System and method for data, backfeed and voice coexistence on a pair of telephone lines

Abstract

The invention discloses a system and a method for allowing data, reverse power feed and voice to coexist in a pair of telephone wires, and relates to the field of communication. The system comprises a distribution point unit (DPU), customer premise equipment (CPE), power sourcing equipment (PSE) and at least one telephone adapter, wherein the DPU is connected to the Internet via an optical fiber, the DPU is connected to a public switched telephone network (PSTN) via a plain old telephone service (POTS) interface, the DPU is connected to a user home via the pair of telephone wires; the CPE, the PSE and the telephone adapter are all connected to the pair of telephone wires from the DPU to the user home; the CPE is connected to a PC or a home gateway of the user home via a data service interface; the PSE is connected with the electric supply of the user home via an electric supply interface; the telephone adapter is connected with a telephone in the user home via a telephone interface; and the telephone adapter is an active telephone adapter powered by the telephone wires. According to the system and method, the coexistence of reverse power feed and telephone voice services on the same pair of telephone wires can be achieved, and thus providing services for customers together with the data service.

Description

technical field [0001] The invention relates to the field of communication, in particular to a system and method in which data, reverse feed and voice coexist on a pair of telephone lines. Background technique [0002] As broadband users have higher and higher requirements for access rates, FTTH (Fiber To The Home) develops rapidly. However, high network construction costs hinder operators from fully deploying FTTH networks, mainly because: For non-newly built areas, it is difficult to implement fiber perforation and indoor wiring; indoor fiber terminal installation requires professional skills, and professionals must be sent to the door; the labor cost of installation and maintenance workers is rising year by year. For this reason, FTTC (Fiber To The Curb, Fiber To The Curb, Fiber To The Curb) and FTTDP (Fiber To The Distribution Point, Fiber To The Distribution Point) access methods are also booming simultaneously. [0003] For FTTDP, it can be further divided into FTTCab...

AI Technical Summary

Problems solved by technology

The direction of the power supply loop of this DC channel is different from that of the voice power supply loop. The signal definitions of backfeed and voice are different. In the case of backfeed, traditional voice services cannot be carried out. Therefore, backfeed and voice cannot directly coexist on the same pair of telephone lines

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