ISO/IEC 14165-114: Information Technology — Fibre Channel — Part 114: 100 MBIT/S Copper Physical Interface (FC-100-DF) This application Standard defines a 1 Gigabit per second signaling protocol using a 2-pair transmission scheme. The Standard specifies one pair to transmit and one pair to receive and is intended only for operation over 100 meter, 4-connector category 7/class F cabling topologies. With the publication of this application standard, Siemon's TERA? solution becomes the world's first and only cabling system capable of supporting two simultaneous Gigabit per second data applications over one 4-pair channel.