EPON/GEPON technology is a fast Ethernet over passive optical networks which are point to multipoint fiber to the premises (FTTP)/fiber to the home (FTTH) architecture in which single optical fiber is used to serve multiple premises or users. A ‘PON’ architecture consists of an Optical Line Termination (OLT) on the provider’s side and one or many Optical Network Units (ONU) on the users’ side. This type of architecture is always better than the point to point ones. These are fast replacing existing technologies as DSL or cable modems as EPON/GEPON are capable of providing bandwidths of up to 1 gigabit and beyond and also serve multiple purposes at a time.
GEPON or EPON provides seamless connectivity for any type of IP-based or other packetized (Ethernet) communications as it employs a single Layer 2 network that uses IP to carry data, voice, and video. Since Ethernet devices are present everywhere from home network to regional, national and worldwide backbone networks, implementation of EPONs has proved to be cost-effective. Also it provides secure communication as encryption is provided in both ends i.e. upstream and downstream, so the chances of eavesdropping fade away. As the transfer rates in Ethernet scale up by the day the scalability of EPON/GEPON technology is limitless.