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- Contentionless
Contentionless add/drop refers to the ability of an N-degree ROADM node to accommodate N wavelengths of the same frequency from a single add/drop device. - Colorless
Colorless ROADM ports are not frequency-specific. This characteristic simplifies provisioning and allows dynamic restoration, because the frequency of an ingress channel can be retuned by software without requiring its fiber to be relocated. - Omnidirectional
Omnidirectional ROADM ports are not associated with a specific ROADM degree. Therefore, a wavelength reroute does not require a physical fiber move, and it can be executed entirely by software. - Flex spectrum
The amount of spectrum allocated to a wavelength can be flexibly provisioned to allow for multicarrier super channels or single wavelengths exceeding today's 50-GHz channel spacing. - Single-slot form factor
Reduces footprint and simplifies cabling for the add/drop stage of a ROADM node. - Support for up to 16 degrees
Allows highly scalable mesh nodes, with no blocking of add/drop wavelengths within the add/drop structure.
The NCS 2000 contentionless add/drop line cards provide colorless, contentionless, omnidirectional, and flex spectrum add/drop functionality to the Cisco nLight ROADM architecture.