The Cortina Systems® CS8021 Quad Gigabit Ethernet Passive Optical Network (GEPON or EPON) Optical Line Terminal (OLT) chip (CS8021) supports four EPON ports in a single chip to significantly simplify board design and lower the system Bill of Materials (BOM) cost. The CS8021 enables equipment vendors to develop a high port density chassis or stackable rack mount system targeted at the Central Office (CO).

The Cortina CS8026 Dual Gigabit Ethernet Passive Optical Network (GEPON or EPON) Optical Line Terminal (OLT) chip (CS8026) supports 2 EPON ports in a single chip for vendors needing only a dual port design.