Thanks Matt,

My use of words may be uneducated - sorry :-). I was referring to the "brand specific" remote codes that are transmitted to the display. These would be "discrete" off - on codes rather than the toggle off/on code. I'm looking for a source of these codes.

I assume from what you are saying that an emitter can be connected directly to the IRF-6 output ports via my existing 2 conducter hard wiring. The RTI(T2) output is via RF to the the IRF-6 which forwards to the correct output port via a "hard wired" connection to an IR emitter on my display?