Tellabs FlexSym ONT248 offers better enterprise Ethernet switch refresh choice

by | Feb 19, 2020 | News Release

Tellabs FlexSym Optical Network Terminal 248 (ONT248)

With the availability of the new Tellabs FlexSym ONT248, an economical and superior Optical LAN design is now available for enterprise network closet-based Ethernet switch upgrades.

Dallas, Texas. February 19, 2020 (GLOBE NEWSWIRE) – Tellabs, the leading provider of Passive Optical Network (PON) solutions, announces that Tellabs® FlexSym Optical Network Terminal 248 (ONT248), and System Release 31.3 (SR31.3) software, has entered the Limited Availability product lifecycle process and will now move forward with customer trials.

The rack mountable one-rack unit (1RU) Tellabs FlexSym ONT248 offers the delivery of 48-ports of Ethernet enabling reuse of existing cable infrastructure while providing the benefits of Passive Optical LAN.  Each port offers up to 60W of Power over Ethernet limited only by the capacity of the redundant modular hot-swappable power supplies installed.  Leading edge bandwidth compliant with ITU-T G.9807 provides symmetrical 10 Gbps downstream, and 10 Gbps upstream, XGS-PON transmission. Using the Tellabs FlexSym ONT248 makes legacy Ethernet switch replacements possible, while leveraging the Optical LAN backbone to add any of the Tellabs’ true enterprise portfolio of ONTs to further extend fiber deep across buildings and campuses.

The Tellabs FlexSym ONT248 key customer benefits include:

  • Economical one-to-one closet-based switch replacement
  • Reuse the last 100m CATx cables in the horizontal, walls and drops
  • Achieve lower IT support and maintenance costs
  • Remove points of known network vulnerabilities
  • Reduce fiber cabling building-to-building and floor-to-floor
  • Gain extended temperature range inside IT equipment rooms
  • Support IoT, smart buildings, Wi-Fi, digital ceiling and LED lighting
  • Migrate to deep fiber design or combining with deep fiber

At this point in time, enterprise passive Optical LAN is widely accepted as the better IT network design for new build greenfield, and now with the new Tellabs FlexSym ONT248 available, OLAN is definitely now the economical best choice for brownfield renovation and refresh projects too, which represents a significantly larger market opportunity for us and our partners,” said Rich Schroder, Tellabs President and CEO.

We invite you to get more information about Tellabs FlexSym ONT248, and the Tellabs Optical LAN solution, by visiting our online resource pages.


About Tellabs
Tellabs is leading the future of networking with access solutions for today, poised to deliver modern high-performance solutions for the future. Fast and secure access has never been in more demand for enterprise and government connectivity. Tellabs’ sole focus is to deliver simple, secure, scalable and stable access to optimize network performance. Tellabs has delivered carrier-class access solutions to service providers for more than two decades. We are now expanding that leadership by defining the future of enterprise networking that connects the campus, buildings and inspires people. For more information, please visit

 Media Contact
John Hoover

A copy of the original GlobeNewswire news release distribution can be viewed here.


John Hoover, Tellabs Marketing Director
John Hoover
Director of Marketing
John Hoover is a Marketing Director at Tellabs and 2024 Board Chair of the Association for Promoting Optical LAN (APOLAN). Over the past 20 years, John has influenced industry milestones such as early passive optical network deployments, video implementations, wireless and more recently enterprise Passive Optical LAN adoption.