Deliver multi-gigabit symmetrical speeds

Increase your network capacity without overbuilding with Harmonic's Fin 10G SFP+ Based OLT module. You can deploy Fin with Harmonic's Jetty 60G-Capable Remote Switch or Pebble R-PHY device for simple plug-and-play 10G capability.

Add FTTx services & accelerate to 10G

Transform your Ethernet switch ports and DOCSIS DAA devices into an Optical Line Terminal (OLT) for Fiber-to-the-Home (FTTH) applications. You can deploy Fin as an OLT or Remote OLT (R-OLT) for 10G or 10G PON from your central office, hub or from various Harmonic DAA nodes to accelerate to 10G with minimal modifications to your existing network.

Deploy hybrid fiber & DOCSIS in DAA

Surgically migrate DOCSIS to FTTx with minimal hardware investment thanks to the Fin OLT module deployed in our various DAA devices and nodes. Fin also integrates with the cOS™ Broadband Platform and our virtual Broadband Network Gateway (vBNG) application to leverage a same platform for both DOCSIS and PON technologies.

You can now converge your HFC and FTTH access networks to provide simultaneous services to DOCSIS cable modems and PON Optical Network Units (ONUs) from a same device. 

Streamline your network operations & go green

With Fin, you enable more efficient and sustainable high-speed broadband service delivery to every subscriber you serve. The Fin supports both ITU and IEEE PON standards for interoperability with third-party ONUs to leverage existing infrastructures and streamline your network operations. A single Fin module can handle up to 128 splits and comes in either an I-Temp or E-Temp model for indoor and outdoor deployments.

It gives you the full benefits of a software-based solution with remote configuration capability for XGS PON or 10G EPON deployments. The Fin also has incredibly low power consumption to meet evolving consumption requirements and generate energy savings across your network.

Increase service velocity

You can deploy one or multiple Fin OLT modules into Harmonic’s remote switch or DAA device to gain network agility and the elasticity you need to scale. Quickly roll out new services with the Fin OLT module and benefit from 10G capability without overbuilding.

Go fiber deep with Fin

The Fin 10G small form factor OLT module is easy to install and empowers your business to bring your next-gen broadband services to market faster.

With optional DOCSIS provisioning support for ITU or IEEE PON standards, the Fin OLT module when combined with our market-leading cOS® platform and network edge devices offers flexible service provisioning.

& efficient

Use 10G XGS/EPON optics to enable 10G PON solutions at a fraction of the cost of fixed-format OLT chassis

& universal

Our 10G OLT integrates into commercially available Ethernet switches or other Ethernet-enabled networking equipment with SFP+ sockets to become apart of any 10G PON network


Leverage Ethernet switch PON extension or co-location, or outside plant PON access bridge connectivity with support for variants of 10G PON and Remote PHY (R-PHY)

Fin networking & operation specifications


PON protocols
ITU-T G.9807.1

500 XGEMs and T-CONTs

Jumbo frames

IEEE AES encryption on PON side
IEEE802.1ae MACsec uplink encryption

Inband over IEEE 1904.2

Digital diagnositcs and monitoring


PON protocols

1000 LLIDs

Jumbo frames

IEEE AES encryption on PON side
IEEE802.1ae MACsec uplink encryption

Inband over IEEE 1904.2

Digital diagnostics and monitoring


Fin 10G SFP+ Based OLT is ideal for precision PON

High-bandwidth enterprise PON connectivity

Enable your network to deliver high-speed broadband services with greater precision to target specific areas that have high consumption needs. 


Unify fiber & DOCSIS networks

Address the urgent need to modernize existing DOCSIS network infrastructures with Harmonic's Fin 10G OLT module for hybrid fiber and DOCSIS deployments.



Frequently asked questions

Where does Fin OLT fit into a PON deployment?

The Harmonic Fin OLT module integrates with Harmonic's Pebble-1 DAA Device and Jetty 60G-Capable Remote Switch deployed in various Harmonic DAA nodes to extend 10G symmetric PON capability across your network with greater precision.

Where does Fin OLT fit into a PON deployment?

What are the services Harmonic offers for Fin?

Harmonic has a team of network experts to work alongside your operators, technicians and engineers. We can support your network planning, deployment, installation, configuration, troubleshooting and maintenance 24/7 and 365 days per year.

How can I receive support for Fin?

All Harmonic cOS customers have access to our state-of-the-art cOS Central platform. You'll have access to a complete set of cloud-based tools and services to simplify your cable and broadband network monitoring, management and operations.
If you need immediate support, you can either:

Let's talk Fin

Thank you for your interest in our Fin 10G SFP+ Based OLT.
Please fill out the form to get in touch and start the conversation on how our virtualized solution can bring your access network up to speed. Someone in our sales team will be in touch shortly.

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