CN103532631A - Pluggable GPON ONU (Gigabit Passive Optical Network Optical Network Unit) for local area network switch system - Google Patents
Pluggable GPON ONU (Gigabit Passive Optical Network Optical Network Unit) for local area network switch system Download PDFInfo
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- 238000012545 processing Methods 0.000 claims abstract description 26
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- 238000004891 communication Methods 0.000 claims description 6
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- 238000007639 printing Methods 0.000 claims description 2
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Abstract
The invention provides a local area network switch system and a pluggable gigabit passive optical network optical network unit GPON ONU for the local area network switch system. The pluggable GPON ONU comprises a bidirectional optical transceiver, an ONU chip, a WAN (Wide Area Network) interface processing module, a power processing module, a management interface module and a WAN interface connector. The pluggable GPON ONU can be directly inserted into a WAN interface of a router, so that a network cable is saved, and the router can provide uplink and downlink of the GPON; meanwhile, the pluggable GPON ONU and the router share a power supply, so that the size and the power consumption are relatively small, and convenience and energy conservation are realized.
Description
Technical field
The invention belongs to optical communication technique field, relate to a kind of design based on gigabit passive optical network switching system, particularly relate to a kind of plugged gigabit passive optical network optical network unit GPON ONU for LAN switching system.
Background technology
The bandwidth growing along with user needs, Virtual network operator has been laid a large amount of optical fiber and optical transmission device, and by the application of dense wavelength division (DWDM) technology, make the bandwidth of backbone network have breakthrough development, its leading local area network (LAN) bandwidth is gradually to 10G, the 40G future development of 100G even.Yet connecting this section of backbone network and local area network (LAN) and home network, i.e. " first mile ", the increase of its bandwidth capacity cannot be caught up with the increase of backbone network bandwidth capacity far away, exists great bottleneck.
In various competition technology, gigabit passive optical network GPON, as a kind of point-to-multipoint network, saves the resource of central office side CO with a kind of sector structure, and service a large number of users has been saved customer investment by sharing the mode of local side apparatus and optical fiber.Simultaneously because this technology has been eliminated the active equipment between local side and user side, make to safeguard simple, cost is low, reliability is high, GPON developed into for the main flow of Access Network, most widely used technology through the several years.Its transfer of data is to carry out between gigabit passive optical network optical line terminal GPON OLT and gigabit passive optical network optical network unit GPON ONU.GPON OLT is conventionally positioned over the CO of central office and for connecting Access Network and metropolitan area main line, is the external network that belongs to internet service provider ISP.And GPON ONU is according to application scenarios Fiber To The Curb FTTC(fiber to the curb) Fiber-To-The-Building FTTB(fiber to the building), fiber-to-the-subscriber FTTH(fiber to the home) difference, be positioned over roadside, building, user's family.
In recent years, along with Fiber to the home FTTH(fiber to the home) the wideling popularize of application, increasing GPON ONU appears in subscriber household, and the network services such as broadband voice, data, video are provided for user.Simultaneously in order to solve the problem of user's " many people use network and mobile interconnected " simultaneously, use GPON ONU and groups of routers to build this mode of LAN more and more general.In current networking configuration, referring to Fig. 1, between ISP network and user, carry out the transmission of data message and need to pass through the structures such as local side OLT, passive optical splitters, conventional GPON ONU, router, by router, provide local area network (LAN) for terminal use again, between local side OLT and passive optical splitters and between passive optical splitters and GPON ONU, with optical fiber, connect, GPON ONU is connected with router by netting twine.3 drawbacks are disposed in this networking:
(1), conventional GPON ONU and router separate power supply separately, need to configure 2 power supplys, not energy-conservation.
(2), conventional GPON ONU is connected by netting twine with router, needs extra netting twine.
(3), conventional GPON ONU generally possesses 4 Ethernet interfaces, but this kind of application scenario only needs an Ethernet interface, therefore conventional GPON ONU have that large the occupations of land side of volume, hardware resource are wasted seriously, power consumption, shortcoming that cost is high.
Therefore need a kind of plugged GPON ONU of convenient and energy-saving, by system configuration, reach network service object and solve above drawback.
Summary of the invention
Object of the present invention provides a kind of and plugs gigabit passive optical network optical network unit GPON ONU and utilize this can plug GPON ONU and groups of routers is built the configuration-system of LAN, on the basis that guarantees network reliability, reach system bulk is dwindled, hardware connects and safeguards simply, reduces the effect of energy consumption and cost.
In order to realize object of the present invention, adopted following technical scheme:
A LAN switching system for gigabit passive optical network, comprises the plugged GPON ONU for LAN switching system, also comprises: local side OLT, router, passive optical splitters.The Network that ISP (ISP) provides is broadcasted and is issued to passive optical splitters by local side OLT, passive optical splitters with can plug GPON ONU and be connected by optical fiber, GPON ONU is by being connected with router by connecting-disconnecting interface simultaneously, and router offers end user computer by local area network (LAN) by business datum.
A plugged GPON ONU for LAN switching system, is characterized in that, comprises
Bidirectional optical transceiver, receives the light signal that optical line terminal is launched, and the light signal of reception is converted into the signal of telecommunication, and this signal of telecommunication is sent to ONU chip receiving terminal; Receive the signal of telecommunication that ONU chip transmitting terminal sends, the signal of telecommunication of reception is converted into light signal, and this light signal is sent to optical line terminal.
ONU chip, receives the signal of telecommunication from bidirectional optical transceiver, after it is processed, data message is sent to WAN mouth processing module; Receive the data message that WAN mouth processing module sends, be treated to the signal of telecommunication, and be sent to bidirectional optical transceiver.
WAN mouth processing module, receives the data message that ONU chip sends, and sends to the router of local side after processing; Receive the data message that local side router sends, after this information is processed, send to ONU chip.
Power supply processing module, is used the router power device of configuration with oneself, by being divided into two-way power supply ，Yi road after processing, exporting to router ，Yi road and to plugging GPON ONU, powers after transforming.
Management interface module, for external control devices provides the management of ONU chip, control interface.
WAN opening connector, can connecting-disconnecting interface for plugging that GPON ONU provides.
Above-mentioned bidirectional optical transceiver can be to be directly integrated on printing board PCB, also can adopt for him and can not plug optical transceiver such as plugging maybe of shell packing forms such as possessing standard SFF, GBIC, SFP, SFP+, XFP.
Above-mentioned management interface communication bus form is I2C bus, asynchronous serial port bus, usb bus or RJ45 network interface bus, and correspondingly its communication protocol is I2C agreement, RS232 agreement, usb protocol or ICP/IP protocol.
Above-mentioned WAN mouth processing module can be the circuit module that application-specific integrated circuit (ASIC) (ASIC) or field programmable logic device (FPGA) build, and its port type is RJ45 port, AUI port, high-speed synchronous serial ports port (SERIAL), asynchronous serial port (ASYNC) or integrated service digital network primary rate interface (ISDN PRI).Above-mentioned WAN opening connector is fixed WAN opening connector and the free-standing WAN opening connector of the forms such as RJ45 network interface connector, AUI opening connector, high-speed synchronous serial port connector, asynchronous serial port connector or integrated service digital network primary rate port connector.
Beneficial effect of the present invention is conventional GPON ONU by improving structure, make and can after plug form, remove unnecessary interface, dwindled volume, can plug form, be connected with router, without extra netting twine and the power supply of using, when guaranteeing original communication reliability, greatly simplified hardware facility, easy to use, safeguard simply, and reduced energy consumption and cost.
Accompanying drawing explanation
Fig. 1 is that conventional local area cross winding changes system configuration schematic diagram.
Fig. 2 is LAN switching system configuration schematic diagram of the present invention.
Fig. 3 is that the present invention is for the plugged GPON ONU specific embodiment structure chart of LAN switching system.
Embodiment
Below in conjunction with accompanying drawing and by specific embodiment mode, further illustrate technical scheme of the present invention.
Fig. 1 has provided existing conventional local area cross winding and has changed system installing structure schematic diagram.Down direction refers to the direction from internet service provider ISP network downloading service data to subscriber terminal equipment herein; Up direction refers to from subscriber terminal equipment and uploads business datum to the direction of ISP network.The Network providing at down direction internet service provider ISP is broadcasted and is issued to 1:n passive optical splitters and is then issued to conventional GPON ONU by local side OLT, GPON ONU is forwarded to router by the Network receiving by plugging WAN mouth, and router offers terminal use by local area network (LAN) again.At up direction subscriber terminal equipment, by local area network (LAN), business datum is sent to router, router is sent to GPON ONU by business datum by WAN mouth again, GPON ONU is sent to local side OLT by passive optical splitters after business datum being sent to passive optical splitters by optical fiber, is finally sent to ISP network.GPON ONU and router in this kind of configuration, need separately power supply separately, therefore need to configure two power supplys, power supply 1 and power supply 2, GPON ONU need to be connected to by netting twine the WAN mouth of router simultaneously, therefore additionally need a netting twine, in addition, current conventional GPON ONU generally has 4 Ethernet interfaces, but in actual disposition, only needs an Ethernet interface, serious and the power supply power consumption of hardware resource waste and volume are all relatively large, not energy-conserving and environment-protective and occupation of land side.
In order to address these problems, the invention provides the plugged GPON ONU that is specifically designed to LAN switching system.Fig. 2 is a kind of Typical Disposition mode of having used LAN switching system of the present invention.Similarly, can plug GPON ONU and be placed in LAN, be connected to 1:n passive optical splitters be then connected on local side OLT by optical fiber, it is directly inserted on the WAN mouth of router by plugging WAN mouth simultaneously.The Network providing at down direction internet service provider ISP is broadcasted and is issued to 1:n passive optical splitters and is then issued to and can plugs GPON ONU by local side OLT, can plug GPON ONU the Network receiving is forwarded to router by plugging WAN mouth, router offers user terminal by local area network (LAN) again.Contrary in up direction data information transfer direction.Under this kind of network configuration mode, not only saved the netting twine between GPON ONU and router, and can plug the power supply 1 that GPON ONU can directly be used router, by its inner power supply processing module, to self, powered, need not power separately again.In addition owing to can plugging GPON ONU, only provide one to dock with the WAN mouth of router, so hardware designs is simple, power consumption is little, and cost is low.
Fig. 3 is for the plugged GPON ONU structure chart of LAN switching system in a kind of embodiment of the present invention.Can plug GPON ONU and comprise that the optical fiber connector are as optical fiber interface, for connecting optical fiber and the bidirectional optical transceiver of PON side.Bidirectional optical transceiver sends to ONU chip for receiving from the light signal of the OLT of PON side and after being translated into the signal of telecommunication by sending link, is received from the signal of telecommunication of ONU chip and after being converted into light signal and is transmitted to PON side apparatus simultaneously by receiver.In the present embodiment, bidirectional optical transceiver adopts BOB(BOSA On Board) form, this kind of mode can effectively reduce costs.In other modification of present embodiment, bidirectional optical transceiver also can adopt other to possess the form of shell encapsulation.
Can plug GPON ONU and also comprise ONU chip, it act as and receives the data message of the signal of telecommunication representative sending from bidirectional optical transceiver and send to WAN mouth processing module by sending link, sends to bidirectional optical transceiver after receiving the processing data information from the signal of telecommunication representative of WAN mouth processing module transmission by receiver simultaneously.
Can plug GPON ONU and also comprise WAN mouth processing module, its effect is to receive from send to the router of local side after the processing data information of ONU chip transmission by WAN opening connector; After the processing data information that simultaneously its receiving router sends by WAN opening connector and be transmitted to ONU chip.In the present embodiment, adopt PHY chip and transformer as a kind of specific implementation of aforementioned WAN mouth processing module, in the modification of execution mode, also can adopt other implementation.
Can plug GPON ONU and also comprise WAN opening connector, its effect is to provide data-interface for WAN mouth processing module and local side router, and provide can connecting-disconnecting interface simultaneously, makes to plug the WAN mouth that GPON ONU can directly insert local side router.In the present embodiment, adopt RJ45 connector as a kind of specific implementation of aforementioned WAN opening connector, in other modification of execution mode, also can adopt other implementation.In addition, RJ45 connector adopts the form of fixed connector in the present embodiment, in other modification of present embodiment, also can adopt the connector form of free-standing, for example can Pop-up, and slideable connector form.
Can plug GPON ONU and also comprise administration module interface, its effect is can plug GPON ONU for external control devices management, configuration.In the present embodiment, adopt asynchronous serial port UART as a kind of specific implementation of aforementioned management interface module, in other modification of execution mode, also can adopt other implementation, for example I2C, USB, RJ45.
Can plug GPON ONU and comprise power supply processing module aspect power supply, directly use the power supply of router to input to and can plug GPON ONU self power supply, and power supply is separated to a road to router, power, make to plug GPON ONU without independent power supply.
The above, be only a kind of embodiment of the present invention, but above-mentioned disclosing is not intended to exhaustive or the present invention is limited to disclosed form.Any people who is familiar with this technology is in the disclosed technical scope of the present invention, and the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.
Claims (10)
1. for plugged a GPON ONU for LAN switching system, it is characterized in that, comprise
Bidirectional optical transceiver, receives the light signal that optical line terminal is launched, and the light signal of reception is converted into the signal of telecommunication, and this signal of telecommunication is sent to ONU chip receiving terminal; Receive the signal of telecommunication that ONU chip transmitting terminal sends, the signal of telecommunication of reception is converted into light signal, and this light signal is sent to optical line terminal;
ONU chip, receives the signal of telecommunication from bidirectional optical transceiver, after it is processed, data message is sent to WAN mouth processing module; Receive the data message that WAN mouth processing module sends, be treated to the signal of telecommunication, and be sent to bidirectional optical transceiver;
WAN mouth processing module, receives the data message that ONU chip sends, and sends to the router of local side after processing; Receive the data message that local side router sends, after this information is processed, send to ONU chip;
Power supply processing module, is used the router power device of configuration with oneself, by being divided into two-way power supply ，Yi road after processing, exporting to router ，Yi road and to plugging GPON ONU, powers after transforming;
Management interface module, for external control devices provides the management of ONU chip, control interface;
WAN opening connector, can connecting-disconnecting interface for plugging that GPON ONU provides.
2. the plugged GPON ONU for LAN switching system according to claim 1, is characterized in that, described bidirectional optical transceiver is to be directly integrated on printing board PCB.
3. the plugged GPON ONU for LAN switching system according to claim 1, is characterized in that, described bidirectional optical transceiver be possess standard SFF package casing can not plug optical transceiver.
4. the plugged GPON ONU for LAN switching system according to claim 1, is characterized in that, described bidirectional optical transceiver is the pluggable optical transceiver device that possesses standard GBIC, SFP, SFP+, XFP package casing.
5. according to arbitrary described the plugged GPON ONU for LAN switching system of claim 1-4, it is characterized in that, described WAN mouth processing module is the circuit module that application-specific integrated circuit (ASIC) (ASIC) or field programmable logic device (FPGA) build, and its port type is RJ45 port, AUI port, high-speed synchronous serial ports port (SERIAL), asynchronous serial port (ASYNC) or integrated service digital network primary rate interface (ISDN PRI).
6. the ONU of the plugged GPON for LAN according to claim 5, it is characterized in that, described management interface module communication bus form is I2C bus, asynchronous serial port bus, usb bus or RJ45 network interface bus, and correspondingly its communication protocol is I2C agreement, RS232 agreement, usb protocol or ICP/IP protocol.
7. the ONU of the plugged GPON for LAN according to claim 6, is characterized in that, described WAN opening connector is fixed WAN opening connector.
8. the ONU of the plugged GPON for LAN according to claim 6, is characterized in that, described WAN opening connector is free-standing WAN opening connector.
9. according to the ONU of the plugged GPON for LAN described in claim 7 or 8, it is characterized in that, described WAN opening connector is RJ45 network interface connector, AUI opening connector, high-speed synchronous serial port connector, asynchronous serial port connector or integrated service digital network primary rate port connector.
10. a LAN switching system, is characterized in that, comprises described in claim 1 and can plug GPON ONU, also comprises:
Local side OLT;
Router;
Passive optical splitters;
The Network that ISP provides is broadcasted and is issued to passive optical splitters by local side OLT, passive optical splitters with can plug GPON ONU and be connected by optical fiber, GPON ONU is by being connected with router by connecting-disconnecting interface simultaneously, and router offers terminal use by local area network (LAN) by business datum.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015188563A1 (en) * | 2014-06-09 | 2015-12-17 | 中兴通讯股份有限公司 | Service configuration data processing method and apparatus |
| CN104734780B (en) * | 2014-12-29 | 2017-07-21 | 东莞市启鼎光电科技有限公司 | A kind of fiber buss CMTSs of passive light splitting RS 485 |
| CN104753596B (en) * | 2014-12-29 | 2017-09-01 | 东莞市启鼎光电科技有限公司 | A kind of passive many mouthfuls of terminals of the fiber buss of light splitting RS 485 |
| CN115242573A (en) * | 2022-05-24 | 2022-10-25 | 深圳市兰江荣恒科技有限公司 | Knx intelligent household data conversion system based on passive optical fiber pon network |
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| US20100129035A1 (en) * | 2008-11-13 | 2010-05-27 | Finisar Corporation | Optical network unit transceiver |
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2013
- 2013-10-11 CN CN201310470922.4A patent/CN103532631A/en active Pending
Patent Citations (2)
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| CN101395832A (en) * | 2005-12-30 | 2009-03-25 | 泰克诺沃斯公司 | Small form factor, pluggable ONU |
| US20100129035A1 (en) * | 2008-11-13 | 2010-05-27 | Finisar Corporation | Optical network unit transceiver |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015188563A1 (en) * | 2014-06-09 | 2015-12-17 | 中兴通讯股份有限公司 | Service configuration data processing method and apparatus |
| CN105307058A (en) * | 2014-06-09 | 2016-02-03 | 中兴通讯股份有限公司 | Service configuration data processing method and device |
| CN105307058B (en) * | 2014-06-09 | 2019-06-18 | 中兴通讯股份有限公司 | Method and device for processing service configuration data |
| US10367693B2 (en) | 2014-06-09 | 2019-07-30 | Zte Corporation | Service configuration data processing method and apparatus |
| CN104734780B (en) * | 2014-12-29 | 2017-07-21 | 东莞市启鼎光电科技有限公司 | A kind of fiber buss CMTSs of passive light splitting RS 485 |
| CN104753596B (en) * | 2014-12-29 | 2017-09-01 | 东莞市启鼎光电科技有限公司 | A kind of passive many mouthfuls of terminals of the fiber buss of light splitting RS 485 |
| CN115242573A (en) * | 2022-05-24 | 2022-10-25 | 深圳市兰江荣恒科技有限公司 | Knx intelligent household data conversion system based on passive optical fiber pon network |
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