Black = Tip
Red = Ring (R for Ring)
Use this with the ML10X to split each TRS stereo loop into 2 mono loops
A pair of cables is needed for both send and return. This cable will also allow you to connect a stereo source with left and right leads to the ML10X's TRS stereo input and output.
Use this with the Omniport Relay Interface to control two separate switch inputs that takes a Tip to Ground connection.