The last time I ran into that violet/white cross connect, I was doing some wiring for a friend that was getting DSL installed in his shop. It was a disaster of old abandoned telephone wiring that I promptly ripped out. Nothing historic just miles of quad wire and silver satin used as station wire. Yuck. Anyway, the place has three drops, two single pair rubberized drops, and a 6 or so pair drop going into a metal hinged cover terminal (Western Electric, no less.) Some tech had used the x-conn wire to jump from the old style protectors on the two rubberized drops to an indoor plastic 6 pair NID. The 6 pair drop goes into and out of the metal terminal and into the ground to an adjacent building. The other building must have had a newer drop installed at some point, because when the Fairpoint tech showed up, he completely ignored the single pair drops and pulled the 6 pair drop out of the terminal and into a new 6 pair indoor NID, and my friend's DSL comes out of that.