On January 13, 2016 at 12:05, 2nd rick said...
K2 keypads were made for Sonance by RTI.
The cable you need is the same as the early RTI cable for the 1st gen TheaterTouch T2.
I don't have one anymore, but maybe that info could help you broaden the search and find what you need.
Actually, the t2 cables were right angle and K2 cables were Straight with a completely different spacing.
Sonance K2 Keypad Pinout
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3 5 2