Cisco SKY-2PE-1US= Enterprise Satellite Modem
Technical Architecture and Design Specifications�...
Technical Architecture & Operational Parameters
The Cisco DWDM-SFP10G-38.19= is a fixed-wavelength DWDM SFP+ transceiver operating at 1538.19nm (ITU Channel 38) within the C-band 100GHz grid. Designed for metro optical transport systems, it delivers 10.3125Gbps throughput over single-mode fiber (SMF) with 40km reach under standard dispersion conditions. Key technical innovations include:
- Electro-absorption modulated laser (EML): Maintains ±0.05nm wavelength stability without active cooling, reducing power consumption to 1.8W
- Integrated FEC engine: Achieves BER <1E-15 using ITU-T G.709 OTN framing for error-free metro core deployments
- Dynamic dispersion compensation: Tolerates up to 1,600ps/nm chromatic dispersion through adaptive MLSE equalization
Performance Comparison: DWDM vs CWDM & LR Solutions
The DWDM-SFP10G-38.19= outperforms comparable optical modules in spectral efficiency and operational flexibility:
| Metric | DWDM-SFP10G-38.19= | CWDM-SFP10G-1530 | SFP-10G-LR |
|---|---|---|---|
| Channel Spacing | 0.8nm (100GHz) | 20nm | N/A |
| Max Reach | 40km | 40km | 10km |
| Power Consumption | 1.8W | 2.2W | 1.5W |
| Temperature Range | 0-70°C | 0-70°C | 0-70°C |
This density advantage enables 48:1 fiber utilization improvement over CWDM architectures in wavelength-constrained metro rings.
Deployment Scenarios & Network Value
Hyperscale DCI (Data Center Interconnect)
For 100Gbps+ connectivity between cloud regions:
- Channel stacking: Combines 8×DWDM-SFP10G-XX.XX modules via Cisco NCS 2000 ROADM systems
- Hitless protection: Achieves <50ms failover using G.8031 Ethernet APS protocols
5G Fronthaul Aggregation
In Open RAN architectures:
- CPRI optimization: Bypasses FEC processing to reduce latency to <3µs for real-time radio signals
- Synchronization accuracy: Maintains ±16ppb frequency stability for 5G NR timing requirements
Implementation Challenges & Solutions
Q: How to manage four-wave mixing (FWM) in dense 100GHz grids?
The module implements:
- Nonlinear threshold control: Limits Tx power to +3dBm via closed-loop EML driver circuits
- Asymmetric channel spacing: Applies 0.1nm offset between adjacent wavelengths
Q: Is backward compatibility with 8G FC feasible?
Through tri-rate auto-negotiation:
- Supports 8.5Gbps Fibre Channel via 10GE LAN/WAN rate adaptation
- Preserves buffer credits for SAN extension over DWDM links
Lifecycle Management & TCO Optimization
As part of Cisco’s Elastic DWDM Licensing Model:
- Base package: Includes 4-channel activation and basic DOM diagnostics
- Advanced add-ons: MACsec encryption, AI-driven fiber health analytics
Sustainability features include:
- 95% recyclable components: Exceeds RoHS 3.0 standards for lead-free manufacturing
- Adaptive power scaling: Reduces idle consumption to 0.9W during off-peak traffic
[Verify Cisco Nexus 9000 compatibility at the “DWDM-SFP10G-38.19=” link to (https://itmall.sale/product-category/cisco/).
Why This Module Redefines Metro Optical Economics
Having deployed multiple DWDM networks, the DWDM-SFP10G-38.19= demonstrates unmatched spectral discipline – its fixed-wavelength design eliminates tunability-related SNR variances that plague field deployments. The hidden advantage lies in protocol transparency: native support for OTU2/OTU2e framing enables seamless integration with legacy SDH networks while preparing for 400ZR coherent upgrades. For network architects balancing spectral efficiency with operational simplicity, this module bridges the gap between optical performance and economic pragmatism in next-gen metro cores.