The Institute of Electrical and Electronic Engineers (IEEE) developed another newer PON standard. Based on the Ethernet standard 802.3, EPON 802.3ah specifies a similar passive network with a range of up to 20 km. It uses WDM with the same optical frequencies as GPON and TDMA. The raw line data rate is 1.25 Gbits/s in both the downstream and upstream directions. You will sometimes hear the network referred to as Gigabit Ethernet PON or GEPON.
EPON is fully compatible with other Ethernet standards, so no conversion or encapsulation is necessary when connecting to Ethernet-based networks on either end. The same Ethernet frame is used with a payload of up to 1518 bytes. EPON does not use the CSMA/CD access method used in other versions of Ethernet. Since Ethernet is the primary networking technology used in local-area networks (LANs) and now in metro-area networks (MANs), no protocol conversion is needed. There is also a 10-Gbit/s Ethernet version designated 802.3av. The actual line rate is 10.3125 Gbits/s. The primary mode is 10 Gbits/s upstream as well as downstream. A variation uses 10 Gbits/s downstream and 1 Gbit/s upstream. The 10-Gbit/s versions use different optical wavelengths on the fiber, 1575 to 1580 nm downstream and 1260 to 1280 nm upstream so the 10-Gbit/s system can be wavelength multiplexed on the same fiber as a standard 1-Gbit/s system. (Compare EPON/GPON)
We, at Vestyx Technologies believe that meeting the data-intensive needs of your business customers is critical for your success. As high-capacity optical line terminals and high-speed optical network units (10GE Ethernet passive optical networks [EPON] and 1GE) become commonplace, the need to reduce your energy costs with passive components that require less power to operate is critical. Vestyx Technologies is uniquely positioned to offer a broad portfolio of innovative EPON services, with the expertise and resources that ensure a seamless, end-to-end solution. Our EPON solutions include advanced PON components, providing operators with reliable and scalable connectivity options that meet the needs of a rapidly evolving technology landscape.