Design Of EOC Master System Based On Bidirectional Network Upgrade

With the advent of the era of triple-play, the traditional television network has been completely unable to meet the business requirements of triple-play. In order to the development of the cable TV industry in our country, the SARFT(the State Administration of Radio Film and Television of China) put forward policy to build the next generation of cable TV network, go on large-scale two-way transformation of film and radio and television networks, advance the triple-play, bring about two-way interaction ability of radio and television network. For the construction plan of the next generation of radio and television network, cable TV operators must immediately start current cable network upgrade, improve the network of business access ability. To choose a retrofit scheme of the effective feasible access is very important. This paper starts from the present situation of the cable TV network development of our country, puts forward the appropriate two-way network retrofit scheme, and details the office end equipment needed for the design and implementation of.According to the situation of the development of cable TV network in China, make good use of the coaxial cable of the network resources is an important premise. EOC is a technology that makes the Ethernet data signal with the cable TV signal multiplexing, using coaxial cable for data transmission.This technology not only maintains the cable TV signal transmission, but also can achieve a two-way broadband integrated service access. So we choose the EOC technology for user access. EOC technology has many kinds, mainstream Homeplug AV, Homeplug BPL, Wifi frequency reduction technology, MOCA technology, etc.After comparison, we choose Homeplug AV technology as our solution. We analyzes the shortcomings in the current mainstream Homeplug AV solutions, put forward a new generation of Homeplug AV solutions.This topic designs and implements the bureau of EOC system terminal equipment in Shandong Le-sen electronic Co., Ltd. According to the functional requirements of equipments for module partition, type selection of Mstar MSE500chip as a system of master control chip and draw the circuit principle diagram of each module on the basis of the requirement and data.In Shandong Le-sen electronic Co., Ltd. electronics lab, we built hardware platform equipment for performance testing to verify the reliability and performance requirements of the product. At the last of this paper is the summary for the existing problems and the future development.