5 Advantages of EPON

PON means passive optical network and Ethernet passive optical network (EPON), is an Ethernet-based PON technology. EPON technology works by the standard of IEEE 802.3 EFM, which uses a point-to-multipoint structure and passive fiber optic transmission to offer various services over Ethernet. It combines Ethernet and PON technology into one. This technology works with any sort of IP-based communications, and it can be applied in homes, offices, and any other place. A typical EPON system is composed of EPON ONU, EPON OLT, and EPON ODN. EPON is widely used in family use and the industry for its advantages.


Time and Cost Advantage

Technology Factor

EPON has been adopting mature technology for many years and has already accumulated experience. EPON technology significantly reduces the number of optical fibers, optical transceiver modules, and central office facilities. The third generation of commercial chips have already been launched, and relevant optical modules and chip have been more cost-effective to reach the commercial level of scale, which is enough to meet the requirements of recent broadband services.

Using EPON as an access network is low-cost, versatile, and eliminates the need for protocol and format conversion for IP data transmission. EPON also saves the cost of maintenance in power supplies so that it reduces the construction and maintenance cost of the FTTX network. In general, EPON cost is 20% lower than GPON.

Production Scale

EPON system vendors have developed early systems and started small-scale trials while making the standard. On the one hand, it helps develop the standard and on the other hand it has accumulated the experience of relevant engineering and service for future large-scale production. So, when there are a lot of demands, EPON can be instantly put into production, which reduces the cost.

Excellent Compatibility

EPON is based on Ethernet technology, which is by far the most successful and perfect LAN technology. Ethernet can be considered the trend of customerside LAN technology. Using Ethernet as the access network is not only cost-effective but also universal. Also, it avoids complex transmission protocols and format conversions with high performance and easy management.

High Bandwidth

EPON can be divided into symmetric and asymmetric EPON. The symmetric EPON offers the same data rates both upstream and downstream and the asymmetric EPON provides different data rates. At present, EPON can provide a downstream data rate of 1.25Gb/s and an upstream data rate of 125Mb/s, which can also be developed to 1GB/s with the development of Ethernet technology.

The data is much higher than the current access methods, which can meet the bandwidth requirements of various services such as broadband Internet, video on demand, online games, video telephony, and digital HDTV. The bandwidth can also be flexibly allocated according to the customers’ needs, so it can be used as the ultimate connection method for customers.

Easy Upgrading

The upgrading of EPON is easier than GPON. It can be upgraded to 10GE EPON by the replacement of the original PON board. And the original EPON OLT can also be used continually. The user side can directly use 10GE EPON to achieve high-speed Internet access and provides customers with 10 Gigabit and below broadband access.

Future Market

EPON technology is suitable for Ethernet services, while GPON technology is more suitable for enterprises with multi-service requirements. It is said that 90% of services will be based on IP data, so EPON is still essential in the market and many countries decide to construct FTTH based on EPON.

EPON is suitable for different scenarios such as FTTO (office), FTTD (desk), and FTTH (home). Compared to GPON, EPON is more suitable for small and medium businesses


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EPON and GPON have different data protocols. EPON is an Ethernet-based IEEE standard. It supports packet-based transmission at a speed of 1 Gbps or 10 Gbps. GPON adopts SONET/SDH technology and General Framing Protocol (GFP) to transport Ethernet.

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The uplink and downlink rates of xPON are both higher than those of GPON. As is known to all, each PON port can connect up to 128 ONT. xPON supports data rates up to 10 Gbps per PON port, while GPON supports 2.4 Gbps.

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