Cisco 8-Channel EWDM Multiplexer/Demultiplexer - Multiplexor - 8 ports - plug-in module Cisco | EWDM-MUX8=

The 8-Channel Multiplexer/Demultiplexer allows you to multiplex/demultiplex eight DWDM channels and combine them with up to 8 CWDM channels into one pair of fiber. Dual fiber is used for both the network connection and the transceiver connections.