Switch and insertion networks in optical cable TV system

摘要: An optical cable television system provides a large channel capacity and uses shared resources, whereby the more expensive hardware is over number of customers so as to minimize cost per customer. A video switch network provided which minimizes temptation subscribers pirate signals since pay view or on demand are only upon request someone within node corresponding neighborhood. program center continuously plays programs, such movies, at time-staggered starts that any subscriber will have very minimal delays before seeing particular requested. tuneable filter in order onto an fiber going arrangement in-fiber grating remove insert different frequencies. Local insertion various sources, local commercials, accomplished effectively by making relatively high point distribution chain. interface provide telephone company twisted pair wires utilized.