Cisco CWDM OADM - multiplexor

The Cisco CWDM passive optical system provides optical networking support for high-speed data communication for metropolitan area networks (MANs) over a grid of eight CWDM optical wavelengths in both ring or point-to-point configurations. The Single-Fiber 4-Channel Multiplexer/Demultiplexer allows you to multiplex/demultiplex four separate channels into one strand of fiber.