GrantWave EPON+EOC two-way network transformation solution is mainly applicable to have not been bi-directional transformed cable TV networks, if the distribution network transformation is difficult during the preparation for fiber transformation, we recommend to adopt EPON+EOC two-way network transformation solution. In order to meet the digital entire transfer requirements, the network which need bi-directional network transformation, adopting EPON+EOC two-way network transformation solution to transform, the main truck using PON structure, distribution network using EOC, making full use of existing fiber resources as well as the existing coaxial distribution network, as long as increasing a few equipments, it can be realized bi-directional function.

Currently the electricity lines, coaxial cable and five-type lines are the most common cable into the household, because of its frequency bandwidth and relatively good shielded performance, coaxial cable becomes the ideal medium for broadband network access. Along with the digital TV speedy whole translation，network games, VOD, VOIP, broadband and other businesses emerging, subscribers demand more and more intense on interaction, one-way broadcast cable network can not meet new business requirements, require for bi-directional network transformation is very urgent. GrantWave EOC products of EPON+EOC series are the user access network solution which achieve two-way interactive services based on existing HFC networks. GrantWave EOC products of EPON+EOC series are based on Home Plug BPL technology multimedia access device. Its main function is doing Ethernet signal OFDM modulation, and making the modulated signals and TV signals to be mixed into the coaxial cable to be transmitted, thus transmit multimedia signals to the client through the existing coaxial CATV network. Under the premise of no need big changes in user distribution network, transform the original one-way HFC network into two-way, digital, with capable of carrying multimedia services to broadband network platform in less cost and quantities.

Contrapose the characteristic of radio and television network, plus our company`s 7 years R&D experiences on radio and television network transmission equipments, GrantWave launches three-in –one, two-in-one and independence EOC series products. As shown in figure 6, this series of products offer the HFC network transmission channel from the Node to the user coaxial distribution network part. GrantWave EOC products can also be integrated with EPON optical fiber transmission technology, build a complete end-to-end two-way network transformation solution.