Cortina family of Optical Line Terminal (OLT) SoCs completes the end-to-end solutions for EPON and 10G-EPON applications. Our silicon devices have been interoperability-tested, field-proven and adopted by various worldwide operators and carriers. Their main functions include. At the heart of a point-to-multi-point or passive optical network (PON) is the optical line terminal (OLT). The OLT (Optical Line Terminal) OLTG-8P4GC2S optical terminal manage data distribution on 9/125 single-mode optical fiber and it can be installed in medium structures to support the development of three-in-one broadcast television network, FTTP (fiber to the premise), FTTO (fiber to the office) e.