I have seen some amazing messes of twisted cables over the years. As an electrician the amount of wiring since the computer age, especially in older buildings on Wall Street is unbelievable. Dropped ceilings and raised floors have run out of room for running wiring. Elevators have been removed so the shafts can be used for cabling. Over the years as new wiring is added, wiring gets twisted in a giant knot.
Crews of electricians and the companies networking specialists spend an unbelievable amount of time and money trying to sort through years of cables to determine what can be safely removed to make room for new. All on overtime when trading has ended so as not to risk interrupting trillions of dollars in trading.
It's kind of ironic since when newly installed with wire racks the groups of wires are carefully pulled and sorted to look perfect, but within a few years as technology changes, so does the cabling. Lets not forget communications lines also. Cross connections after cables are punched down on blocks end up the same over the years.
This is similar to what I have installed over the years. Carefully and neatly done.
This is what many look like after a few years of the companies networking people have had their time in there.
