What Is the CAB-L240-10-SM-TM= Cisco Fiber Cable? Distance, Compatibility, and Deployment Scenarios

Overview of the CAB-L240-10-SM-TM=

The ​​CAB-L240-10-SM-TM=​​ is a ​​single-mode duplex fiber optic cable​​ designed for long-distance, high-bandwidth data transmission in Cisco networks. With ​​LC to LC connectors​​ and a ​​10-meter length​​, it supports applications requiring minimal signal loss over extended spans, such as metro networks, data center interconnects, or campus backbones.

Key Technical Specifications

• ​​Fiber Type​​: ​​OS2 single-mode​​, optimized for 1310nm or 1550nm wavelengths.
• ​​Bandwidth​​: Supports ​​10Gbps to 100Gbps​​ (via QSFP28/QSFP-DD transceivers) with a reach up to ​​80km​​ depending on optics.
• ​​Connectors​​: ​​LC duplex polished ceramic ferrule​​ connectors for low insertion loss (<0.3 dB).
• ​​Jacket​​: ​​Riser-rated (OFNR)​​ for indoor vertical runs between floors.

Primary Use Cases

This cable is ideal for:

• ​​Data Center Interconnects (DCI)​​: Linking geographically dispersed facilities via DWDM/CWDM systems.
• ​​Service Provider Networks​​: Backhauling traffic between cell towers and core routers.
• ​​Enterprise Campus Backbones​​: Connecting Nexus 9000 switches across buildings.

Addressing Critical User Concerns

​​Q: Is this cable compatible with Cisco’s QSFP-40G-LR4-S transceivers?​​
Yes, the CAB-L240-10-SM-TM= works with ​​40/100/400G LR/LR4 optics​​, but ensure transceivers are tuned for single-mode wavelengths.

​​Q: Can it replace multi-mode fiber in existing setups?​​
No—single-mode and multi-mode fibers are ​​not interchangeable​​ due to core diameter differences (9µm vs. 50/62.5µm).

Why Choose Cisco-Certified Fiber Cables?

Third-party single-mode cables risk ​​angular misalignment​​ or ​​contamination​​ at connectors, causing signal degradation. The CAB-L240-10-SM-TM= guarantees end-to-end compatibility with Cisco’s optics and switches. For assured quality, purchase from authorized suppliers like [“CAB-L240-10-SM-TM=” link to (https://itmall.sale/product-category/cisco/).

Installation Best Practices

• ​​Bend Radius​​: Maintain a minimum ​​30mm radius​​ to prevent microbending losses.
• ​​Cleaning​​: Use lint-free wipes and IPA to clean connectors before mating.
• ​​Grounding​​: Bond metallic strength members in outdoor deployments to avoid lightning damage.

Final Perspective

In high-capacity networks, ​​fiber quality directly impacts uptime​​. I’ve debugged countless link flaps traced to uncertified cables with inconsistent core alignment. The CAB-L240-10-SM-TM= eliminates such variables, especially in latency-sensitive trading or healthcare networks. While upfront costs are higher, the long-term ROI in reduced troubleshooting justifies the investment. Never gamble with “good enough” fiber in mission-critical paths.