CN102916746A - Passive optical network and optical network unit optical module thereof - Google Patents
Passive optical network and optical network unit optical module thereof Download PDFInfo
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- CN102916746A CN102916746A CN2012103811502A CN201210381150A CN102916746A CN 102916746 A CN102916746 A CN 102916746A CN 2012103811502 A CN2012103811502 A CN 2012103811502A CN 201210381150 A CN201210381150 A CN 201210381150A CN 102916746 A CN102916746 A CN 102916746A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention discloses a passive optical network and an optical network unit optical module thereof. The optical module comprises a laser receiving unit, an MAC (medium access control) protocol processing unit and a PHY (physical layer) unit. The laser receiving unit is used for outputting a corresponding electric signal according to a downlink optical signal sent from an OLT (optical line terminal). The MAC protocol processing unit is used for performing MAV protocol processing to the electric signal received by the laser receiving unit and then outputting the processed data. The PHY unit is used for packaging the received data from the MAC protocol processing unit into data frames and then sending the data frames to user terminal equipment through network cables. Since the MAC protocol processing unit and the PHY unit are integrated in the optical network unit optical module, MAC protocol conversion of the Ethernet and a data transmission function of a local area network can be realized, the optical network unit optical module can be connected with the user terminal equipment directly, optical network unit system equipment is omitted from the network, and accordingly cost of the optical network is reduced greatly.
Description
Technical field
The present invention relates to Fibre Optical Communication Technology, relate in particular to a kind of EPON and optical network unit optical module thereof.
Background technology
Present domestic market and international market have begun to use with the optical fiber communication direction that multiple business is merged with a large bandwidth and at a high rate; In numerous solutions, the appearance that Fiber to the home (FTTH) just is considered to the ultimate solution of broadband access.
Yet the present domestic FTTB(Fiber-To-The-Building of having laid 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(Optical Line Terminator of central office, optical line terminal) 1,000 feet in front yard or office adopt optical cable with the transmission of the signal between interior roadside or the limit, building to leaving home; By switch (Switch) and coaxial cable again signal from roadside or limit, building transmit get home or ustomer premises access equipment in the office, such as the LAN switch in computer, intelligent television or the family etc.
Be in the process of FTTH network with the FTTB/FTTC network upgrade, because ustomer premises access equipment can not directly be processed light signal usually, therefore, the FTTH network of usually upgrading, as shown in Figure 2.The OLT of central office is by ODN(light feeder network) and POS(Passive Optical Splitter, passive optical splitters) links to each other, POS is usually referred to as the Splitter(optical splitter), generally there be 2N to divide equally port, if the light intensity of its uplink port input is 1, then the light intensity of its each downlink port output is 1/N.For a FTTH network, generally be that 1 OLT is placed on telecommunication center office, by optical splitter, generally be 1 minute 32 at least then, perhaps 1 minute 64 even 1 minutes 128, namely 1 OLT was with 32 or 64 or 128 ONU optical modules.Each ONU optical module links to each other with an ONU system equipment, in ONU system equipment and the family or the ustomer premises access equipment in the office link to each other, the signal of telecommunication that sends in order to receive ustomer premises access equipment, be sent to OLT at up direction after being converted to light signal by the ONU optical module, and the light signal that the ONU optical module receives is converted to the receivable signal of telecommunication of ustomer premises access equipment sends to ustomer premises access equipment.
Yet the present inventor finds that the FTTH network of prior art is owing to need to be equipped with an ONU system equipment for each ONU optical module at local side, and the cost that drops in the network upgrade process is higher, and the ONU system equipment need to take larger space outerpace.
Summary of the invention
Embodiments of the invention provide a kind of EPON and optical network unit optical module thereof, in order to reduce the FTTH network cost, save network and take up room.
According to an aspect of the present invention, provide a kind of optical network unit optical module, having comprised:
The laser pick-off unit be used for to receive the downlink optical signal that the optical line terminal OLT of EPON sends, and exports the corresponding signal of telecommunication according to the downlink optical signal that receives;
Media interviews control MAC protocol processing unit is used for receiving the signal of telecommunication that described laser pick-off unit is exported, and the data that the signal of telecommunication that receives from described laser pick-off unit carries out obtaining after the MAC protocol processes are exported;
Physical layer PHY unit is used for receiving the data of described MAC protocol processing unit output, and will be to send to ustomer premises access equipment by network cable behind the Frame from the data encapsulation of described MAC protocol processing unit reception.
Further, described optical module also comprises: laser emission element;
Resolve this Frame after also being used for receiving the Frame of described ustomer premises access equipment transmission described PHY unit, and the data that will parse from this Frame send to described MAC protocol processing unit;
Described MAC protocol processing unit also is used for the signal of telecommunication that the data that described PHY unit sends carry out obtaining after the MAC protocol processes is outputed to described laser emission element;
Described laser emission element is used for receiving the signal of telecommunication of described MAC protocol processing unit output, sends corresponding uplink optical signal according to the signal of telecommunication that receives 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, launch uplink optical signal according to the Laser emission light source that the signal of telecommunication that receives drives in the described laser; And
Described laser pick-off unit comprises: photodiode, trans-impedance amplifier TIA, amplitude limiting amplifier circuit.Described photodiode is exported 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, amplitude limiting amplifier circuit carries out limited range enlargement with the differential signal that receives, and exports the corresponding signal of telecommunication to described MAC protocol processing unit.
Further, described optical module also comprises:
The MCU unit is used for communicating by letter with described MAC protocol processing unit, realizes the software upgrading of described MAC protocol processing unit; And
Described MCU unit also is used for and described PHY unit communication, in order to control the PHY chip in the described PHY unit; And
Described MAC protocol processing unit also for after the signal of telecommunication that receives from described laser pick-off unit is carried out the MAC protocol processes, receives the signaling that described OLT sends if judge, and the signaling that then described OLT is sent outputs to described MCU unit; Described MCU unit carries out corresponding operating according to the instruction that therefrom parses after also being used for obtaining the signaling of described OLT transmission.
The model of the PHY chip that preferably, adopts in the described PHY unit is RTL8201BL or VT6103; And
The model of the protocol processes chip that adopts in the described MAC protocol processing unit is Atheros8829.
According to another aspect of the present invention, a kind of EPON also is provided, comprise: passive optical splitters POS, the optical line terminal OLT that links to each other by optical fiber with the uplink port of described POS, and a plurality of optical network unit ONU optical module that links to each other by optical fiber with the downlink port of described POS respectively;
Wherein, described ONU optical module is used for linking to each other by network cable with the ustomer premises access equipment of local area network (LAN), behind the downlink optical signal that receives described OLT transmission, downlink optical signal is converted to the data that the signal of telecommunication obtains after the MAC protocol processes, send to described ustomer premises access equipment.
Wherein, described ONU optical module comprises:
The laser pick-off unit be used for to receive the downlink optical signal that the optical line terminal OLT of EPON sends, and exports the corresponding signal of telecommunication according to the downlink optical signal that receives;
Media interviews control MAC protocol processing unit is used for receiving the signal of telecommunication that described laser pick-off unit is exported, and the data that the signal of telecommunication that receives from described laser pick-off unit carries out obtaining after the MAC protocol processes are exported;
Physical layer PHY unit is used for receiving the data of described MAC protocol processing unit output, and will be to send to ustomer premises access equipment by network cable behind the Frame from the data encapsulation of described MAC protocol processing unit reception.
Further, described ONU optical module also is used for receiving the data that described ustomer premises access equipment sends, and the data that described ustomer premises access equipment is sent are converted to uplink optical signal and send to described OLT after the MAC protocol processes.
Further, described ONU optical module also comprises: laser emission element; And
Resolve this Frame after also being used for receiving the Frame of described ustomer premises access equipment transmission described PHY unit, and the data that will parse from this Frame send to described MAC protocol processing unit;
Described MAC protocol processing unit also is used for the signal of telecommunication that the data that described PHY unit sends carry out obtaining after the MAC protocol processes is outputed to described laser emission element;
Described laser emission element is used for receiving the signal of telecommunication of described MAC protocol processing unit output, sends corresponding uplink optical signal according to the signal of telecommunication that receives to described OLT.
Further, described ONU optical module also comprises:
The MCU unit is used for communicating by letter with described MAC protocol processing unit, and described MAC protocol processing unit is carried out software upgrading; And
Described MCU unit also is used for and described PHY unit communication, in order to control the PHY chip in the described PHY unit; And
Described MAC protocol processing unit also for after the signal of telecommunication that receives from described laser pick-off unit is carried out the MAC protocol processes, receives the signaling that described OLT sends if judge, and the signaling that then described OLT is sent outputs to described MCU unit; Described MCU unit carries out corresponding operating according to the instruction that therefrom parses after also being used for obtaining the signaling of described OLT transmission.
In the optical network unit optical module that the embodiment of the invention provides, because integrated MAC protocol processing unit and PHY unit, can realize the MAC protocol conversion of Ethernet and the data-transformation facility of local area network (LAN), thereby the optical network unit optical module can directly link to each other with ustomer premises access equipment, in the EPON optical network unit system equipment needn't be set again, thereby greatly reduce the cost of optical-fiber network, also saved the shared space of optical-fiber network.
Description of drawings
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 invention;
Fig. 4 is the optical network unit optical module internal circuit schematic diagram of the embodiment of the invention;
Fig. 5 is the laser emission element internal circuit schematic diagram of the embodiment of the invention;
Fig. 6 is the laser acquisition unit internal circuit schematic diagram of the embodiment of the invention;
Fig. 7 is the SFP encapsulation schematic diagram of the optical network unit optical module of the embodiment of the invention;
Fig. 8 is the external pin schematic diagram of the optical network unit optical module of the embodiment of the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, referring to accompanying drawing and enumerate preferred embodiment, the present invention is described in more detail.Yet, need to prove that many details of listing in the specification only are in order to make the reader to one or more aspects of the present invention a thorough understanding be arranged, even if there are not these specific details also can realize these aspects of the present invention.
The terms such as " module " used in this application, " system " are intended to comprise the entity relevant with computer, such as but not limited to hardware, firmware, combination thereof, software or executory software.For example, module can be, but be not limited in: the thread of the process of moving on the processor, processor, object, executable program, execution, program and/or computer.
In the technical scheme of the present invention, the optical network unit optical module of FTTH network, except the function that realizes changing between light signal and the signal of telecommunication, also by adopting pmd layer and the GE MAC(Media Access Control of integrated IEEE 802.3ah agreement, media interviews control) chip of layer (with SERDES) is realized the function of Ethernet data exchange, therefore, the optical network unit optical module can not link to each other with ustomer premises access equipment by the ONU system equipment, but directly link to each other with ustomer premises access equipment by cable, saved space and production cost that network takies.
Describe the technical scheme of the embodiment of the invention in detail below in conjunction with accompanying drawing.The EPON of the embodiment of the invention, as shown in Figure 3, comprising: OLT301, POS302, a plurality of ONU optical module 303.
OLT301 links to each other with the uplink port of POS302 by optical fiber, and each ONU optical module 303 links to each other with each downlink port of POS302 respectively by optical fiber, thereby each ONU optical module 303 is realized and the communicating by letter of OLT301 by optical fiber and POS402.
The ONU optical module 303 of the embodiment of the invention can directly directly link to each other by cable with ustomer premises access equipment (such as router, switch, computer, computer etc.).Be ONU optical module 303 can with local area network (LAN) in ustomer premises access equipment link to each other by network cable, and communicate: receive the data that ustomer premises access equipment sends, the data that ustomer premises access equipment is sent are converted to uplink optical signal and send to OLT301 by optical fiber after the MAC protocol processes; ONU optical module 303 also can be converted to the signal of telecommunication with downlink optical signal after receiving the downlink optical signal that OLT301 sends, and the data communication device that obtains after the MAC protocol processes is crossed network cable and sent to ustomer premises access equipment.
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(Microprogrammed Control Unit, microprogram control unit) unit 404, PHY(physical layer) unit 405.
Generally include laser emission element in the ONU optical module, in order to launch uplink optical signal according to the signal of telecommunication that receives, uplink optical signal is transferred to OLT301 behind optical fiber, POS402;
Also comprise the laser pick-off unit in the ONU optical module, the downlink optical signal that sends in order to receive OLT is exported the corresponding signal of telecommunication according to the downlink optical signal that receives.The downlink optical signal that OLT301 sends is transferred to ONU optical module 303 behind optical fiber, POS402.
Laser pick-off unit 402 in the ONU optical module 303 comprises as shown in Figure 5: optical fiber receive module and amplitude limiting amplifier circuit; Optical fiber receive module generally includes: photodiode, trans-impedance amplifier TIA.The corresponding response current of output is to TIA behind the downlink optical signal that detects the OLT301 transmission for photodiode, and TIA then exports corresponding differential electric signal; This differential signal is sent to amplitude limiting amplifier circuit, and amplitude limiting amplifier circuit carries out limited range enlargement with this differential signal, exports the corresponding signal of telecommunication to MAC protocol processing unit 403.
MAC protocol processing unit 403 links to each other with laser pick-off unit 402, the signal of telecommunication (downstream signal) in order to the amplitude limiting amplifier circuit output that receives laser pick-off unit 402, the signal of telecommunication that receives from laser pick-off unit 402 is carried out the data that obtain after the MAC protocol processes, output to PHY unit 405.Particularly, the protocol processes chip of MAC protocol processing unit 403 is behind the signal of telecommunication that receives 402 outputs of laser pick-off unit, change the serial data that receives into parallel data through Gigabit SerDes built-in in the chip, and parallel data is converted to serial data after through the MAC protocol processes again outputs to PHY unit 405 and send.The protocol processes chip specifically can comprise the MAC protocol processes of downstream signal: the FEC(forward error correction), 802.3ah protocol processes, 802.1D protocol processes, 802.1ad protocol processes, 802.1Q protocol processes, the medium access control of GE MAC(gigabit Ethernet), GE SERDES(gigabit string and conversion) process.Protocol processes chip in the MAC protocol processing unit 403 specifically can adopt the Atheros8829 chip.
No matter be in traditional cable LAN (LAN) or in present popular wireless lan (wlan), the MAC agreement all is widely used.In local area network (LAN), the physical layer of various transmission mediums corresponds to corresponding MAC layer, the network using of generally using at present be the MAC layer standard of IEEE 802.3.
The uplink port of PHY unit 405 links to each other with MAC protocol processing unit 403, is used for receiving the data of MAC protocol processing unit 403 outputs.The downlink port of PHY unit 405 links to each other with ustomer premises access equipment by cable (or claim network cable), receives the data of ustomer premises access equipment transmission or to family end equipment sending data.
PHY refers to physical layer, refers generally to the chip with the external signal interface, i.e. the common network interface card of indication.Network interface card also claims network adapter, is the interconnective equipment of computer and local area network (LAN).No matter be common computer or high-end server or miscellaneous equipment, if need to be connected to local area network (LAN), just need to install a network interface card.
Specifically can pass through SGMII(Serial Gigabit Media Independent Interface, serial kilomegabit Media Independent Interface between MAC protocol processing unit 403 and the PHY unit 405) the interface the transmission of data.
MAC protocol processing unit 403 also links to each other with laser emission element 401, and MAC protocol processing unit 403 is after the data that receive 405 transmissions of PHY unit, and the signal of telecommunication that the data that receive are carried out obtaining after the MAC protocol processes outputs to laser emission element 401.Particularly, MAC protocol processing unit 403 is carried out the MAC protocol processes of upward signal: GE SERDES(gigabit string and conversion after receiving the data that PHY unit 405 sends), the medium access control of GE MAC(gigabit Ethernet), 802.1Q protocol processes, 802.1ad protocol processes, 802.1D protocol processes, 802.3ah protocol processes, FEC(forward error correction); The data that MAC protocol processing unit 403 will receive from PHY unit 405 are carried out the MAC protocol processes after built-in Gigabit SerDes changes parallel data into through the protocol processes chip, after will being converted to the signal of telecommunication of serial data through the data after the MAC protocol processes, output to laser emission element 401.
After laser emission element 401 receives the signal of telecommunication of MAC protocol processing unit 403 outputs, send corresponding uplink optical signal according to the signal of telecommunication that receives to OLT301.Particularly, laser emission element 401 comprises as shown in Figure 6: laser and drive circuit thereof.After the drive circuit of laser emission element 401 receives the signal of telecommunication of MAC protocol processing unit 403 outputs, launch the laser of specific wavelength as uplink optical signal according to the Laser emission light source in the signal of telecommunication drive laser that receives.
Mainly comprise the MCU chip in the MCU unit 404, be achieved as follows function by the MCU chip:
Can communicate by letter with drive circuit by iic bus or other universal serial bus or parallel bus in MCU unit 404, in order to controlling drive circuit, or the parameter of configuration driven circuit, realize digital supervision and control function to laser emission element 401;
Also can communicate by letter with amplitude limiting amplifier circuit by iic bus or other universal serial bus or parallel bus in MCU unit 404, in order to controlling amplitude limiting amplifier circuit, or the parameter of configuration amplitude limiting amplifier circuit, realize digital supervision and control function to laser pick-off unit 402;
In addition, MCU unit 404 also can pass through iic bus or other universal serial bus or parallel bus communicates by letter with MAC protocol processing unit 403, in order to functions such as software upgrading, order test, the Serial Port Information of realizing MAC protocol processing unit 403 obtain;
MCU chip in the MCU unit 404 can be single-chip microcomputer, microprocessor, CPU, FPGA etc.
Above-mentioned MAC protocol processing unit 403 can adopt respectively discrete chip with MCU unit 404: protocol processes chip and MCU chip are realized, also can be integrated in the chip and realize.
In addition, also can comprise memory cell 406 in the ONU optical module 303.MCU unit 404 links to each other with memory cell 406, and memory cell 406 is in order to stored parameter or instruction etc.
The ONU optical module 303 of above-mentioned integrated IEEE 802.3ah EPON MAC 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; The optical module of as can be seen from Figure 7, integrated 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 invention.
In the optical network unit optical module that the embodiment of the invention provides, because integrated MAC protocol processing unit and PHY unit, can realize the MAC protocol conversion of Ethernet and the data-transformation facility of local area network (LAN), thereby the optical network unit optical module can directly link to each other with ustomer premises access equipment, in the EPON optical network unit system equipment needn't be set again, thereby greatly reduce the cost of optical-fiber network, also saved the shared space of optical-fiber network.
One of ordinary skill in the art will appreciate that all or part of step that realizes in above-described embodiment method is to come the relevant hardware of instruction to finish by program, this program can be stored in the computer read/write memory medium, as: ROM/RAM, magnetic disc, CD etc.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle 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 (10)
1. optical network unit optical module comprises:
The laser pick-off unit be used for to receive the downlink optical signal that the optical line terminal OLT of EPON sends, and exports the corresponding signal of telecommunication according to the downlink optical signal that receives;
Media interviews control MAC protocol processing unit is used for receiving the signal of telecommunication that described laser pick-off unit is exported, and the data that the signal of telecommunication that receives from described laser pick-off unit carries out obtaining after the MAC protocol processes are exported;
Physical layer PHY unit is used for receiving the data of described MAC protocol processing unit output, and will be to send to ustomer premises access equipment by network cable behind the Frame from the data encapsulation of described MAC protocol processing unit reception.
2. optical module as claimed in claim 1 is characterized in that, also comprises: laser emission element;
Resolve this Frame after also being used for receiving the Frame of described ustomer premises access equipment transmission described PHY unit, and the data that will parse from this Frame send to described MAC protocol processing unit;
Described MAC protocol processing unit also is used for the signal of telecommunication that the data that described PHY unit sends carry out obtaining after the MAC protocol processes is outputed to described laser emission element;
Described laser emission element is used for receiving the signal of telecommunication of described MAC protocol processing unit output, sends corresponding uplink optical signal according to the signal of telecommunication that receives to described OLT.
3. optical module as claimed in claim 2 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, launch uplink optical signal according to the Laser emission light source that the signal of telecommunication that receives drives in the described laser; And
Described laser pick-off unit comprises: photodiode, trans-impedance amplifier TIA, amplitude limiting amplifier circuit.Described photodiode is exported 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, amplitude limiting amplifier circuit carries out limited range enlargement with the differential signal that receives, and exports the corresponding signal of telecommunication to described MAC protocol processing unit.
4. optical module as claimed in claim 2 is characterized in that, also comprises:
The MCU unit is used for communicating by letter with described MAC protocol processing unit, realizes the software upgrading of described MAC protocol processing unit; And
Described MCU unit also is used for and described PHY unit communication, in order to control the PHY chip in the described PHY unit; And
Described MAC protocol processing unit also for after the signal of telecommunication that receives from described laser pick-off unit is carried out the MAC protocol processes, receives the signaling that described OLT sends if judge, and the signaling that then described OLT is sent outputs to described MCU unit; Described MCU unit carries out corresponding operating according to the instruction that therefrom parses after also being used for obtaining the signaling of described OLT transmission.
5. optical module as claimed in claim 2 is characterized in that, the model of the PHY chip that adopts in the described PHY unit is RTL8201BL or VT6103; And
The model of the protocol processes chip that adopts in the described MAC protocol processing unit is Atheros8829.
6. EPON comprises: passive optical splitters POS, the optical line terminal OLT that links to each other by optical fiber with the uplink port of described POS, and a plurality of optical network unit ONU optical module that links to each other by optical fiber with the downlink port of described POS respectively;
Wherein, described ONU optical module is used for linking to each other by network cable with the ustomer premises access equipment of local area network (LAN), behind the downlink optical signal that receives described OLT transmission, downlink optical signal is converted to the data that the signal of telecommunication obtains after the MAC protocol processes, send to described ustomer premises access equipment.
7. optical-fiber network as claimed in claim 6 is characterized in that, described ONU optical module comprises:
The laser pick-off unit be used for to receive the downlink optical signal that the optical line terminal OLT of EPON sends, and exports the corresponding signal of telecommunication according to the downlink optical signal that receives;
Media interviews control MAC protocol processing unit is used for receiving the signal of telecommunication that described laser pick-off unit is exported, and the data that the signal of telecommunication that receives from described laser pick-off unit carries out obtaining after the MAC protocol processes are exported;
Physical layer PHY unit is used for receiving the data of described MAC protocol processing unit output, and will be to send to ustomer premises access equipment by network cable behind the Frame from the data encapsulation of described MAC protocol processing unit reception.
8. optical-fiber network as claimed in claim 7 is characterized in that,
Described ONU optical module also is used for receiving the data that described ustomer premises access equipment sends, and the data that described ustomer premises access equipment is sent are converted to uplink optical signal and send to described OLT after the MAC protocol processes.
9. optical-fiber network as claimed in claim 8 is characterized in that, described ONU optical module also comprises: laser emission element; And
Resolve this Frame after also being used for receiving the Frame of described ustomer premises access equipment transmission described PHY unit, and the data that will parse from this Frame send to described MAC protocol processing unit;
Described MAC protocol processing unit also is used for the signal of telecommunication that the data that described PHY unit sends carry out obtaining after the MAC protocol processes is outputed to described laser emission element;
Described laser emission element is used for receiving the signal of telecommunication of described MAC protocol processing unit output, sends corresponding uplink optical signal according to the signal of telecommunication that receives to described OLT.
10. optical-fiber network as claimed in claim 9 is characterized in that, described ONU optical module also comprises:
The MCU unit is used for communicating by letter with described MAC protocol processing unit, and described MAC protocol processing unit is carried out software upgrading; And
Described MCU unit also is used for and described PHY unit communication, in order to control the PHY chip in the described PHY unit; And
Described MAC protocol processing unit also for after the signal of telecommunication that receives from described laser pick-off unit is carried out the MAC protocol processes, receives the signaling that described OLT sends if judge, and the signaling that then described OLT is sent outputs to described MCU unit; Described MCU unit carries out corresponding operating according to the instruction that therefrom parses after also being used for obtaining the signaling of described OLT transmission.
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| CN201610217922.7A CN105703836B (en) | 2012-10-09 | 2012-10-09 | Optical module for optical network unit |
| CN201210381150.2A CN102916746B (en) | 2012-10-09 | 2012-10-09 | EPON and optical module for optical network unit thereof |
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| WO2018133049A1 (en) * | 2017-01-20 | 2018-07-26 | 华为技术有限公司 | Data processing method, optical access device, and optical access system |
| CN110535867A (en) * | 2019-09-03 | 2019-12-03 | 北京锐安科技有限公司 | A kind of server security device, method and server |
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| 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 |
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| CN101075853A (en) * | 2007-06-26 | 2007-11-21 | 上海大学 | Optical network unit of Ethernet passive optical network |
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| WO2018133049A1 (en) * | 2017-01-20 | 2018-07-26 | 华为技术有限公司 | Data processing method, optical access device, and optical access system |
| CN110535867A (en) * | 2019-09-03 | 2019-12-03 | 北京锐安科技有限公司 | A kind of server security device, method and server |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105703836A (en) | 2016-06-22 |
| CN102916746B (en) | 2016-03-30 |
| CN105703836B (en) | 2017-12-19 |
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