Provider of passive fiber connectivity products Fons Corp., formerly of Northboro, Mass., has relocated to world headquarters in Marlboro, Mass. Situated in the region's Route 495 high-technology corridor, the facility will house research and product development, cleanrooms and testing laboratories designed to further improve the company's technology for the fiber-to-the-premises markets. Fons will be equipped to respond to the emerging demands for low-cost products for central office/head end, outside plant and customer premises applications, according to Michael J. Noonan, president and CEO.