The Auxiliary Channel Analyzer (ACA) Emulation + Passive Monitoring Hardware from Quantum Data passively monitors hot plug events, HDCP and EDID transactions, and CEC messages on an existing HDMI installation. The ability to passively monitor two separate sets of auxiliary data is especially useful for analyzing interoperability problems in an HDMI system consisting of three devices (source, repeater, and sink). The passive monitoring feature adds two upstream monitoring ports and two downstream monitoring ports in addition to emulation configuration.
The ACA features enable installers, lab technicians, and engineers to monitor DDC transactions such as HDCP and EDID as well as hot plug-related events while emulating device(s) in the HDMI system. The DDC transactions, CEC messages, and hot plug events are decoded and presented sequentially on the 780/780A Analyzer’s color display.
With the passive monitoring capability, users can connect to an HDMI system to passively monitor each side of a repeater device such as an A/V receiver. The 780 Analyzer's ACA feature offers the additional flexibility to monitor passively on one side of an HDMI system while emulating an HDMI device and monitoring its transactions on the other side. For example, the analyzer can emulate a set top box (STB) connected to the input side of an A/V receiver and monitor on the output side of the A/V receiver between it and the HDTV. Alternatively, troubleshooting personnel can emulate the HDTV connected to the output side of an A/V receiver while passively monitoring the upstream side between the STB and the input of the A/V receiver. In each case, the two sides of the HDMI-HDCP system transactions; upstream and downstream are shown interleaved on the GUI of the 780 Analyzer to provide an integrated view.