Dense wavelength division multiplexing (DWDM) is a technology multiplexes data signals from a variety of sources, allowing the data to share one optical fiber while keeping the streams of data completely separated.
SFP 2/4G FC
SFP 2/4G FC Transceivers support multimode dual fiber, single-mode dual fiber, single-mode single-fiber, Coarse Wave Division Multiplexing and Unshielded Twisted Pair copper cabling.