Current broadband services over cable TV are based on the Data Over Cable Service Interface Specification (DOCSIS). This requires an upgraded cable network to support two-way interactive data handling together with an active cable modem at the consumer end, which can, at most, only provide asymmetric connectivity. Project coordinator @Home, former Essent Kabelcom, the cable TV supplier for much of The Netherlands, worked closely with two of its suppliers to develop the technology required. “We have a long relationship with both Teleste in Finland and Tratec Telecom in the Netherlands and so we brainstormed the idea to them,” explains Jelle Cnossen of @Home.
Higher speeds can be provided over phone lines using 56 MB/s VDSL technology- but this is limited to short distances from exchanges. The VIRTUAL FIBRE project set out to boost Internet speeds over the existing copper-based coaxial TV cable connections into the house. The resulting technology offers speeds up to 10 times that possible with existing cable TV Internet connection. Moreover, it provides Ethernet local area network (LAN) connectivity with no need for a consumer-side modem; users simply plug their personal computers (PC’s) into a standard connector on the wall. And, there is no active component; the Ethernet connection is free from interruptions.
A pilot trial in the Dutch town of Boxmeer demonstrated the success of the Ethernet-to-the-home (EttH) approach. Now, all 28,000 local residents have symmetrical access to the Internet at 10 MB/s, with local businesses able to obtain 50 MB/s symmetrical data connectivity. The technology has subsequently been developed to provide 100 MB/s connectivity and has already been sold to South Korea, demonstrating the global market for such an approach.
Pulling partners together
“This was the first time that we had been involved in a EUREKA project,” explains Esko Myllyla of Teleste, the Finnish project partner responsible for much of the technical work. “EUREKA labelling was not absolutely necessary for us but was important in the eyes of our local public funding authorities. Moreover, the EUREKA label helped pull the three parties in this project together more strongly – that was the key benefit. We all realised that we were not developing things each on our own behalf but rather we were developing something together.”
Sally Horspool | alfa
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Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
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