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In recent years, with the continuous improvement of communications technology, the development of the core network SDH transmission bandwidth due to the rapid increase, but due to the transmission medium access network transmission capacity constraints are still weak, and therefore can not meet people on television, data, voice, and other multi- business needs. Therefore, only the access network bandwidth exceeded \Fiber is by far the best transmission medium, optical fiber access technology compared with other access technologies, the biggest advantage of available bandwidth, and can provide bandwidth up 75000Gb / s. Fiber access network and transmission quality, long distance transmission, anti-interference ability, high network reliability, saving pipeline resource characteristics, therefore optical access network has become the best solution for the access network. Passive optical networks (Passive Optical Networking, PON) technology is the most promising optical access network technology, PON technology has gone from narrowband to APON PON EPON and GPON and then the development process. Currently, the EPON and Ethernet PON technology combines the advantages of technology, low cost, large bandwidth, scalability, compatibility, and easy management features, and thus become the focus of concern. EPON is a multipoint network structure, passive optical transmission, the downlink broadcast method, the uplink data using the TDMA method to achieve two-way transmission optical access technology. EOC (Ethernet Over Coax) technology is the IP data signal and the TV signal are multiplexed together, with the same coaxial cable of the multiplex signal into the user technology. Not affect the signal transmission cable, there are two-way exclusive broadband integrated service access, has a good adaptability and flexible network access solution. EOC The basic principle is the transmission of CATV signals outside the frequency range is divided is transmitted on different frequency ranges, the downlink data signal. EOC program is technically different between the main difference is that the data transmission using different frequency bands and modulation, which can be divided into passive baseband transmission, two types of active modulated transmission technology. According to the characteristics of EPON and EOC technology, this paper, the organic combination of the two technologies, that is composed of EPON EOC optical access solutions together to provide users with CATV, IP and data services integrated services. IP data network to transmit optical signals to the cell by the EPON optical terminal box, CATV optical signal via the optical transmitter consists of an optical fiber transmission to the cell terminal box, and then use the optical terminal box at EOC technology put them into the user's home, completing the full service transmission. EPON uplink and downlink optical wavelengths were 1310nnm and 1490nm, CATV optical wavelength of 1550nm. In this paper, EPON EOC optical access solutions to build an experimental platform, and conducted operational testing. Currently, the use of hybrid fiber coaxial cable network transmission network structure, bandwidth is rich in resources, but it is based on one-way broadcast-oriented. In order to fully utilize the network bandwidth to achieve a rich interactive access services must be two-way transformation. As the existing HFC network structure and EPON network structure is very similar, so EPON EOC program transformation program than other more practical applications. This paper describes the engineering design issues that need attention, and simply cited a Project. Finally EPON EOC made a summary and outlook.
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