The ETS AV906 allows you to send two channels each of baseband video and audio in any direction desired. This capability yields, for instance, a bi-directional video and mono audio link, or many other configurations.
The ETS Baseband Video/Stereo Audio Baluns are utilized for point-to-point replacement of coaxial (video) and shielded (high impedance audio) cables with UTP wiring, Category 5 or better.