Novel optical network terminal of ATM-PON (Asynchronous Transfer Mode-Passive Optical Network) access network system

1. The technology of ATM-PON and optical network terminal, which is applied in the direction of multiplexing system selection device, transmission system, digital transmission system, etc., can solve problems such as the inability to provide fiber-to-the-home requirements, and achieve ONT performance, The effect of simplifying system design and facilitating upgrade

Inactive Publication Date: 2012-05-30
DALIAN ZHAOYANG SOFTWARE TECH
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Problems solved by technology

[0003] Chinese patent 01106561 (publication number CN1308434A) discloses an asynchronous transfer mode passive optical network system. The optical network user terminal equipment in the system has the following disadvantages: it is an optical network unit, not a user terminal equipment, and cannot To provide fiber-to-the-home (FTTH) requirements, it is necessary to provide users with various business services through other means

Method used

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  • Novel optical network terminal of ATM-PON (Asynchronous Transfer Mode-Passive Optical Network) access network system
  • Novel optical network terminal of ATM-PON (Asynchronous Transfer Mode-Passive Optical Network) access network system
  • Novel optical network terminal of ATM-PON (Asynchronous Transfer Mode-Passive Optical Network) access network system

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Embodiment Construction

[0013] combine figure 2 , is a schematic diagram of the physical layer circuit system structure. It is mainly composed of an optical module, a clock recovery chip, and an FPGA chip. Among them, the optical module completes the photoelectric / electro-optic conversion function of the physical medium sublayer function, the clock recovery chip completes the bit synchronization function, and the FPGA chip completes the TC layer function. At the same time, the physical layer circuit board also has a power supply module to provide power for the system; a circuit status display and drive module to display the status of the system; FPGA configuration PROM module to store VHDL programs; a test input module that can input pulse and level signals ;Have UTOPIA interface module, provide interface with ATM layer: have reserved interface and FPGA status display module, provide FPGA debugging means.

[0014] combine image 3 , which is a schematic diagram of the sub-module structure of the...

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Abstract

The invention provides a novel optical network terminal of an ATM-PON (Asynchronous Transfer Mode-Passive Optical Network) access network system, comprising a photo-electric / electro-photo conversion module, a clock recovery module, a transmission convergence layer module, a Utopia interface module, a channel layer module and an adaptation layer and high layer universal software platform module which have the connection relationship as follows: a signal in an ascending direction sequentially flows to the photo-electric / electro-photo conversion module, the clock recovery module, the transmission convergence layer module, the Utopia interface module, an ATM layer module and the adaptation layer and high layer universal software platform module; and a signal in a descending direction sequentially flows to the adaptation layer and high layer universal software platform module, the ATM layer module, the Utopia interface module, the transmission convergence layer module and the photo-electric / electro-photo conversion module. The novel optical network terminal can meet the requirement of broadband access of fiber to the home (FTTH), provide 155MHz bandwidth which is vertically symmetrically for each user and provide various kinds of broadband business service for the user.

Description

technical field [0001] The invention relates to an optical network user end equipment (ONT) in an asynchronous transfer mode passive optical network (ATM-PON) system, in particular to a new type of optical network terminal of the ATM-PON access network system. Background technique [0002] In today's information age, people's demand for information is becoming more and more urgent, and the forms of demand are becoming more and more diverse. Facing the GHz bandwidth of the telecom backbone network, the development of the access network at the edge of the telecom network has been very slow, with backward technology and narrow bandwidth. Therefore, the development of the access network is imminent. The Asynchronous Transfer Mode-based Passive Optical Network (APON) combines the multi-service multi-bit rate support capability of ATM and the transparent broadband transmission capability of PON, and becomes an ideal fiber access solution in the 21st century due to its economy and...

Claims

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Application Information

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IPC IPC(8): H04B10/14H04L1/00H04Q11/00H04B10/40
Inventor 栾晓健
Owner DALIAN ZHAOYANG SOFTWARE TECH
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