In a submission to the National Broadband Network expert panel, Internode managing director Simon Hackett dismissed the "myth" that FTTN would make the current generation of ADSL2+ equipment redundant. "It is entirely possible - and for pro-competitive outcomes it is necessary - to preserve indefinitely the existing facilities-based investment framework, including ADSL2+, while building and operating a future FTTN-based National Broadband Network," he said.
"If we start from the mistaken belief that we must do a full Node cut-over - that is, completely disconnect all of the copper wires leading back to the exchange from every area in which a new Node is deployed - the consequences for the industry and consumers will be detrimental and long-lasting." These include:
In his submission, Mr. Hackett notes that the VDSL2 DSL standard was the most logical mechanism to "drive" the shorter copper loops of an FTTN network.
"VDSL2 is essentially the next incremental evolution after ADSL2+ : By operating across a far wider range of frequencies 'on the wire', VDSL2 offers higher peak speeds than ADSL2+ with the potential of maximum copper-line based speeds in the order of 50-100 megabits per second," he said.
"However the claim that it is technically necessary to remove exchange-based ADSL2+ services in order to deploy Node-based VDSL2 is simply not true. Strong technical evidence exists to show how this 'hybrid' mode of coexistence can work very effectively in practice."
"Indeed, the critical point of this entire submission is that exchange-based ADSL2+ services can coexist with Node-based VDSL2 services, with practically no performance impact to either service type."
"Node-based VDSL2 services, with practically no performance impact to either service type."
Other "myths" challenged by Mr. Hackett's National Broadband Network submission include: