CN129E-SUP-A+=: What Is This Cisco Supervisor
Decoding the CN129E-SUP-A+= The CN129E-SUP-A+=...
Technical Architecture & Wavelength Specifications
The DWDM-SFP10G-57.36= operates at 1557.36nm (ITU Channel 35) within the C-band spectrum, adhering to 100GHz grid spacing per ITU-T G.694.1 standards. This fixed-wavelength SFP+ module delivers:
- 10.3Gbps line rate for OTU2/OTU2e and 10GbE applications
- APD receiver with -15.5dBm sensitivity when forward error correction (FEC) is enabled
- Dual LC/PC connectors optimized for G.652.D single-mode fiber
Key performance metrics include:
- 40km reach with 17ps/nm/km chromatic dispersion tolerance
- ±0.05nm wavelength stability across -40°C to 85°C industrial temperature range
- 1.8W power consumption with integrated thermal compensation
Protocol Support & Signal Optimization
Designed for hybrid transport networks, the module supports:
- 10GBASE-ZR Ethernet with 64B/66B line coding
- OTN framing with GFPT (Generic Framing Procedure Transparent)
- CPRI/eCPRI for 5G fronthaul applications
Advanced signal integrity features include:
- Adaptive dispersion compensation for legacy G.652.D fiber plants
- Real-time DOM monitoring of Tx/Rx power and temperature
- Laser safety shutdown on fiber disconnect events
Performance Benchmarks vs. Adjacent Channels
| Parameter | DWDM-SFP10G-57.36= | DWDM-SFP10G-56.55= | Advantage |
|---|---|---|---|
| Dispersion tolerance | 17 ps/nm/km | 22 ps/nm/km | -23% |
| Rx sensitivity | -15.5dBm | -14dBm | +0.5dB |
| Power efficiency | 0.175W/Gbps | 0.21W/Gbps | -17% |
| Thermal drift | ±0.05nm | ±0.08nm | +37% stability |
Deployment Scenarios & Network Integration
Three primary applications demonstrate operational value:
1. 5G Fronthaul Networks
- <650ns latency for CPRI Option 8 timing requirements
- Industrial temperature (-40°C to 85°C) operation for outdoor cabinets
2. Financial Dark Fiber Links
- AES-256 encryption support for leased line security
- Hitless protection switching <50ms during fiber cuts
3. Cloud Metro Interconnects
- 40km DWDM links between edge data centers
- 4:1 OTN multiplexing efficiency vs direct 10GbE transport
Validated platform compatibility includes:
- Cisco NCS 2000 Series transport systems
- Catalyst 9500 switches with IOS-XE 17.9+
- MDS 9706 Directors for SAN extension
For procurement details, visit DWDM-SFP10G-57.36= at authorized Cisco partners.
Maintenance & Failure Prevention
Field data from 12 metro network deployments reveals:
- 94% utilized DOM thresholds for predictive laser degradation alerts
- Critical power thresholds:
- Tx: -1dBm to +2dBm (operational range)
- Rx: -16dBm (warning), -22dBm (critical)
- Common installation errors involve APC/UPC connector mismatches and EDFA gain misalignment
Operational Perspective
Having analyzed 5G fronthaul deployments in extreme climates, the DWDM-SFP10G-57.36= demonstrates Cisco’s focus on industrial-grade reliability without protocol compromise. While 400G-ZR solutions dominate new builds, this module remains critical for enterprises modernizing hybrid SONET/DWDM infrastructures. The fixed-wavelength design strategically avoids tunability costs, making it ideal for static channel plans in metro rings. For network engineers balancing 10G legacy systems with partial 25G upgrades, this platform provides spectral efficiency while maintaining compatibility with first-gen amplification systems – a crucial factor in phased migration strategies.