Core Function of CB-LC-LC-SMF25M=

The ​​CB-LC-LC-SMF25M=​​ is a ​​Cisco-certified single-mode fiber optic cable​​ designed for ​​long-distance, high-speed data transmission​​ between Cisco switches, routers, or data center equipment. With LC connectors on both ends and a 25-meter length, it supports reliable connectivity in campus backbones, metro networks, or inter-building links.

Key Technical Specifications

• ​​Connector Type​​: ​​LC-LC​​ duplex connectors for low-loss optical coupling.
• ​​Fiber Type​​: ​​OS2 single-mode fiber​​, optimized for ​​10G/40G/100G​​ Ethernet and DWDM applications.
• ​​Transmission Distance​​: Supports up to ​​80 km​​ (with appropriate transceivers like QSFP-100G-ZR4-S).
• ​​Compatibility​​: Cisco Nexus 9000/7000 switches, ASR 9000 routers, and NCS 5000 series.
• ​​Durability​​: Corrosion-resistant jacket for outdoor or industrial deployments.

Why CB-LC-LC-SMF25M= Is Critical for Long-Haul Networks

Single-mode fiber (SMF) outperforms multimode in distance and bandwidth. This cable addresses SMF-specific challenges by:

• ​​Minimizing Signal Loss​​: Precision connectors reduce insertion loss (<0.3 dB) for ultra-long-haul links.
• ​​Future-Proofing Infrastructure​​: Supports current 100G and emerging 400G/800G standards with minimal upgrades.

Addressing Common User Concerns

​​Q: Can this cable replace multimode fiber (MMF) for short-range links?​​
A: Technically yes, but ​​MMF (e.g., OM4)​​ is more cost-effective for distances under 550 meters. Use SMF where distance or scalability is a priority.

​​Q: How does it differ from generic LC-LC single-mode cables?​​
A: Cisco-certified cables like CB-LC-LC-SMF25M= undergo ​​end-face geometry testing​​ to align with Cisco transceivers, ensuring optimal light coupling. Third-party cables often cause higher bit error rates (BER) in high-speed links.

Where to Source Authentic CB-LC-LC-SMF25M= Cables

To avoid performance degradation or compatibility issues, purchase from authorized suppliers like itmall.sale’s Cisco fiber portfolio. Counterfeit cables lack factory-tested polish and attenuation specs, risking network instability.

Final Insight

During a telecom backbone upgrade, a client’s generic SMF cable caused intermittent 100G link failures due to mismatched core alignment. Switching to CB-LC-LC-SMF25M= eliminated the issue. In mission-critical networks, every nanometer of light alignment matters—certified cables are non-negotiable for long-term reliability.