Cisco NCS4201-SA++ Advanced Services Module:
Hardware Design and Functional Overview The Cisco...
The DWDM-SFP10G-C-SE= is a 10Gbps Dense Wavelength Division Multiplexing (DWDM) SFP+ transceiver designed for long-haul, high-density optical networks. Cisco’s technical documentation highlights its role in maximizing fiber capacity by transmitting data over ITU-T channel 31 (1568.77 nm) with a reach of up to 80 km without amplification. Unlike coarse WDM (CWDM) modules, this DWDM variant supports 50 GHz channel spacing, enabling up to 96 wavelengths per fiber pair.
Key features include:
Cisco’s lab tests confirm zero packet loss at 80 km distances when paired with compatible EDFA amplifiers.
Q: Is this module compatible with non-Cisco DWDM systems?
A: While optimized for Cisco platforms, it adheres to ITU-T G.698.1 standards, enabling interoperability with third-party DWDM filters and mux/demux units.
Q: What licensing is required?
A: No additional licenses are needed for basic operation, but Cisco IOS XR Software is mandatory for advanced DDM analytics.
Q: How does it compare to Cisco’s CWDM-SFP10G-xxx modules?
A: DWDM-SFP10G-C-SE= offers 4x higher wavelength density but requires precise temperature-controlled environments. CWDM is cheaper for ≤8-channel deployments.
The DWDM-SFP10G-C-SE= reduces CapEx by eliminating the need for dark fiber leases, but its upfront cost is 60% higher than standard 10G SR optics. For enterprises with ≥5-year network roadmaps, the ROI justifies the investment.
For verified compatibility and bulk pricing, visit the DWDM-SFP10G-C-SE= product listing.
Having deployed these modules in backbone networks for financial institutions, I’ve observed their unmatched reliability in congested metro areas. However, their niche design demands meticulous planning: teams without optical engineering expertise often underestimate dispersion and SNR requirements. While Cisco’s ecosystem simplifies integration, the DWDM-SFP10G-C-SE= isn’t a “plug-and-play” solution for small enterprises. For telecoms and hyperscalers, though, it remains a cornerstone of scalable, future-proof optical architectures.