Is there a (rough) 'standard' for IR receiver 3.5mm jacks? I wish to use one of the many IR receiver to 3.5mm jack leads Ive seen for sale, however none mention the pin out. I'm sure all combinations are used somewhere, however there appears to be some kind of standard, as many buyer comments mention 'it works great with their XXX...'. I'm leaning towards Outer=GND, ring=+V, tip=DATA if I had to guess, though would rather not. Note (for moderators) Im not asking for opinion, but asking if a standard exists and if so what is it.
One of the original manufacturers of these sort of products is Keene Electronics. Their datasheet (here) shows the tip as signal out, ring as +5V supply and sleeve as ground, which doesn't seem particularly intuitive.
The datasheet also includes some information regarding systems used by alternative manufacturers: