Distributed access architecture (DAA) has advanced the evolution of cable networks through the decentralisation of selected headend functions. As the decentralised parts process the most time-sensitive tasks, the remaining centralised headend functions become easier to virtualise. DAA is a rational step for the coax-containing network development strategy that leads to 10 Gbps broadband speeds over existing coaxial cables.

The Distributed Access momentum

DAA technologies, including Remote PHY and MACPHY, have unleashed a major transformation from analogue optics to digital Ethernet and IP-based transmission. This digitalisation enables the use of the Converged Interconnect Network (CIN), which accelerates fixed-mobile convergence.

DAA and CIN technologies reduce operators’ costs per subscriber in the following two steps: the first comprises the use of DOCSIS 3.1-based Remote PHY nodes together with CIN, while the second comprises the virtualisation of headend functions and deployment of Remote MACPHY nodes.

Stages and building blocks of successful distributed access deployments

Industry interoperability leading the way

A prerequisite for sustainable distributed access deployments is an open and standards-based ecosystem that engages several product suppliers, chipset vendors, and MSOs across the cable industry. Teleste has been active on the collaboration front, and the interoperability of our distributed access solutions with major CCAP core vendors has already been proven in tests, trials, and field deployments.

FeatureCisco cBR-8CommScope E6000Casa C100GHarmonic CableOS
DOCSIS 3.0 US and DS
DOCSIS 3.1 US and DS
Video, asynchronous
Video, synchronous
Core redundancy
NDR / NDF OOB channels
Wide NDF for FM (DVB-T…)
Viavi US sweep + monitoringIn progressIn progress
Pilot & Leakage tones

Expert insights

#TelesteLive webinar series

#TelesteLive webinar: Network Transformation in 2020’s

Organised together with Digital TV Europe, #TelesteLIVE webinar focused on the cable industry’s biggest challenge for the 2020’s: the ongoing network transformation and how to answer the growing need for network capacity generated by consumers and businesses alike.

Video delivery over distributed access networks

Learn how to run broadcast television services that fullfill your customers’ expectations of attractive and entertaining TV experience today as well as after the shift to distributed access architecture.