I know why fiber cables are replacing copper cables. The most important reason is the requirement for greatly increased bandwidth for high definition conferencing and HDTV systems. This requires higher speeds to satisfy information needs and fiber cable has much higher bandwidth available than copper cable.
Another important reason for this trend is that the connectors on the Fiber Optic Distribution Cabinets(LC especially) are smaller in size than those on copper cables and require less back plane real estate on the servers, switches, and routers necessary for the data system. This is the reason that manufacturers are switching to LC connectors on some of their servers and switches.
