EPON (Ethernet passive optical network) optical network unit supporting CATV (cable television) optical access and fusing EoC (Ethernet over coaxial cable) functions

Abstract

The invention discloses an EPON (Ethernet passive optical network) optical network unit supporting a CATV (cable television) optical access and fusing EoC (Ethernet over coaxial cable) functions, which comprises an EPON remote machine, an EoC head end, a CATV optical receiving module and an inter-plate connector, wherein the EPON remote machine and the EoC head end are connected by the inter-plate connector; the EPON remote machine completes the configuration management of devices and the PON (passive optical network) access of IP (internet protocol) data; the inter-plate connector transmits 100Mbps Ethernet data, reset signals and port connection status indication signals; the EoC head end completes the mutual conversion of the Ethernet data and low-frequency data of an EoC and the coupling of high-frequency / low-frequency data of the EoC; and the CATV optical receiving module is used for completing the conversion between optical signals of a CATV and radio-frequency signals of the CATV. The optical network unit disclosed by the invention can provide reliable IP data and CATV signal access without adding new CATV optical receivers and corollary devices, therefore, the networking cost, network complexity and construction process of an HFC (hybrid fiber-coaxial) are reduced.

Description

technical field [0001] The present invention relates to the application of EoC (Ethernet over Coaxial cable, Ethernet technology based on coaxial cable transmission) in the field of optical communication, in particular to a kind of EPON that supports CATV (Cable Television, cable television) optical access and integrates EoC functions (Ethernet Passive Optical Network, Ethernet Passive Optical Network) ONU (Optical Network Unit, Optical Network Unit). Background technique [0002] The EoC coaxial Ethernet system is a series of products specially designed for radio and television cable network operators to realize bidirectional data transmission based on the existing coaxial cable distribution network. It is a HFC (Hybrid Fiber-Coaxial, optical cable-coaxial cable hybrid network) An economical and efficient solution for realizing two-way network reformation. The EoC system can work in the active and passive cable distribution network environment, and quickly realize digital ...

AI Technical Summary

Problems solved by technology

Therefore, for the new community EoC access scenario, if the CATV electrical signal access mode is still used, not only the existing optical fiber resources of the community are wasted, but also multi-level CATV electrical signal amplifiers and related supporting equipment need to be installed inside the community. The increased number of intermediate links increases the energy consumption of the system and complicates the network environment, which eventually leads to difficulties in network operation and maintenance after EoC access

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