The ideal choice for data center, storage area network (SAN), local area network (LAN), and central office / headend applications, Sumitomo Electric Lightwave’s PrecisionFLEX panels facilitate easy installation, fiber access and maintenance for years of worry free service. The ideal choice for data center, storage area network (SAN), local area network (LAN), and central office / headend applications, Sumitomo Electric Lightwave’s PrecisionFLEX panels facilitate easy installation, fiber access and maintenance for years of worry free service.