FYI if you bought an elite projector screen (https://smile.amazon.com/gp/product/B01MQYTSGW/) and want it to go up and down when you turn the projector on and off, this is it Cable Half of your answer, it connects to the screen. The other half, which connects to the projector's "trigger out" is a 3.5mm 1/8 mono audio jack (e.g. https://smile.amazon.com/gp/product /B075SV1RHT), and you cut the cables and connect them together.
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