A few days ago, I found a group of color charts that was put out by General Cable. The charts covered the standard 25 pair color code in addition to binder color combos and spare pairs.

One diagram covers cables with 4200 pairs. The document refers to any cable with more than 100 pairs as a Super-Unit.

What was it like working with very high pair count cable? I understand locating a certain pair required identifying specific binders. But what was it like installing/terminating such a cable? What technique was utilized to keep pairs from escaping from binders and getting mixed in with other groups?