Hello, I just recieved my Aluma U694 pro package this morning thank you. I own a ioptron CEM120 mount that has an aux port that I used to supply 12v power to, I bought extra 6 pin mini din connectors while I was waiting on the camera. I was going to make a short extension cable from the aux port to the power supply port on the camera, to eliminate cable drag. I read in the manual that pins 1,3,5 are +12v and 2,4,6 are ground. I decided to double check this with the included 120v power supply and according to my readings pins 1,3,5 are -12v. I double checked polarity using a AA battery and my meter is correct. I never hooked up the power supply to the camera yet.