DUT
980 Protocol Analyzer
Real Time Mode
MHL HDTV
