CN102480654A - Optical-fiber network node terminal and passive optical-fiber network (PON) system - Google Patents

Optical-fiber network node terminal and passive optical-fiber network (PON) system Download PDF

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Publication number
CN102480654A
CN102480654A CN2010105672859A CN201010567285A CN102480654A CN 102480654 A CN102480654 A CN 102480654A CN 2010105672859 A CN2010105672859 A CN 2010105672859A CN 201010567285 A CN201010567285 A CN 201010567285A CN 102480654 A CN102480654 A CN 102480654A
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China
Prior art keywords
serial ports
pon
module
terminal
serial
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Pending
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CN2010105672859A
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Chinese (zh)
Inventor
张海军
马小松
金国华
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ZTE Corp
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ZTE Corp
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Priority to CN2010105672859A priority Critical patent/CN102480654A/en
Priority to PCT/CN2011/074914 priority patent/WO2012071870A1/en
Publication of CN102480654A publication Critical patent/CN102480654A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking
    • H04B10/272—Star-type networks or tree-type networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)

Abstract

The invention discloses an optical-fiber network node terminal and a passive optical-fiber network (PON) system. The optical-fiber network node terminal comprises one or more serial ports, a PON module and a serial port module, wherein the serial port module is connected with the PON module and one or more serial ports and is used for the data transmission between the PON module and the one or more serial ports. Due to the adoption of the optical-fiber network node terminal and the PON system, the problem of the traditional serial port communication can be solved, and the optical communication carrying of the serial port can be realized.

Description

Optical network node terminal and passive optical network
Technical field
The present invention relates to the communications field, in particular to a kind of optical network node ONU terminal and passive optical network PON system.
Background technology
In the Industry Control Application field; The tradition serial communication is used comparatively extensive; But problems such as can increasing trunk telecommunication cable quantity that traditional serial communication is because of existing, and signal cable is subject to disturb, easy restricted, the many serial ports of transmission range are worked simultaneously; Being difficult to satisfying present industrial control field to the signal transmission requirements, but because of it is widely used, serial ports also is difficult to replace at short notice.
Summary of the invention
Main purpose of the present invention is to provide a kind of optical network node ONU terminal and passive optical network PON system, one of to address the above problem at least.
According to an aspect of the present invention, a kind of optical network node ONU is provided the terminal, has comprised: one or more serial ports; The passive optical network PON module; Serial port module is connected with said one or more serial ports with said PON module, is used between said PON module and said one or more serial ports, transmitting data.
Preferably, said serial port module comprises: the serial ports transceiver of one or more types, wherein, said serial ports transceiver is used to connect and the corresponding serial ports of said serial ports transceiver type.
Preferably, said serial port module also comprises: universal asynchronous reception/dispensing device UART extended chip, link to each other with said PON module with said serial ports transceiver, and be used between said serial ports transceiver and said PON module, transmitting data.
Preferably, said serial port module also comprises: switch, be connected with said serial ports transceiver with said UART extended chip, and be used to select serial ports.
Preferably, said PON module is connected through local bus Localbus with said serial port module.
According to another aspect of the present invention, a kind of passive optical network PON system is provided also, has comprised above-mentioned ONU terminal, this system also comprises: the optical fiber cable termination equipment OLT that is connected with said ONU terminal.
Preferably, this system also comprises: Industry Control serial port terminal equipment and monitoring host computer, and wherein, said Industry Control serial port terminal equipment is connected with said ONU terminal through serial ports, and said monitoring host computer is connected with said OLT.
Through the present invention, adopted the optical network node terminal, this terminal comprises: one or more serial ports; The passive optical network PON module; Serial port module is connected with one or more serial ports with the PON module, is used between PON module and one or more serial ports, transmitting data.Solved the existing problem of traditional serial communication, realized that the optical communication of serial ports is carried.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the ONU terminal structure block diagram according to the embodiment of the invention;
Fig. 2 is an ONU terminal structure block diagram according to the preferred embodiment of the invention;
Fig. 3 is the PON system architecture diagram according to the embodiment of the invention;
Fig. 4 is a PON system architecture diagram according to the preferred embodiment of the invention;
Fig. 5 is an ONU terminal module structured flowchart according to the preferred embodiment of the invention;
Fig. 6 is the software test flow chart according to the embodiment of the invention.
Embodiment
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Fig. 1 is according to embodiment of the invention ONU terminal structure block diagram.ONU terminal as shown in Figure 1 comprises: one or more serial ports 10; PON module 14; Serial port module 12 is connected with one or more serial ports 10 with this PON module 14, is used between this PON module 14 and one or more serial ports 10, transmitting data.
Through above-mentioned terminal, realized that the serial ports passive optical network equipment connects, realized that the optical communication of serial ports is carried.Passive optical network equipment is introduced into these advantages through above-mentioned terminal because of it has advantages such as transmission range is far away, optical communication is not subject to disturb, bandwidth is big, has certain advantage than traditional serial communication.
Preferably, when implementing, the PON module can be connected through local bus Localbus with serial port module.Need to prove that the PON module also can be connected through other modes with serial port module, the not solution of influence technique problem of selection of concrete connected mode.
Fig. 2 is an ONU terminal structure block diagram according to the preferred embodiment of the invention, and as shown in Figure 2, in the above-mentioned ONU terminal, serial port module 12 comprises: serial ports transceiver 20, UART extended chip 22 and switch 24.Wherein, serial ports transceiver 20 can be one or more types, corresponding to the type of serial ports.The effect of serial ports transceiver 20 is to be used to connect the serial ports 10 corresponding with serial ports transceiver 20 types.Need to prove that the serial ports type here can be a serial ports commonly used in the industrial control field, RS232 for example, RS485, RS422 etc.UART extended chip 22 links to each other with PON module 14 with serial ports transceiver 20, is used between serial ports transceiver 20 and PON module 14, transmitting data.Preferably, can also comprise: switch 24, be connected with serial ports transceiver 20 with UART extended chip 22, be used to select serial ports.Need to prove that the switch here can be an electronic switch, can be used to carry out multichannel and select.
Through the technical scheme of present embodiment, can realize the conversion of serial data to the PON signal, serial ports definition and the serial ports that carries out under the PON system are visited, and simultaneously, the serial ports value volume and range of product of PON terminal equipment can be expanded as required.
Fig. 3 is the PON system architecture diagram according to the embodiment of the invention, and PON system as shown in Figure 3 comprises above-mentioned ONU terminal, also comprises: the optical fiber cable termination equipment OLT that is connected with this ONU terminal.
Preferably, this system also comprises: Industry Control serial port terminal equipment and monitoring host computer, and wherein, Industry Control serial port terminal equipment is connected with the ONU terminal through serial ports, and monitoring host computer is connected with OLT.
Through the technical scheme of present embodiment, solved the problem of serial ports visit under the PON system, realized that the optical communication of serial ports is carried.
Describe below in conjunction with preferred embodiment.
Fig. 4 is a PON system architecture diagram according to the preferred embodiment of the invention; As shown in Figure 4; This PON system comprises: terminal OLT device, Optical Distribution Network and terminal ONU equipment; This preferred embodiment is on ONU, to increase serial ports, realizes rs 232 serial interface signal and light signal conversion through ONU, and host access and management serial ports are then directly managed on the ONU through the Ethernet mode.
Through this PON system; Utilize interference-free light signal to carry the serial ports signal of telecommunication; The characteristics of performance PON equipment big capacity bandwidth and than the characteristics of the defeated distance of teletransmission; Creative proposition combines the PON terminal equipment of serial communication, satisfies the communication needs of industrial control field, can realize optical communication between industry control serial port terminal equipment and the main frame through this equipment.
Fig. 5 is an ONU terminal module structured flowchart according to the preferred embodiment of the invention, and as shown in Figure 5, this PON terminal (also can be called the ONU terminal) comprises following module:
Common ONU PON module (can built-in with CPU), last behavior PON light signal externally provides the Iocalbus EBI;
Serial ports daughter card module, upstream Interface are the Iocalbus bus, following behavior rs 232 serial interface signal; This subcard is realized the expansion of Iocalbus to UART, and the UART number of chips can freely be expanded, and disposes a plurality of serial ports transceivers of polymorphic type simultaneously as required; Transceiver can have three kinds of RS232/RS485/RS422; Can select the work of different transceivers as required, serial ports quantity is different on the different subcards, can select different serial ports subcards to realize freely expanding of serial ports like this.Wherein the PON module is a core, and the serial ports expansion interface is provided, the output of serial data management and encapsulation and up PON signal.
As shown in Figure 5, the PON module section partly is connected through the Iocalbus bus with serial port module, and wherein, the PON module can comprise: power transfer module, optical module, PON MAC acp chip, the peripheral circuit of PON MAC, crystal oscillator, DDR, FLASH.Serial ports daughter card module part is made up of UART extended chip and serial ports transceiver, can customize the UART extended chip of some and dissimilar serial ports transceivers according to demand.Preferably, can also between UART extended chip and different serial ports transceiver, can increase electronic switch, be used to control the serial ports type of same output.
Common ONU PON module mainly comprises optical module, PON MAC chip and DDR internal memory and FLASH, power supply etc., and provides the Iocalbus interface to supply the serial ports subcard to use.The serial ports daughter card module comprises UART extended chip, serial ports transceiver and transceiver and selects circuit.This module transfers serial data to CPU that the Iocalbus signal is sent into the PON module.The subcard type can customize by demand.The serial ports expansion chip is realized the conversion of Iocalbus to UART, and different serial ports use different transceiver and serial ports expansion chips to set up the UART passage.
Preferably, the foregoing description can be used for connecting the industry control terminal of a plurality of serial ports outputs, and the serial ports type can be a kind of among the RS232/RS485/RS422.Can be according to the different serial ports subcard of The field serial ports situation configuration.
A kind of method for testing software also is provided in the present embodiment, and Fig. 6 is the software test flow chart according to the embodiment of the invention, and is as shown in Figure 6, and this flow process comprises the steps:
Step S601, ONU starts initialization, and ONU starts the CPU work system;
Step S602, ONU detects the serial ports subcard type of oneself, creates a plurality of socket serve ports;
Step S603, OLT in the ONU registration, the PON light path is normal;
Step S604, between main frame and the ONU network communication normal, virtual serial port is installed is driven and hypervisor, the serial ports type of definition ONU, IP address and the port numbers of configuration virtual serial ports and ONU are related;
Step S605, the serial ports test program of use hyper terminal and so on is opened firm configured virtual string slogan, and main frame carries out the read and write serial port operation.
Through above-mentioned preferred embodiment, solved serial ports and how to be connected with passive optical network equipment, how serial data is converted into the problem how the PON signal carries out serial ports visit under serial ports definition and the PON system, realized that the optical communication of serial ports is carried.
Obviously; It is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize that they can concentrate on the single calculation element with the general calculation device; Perhaps be distributed on the network that a plurality of calculation element forms; Alternatively, they can be realized with the executable program code of calculation element, carried out by calculation element thereby can they be stored in the storage device; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (7)

1. an optical network node ONU terminal is characterized in that, comprising:
One or more serial ports;
The passive optical network PON module;
Serial port module is connected with said one or more serial ports with said PON module, is used between said PON module and said one or more serial ports, transmitting data.
2. ONU according to claim 1 terminal is characterized in that, said serial port module comprises:
The serial ports transceiver of one or more types, wherein, said serial ports transceiver is used to connect and the corresponding serial ports of said serial ports transceiver type.
3. ONU according to claim 2 terminal is characterized in that, said serial port module also comprises:
Universal asynchronous reception/dispensing device UART extended chip links to each other with said PON module with said serial ports transceiver, is used between said serial ports transceiver and said PON module, transmitting data.
4. ONU according to claim 3 terminal is characterized in that, said serial port module also comprises:
Switch is connected with said serial ports transceiver with said UART extended chip, is used to select serial ports.
5. ONU according to claim 1 terminal is characterized in that, said PON module is connected through local bus Localbus with said serial port module.
6. a passive optical network PON system is characterized in that, comprises each described ONU terminal in the claim 1 to 5, also comprises: the optical fiber cable termination equipment OLT that is connected with said ONU terminal.
7. PON according to claim 6 system is characterized in that, also comprises:
Industry Control serial port terminal equipment and monitoring host computer, wherein, said Industry Control serial port terminal equipment is connected with said ONU terminal through serial ports, and said monitoring host computer is connected with said OLT.
CN2010105672859A 2010-11-30 2010-11-30 Optical-fiber network node terminal and passive optical-fiber network (PON) system Pending CN102480654A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2010105672859A CN102480654A (en) 2010-11-30 2010-11-30 Optical-fiber network node terminal and passive optical-fiber network (PON) system
PCT/CN2011/074914 WO2012071870A1 (en) 2010-11-30 2011-05-30 Optical network unit terminal and passive optical network system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010105672859A CN102480654A (en) 2010-11-30 2010-11-30 Optical-fiber network node terminal and passive optical-fiber network (PON) system

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CN102480654A true CN102480654A (en) 2012-05-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105208466A (en) * 2014-06-04 2015-12-30 上海斐讯数据通信技术有限公司 Cabinet type multiport EPON system
CN105577415A (en) * 2014-10-17 2016-05-11 中兴通讯股份有限公司 Intelligent optical distribution network (ODN) device

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JP2002290425A (en) * 2001-03-26 2002-10-04 Matsushita Electric Ind Co Ltd Optical network unit
CN201150062Y (en) * 2007-12-12 2008-11-12 深圳市讯达康通讯设备有限公司 Ethernet passive optical network transmission equipment OLT and ONU
CN201226577Y (en) * 2008-06-06 2009-04-22 湖南银城科技有限公司 Integration structure communication equipment
CN101651836A (en) * 2009-09-18 2010-02-17 武汉长光科技有限公司 Modularized monitoring terminal equipment based on EPON
CN201536408U (en) * 2009-11-09 2010-07-28 太原科技大学 Ethernet passive optical network data transmission gateway
CN201584054U (en) * 2009-12-30 2010-09-15 国网信息通信有限公司 Power consumption information acquisition substation, terminal and system

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CN1976354A (en) * 2006-11-28 2007-06-06 上海电器科学研究所（集团）有限公司 Universal industrial protocol Ethernet adapter and software thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002290425A (en) * 2001-03-26 2002-10-04 Matsushita Electric Ind Co Ltd Optical network unit
CN201150062Y (en) * 2007-12-12 2008-11-12 深圳市讯达康通讯设备有限公司 Ethernet passive optical network transmission equipment OLT and ONU
CN201226577Y (en) * 2008-06-06 2009-04-22 湖南银城科技有限公司 Integration structure communication equipment
CN101651836A (en) * 2009-09-18 2010-02-17 武汉长光科技有限公司 Modularized monitoring terminal equipment based on EPON
CN201536408U (en) * 2009-11-09 2010-07-28 太原科技大学 Ethernet passive optical network data transmission gateway
CN201584054U (en) * 2009-12-30 2010-09-15 国网信息通信有限公司 Power consumption information acquisition substation, terminal and system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105208466A (en) * 2014-06-04 2015-12-30 上海斐讯数据通信技术有限公司 Cabinet type multiport EPON system
CN105208466B (en) * 2014-06-04 2019-07-05 上海斐讯数据通信技术有限公司 Cabinet-type multiport EPON system
CN105577415A (en) * 2014-10-17 2016-05-11 中兴通讯股份有限公司 Intelligent optical distribution network (ODN) device

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Application publication date: 20120530