en.Wedoany.com Reported - US broadband platform provider Calix officially announced on May 12 the extension of its AI-driven end-to-end platform, Calix One, to support standards-based 50G Passive Optical Network technology, simultaneously launching the AXOS E7-2 50G-PON line card and the GigaPoint 50G-PON Optical Network Terminal. This expansion will enable communications service providers to seamlessly introduce 50G-PON over existing fiber infrastructure, delivering ultra-high-capacity services to diverse markets including residential, business, multi-dwelling units, and mobile backhaul without network reconstruction.
Calix One is an AI-driven end-to-end broadband platform integrating intelligent access networks, cloud software, AI agents, and managed services, serving over 1,200 global customers. The introduction of 50G-PON capability means operators do not need to tear down and rebuild existing networks; instead, they can boost bandwidth capacity to the 50 Gbps level using the same physical fiber and operational framework. Calix has invested over $2 billion in platform research and development over the past 15 years, and this long-refined hardware and software stack forms the technical foundation for this seamless upgrade.
The AXOS E7-2 50G-PON line card will serve as a scalable, standards-based modular solution, compatible with three generations of technology—50G-PON, XGS-PON, and GPON—allowing operators to run multiple PON services simultaneously on the same network. This line card is managed by Calix's proprietary AXOS software-defined operating system, which is already deployed in E-series access devices, ensuring full compatibility with existing operational systems. The concurrently released GigaPoint 50G-PON Optical Network Terminal is equipped with 10GE, 25GE, and 50GE LAN interfaces, targeting scenarios with stringent upstream bandwidth requirements, such as business customers and smart infrastructure.
Calix Chief Product Officer Shane Eleniak noted that the purpose of this expansion is to help operators flexibly adjust network capabilities without the need for large-scale reconstruction of existing infrastructure. By integrating 50G-PON into a unified converged PON architecture, operators can simplify operations, expand bandwidth, maximize the return on fiber assets, and reduce total cost of ownership. The platform also provides cloud-based network management functions through Operations Cloud, supporting remote monitoring and maintenance. 50G-PON supports both asymmetric 50G/25G and symmetric 50G/50G dual-rate modes, allowing flexible configuration over the same optical distribution network.
ALLO Communications and Brightspeed have already completed 50G-PON testing with Calix in North America. David Tomalin, Group Chief Technology Officer of CityFibre, one of the UK's largest fiber infrastructure operators, publicly stated that CityFibre's partnership with Calix spans over a decade, during which they have deployed a network covering nearly 5 million premises and completed an upgrade from GPON to XGS-PON. He views 50G-PON as a crucial step in continuing evolution and pushing technological boundaries, enabling the delivery of next-generation innovative services to residential, enterprise, and business users over the same fiber network.
From the perspective of the global fiber access industry chain, 50G-PON is rapidly moving from the standard-setting phase towards commercial deployment, with China, North America, and Europe becoming the three main battlegrounds. The International Telecommunication Union has completed the formulation of the 50G-PON series of standards, explicitly requiring multi-generation coexistence and smooth evolution of three PON technology generations on the same optical distribution network, thereby reducing the complexity of network construction and operation. Chinese manufacturers such as ZTE and Huawei have conducted 50G-PON pilot deployments in multiple locations, while European and American operators like AT&T and Openreach have successively disclosed their 50G-PON testing plans. As a significant participant in the North American broadband access platform market, Calix's launch of 50G-PON through a software-centric platform approach, rather than merely a hardware line card, represents a differentiated path distinct from the equipment vendor "box-selling" route.
Founded in 1999 and headquartered in San Jose, California, Calix was established by current Board Chairman Carl Russo. The company initially focused strategically on serving rural broadband service providers in the United States and officially completed its transformation into a platform company in 2022. Today, Calix One supports over 1,200 customers globally, covering multiple markets including the US and the UK. The core logic of its platform strategy is to leverage AI to drive operational efficiency, transforming the traditional "bandwidth commodity" into a differentiated service experience.
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