Adtran Fiber Expansion Boosts Telecom PCB Demand

Adtran announced that Silo Communications is deploying its fiber access technology to expand high-speed broadband in underserved rural northern Illinois communities. This project, part of Silo’s transition from wireless to fiber, reflects the ongoing rural infrastructure boom. It signals growing demand for network equipment and the advanced printed circuit boards essential to modern telecom hardware, creating opportunities across the PCB supply chain.

Adtran’s fiber access solution includes optical line terminals and nodes delivering multi-gigabit speeds. These devices rely on high-layer-count multilayer PCBs and HDI technology for dense routing in compact form factors. Silo Communications’ shift from wireless to fiber mirrors a national push funded by the $42.5 billion BEAD program, driving orders for thousands of active electronics. Each unit requires boards with controlled impedance, low-loss materials like Rogers 4350B, and rigorous reliability testing. For PCB manufacturers, this translates to increased demand for advanced fabrication processes such as sequential lamination and laser-drilled microvias. As projects like the Illinois rollout expand, OEMs seek suppliers who can deliver consistent quality at scale, making telecom a high-stakes growth vertical for the PCB sector.

Beyond immediate hardware needs, the fiber broadband trend reshapes PCB supply chains. Telecom equipment often demands 20+-layer boards with mixed-material constructions—combining FR-4 cores with high-frequency laminates—to balance cost and performance. Geopolitical factors, including tariffs on Chinese-made PCBs, push some OEMs to diversify sourcing. For buyers, ensuring supply chain resilience for complex boards is critical when lead times stretch. The Illinois deployment illustrates a regional operator triggering demand for advanced PCBs that underpin gigabit connectivity. As similar rollouts accelerate nationwide, the PCB sector stands to benefit from sustained infrastructure investment, provided it meets technical and volume requirements. This dynamic highlights the importance of PCB partners with telecom expertise. Such projects reinforce that fiber is a multi-year growth driver for the PCB industry, particularly for HDI and high-frequency board segments.

LT CIRCUIT supplies HDI PCB boards, multilayer PCB boards, and Rogers PCB boards designed for fiber access gear. With rapid prototyping and volume manufacturing, we help OEMs keep pace with broadband expansions like the Illinois project, ensuring reliable, high-performance boards.