We moved into a building where the drop-ceiling had pretty much every generation of cable, going back to Twinax used by IBM 5250 terminals. Previous tenants ha

We moved into a building where the drop-ceiling had pretty much every generation of cable, going back to Twinax used by IBM 5250 terminals. Previous tenants had cut the connectors off and just shoved them up there when they moved out. Network documentation in this case? No way. The only option is to pull it all out for recycling, and start over.