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User side optical network unit

A technology of optical network unit and network unit, which is applied in star/tree network, electrical components, selection device of multiplexing system, etc., can solve the problem of not providing changes of various setting values, and achieve convenience The effect of improved performance and improved reliability

Active Publication Date: 2012-05-30
FURUKAWA ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Furthermore, in a general ONU, since the interface with the LAN device is only an Ethernet (registered trademark) cable, there is a problem that there is no interface to provide a mechanism for changing various setting values ​​other than the main signal circuit.

Method used

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  • User side optical network unit
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no. 1 Embodiment approach

[0055] Referring to the accompanying drawings, the structure of the user-side optical network unit in the preferred embodiment of the present invention will be described in detail. A block diagram showing the configuration of the user-side optical network unit (ONU) according to the first embodiment of the present invention is shown in figure 1 Indicated. Additionally, will use figure 1 An example of the PON type optical transmission system constituted by the ONU 100 of the present embodiment shown in figure 2 Indicated.

[0056] exist figure 2In the PON type optical transmission system 1, an optical line terminal (OLT) 11 is provided in a PON interface card 10 located at the center, and one end of an optical fiber 20 that is an optical transmission path is connected to an optical input and output end of the OLT 11. In addition, the optical coupler (optical multiplexer / demultiplexer) 30 has one multiplexer end and two or more multiplexer ends, and the other end of the ...

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Abstract

The present invention provides a side light network unit, capable of acquiring LAN apparatus setting data from transmission communication signal to center, and outputting the same to the LAN apparatus. An ONU function section (120) is provided with a setting apparatus acquiring mechanism (160), which uses channel set by communication signal terminal-treated by a terminal processing mechanism (121) to acquire the LAN apparatus setting data. The setting apparatus acquiring mechanism (160) transmits acquired the LAN apparatus setting data from a second serial signal terminal (124) to a second serial I / F section (142) via a setting data transmission mechanism, that is signal lines (161a, 161b), then the signal is outputted to the LAN apparatus (70).

Description

technical field [0001] The invention relates to a user-side optical network unit arranged in a user's residence in a PON optical transmission system. Background technique [0002] In optical networks such as FTTH and CATV, as described in the following patent document 1, the optical transmission path connected to the center (center) is branched by a passive optical splitter, and the optical transmission path is laid to multiple users. Residential PON (Passive Optical Network) optical transmission system. Such an optical transmission system is also called PDS (Passive Double Star). [0003] In PON optical transmission systems, such as Figure 6 As shown, the central optical line terminal (OLT: Optical Line Termination) is connected to the multiplexer end of the optical splitter 903 through the optical fiber 902, and the optical network unit (ONU : Optical Network Unit) 905-1, ... 905-n are connected to multiple demultiplexing ends of the optical splitter 903. [0004] The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q11/00H04B10/158H04L12/28H04L12/44
Inventor 下大迫和隆网干胜也尾高邦雄
Owner FURUKAWA ELECTRIC CO LTD