Passive Optical Networks

Passive Optical Networks

Cost-Efficient Point-to-Multipoint Technology

A Passive Optical Network (PON) is a fiber-optic network utilizing a point-to-multipoint (P2MP) architecture and passive optical splitters to deliver services to multiple end-users. In a PON network, an Optical Line Terminal (OLT) is placed at the network’s headend, which manages the connections to the premises Optical Network Terminals (ONTs).

What are the benefits of Passive Optical Networks?

Long-Term Cost-Effective Solution

Point-to-multipoint (P2MP) architectures serve exponentially more end-users while also reducing maintenance, infrastructure, and equipment costs in the long term.

Future-Proofed Technology

Continuously evolving PON technology ensures networks remain ahead of consumer bandwidth demands, all while using the same fiber infrastructure for decades to come.

Reliable, High-Speed Internet

There is a reason transoceanic cables use fiber-optics – it is resistant to temperature change, electromagnetic interference, and degradation.

Types of PON Applications

  • Fiber-to-the-Home (FTTH)

  • Fiber-to-the-Building (FTTB)

  • Fiber-to-the-Cabinet (FTTC)

  • Fiber-to-the-Node (FTTN)

Types of PON Technologies

Gigabit PON (GPON)

GPON (ITU-T G.984.x) provides 2.5 Gbps downstream and 1.25 Gbps upstream (2.5G/1.25G). Today it is the most popular mainstream PON technology; however, as customer demands grow, operators have already started to pivot to XGS-PON technologies.


XGS-PON (ITU-T G.9807.x) evolved from existing GPON technology and provides 10 Gbps both downstream and upstream (10G/10G). 10G is essential in preparing for future, high-bandwidth Internet use cases.


Combo PON combines GPON and XGS-PON on the same OLT port simultaneously. It is a great way to meet the growing needs of residential and small businesses on existing GPON networks and extend the life of underlying infrastructure.

Our Fiber Access Solutions

Adtran Fiber Access Solutions give the flexibility to choose the right PON technology for all types of deployments.

Whether GPON, XGS-PON, or a combination of PON technologies, our solutions ensure the longevity of your fiber investment for decades to come.

Featured Resources

Horizon Sets New Broadband Possibilities in Ohio with Adtran

We’re leveraging the best architecture so that we can build a resilient network to deliver the best user experience. Because of partners like Adtran, we now have the expertise and capability to support high-quality residential broadband services and large-scale Ethernet services for businesses and carriers.

Sure Transforms Channel Island with Gigabit Services Leveraging the Adtran 10G Fibre Access Platform

We have a unique opportunity on Guernsey to deliver a service that can support subscriber demand for premium, high-quality services in all aspects of their lives. With Adtran’s team and technology, we know we can exceed our customers’ expectations today and for years to come.

Telcos' tipping point: 10G Fiber and Software-Defined Access

Service provider strategies, plans, and business drivers for deploying 10 Gbps capable FTTH in conjunction with their open, cloud-based infrastructure shift.

Beyond 10G PON – Leveraging your fiber investment for higher-speed, higher-value services

Today, we see the benefit of the accelerating deployment of Fiber-to-the-Home. Gigabit services are rapidly becoming available to more subscribers.

How XGS-PON is winning vs. Active Ethernet?

While many contend that users don’t need Gigabit, everyone agrees that this next speed tier is what operators are leveraging to attract customers onto their new fiber networks - Gigabit speeds today with multi-gigabit speeds just around the corner!