Reply to Needing help with Alpha faders and buttons

Hello, Friends
Im new to this but im diving in head first
I bought some faders from the fine folk over at DJTT, and i'm trying to figure out how to find out which pin is which on the bottom of the fader.
I've got pin(s)
1
2
and
3
How do i find out which one is the ground, power, and output to connect to the midi fighter.

Also I bought extra buttons, How do it hook those up to the midi fighter
One connection to ground and one connection to output?

Thanks in advanced
dany
http://soundcloud.com/fndmntl