I am trying to figure out the pinout for the RJ45 on the bottom of the ACU. It is a fully populated RJ45, but I am assuming only 4 terminals are in use, 2 for the TCM loop and 2 for power. Any idea which are which?
I have an ACU, but no PS, I want to see if I can make work it work without the Polycom PS.
Thanks.
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