The multiplexer and demultiplexer cards multiplex and demultiplex DWDM optical channels.
ONS 15454 multiplexer and demultiplexer cards include the 32-Channel Multiplexer (32MUX-O), the 40-Channel Multiplexer (40-MUX-C), the 32-Channel Demultiplexer (32DMX-O), the single-slot 32-Channel Demultiplexer (32DMX), the single-slot 32-Channel L-Band Demultiplexer (32DMX-L), the 40-Channel Demultiplexer (40-DMX-C and 40-DMX-CE), and the 4-Channel Multiplexer/Demultiplexer (4MD-xx.x).
The 32-Channel Wavelength Selective Switch (32WSS and 32WSS-L) cards, 40-Channel Wavelength
Selective Switch (40-WSS-C and 40-WSS-CE) card are used to implement reconfigurable OADM (ROADM) functionality.