Spanish manufacturer of optical cables for smart buildings
CABLES ESPECIALES DE FIBRA (CEF) manufactures and commercializes fiber optic cables, optoelectronic equipment, and accessories. In December 2025, it acquired OPTRAL, a company with over 35 years of experience in the. The company serves a global clientele across various sectors, ensuring that its products meet high standards and international certifications. In Spain, Tratos significantly expanded its operations by acquiring TELNET Fiber Optic S. TELNET is located in La Muela, Zaragoza, and has been a key player in the fibre optic industry since its establishment. Telnet started its activity supported by the experience of over 20 years of its founder, as Director of Research and Development in Cables de Comunicaciones SA, a company that at that time was a pioneer in Spain in optical fiber technology, and for many years first national manufacturer of optical.
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