The FlySky FS-I6 RC transmitter has provision to connect two transmitters together via a special trainer/student cable. A female S-Video connector presents 1=PPM OUT, 2=PPM IN, 3=TX, 4=RX, Case=GND signals to the trainer/student cable. What is the correct pinout of the trainer/student cable? I came here to find the answer rather than googling for an opinion. Thank you for your help.

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    \$\begingroup\$ Questions about the usage of consumer products are not really on topic here. It seems you've largely described what you found however - a traditional PPM stream encoding each channel in turn as you'd see in any writeup on traditional AM/FM/PPM R/C sets. Try an R/C enthusiast forum if you want more information. \$\endgroup\$ – Chris Stratton Dec 18 '18 at 5:35
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    \$\begingroup\$ Sorry, but this site is not an alternative to web searching in the way your edits admits was your goal, and that's doubly true for question categories that are off-topic to begin with. Try an R/C site, the question does not belong here, because it requires knowledge/experience of this particular consumer product and cannot be solved by applying engineering principles to the information presented. Someone might guess that you need a crossover configuration, but you need knowledge from someone who knows this product, not a guess. \$\endgroup\$ – Chris Stratton Dec 18 '18 at 16:09
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    \$\begingroup\$ I have been web searching for a definitive answer for several weeks. There are plenty of opinions out there and a lot of information that is just plain wrong. I was expecting a correct answer by someone who has such a cable and I can trust their answer is not an opinion. Sorry to clutter your site. \$\endgroup\$ – Dave Slater Dec 18 '18 at 19:32

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