CN102916746B - EPON and optical module for optical network unit thereof - Google Patents
EPON and optical module for optical network unit thereof Download PDFInfo
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- CN102916746B CN102916746B CN201210381150.2A CN201210381150A CN102916746B CN 102916746 B CN102916746 B CN 102916746B CN 201210381150 A CN201210381150 A CN 201210381150A CN 102916746 B CN102916746 B CN 102916746B
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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
- H04B10/40—Transceivers
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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
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
- H04B10/25891—Transmission components
Abstract
The invention discloses a kind of EPON and optical module for optical network unit thereof, described optical module comprises: laser pick-off unit, for the downlink optical signal sent according to OLT, exports the corresponding signal of telecommunication; MAC protocol processing unit, exports for the data obtained after carrying out MAC protocol process to the signal of telecommunication received from described laser pick-off unit; PHY unit, for being sent the data encapsulation received from described MAC protocol processing unit to ustomer premises access equipment by network cable after Frame.Owing to being integrated with MAC protocol processing unit and PHY unit in optical module for optical network unit, the MAC protocol conversion of Ethernet and the data-transformation facility of local area network (LAN) can be realized, thus optical module for optical network unit can directly be connected with ustomer premises access equipment, in network, need not optical network unit system equipment be set again, thus greatly reduces the cost of optical-fiber network.
Description
Technical field
The present invention relates to Fibre Optical Communication Technology, particularly relate to a kind of EPON and optical module for optical network unit thereof.
Background technology
Current domestic market and international market, the optical fiber communication direction of merging with multiple business with a large bandwidth and at a high rate has started application; In numerous solutions, the appearance of fiber to the home (FTTH) is just considered to the ultimate solution of broadband access.
But domesticly at present laid FTTB(Fiber-To-The-Building in a large number) or FTTC(Fiber To The Curb) network, FTTB/FTTC is the network of a kind of optical cable/copper cable hybrid system, as shown in Figure 1, from the OLT(OpticalLineTerminator of central office, optical line terminal) roadside within leave home front yard or 1,000 feet, office or the Signal transmissions between limit, building adopt optical cable; By switch (Switch) and coaxial cable again signal from roadside or limit, building transmit get home or ustomer premises access equipment in office, as the LAN switch etc. in computer, intelligent television or family.
In the process by FTTB/FTTC network upgrade being FTTH network, because ustomer premises access equipment directly can not process light signal usually, therefore, the FTTH network of upgrading usually, as shown in Figure 2.The OLT of central office is by ODN(light feeder network) and POS(PassiveOpticalSplitter, passive optical splitters) be connected, POS is usually referred to as Splitter(optical splitter), 2N is generally had to divide equally port, if the light intensity of its uplink port input is 1, then the light intensity that its each downlink port exports is 1/N.For a FTTH network, be generally that 1 OLT is placed on telecommunication center office, then by optical splitter, be at least generally 1 point 32, or 1 point 64 even 1 point 128, namely 1 OLT is with 32 or 64 or 128 ONU optical modules.Each ONU optical module is connected with an ONU system equipment, ONU system equipment is connected with the ustomer premises access equipment in family or in office, in order to receive the signal of telecommunication that ustomer premises access equipment sends, be sent to OLT in the upstream direction after being converted to light signal by ONU optical module, and the light signal that ONU optical module receives is converted to the receivable signal of telecommunication of ustomer premises access equipment and sends to ustomer premises access equipment.
But the present inventor finds, the FTTH network of prior art is owing to needing at local side for each ONU optical module is equipped with an ONU system equipment, and the cost dropped in network upgrade process is higher, and ONU system equipment needs to take larger space outerpace.
Summary of the invention
The embodiment provides a kind of EPON and optical module for optical network unit thereof, in order to reduce FTTH network cost, save network and take up room.
According to an aspect of the present invention, provide a kind of optical module for optical network unit, comprising:
Laser pick-off unit, the downlink optical signal that the optical line terminal OLT for receiving in EPON sends, and export the corresponding signal of telecommunication according to the downlink optical signal received;
Media interviews control MAC protocol processing unit, and for receiving the signal of telecommunication that described laser pick-off unit exports, the data obtained after carrying out MAC protocol process to the signal of telecommunication received from described laser pick-off unit export;
The data encapsulation received from described MAC protocol processing unit for receiving the data that described MAC protocol processing unit exports, and is sent to ustomer premises access equipment by network cable after Frame by physical layer PHY unit.
Further, described optical module also comprises: laser emission element;
Described PHY unit also for receive described ustomer premises access equipment send Frame after, this Frame is resolved, the data parsed from this Frame is sent to described MAC protocol processing unit;
The signal of telecommunication obtained after the data of described MAC protocol processing unit also for described PHY unit being sent carry out MAC protocol process outputs to described laser emission element;
The signal of telecommunication that described laser emission element exports for receiving described MAC protocol processing unit, the signal of telecommunication according to receiving sends corresponding uplink optical signal to described OLT.
Wherein, described laser emission element comprises: laser and drive circuit thereof; Wherein, after described drive circuit receives the signal of telecommunication of described MAC protocol processing unit output, the laser light emitting light source in described laser is driven to launch uplink optical signal according to the signal of telecommunication received; And
Described laser pick-off unit comprises: photodiode, trans-impedance amplifier TIA, amplitude limiting amplifier circuit.Described photodiode exports corresponding response current to described TIA after detecting described downlink optical signal, described TIA exports corresponding differential electric signal to described amplitude limiting amplifier circuit, the differential signal of reception is carried out limited range enlargement by amplitude limiting amplifier circuit, exports the corresponding signal of telecommunication to described MAC protocol processing unit.
Further, described optical module also comprises:
MCU unit, for communicating with described MAC protocol processing unit, realizes the software upgrading of described MAC protocol processing unit; And
Described MCU unit also for communicating with described PHY unit, in order to control the PHY chip in described PHY unit; And
Described MAC protocol processing unit, also for after carrying out MAC protocol process to the signal of telecommunication received from described laser pick-off unit, receives the signaling that described OLT sends, then the signaling that described OLT sends is outputted to described MCU unit if judge; Described MCU unit also for obtain described OLT send signaling after, carry out corresponding operating according to the instruction therefrom parsed.
Preferably, the model of the PHY chip adopted in described PHY unit is RTL8201BL or VT6103; And
The model of the protocol processes chip adopted in described MAC protocol processing unit is Atheros8829.
According to another aspect of the present invention, additionally provide a kind of EPON, comprise: passive optical splitters POS, the optical line terminal OLT be connected by optical fiber with the uplink port of described POS, and multiple optical network unit ONU optical module be connected by optical fiber with the downlink port of described POS respectively;
Wherein, described ONU optical module is used for being connected by network cable with the ustomer premises access equipment in local area network (LAN), after the downlink optical signal receiving described OLT transmission, downlink optical signal is converted to the data that the signal of telecommunication obtains after MAC protocol process, sends to described ustomer premises access equipment.
Wherein, described ONU optical module comprises:
Laser pick-off unit, the downlink optical signal that the optical line terminal OLT for receiving in EPON sends, and export the corresponding signal of telecommunication according to the downlink optical signal received;
Media interviews control MAC protocol processing unit, and for receiving the signal of telecommunication that described laser pick-off unit exports, the data obtained after carrying out MAC protocol process to the signal of telecommunication received from described laser pick-off unit export;
The data encapsulation received from described MAC protocol processing unit for receiving the data that described MAC protocol processing unit exports, and is sent to ustomer premises access equipment by network cable after Frame by physical layer PHY unit.
Further, described ONU optical module is also for receiving the data that described ustomer premises access equipment sends, and the data sent by described ustomer premises access equipment, after MAC protocol process, are converted to uplink optical signal and send to described OLT.
Further, described ONU optical module also comprises: laser emission element; And
Described PHY unit also for receive described ustomer premises access equipment send Frame after, this Frame is resolved, the data parsed from this Frame is sent to described MAC protocol processing unit;
The signal of telecommunication obtained after the data of described MAC protocol processing unit also for described PHY unit being sent carry out MAC protocol process outputs to described laser emission element;
The signal of telecommunication that described laser emission element exports for receiving described MAC protocol processing unit, the signal of telecommunication according to receiving sends corresponding uplink optical signal to described OLT.
Further, described ONU optical module also comprises:
MCU unit, for communicating with described MAC protocol processing unit, carries out software upgrading to described MAC protocol processing unit; And
Described MCU unit also for communicating with described PHY unit, in order to control the PHY chip in described PHY unit; And
Described MAC protocol processing unit, also for after carrying out MAC protocol process to the signal of telecommunication received from described laser pick-off unit, receives the signaling that described OLT sends, then the signaling that described OLT sends is outputted to described MCU unit if judge; Described MCU unit also for obtain described OLT send signaling after, carry out corresponding operating according to the instruction therefrom parsed.
In the optical module for optical network unit that the embodiment of the present invention provides, owing to being integrated with MAC protocol processing unit and PHY unit, the MAC protocol conversion of Ethernet and the data-transformation facility of local area network (LAN) can be realized, thus optical module for optical network unit can directly be connected with ustomer premises access equipment, in EPON, need not optical network unit system equipment be set again, thus greatly reduce the cost of optical-fiber network, also save space shared by optical-fiber network.
Accompanying drawing explanation
Fig. 1 is the FTTB/FTTC network diagram of prior art;
Fig. 2 is the FTTH network diagram of prior art;
Fig. 3 is the FTTH network diagram of the embodiment of the present invention;
Fig. 4 is the optical module for optical network unit internal circuit schematic diagram of the embodiment of the present invention;
Fig. 5 is the laser emission element internal circuit schematic diagram of the embodiment of the present invention;
Fig. 6 is the laser acquisition unit internal circuit schematic diagram of the embodiment of the present invention;
Fig. 7 is that the SFP of the optical module for optical network unit of the embodiment of the present invention encapsulates schematic diagram;
Fig. 8 is the external pin schematic diagram of the optical module for optical network unit of the embodiment of the present invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearly understand, enumerate preferred embodiment referring to accompanying drawing, the present invention is described in more detail.But it should be noted that, the many details listed in specification are only used to make reader to have a thorough understanding, even if do not have these specific details also can realize these aspects of the present invention to one or more aspect of the present invention.
The term such as " module " used in this application, " system " is intended to comprise the entity relevant to computer, such as but not limited to hardware, firmware, combination thereof, software or executory software.Such as, module can be, but be not limited in: the thread of the process that processor runs, processor, object, executable program, execution, program and/or computer.
In technical scheme of the present invention, the optical module for optical network unit of FTTH network, except realizing the function carrying out between light signal and the signal of telecommunication changing, also by adopting pmd layer and GEMAC (MediaAccessControl of integrated IEEE802.3ah agreement, media interviews control) chip of layer (with SERDES) realizes the function that Ethernet data exchanges, therefore, optical module for optical network unit can not be connected with ustomer premises access equipment by ONU system equipment, but be directly connected with ustomer premises access equipment by cable, save space and production cost that network takies.
The technical scheme of the embodiment of the present invention is described in detail below in conjunction with accompanying drawing.The EPON of the embodiment of the present invention, as shown in Figure 3, comprising: OLT301, POS302, multiple ONU optical module 303.
OLT301 is connected with the uplink port of POS302 by optical fiber, and each ONU optical module 303 is connected with each downlink port of POS302 respectively by optical fiber, thus each ONU optical module 303 realizes the communication with OLT301 by optical fiber and POS402.
The ONU optical module 303 of the embodiment of the present invention can be directly directly connected by cable with ustomer premises access equipment (as router, switch, computer, computer etc.).Namely ONU optical module 303 can be connected by network cable with the ustomer premises access equipment in local area network (LAN), to go forward side by side Serial Communication: receive the data that ustomer premises access equipment sends, the data sent by ustomer premises access equipment, after MAC protocol process, are converted to uplink optical signal and are sent to OLT301 by optical fiber; ONU optical module 303 also after the downlink optical signal receiving OLT301 transmission, downlink optical signal is converted to the signal of telecommunication, and the data obtained after MAC protocol process can send to ustomer premises access equipment by network cable.
The internal circuit of ONU optical module 303 as shown in Figure 4, comprise: laser emission element 401, laser pick-off unit 402, MAC protocol processing unit 403, MCU(MicroprogrammedControlUnit, microprogram control unit) unit 404, PHY(physical layer) unit 405.
Generally include laser emission element in ONU optical module, in order to launch uplink optical signal according to the signal of telecommunication received, uplink optical signal is transferred to OLT301 after optical fiber, POS402;
Also comprise laser pick-off unit in ONU optical module, in order to receive the downlink optical signal that OLT sends, the downlink optical signal according to receiving exports the corresponding signal of telecommunication.The downlink optical signal that OLT301 sends is transferred to ONU optical module 303 after optical fiber, POS402.
Laser pick-off unit 402 in ONU optical module 303 as shown in Figure 5, comprising: optical fiber receive module and amplitude limiting amplifier circuit; Optical fiber receive module generally includes: photodiode, trans-impedance amplifier TIA.Photodiode exports corresponding response current and then exports corresponding differential electric signal to TIA, TIA after the downlink optical signal detecting OLT301 transmission; This differential signal is sent to amplitude limiting amplifier circuit, and this differential signal is carried out limited range enlargement by amplitude limiting amplifier circuit, exports the corresponding signal of telecommunication to MAC protocol processing unit 403.
MAC protocol processing unit 403 is connected with laser pick-off unit 402, in order to the signal of telecommunication (downstream signal) that the amplitude limiting amplifier circuit receiving laser pick-off unit 402 exports, the data obtained after carrying out MAC protocol process to the signal of telecommunication received from laser pick-off unit 402, output to PHY unit 405.Particularly, the protocol processes chip of MAC protocol processing unit 403 is after the signal of telecommunication receiving the output of laser pick-off unit 402, GigabitSerDes built-in in chip changes the serial data of reception into parallel data, and parallel data is converted to after MAC protocol process serial data again and outputs to PHY unit 405 and send.The MAC protocol process of protocol processes chip to downstream signal specifically can comprise: FEC(forward error correction), 802.3ah protocol processes, 802.1D protocol processes, 802.1ad protocol processes, 802.1Q protocol processes, GEMAC's (gigabit Ethernet medium access control), GESERDES(gigabit serioparallel exchange) process.Protocol processes chip in MAC protocol processing unit 403 specifically can adopt Atheros8829 chip.
No matter be in traditional cable LAN (LAN) or in wireless lan (wlan) popular at present, MAC protocol is all widely used.In a local network, the physical layer of various transmission medium corresponds to corresponding MAC layer, the MAC layer standard of what the network that generally uses at present adopted is IEEE802.3.
The uplink port of PHY unit 405 is connected with MAC protocol processing unit 403, for receiving the data that MAC protocol processing unit 403 exports.The downlink port of PHY unit 405 is connected with ustomer premises access equipment by cable (or claiming network cable), receives data that ustomer premises access equipment sends or to family end equipment sending data.
PHY refers to physical layer, refers generally to the chip with external signal interface, i.e. the network interface card of usual indication.Network interface card also claims network adapter, is the interconnective equipment of computer and local area network (LAN).Be no matter common computer or high-end server or miscellaneous equipment, if need to be connected to local area network (LAN), just need installation one piece of network interface card.
Namely PHY unit 405 plays the effect of network adapter, and the data encapsulation exported by MAC protocol processing unit 403 is that packet (or claiming Frame) passes through network afterwards, is namely sent to ustomer premises access equipment by cable.
PHY unit 405 is after the Frame receiving ustomer premises access equipment transmission, and the data parsed from Frame are sent to MAC protocol processing unit 403 by resolution data frame.PHY chip in PHY unit 405 specifically can adopt the chips such as RTL8201BL, VT6103.
Specifically can SGMII(SerialGigabitMediaIndependentInterface be passed through, Serial Gigabit Media Independent Interface between MAC protocol processing unit 403 and PHY unit 405) interface transmission data.
MAC protocol processing unit 403 is also connected with laser emission element 401, and MAC protocol processing unit 403 is after the data receiving PHY unit 405 transmission, and the signal of telecommunication obtained after carrying out MAC protocol process to the data received outputs to laser emission element 401.Particularly, MAC protocol processing unit 403 receive PHY unit 405 send data after, carry out the MAC protocol process of upward signal: GESERDES(gigabit serioparallel exchange), GEMAC's (gigabit Ethernet medium access control), 802.1Q protocol processes, 802.1ad protocol processes, 802.1D protocol processes, 802.3ah protocol processes, FEC(forward error correction); The data received from PHY unit 405 change into after parallel data through GigabitSerDes built-in in protocol processes chip and carry out MAC protocol process by MAC protocol processing unit 403, after data after MAC protocol process being converted to the signal of telecommunication of serial data, output to laser emission element 401.
After laser emission element 401 receives the signal of telecommunication of MAC protocol processing unit 403 output, the signal of telecommunication according to receiving sends corresponding uplink optical signal to OLT301.Particularly, laser emission element 401 as shown in Figure 6, comprising: laser and drive circuit thereof.The drive circuit of laser emission element 401 launches the laser of specific wavelength as uplink optical signal according to the laser light emitting light source in the signal of telecommunication drive laser received after receiving the signal of telecommunication that MAC protocol processing unit 403 exports.
Mainly comprise MCU chip in MCU unit 404, realize following function by MCU chip:
MCU unit 404 can be communicated with drive circuit by iic bus or other universal serial bus or parallel bus, in order to control drive circuit, or the parameter of configuration driven circuit, realize the digital supervision to laser emission element 401 and controlling functions;
MCU unit 404 also can be communicated with amplitude limiting amplifier circuit by iic bus or other universal serial bus or parallel bus, in order to control amplitude limiting amplifier circuit, or the parameter of configuration amplitude limiting amplifier circuit, realize the digital supervision to laser pick-off unit 402 and controlling functions;
In addition, MCU unit 404 also communicates with MAC protocol processing unit 403 by iic bus or other universal serial bus or parallel bus, in order to realize the function such as software upgrading, order test, Serial Port Information acquisition of MAC protocol processing unit 403;
MCU unit 404 also communicates with PHY unit 405, in order to realize the control to PHY chip by iic bus or SGMII interface or other universal serial bus or parallel bus.
MCU unit 404 goes back the instruction that identifiable design obtains OLT301 transmission.Particularly, MAC protocol processing unit 403 is after to the MAC protocol process of downstream signal, if judge, identify, the downstream signal of reception is the signaling that OLT301 sends, then this signaling sent to MCU unit 404, MCU unit 404 from the signaling received, resolve the instruction obtaining OLT301 and send.Corresponding operating is carried out in the instruction that MCU unit 404 sends according to OLT301, specifically can comprise: control the laser emission element 401 of this optical module, laser pick-off unit 402, MAC protocol processing unit 403, PHY unit 405, or return corresponding data to OLT301, thus realize the Long-distance Control of OLT301 to this ONU optical module.
MCU chip in MCU unit 404 can be single-chip microcomputer, microprocessor, CPU, FPGA etc.
Above-mentioned MAC protocol processing unit 403 can adopt discrete chip respectively with MCU unit 404: protocol processes chip and MCU chip realize, and also accessible site realizes in a chip.
In addition, also memory cell 406 can be comprised in ONU optical module 303.MCU unit 404 is connected with memory cell 406, and memory cell 406 is in order to stored parameter or instruction etc.
The ONU optical module 303 of the above-mentioned IEEE802.3ahEPONMAC of being integrated with chip and digital supervision function and long distance communication can adopt the package casing of SFP optical module, and the schematic diagram of SFP package casing as shown in Figure 7; As can be seen from Figure 7, the optical module being integrated with MAC function takes up room very little.Fig. 8 shows the external pin schematic diagram of the ONU optical module of the embodiment of the present invention.
In the optical module for optical network unit that the embodiment of the present invention provides, owing to being integrated with MAC protocol processing unit and PHY unit, the MAC protocol conversion of Ethernet and the data-transformation facility of local area network (LAN) can be realized, thus optical module for optical network unit can directly be connected with ustomer premises access equipment, in EPON, need not optical network unit system equipment be set again, thus greatly reduce the cost of optical-fiber network, also save space shared by optical-fiber network.
One of ordinary skill in the art will appreciate that all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program has come, this program can be stored in a computer read/write memory medium, as: ROM/RAM, magnetic disc, CD etc.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. an optical module for optical network unit, described optical module for optical network unit can realize the MAC protocol conversion of Ethernet and the data-transformation facility of local area network (LAN), and described optical module for optical network unit can directly be connected with ustomer premises access equipment, and described optical module for optical network unit comprises:
Laser pick-off unit, the downlink optical signal that the optical line terminal OLT for receiving in EPON sends, and export the corresponding signal of telecommunication according to the downlink optical signal received;
Media interviews control MAC protocol processing unit, and for receiving the signal of telecommunication that described laser pick-off unit exports, the data obtained after carrying out MAC protocol process to the signal of telecommunication received from described laser pick-off unit export;
The data encapsulation received from described MAC protocol processing unit for receiving the data that described MAC protocol processing unit exports, and is sent to ustomer premises access equipment by network cable after Frame by physical layer PHY unit;
Laser emission element, the signal of telecommunication that described laser emission element exports for receiving described MAC protocol processing unit, the signal of telecommunication according to receiving sends corresponding uplink optical signal to described OLT;
Described PHY unit also for receive described ustomer premises access equipment send Frame after, this Frame is resolved, the data parsed from this Frame is sent to described MAC protocol processing unit;
The signal of telecommunication obtained after the data of described MAC protocol processing unit also for described PHY unit being sent carry out MAC protocol process outputs to described laser emission element.
2. optical module as claimed in claim 1, it is characterized in that, described laser emission element comprises: laser and drive circuit thereof; Wherein, after described drive circuit receives the signal of telecommunication of described MAC protocol processing unit output, the laser light emitting light source in described laser is driven to launch uplink optical signal according to the signal of telecommunication received; And
Described laser pick-off unit comprises: photodiode, trans-impedance amplifier TIA, amplitude limiting amplifier circuit; Described photodiode exports corresponding response current to described TIA after detecting described downlink optical signal, described TIA exports corresponding differential electric signal to described amplitude limiting amplifier circuit, the differential signal of reception is carried out limited range enlargement by amplitude limiting amplifier circuit, exports the corresponding signal of telecommunication to described MAC protocol processing unit.
3. optical module as claimed in claim 1, is characterized in that, also comprise:
MCU unit, for communicating with described MAC protocol processing unit, realizes the software upgrading of described MAC protocol processing unit; And
Described MCU unit also for communicating with described PHY unit, in order to control the PHY chip in described PHY unit; And
Described MAC protocol processing unit, also for after carrying out MAC protocol process to the signal of telecommunication received from described laser pick-off unit, receives the signaling that described OLT sends, then the signaling that described OLT sends is outputted to described MCU unit if judge; Described MCU unit also for obtain described OLT send signaling after, carry out corresponding operating according to the instruction therefrom parsed.
4. optical module as claimed in claim 1, it is characterized in that, the model of the PHY chip adopted in described PHY unit is RTL8201BL or VT6103; And
The model of the protocol processes chip adopted in described MAC protocol processing unit is Atheros8829.
5. an EPON, comprise: passive optical splitters POS, the optical line terminal OLT be connected by optical fiber with the uplink port of described POS, and multiple optical module for optical network unit as claimed in claim 1 be connected by optical fiber with the downlink port of described POS respectively;
Wherein, described optical module is used for being connected by network cable with the ustomer premises access equipment in local area network (LAN), after the downlink optical signal receiving described OLT transmission, downlink optical signal is converted to the data that the signal of telecommunication obtains after MAC protocol process, sends to described ustomer premises access equipment.
6. optical-fiber network as claimed in claim 5, it is characterized in that, described optical module comprises:
Laser pick-off unit, the downlink optical signal that the optical line terminal OLT for receiving in EPON sends, and export the corresponding signal of telecommunication according to the downlink optical signal received;
Media interviews control MAC protocol processing unit, and for receiving the signal of telecommunication that described laser pick-off unit exports, the data obtained after carrying out MAC protocol process to the signal of telecommunication received from described laser pick-off unit export;
The data encapsulation received from described MAC protocol processing unit for receiving the data that described MAC protocol processing unit exports, and is sent to ustomer premises access equipment by network cable after Frame by physical layer PHY unit.
7. optical-fiber network as claimed in claim 6, is characterized in that,
Described optical module is also for receiving the data that described ustomer premises access equipment sends, and the data sent by described ustomer premises access equipment, after MAC protocol process, are converted to uplink optical signal and send to described OLT.
8. optical-fiber network as claimed in claim 7, it is characterized in that, described optical module also comprises: laser emission element; And
Described PHY unit also for receive described ustomer premises access equipment send Frame after, this Frame is resolved, the data parsed from this Frame is sent to described MAC protocol processing unit;
The signal of telecommunication obtained after the data of described MAC protocol processing unit also for described PHY unit being sent carry out MAC protocol process outputs to described laser emission element;
The signal of telecommunication that described laser emission element exports for receiving described MAC protocol processing unit, the signal of telecommunication according to receiving sends corresponding uplink optical signal to described OLT.
9. optical-fiber network as claimed in claim 8, it is characterized in that, described optical module also comprises:
MCU unit, for communicating with described MAC protocol processing unit, carries out software upgrading to described MAC protocol processing unit; And
Described MCU unit also for communicating with described PHY unit, in order to control the PHY chip in described PHY unit; And
Described MAC protocol processing unit, also for after carrying out MAC protocol process to the signal of telecommunication received from described laser pick-off unit, receives the signaling that described OLT sends, then the signaling that described OLT sends is outputted to described MCU unit if judge; Described MCU unit also for obtain described OLT send signaling after, carry out corresponding operating according to the instruction therefrom parsed.
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| CN201610217922.7A CN105703836B (en) | 2012-10-09 | 2012-10-09 | Optical module for optical network unit |
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| CN105406920B (en) * | 2015-10-30 | 2018-06-26 | 武汉光迅科技股份有限公司 | A kind of optical module for supporting gigabit Ethernet protocol processes |
| CN109923802B (en) * | 2017-01-20 | 2021-01-08 | 华为技术有限公司 | Data processing method, optical access equipment and optical access system |
| CN110535867B (en) * | 2019-09-03 | 2021-06-15 | 北京锐安科技有限公司 | Server safety device and method and server |
| CN112672237A (en) * | 2020-12-24 | 2021-04-16 | 武汉瑞盈通网络技术有限公司 | OTN equipment and control method |
| CN117240355B (en) * | 2023-11-14 | 2024-02-02 | 四川泰瑞创通讯技术股份有限公司 | Optical module rate self-adaptive adjustment method, device, equipment and readable storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101039148A (en) * | 2007-02-07 | 2007-09-19 | 华为技术有限公司 | Optical module and method and network equipment for supporting GE optical connector and FE optical connector |
| CN101075853A (en) * | 2007-06-26 | 2007-11-21 | 上海大学 | Optical network unit of Ethernet passive optical network |
| CN101188502A (en) * | 2007-12-06 | 2008-05-28 | 上海大学 | Ethernet passive optical network transfer unit with telecom E1 interface |
| CN101394678A (en) * | 2008-11-07 | 2009-03-25 | 烽火通信科技股份有限公司 | Serialization/de-serialization interface module generally used in GEPON/GPON |
| CN101867411A (en) * | 2010-06-17 | 2010-10-20 | 中兴通讯股份有限公司 | Method, system and device for realizing passive optical network optical fiber protection |
| CN201766683U (en) * | 2010-03-29 | 2011-03-16 | 华为技术有限公司 | USB network card of PON (passive optical network) |
| CN102131132A (en) * | 2010-11-04 | 2011-07-20 | 华为技术有限公司 | Energy-saving method and equipment for passive optical network (PON) |
| CN102638735A (en) * | 2012-04-13 | 2012-08-15 | 瑞斯康达科技发展股份有限公司 | Optical node device and business switching method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100645752B1 (en) * | 2005-09-16 | 2006-11-14 | 엘지노텔 주식회사 | An optical line terminal of an wavelength division multiplex-passive optical network |
| US8903250B2 (en) * | 2010-08-20 | 2014-12-02 | Broadcom Corporation | Cost-effective multi-rate upstream for 10GEPON based on high efficiency coding |
| CN102437941B (en) * | 2011-10-19 | 2014-05-07 | 烽火通信科技股份有限公司 | Ethernet passive optical network (EPON) optical network unit fusing Ethernet over coaxial cable (EoC) function |
-
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101039148A (en) * | 2007-02-07 | 2007-09-19 | 华为技术有限公司 | Optical module and method and network equipment for supporting GE optical connector and FE optical connector |
| CN101075853A (en) * | 2007-06-26 | 2007-11-21 | 上海大学 | Optical network unit of Ethernet passive optical network |
| CN101188502A (en) * | 2007-12-06 | 2008-05-28 | 上海大学 | Ethernet passive optical network transfer unit with telecom E1 interface |
| CN101394678A (en) * | 2008-11-07 | 2009-03-25 | 烽火通信科技股份有限公司 | Serialization/de-serialization interface module generally used in GEPON/GPON |
| CN201766683U (en) * | 2010-03-29 | 2011-03-16 | 华为技术有限公司 | USB network card of PON (passive optical network) |
| CN101867411A (en) * | 2010-06-17 | 2010-10-20 | 中兴通讯股份有限公司 | Method, system and device for realizing passive optical network optical fiber protection |
| CN102131132A (en) * | 2010-11-04 | 2011-07-20 | 华为技术有限公司 | Energy-saving method and equipment for passive optical network (PON) |
| CN102638735A (en) * | 2012-04-13 | 2012-08-15 | 瑞斯康达科技发展股份有限公司 | Optical node device and business switching method thereof |
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| CN105703836A (en) | 2016-06-22 |
| CN102916746A (en) | 2013-02-06 |
| CN105703836B (en) | 2017-12-19 |
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