SFP-10G-LR-X=: Technical Specifications, Deployment Best Practices, and Performance Optimization for 10G Long-Reach Networks



Introduction to the Cisco SFP-10G-LR-X= Optical Transceiver

The ​​Cisco SFP-10G-LR-X=​​ is a ​​10GBASE-LR SFP+​​ optical transceiver designed for ​​long-distance 10 Gigabit Ethernet connectivity​​ over ​​single-mode fiber (SMF)​​. Targeting enterprise networks, data center interconnects (DCIs), and service provider backbones, this module supports ​​10 km reach​​ at a ​​1310 nm wavelength​​, making it ideal for high-bandwidth applications requiring reliable, low-latency links. Integrated with Cisco’s ​​Digital Optical Monitoring (DOM)​​ capabilities, it provides real-time diagnostics to optimize network performance and preempt failures.


Technical Specifications and Optical Performance

​Optical Characteristics​

  • ​Data Rate​​: ​​10.3125 Gbps​​ (IEEE 802.3ae compliant), compatible with ​​SONET OC-192​​ and ​​SDH STM-64​​ standards.
  • ​Wavelength​​: ​​1310 nm DFB laser​​, optimized for ​​OS2 single-mode fiber​​ with ​​≤0.4 dB/km attenuation​​.
  • ​Reach​​: ​​10 km​​ with receiver sensitivity of ​​≤-14.4 dBm​​ and overload threshold of ​​-1 dBm​​.
  • ​Power Consumption​​: ​​≤1.5W​​, adhering to ​​Cisco’s EnergyWise​​ efficiency standards.

​Compliance and Reliability​

  • ​Certifications​​: ​​RoHS III​​, ​​CE Mark​​, and ​​FCC Part 15​​ for electromagnetic compatibility.
  • ​DOM Support​​: Monitors ​​Tx/Rx power​​, ​​temperature​​, and ​​voltage​​ with ±5% accuracy via Cisco ​​NX-OS/IOS-XE CLI​​.
  • ​Operating Temperature​​: ​​0°C to 70°C​​ (commercial) and ​​-40°C to 85°C​​ (industrial variants).

Key Features and Design Innovations

​Advanced Diagnostics and Maintenance​

  • ​DOM Integration​​: Enables proactive health checks, alerting administrators to ​​fiber degradation​​ or ​​connector contamination​​ before link failure.
  • ​Hot-Swappable Design​​: Minimizes downtime during upgrades or replacements, critical for ​​24/7 operational environments​​.

​Compatibility and Flexibility​

  • ​Cisco Ecosystem​​: Validated for ​​Nexus 9300/9500​​, ​​Catalyst 9500​​, and ​​ASR 9000 Series​​ platforms.
  • ​Third-Party Interoperability​​: Functions with MSA-compliant switches but requires Cisco devices for ​​full DOM visibility​​ and ​​warranty coverage​​.

Deployment Scenarios and Use Cases

​1. Data Center Interconnects (DCIs)​

The SFP-10G-LR-X= links ​​Cisco Nexus 7700​​ switches across geographically dispersed data centers, achieving ​​≤1 ms latency​​ for synchronous replication of ​​VMware vSphere clusters​​.


​2. Enterprise Campus Backbones​

In ​​Cisco Catalyst 9600​​ core deployments, this transceiver supports ​​10G uplinks​​ to access-layer switches, reducing cabling complexity by ​​30%​​ compared to multi-strand solutions.


​3. Telecom Backhaul Networks​

Telecom providers deploy the module in ​​Cisco NCS 5500 Series​​ routers to aggregate ​​5G fronthaul traffic​​, ensuring ​​99.999% availability​​ in metro networks.


Addressing Critical User Concerns

​Q: How does the SFP-10G-LR-X= handle chromatic dispersion over 10 km?​

A: The ​​dispersion-tolerant design​​ limits signal distortion to ​​≤2 dB penalty​​, while ​​APC connectors​​ reduce reflectance to ​​≤-55 dB​​, ensuring stable performance.


​Q: Can it be used with existing multimode fiber infrastructure?​

A: No. The module requires ​​single-mode fiber​​. For multimode deployments, consider ​​SFP-10G-SR​​ variants with ​​OM3/OM4 compatibility​​.


​Q: What cleaning protocols prevent link degradation?​

A: Use ​​Cisco-recommended LC cleaner cassettes​​ monthly, and inspect connectors with a ​​200x microscope​​ if ​​Rx power drops >3 dBm​​ from baseline.


Procurement and Compatibility Guidelines

  • ​Supported Platforms​​: Nexus 9300/9500, Catalyst 9200/9500, ASR 9000/1000 Series.
  • ​Licensing​​: No license required; plug-and-play with ​​Cisco IOS-XE 17.9+​​ or ​​NX-OS 10.2(3)F+​​.

For Cisco-certified refurbished modules, visit the ​​[SFP-10G-LR-X= link to (https://itmall.sale/product-category/cisco/)​​.


Strategic Advantages Over Competing Solutions

  • ​Cost Efficiency​​: ​​20% lower TCO​​ over 5 years compared to replacing legacy fiber with multi-mode cabling.
  • ​Cisco Integration​​: ​​Crosswork Network Automation​​ correlates DOM data with NetFlow, reducing troubleshooting time by ​​50%​​.
  • ​Sustainability​​: ​​Energy-efficient design​​ saves ~$150 annually per module compared to older 10GBASE-LR variants.

Final Perspective

The SFP-10G-LR-X= underscores Cisco’s ability to balance performance and practicality in optical networking. While competitors often push for higher speeds at the expense of legacy compatibility, this transceiver addresses a critical gap: enabling scalable 10G upgrades without overhauling existing fiber infrastructure. Enterprises clinging to outdated cabling strategies risk both CAPEX bloat and operational rigidity; adopters of this module modernize their networks with surgical precision. In an era where bandwidth demands outpace budgets, the SFP-10G-LR-X= isn’t just a component—it’s a strategic enabler of agile, future-ready networks.


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