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Telecommunications Internode launches trial of 3Mbps upstream ADSL2+
Telecommunications Internode launches trial of 3Mbps upstream ADSL2+ | Internode launches trial of 3Mbps upstream ADSL2+ |
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| Written by Stuart Corner | |
| Thursday, 20 July 2006 | |
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All current ADSL2+ offerings in Australia use Annex A which has a maximum upstream speed of 1Mbps. The new service is expected to be popular with businesses as an alternative to much more costly leased lines. Internode managing director, Simon Hackett, announced the trial with a posting on Whirlpool calling for trial participants. "Internode has negotiated exclusive permission from Telstra to operate an ACIF supported limited trial of the Annex M deployment mode in real-world Internode ADSL2+ Extreme customer services, in the period running up to the full ratification of the use of Annex M mode in Australia," Hackett said. Internode will be able to operate a limited number of services on any exchange in which it has ADSL2+ DSLAMs installed. Hackett said: "We don't expect to be able to offer a trial slot to everyone who wants one. And because we're seeking a good spread of exchange locations and line lengths, we will be hand-picking the trial customers from those who apply." iTWire reported plans for the trial in May when Internode said it had completed all technical research and preparation necessary to deploy Annex M and was waiting only an approval from ACIF to launch its service, a move which would clear the regulatory path for other broadband service providers to offer the same service. However as the service is carried on the Telstra network it also needed approval from Telstra to launch the trial. This has now been obtained. Paul Brooks of Layer 10 Consulting, who has worked consulting to Internode on getting Annex M accepted by ACIF said that today's announcement was the culmination of an eight month process. "The for-comment period on the amended draft of the ACIF standard has now closed and it is just waiting on ACIF board approval." Brooks said he believed uplink speeds of 2.8 to 3Mbps should be achievable close to an exchange and speeds of around 2Mbps at distances up to 1.5kms. ADSL2+ Annex A has a maximum uplink speed of 1Mbps. He said that the process of gaining approval for Annex M had required extensive modelling of its performance over various cable lengths to assess potential interference with other ADSL services. Now that Internode has borne the cost of this work, any ISP with DSLAMs capable of supporting Annex M will be to offer the service, but Brooks said they would require considerable product development work in order to be able to do so. A unique feature of Annex M is that there are several operating modes and each service must be manually configured on the DSLAM according to the length and other characteristics of the line over which it is delivered.
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