U.K. firm pushes fiber through the sewers

By Colin Barker
News.com

http://news.com.com/U.K.+firm+pushes+fiber+through+the+sewers/2100-1034_3-6064133.html

Story last modified Mon Apr 24 08:37:33 PDT 2006



As the ground just below city streets becomes ever more jammed with cables 
of all types, it's becoming more difficult for network companies to find 
new pathways.

Now, H2O Networks of North Wales has come up with a cost-effective way of 
laying fiber through the nation's sewage system.

Using the sewers, organizations can set up their IT and telecommunications 
networks with virtually unlimited bandwidth. H2O's Focus (Fiber Optical 
Underground Sewer System) system "is a fast and cost-effective way to lay 
cable and link up any location without the high costs and disruption caused 
by traditional cabling methods," the company said last week.

There is great demand to find new ways to lay the vast amount of cable 
needed to satisfy the massive and continuing expansion of 
telecommunications networks and the Internet. Sewers offer ready-made 
channels for cable to follow, but there are some practical difficulties.

Sewers are built in such a way that the channel is clear enough to allow 
the effluent to flow freely, and cables must be laid so that they don't 
hamper this. The cables also need to be robust enough to be able to sit 
unattached in the sewer and remain resistant to ebbs and flows and the 
actions of the sewers' main residents, the rats.

H20 has solved the practical difficulties, according to managing director 
Elfed Thomas. "We have had to convince all the water companies that our 
system can be laid in the sewer without damaging the sewers or blocking 
them," he told ZDNet UK.

According to Thomas, the cabling system used by H2O is easy to install in 
the sewers, entirely resistant to rats and other sewer inhabitants and, at 
about $6.23 per meter, very cost-effective to lay.

The low cost makes the system "ideal as a bespoke solution for a separate 
secure network or for disaster recovery," said Thomas. But most important, 
according to Thomas, the network is available for a fixed cost rather a 
charge based on bandwidth.

"Between 7 and 15 percent of the cable will have to be laid using more 
conventional methods," said Thomas. The majority is just pulled through the 
sewer, which is where much of the savings come. Using the H2O method, a 
cable can be laid up to 80 percent faster than using traditional methods, 
the company said.

The company is attracting a lot of interest from all over, but especially 
from universities, Thomas said, although he was reluctant to name them. 
"The universities can see the benefit and we have four deploying it, but 
they don't want to say anything just yet," said Thomas. "They want to make 
a bit of a splash about it."

H20 has three solutions: Darc provides a low-cost rental of fiber cores and 
offers flexible terms and unlimited capacity; Darc Reserve is for 
organizations that have existing networks but need to call upon extra 
capacity from time to time or in case of a disaster; and Xtreme is designed 
specifically for disaster recovery--the high-security cable can be 
connected to buildings ready for use in an emergency.


=================================================
George Antunes                    Voice (713) 743-3923
Associate Professor               Fax   (713) 743-3927
Political Science                    Internet: antunes at uh dot edu
University of Houston
Houston, TX 77204-3011         



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