Current- and next-generation networking applications rely on the bandwidth and throughput capabilities of optical-fiber cabling systems. Today there are more fiber-optic cabling options and configurations to choose from than ever before. This editorial guide includes reporting from Cabling Installation & Maintenance as well as work produced by Siemon. It provides detail on the capabilities and uses of different optical fiber types, fiber-connectivity options, and fiber-system architectures. The guide includes information on completed and in-development standards activity related to fiber-optic cabling systems.