Cisco CWDM-OADM1-1550 Optical Add-Drop Multiplexer Module is a dual single-channel OADM device for CWDM networks, providing two independent add/drop paths at 1550 nm. It enables selective insertion and extraction of CWDM wavelengths at a network node, supporting flexible wavelength routing and bandwidth management in fiber-optic links. Commonly used in metro and campus CWDM deployments to add or drop specific 1550 nm channels within a single module.
