FlexILS, Optical Line Systems, Automated Transport Networking
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FlexILS Series

Open Optical Line System


FlexILS Flexible Grid Line System

The industry’s most widely deployed flexible grid-compliant open optical line system features C+L-band support, CDC ROADM, and massive simplicity through automation and design, enabling forward-looking scale with long-term cost savings.


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Support today's requirements and be ready for the future with flexible grid, multi-degree CDC add/drop structures, and seamless support for C+L-band.

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Flexible operation

Support programmable configuration for optimized operation based on performance, spectral efficiency, long span reach, and challenging fiber conditions.

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Open networking

Easily manage both native and alien wavelengths, eliminating vendor lock-in and maximizing operator options, and achieve granular control for native and alien waves.

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Double the network capacity

Seamlessly double fiber capacity with non-service-impacting expansion to the L-band.

Related Resources

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White Paper

Open Optical Networks: Doing More with Less

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Case Study

RETN Scales Network Capacity and Increases Service Agility with Infinera XT Series

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Future-proofing Your Network with Infinera C+L

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Case Study

Telia Carrier Elevates Network with Infinera

Experience Infinera

Learn how the innovation and intelligence of Infinera networks can provide amazing experiences for your customers and your business.