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Two NEC product families are available for metro WDM systems ― the TM Series and MW Series. These carrier-grade optical networking solutions enable transparent transport of any service at 100Mbit/s to 10Gbit/s for metropolitan and regional applications.

The TM-3000 Series platform is a carrier-grade optical networking solution allowing transparent transport of any service at 100Mbit/s to 10Gbit/s for metropolitan, regional and long haul applications.
This solution supports any type of network within the metro WDM environment, including:
The cornerstone of the TM Series is a unique system architecture that includes CWDM, DWDM and SDH/SONET transmission solutions within a single system.

Metro CWDM System
SpectralWave MW0500
The SpectralWave MW0500 is suitable for metropolitan applications and employs the CWDM standard for economical deployment that fully satisfies the needs of network operators' customers.
Reduced operating costs
The space-saving 1U/2U design is highly energy-efficient. Support for bi-directional transmission also reduces rental fiber costs.
Suitable for Ethernet networks
Transparent Gbit/10Gbit Ethernet transmission

Metro DWDM System
SpectralWave MW1000
The SpectralWave MW1000 is suitable for metro WDM platforms. Featuring path-based protection, it provides network operators with a highly reliable solution that satisfies customer demands.
Reduced initial costs
One installation per eight wavelengths
Reduced operating costs
Bi-directional transmission reduces rental fiber costs
Suitable for Ethernet networks
Transparent Gbit/10Gbit Ethernet transmission