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SingTel To Deliver 100Mbps Over Copper |
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Written by Adam Gosling
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Wednesday, 28 June 2006 |
The island nation of Singapore is set to get a high
speed Internet access network which will allow 100Mbps (symmetric) over
existing copper infrastructure after its leading telco signed a supply deal
with Ericsson.
The ultra-high speed fixed network will be based on Ericsson's
EDA VDSL2 technology and will initially be delivered as a trial network.
SingTel will be the first network operator in South East Asia to deploy the VDSL2 broadband technology.
The advanced xDSL network protocol will enable a
comprehensive triple play service (voice, video, data) over the legacy local loop.
The trouble with VDSL2 is that the speed falls quickly over
longer distances. From a "theoretical" speed of 250Mbs if you were connected
directly to the source, it falls to 100Mbps if you are just 500 meters away.
By the time it reaches 1.6Km the speed is roughly equivalent
to ADSL2+.
One of the main advantages with the new VDSL2 standard is
that it uses Ethernet as the multiplexing technology in the first mile. The
elimination of ATM in the first mile means the architecture is Ethernet end-to-end.
Service providers can then use VLANs as the delivery mechanism across the
entire access network.
Within the VDSL2 standard, features such as dual latency
enable quality to be built into the network in all layers, which is required to
deliver services such as VoIP and IPTV (Internet Protocol Television).
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