CWDM and DWDM SFP transceivers are widely used by companies which lease optical fibers, alternatively they also can be used to upgrade existing networks (by multiplying capacity of already installed optical cables without need for adding new ones). Thanks to optical multiplexing technology it is possible to send many separate data streams (channels) over same strain of fiber. Optical  (CWDM or DWDM) multiplexers and demultiplexers are needed at the ends of each fiber to extract/add particular channels and guide them to/from the appropriate connectors. Usage of such CWD/DWDM tranceivers can bring huge savings on the long-term basis. CWDM technology offers up to 18 channels, while DWDM brings up to 72 channels.

FTS-S12G-ZXXL-YYB

YY - denotes guaranteed power budget: (24 - 24dB, 28 - 28dB, 32 - 32dB, 36 - 36dB, 41 - 41dB)

Z - denotes type of WDM: (C - CWDM, D - DWDM)

XX -  in CWDM modules denotes wavelengths available to choose from [nm]: (27~61 - 1270~1610nm )

XX -  in DWDM modules denotes channel number of DWDM 100GHz grid

For details please check datasheets or contact support department.