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CTO INDUSTRY INSIGHTS

Extending Outside of DOCSIS Service Areas with Gfast over Coax


Extending Outside of DOCSIS Service Areas with Gfast over Coax

Historically the Cable community and the Telco community have rarely seen eye to eye. Usually pitched in direct competition with each other, it was a rarity to witness any commonality in the services they offered, or the way in which they were delivered. In recent years that has begun to change, with two major forces catalyzing that change. Starting with the shift to all IP services, service providers leveraging an all IP architecture have become transport and access technology agnostic, providing a path to desperately needed footprint expansion to secure the scale needed to compete with cloud-based OTT providers.

Next, we have the emergence of multi-disciplined operators. Typically born from a pure- mobile heritage, these operators of scale and means have been securing fixed-access footprints at a ferocious pace. For the multi-disciplined operator, there is no religion when it comes to the access technology footprints they are prepared to acquire, with DOCSIS, GPON, DSL, and FWA all being viewed as candidate targets.

These two trends have set the foundation upon which those service providers of a DOCSIS persuasion can expand their footprint. MSOs can avail of significantly reduced build costs and an accelerated time to market when servicing off-net locations where the DOCSIS network does not currently reach.

Advancements in traditional telecom broadband access technologies have advanced the art to the point where Gigabit symmetric services can now be realized utilizing Gfast technologies. Gfast, when applied to RG6 or similar grade coaxial cables, can achieve these capacities for long distances. Similar to the U.S., throughout Europe and the MENA regions there are many large multi-dwelling units that take delivery of their TV services from a communal satellite installation located on the roof or on nearby secured grounds. In these scenarios, each residential unit has a dedicated coaxial cable feed from a common RF splitter. The ADTRAN SDX2221-16CX dedicated Gfast over Coax DPU permits all operators to leverage these premium point-to-point coaxial cables to comfortably deliver dedicated Gigabit symmetric services to each subscriber. By utilizing existing coaxial cable assets, no expensive and intrusive in-building re-cabling is required. Coexisting with the current satellite TV signals, consumers can continue to avail of their current TV service, while being brought firmly into the fold of the Gigabit Society.

Whether it is a satellite TV provider seeking to provide broadband services, a cable operator seeking to expand footprint, or a traditional telco looking to maximize the potential of Gfast, the ADTRAN SDX2221-16CX is the only IP68 sealed, routine maintenance-free solution that eliminates near-end cross talk, to permit true 1Gbps service up and downstream to each subscriber.

The gift of Gfast from the telecom community to the cable and satellite community is one that will be embraced in the year ahead to assist with the industry-wide quest for Gigabit Society.