SFP (copper.optical; longwave, shortwave.WDM) – Datacom applications using Fast Ethernet, Gigabit Ethernet, 1x/2x/4x Fibre C hannel – Te lecom applications using OC -3/STM -1, OC -12/STM -4 and OC -48/STM -16 across all reaches Fe atures • 3.3 V operating voltage • Distances from very short links up to 100+ km • Wide operating temperature range • Metal enclosure for lower EMI • Digital diagnostics