GPON

What is GPON ?

Gigabyte Passive Optical Network, known as GPON, rely on fiber optic cables to deliver video, data and voice signals. GPON networks are currently the leading form of Passive Optical Networks (PONs), and offer up to a 1:64 ratio on a single optical fiber, meaning, a single fiber from the OLT can deliver video, data and voice signals to up to 64 end users (or residences)

With technology constantly growing, and end users demanding faster internet speed, fiber optic technology is the absolute way to go. Fiber to the Home (FTTH) networks continue to be in high demand because of this. Mainstream PON technologies include broadband passive optical network (BPON), Ethernet passive optical network (EPON), and gigabyte passive optical network (GPON). EPON is an Ethernet passive optical network technology. GPON is a gigabyte passive optical network technology and is to date the most widely used mainstream optical access technology.

GPON network consists of mainly two active transmission equipment, namely- Optical Line Termination (OLT) and Optical Network Unit (ONU) or Optical Network Termination (ONT) and a splitter. The splitter will divide the signal when needed. The OLT takes in all of the optical signals in the form of beams of light from ONUs and will convert it to an electrical signal. An ONU connects to end-users and will send their signals back to the OLT. GPON supports triple-play services, high-bandwidth, long reach (up to 20km).

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EPON

EPON provides seamless connectivity for any type of IP-based. EPON tech offers point-to-multipoint network access with lower installation and maintenance costs. Since Ethernet devices are ubiquitous from the home network all the way through to regional, national and worldwide backbone networks, implementation of EPONs can be highly cost-effective. Furthermore, based on continuing advances in the transfer rate of Ethernet-based transport now up to 10 Gigabit Ethernet. EPON service levels for customers are scalable from 1.5 Mbit/s up through 1 Gbit/s.

Upstream and downstream rates of EPON are able to achieve up to 10 Gbps. It is now widely applied to FTTP or FTTH architecture to serve multiple users. With the advantages of scalability, simplicity, multicast convenience and capability of providing full service access, many Asian areas adopt EPON for their networks.

 

There are advantages to using both GPON and EPON systems. In comparison, it would be fair to conclude that GPON performs better than EPON overall, however EPON would be preferable in terms of cost and time saving.

There is also no denying that EPON has become the main PON of choice and GPON is now playing catch-up in various areas.The truth is that it is now possible for EPON and GPON systems to co-exist and complement each other across networks, so neither technology is likely to disappear any time soon.

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