On November 10, 2022 at 11:31, tomciara said...
My IR experience goes back to the early 90’s and never in my life have I seen a three conductor emitter.
With Xantech, you could buy a standard emitter or a visible emitter, with no difference at the plug. Supposing there were three conductor plugs, what would they connect to? A 789–44 connecting block didn’t have two and three conductor jacks, nor did URC, RTI, or any other IR base station/extender systems I can think of. RTI had multi-conductor jacks on the RP-6 processor for their proprietary dongles, but included 4” long adapter to make them 2-conductor emitter friendly.
I have some old emitters in my truck, including some single plug dual emitter options, and a twin-plug single emitter to connect to two separate control systems at once, but nothing in three conductor.
Electrically speaking, there is no need for a third conductor as the emitter for the equipment and the visible LED can simply be paralleled.
I think your memory might be getting a little foggy lol
Here ya go, Foggy, and Ernie :) -
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