Telecom's DWDM network complete

Telecom has boosted the capacity of its fibre-optic backbone by almost 50-fold using dense wave division multiplexing.

Telecom has boosted the capacity of its fibre-optic backbone by almost 50-fold using dense wave division multiplexing.

The upgrade network, understood to have cost $20 million, will carry ATM (asynchronous transfer mode), IP (internet protocol) and SDH (synchronous digital hierarchy) traffic.

But the extra capacity -- up to 60 channels of 10Gbit/s -- won't mean abandonment of the 0867 numbering system for internet service providers. Telecom spokesman Glen Sowry says the capacity boost is in the backbone whereas 0867 was implemented to relieve traffic in the local loop.

Cisco built the DWDM infrastructure, making it the company’s biggest DWDM installation in the Asia-Pacific region.

Last month Canada-based Nortel Networks won the contract to provide DWDM gear for an optical fibre network being rolled out by Telstra Saturn.

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