Please choose your delivery country and your customer group
The SDH transmission standard opens up interesting opportunities for video transmission. One important application is ring structures based on fibre optics for distribution of video channels to CATV head-end stations. Add/drop multiplexers allow programmes to be extracted and inserted at any node in the ring. Some of these features have been employed in the DIMOSAURUS field trial in the German state of Thuringia. In conjunction with SDH equipment, the videocoding system DIMOS from PKI and modulators and demodulators from Hirschmann, a CATV trunk system has been set up which can transmit up to 64 TV channels. This system has now been running for more than a year. It provides reliable and high-quality service for more than 150,000 households.