The Ciena WMAT908NAA Corestream Optical OADM Module is a Corestream-series optical add/drop multiplexing (OADM) module designed for DWDM networks, delivering 10 Gb/s OADM functionality. It corresponds to the 130-7700-900 Corestream module and uses the WMAT908NAA part number, with the -6 OADM variant indicated in its designation. In typical deployments, OADM modules enable selective dropping and adding of wavelengths in a DWDM transport path while allowing other channels to pass through, enabling flexible wavelength routing in core and metro networks.
