Radio and television operators to focus on long-term construction of the HFC network, has a large HFC access network, the use of HFC as a home media for maximum practicality and economy.  HFC network of coaxial cable radio and television network is an ideal data transmission media, particularly in the last 100m to support the bandwidth capacity is much higher than five-line or telephone line resources.  Thus, the transformation in two-way radio and television networks to fiber and HFC two media integration, dig the value of existing network, radio and television operators are concerned.  Now more economically viable technical solutions of two-way transformation there are three kinds: CMTS, EPON + LAN and EPON + EoC.

EoC technology using EPON and technological transformation of traditional cable television network, EPON equipment can be used to complete the transformation of two-way fiber optic lines, coaxial cable access network the user two-way transformation, the use of active EoC for networking, then under active EoC in the first ONU client, covering all users under the optical node, the user needs to have two-way client access using EoC. This will be one-way broadcast transmission network construction for the two-way transmission network.

EPON + EoC of the cable bridge or switch placed in the corridor outside, covering a building or a unit. Network Node is now paved, do not configure the CATV cable bridge switch module, RF cable through the cable access to the bridge switches, ONU cable bridge in the switch module configuration, data, or interactive TV signal return.

If the network is down because the light receiver, cable bridge switches need to be integrated optical receiver functions. Then need to configure the CATV cable bridge switch module, the TV signal through fiber optic cable bridge access to the switch. ONU cable bridge in the switch module configuration, data, or interactive TV signal return. Alternatively, if the existing network has been laid Node, ONU placed outside the building, access to several single-port cable bridge switches, the data signal through the cable access to the cable bridge switches, data, or interactive TV signals back transmission, cable TV signal via RF cable bridge access to the switch.

Radio operators help using EPON and comprehensive utilization of network resources EoC technology, fast access to complete NGB layer construction, digital two-way transformation, reducing the large number of redundant construction, construction and operation and maintenance cost savings. Using EPON + EoC solution, users do not need to make any changes to the interior wiring, simply increase the CNU terminal equipment can be two-way, interactive, multi-function, multi-service, to bring rich content to enjoy the triple play. EPON + EoC program to upgrade the overall level of technology and business cable network carrying capacity, the frequency bandwidth of cable television to play, low-cost, easy to spread the advantages of the digital cable TV into every household of the multimedia information platform.