CN206181285U - Central office equipment and three nets fusion system - Google Patents
Central office equipment and three nets fusion system Download PDFInfo
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- CN206181285U CN206181285U CN201621211815.5U CN201621211815U CN206181285U CN 206181285 U CN206181285 U CN 206181285U CN 201621211815 U CN201621211815 U CN 201621211815U CN 206181285 U CN206181285 U CN 206181285U
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Abstract
An embodiment of the utility model provides a central office equipment and three nets fusion system, equipment includes: spectrometer and a plurality of wavelength division multiplexer, the first input end of spectrometer is used for receiving video signal, a plurality of first output of spectrometer respectively with correspond wavelength division multiplexer's second input coupling, every wavelength division multiplexer's third input all with outside switch coupling. Equipment for can be under the condition that does not change the network that the operator laid at present, the simple realization integration of three networks will be and will spectrometer and a plurality of wavelength division multiplexer are integrated in a central office equipment, have improved the reliability and the stability of equipment.
Description
Technical field
This utility model is related to the communications field, in particular to a kind of central office equipment and three-network integration system.
Background technology
Operator's transmission network is to be based on base band transmission, and broadcasting and TV video is accessed and typically accessed using RF videos, two kinds of letters
Number cannot transmit in operator's digital transmission equipment simultaneously again, if desired realize two kinds of signal simultaneous transmissions simultaneously, then need
Change the network environment that operator has laid, or need to increase many equipment of needs, greatly waste manpower and materials.
Utility model content
In view of this, the purpose of this utility model embodiment is to provide a kind of central office equipment and three-network integration system,
To solve the above problems.
To achieve these goals, the technical scheme that this utility model embodiment is adopted is as follows：
In a first aspect, this utility model embodiment provides a kind of central office equipment, three-network integration system is applied to, it is described
Equipment includes：Beam splitter and multiple wavelength division multiplexers, the beam splitter is provided with first input end and multiple first outfans,
Each described wavelength division multiplexer is provided with the second input, the 3rd input and the second outfan, and the first of the beam splitter
Input is used to receive video signal, multiple first outfans of the beam splitter respectively with the corresponding wavelength division multiplexer
Second input is coupled, and the 3rd input of each wavelength division multiplexer is coupled with external switch；The beam splitter is used
In the video signal received by the first input end is divided into into multi-channel video signal, and video signal described in multichannel is passed through
Multiple first outfans are respectively outputted to the second input of the corresponding wavelength division multiplexer；Each described wavelength-division multiplex
Device is used to receive what the beam splitter was input into by the video signal and described external switch of the output of the first outfan
Broadband signal, and the video signal and the broadband signal are fused into into composite signal all the way, by second outfan
Send.
Second aspect, this utility model embodiment provides a kind of three-network integration system, and the system includes：Central office sets
Standby, video signal output device, broadband signal outut device, local side receiving device, the video signal output device, the width
Band signal outut device and the local side receiving device are connected respectively with the central office equipment, and the video signal output sets
It is ready for use on and video signal is sent to into the central office equipment；The broadband signal outut device is used to be sent to broadband signal
The central office equipment；The central office equipment is used for the video signal that will be respectively received and broadband signal fusion
Into composite signal all the way and it is sent to the local side receiving device；The local side receiving device is used to receive the central office equipment
The composite signal for sending, and it is decomposed into the video signal and the broadband signal by described.
Compared with prior art, this utility model embodiment is provided central office equipment and three-network integration system, due to logical
Cross wavelength-division multiplex and respectively the broadband signal that video signal and described external switch send is fused into into composite signal all the way, concurrently
See off so that only needing in central office just can be in the network for not changing current operator laying using the central office equipment
In the case of, simply realize the integration of three networks.And the beam splitter and multiple wavelength division multiplexers are integrated in into a center
In office's equipment, the reliability and stability of equipment are improve.
To enable above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and
Coordinate appended accompanying drawing, be described in detail below.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below will be to use needed for embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of structured flowchart of central office equipment that this utility model first embodiment is provided.
Fig. 2 is a kind of structured flowchart of central office equipment that this utility model second embodiment is provided.
Fig. 3 is a kind of structured flowchart of central office equipment that this utility model 3rd embodiment is provided.
Fig. 4 is a kind of structured flowchart of central office equipment that this utility model fourth embodiment is provided.
Fig. 5 is a kind of structured flowchart of three-network integration system that the embodiment of this utility model the 5th is provided.
Icon：100- central office equipments；110- beam splitters；120- wavelength division multiplexers；111- first input ends；
The outfans of 112- first；The inputs of 121- second；The inputs of 122- the 3rd；The outfans of 123- second；140- light amplification
Device；The inputs of 141- the 5th；The outfans of 142- the 4th；130- wavelength shifters；The inputs of 131- the 4th；132- the 3rd
Outfan；700- three-network integration systems；200- video signal output devices；300- broadband signal outut devices；400- offices
Termination receiving unit；500- optical line terminals；600- optical nodes.
Specific embodiment
Below in conjunction with accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of this utility model, rather than the reality of whole
Apply example.The component of this utility model embodiment generally described and illustrated in accompanying drawing herein can be come with a variety of configurations
Arrangement and design.Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit
Claimed scope of the present utility model, but it is merely representative of selected embodiment of the present utility model.Based on this utility model
Embodiment, the every other embodiment that those skilled in the art are obtained on the premise of creative work is not made, all
Belong to the scope of this utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and is explained in subsequent accompanying drawing.Meanwhile, it is new in this practicality
In the description of type, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relatively important
Property.
Fig. 1 shows a kind of structured flowchart of central office equipment 100 that this utility model first embodiment is provided.This practicality
New embodiment provides a kind of central office equipment 100, is applied to three-network integration system 700, and the equipment includes：Beam splitter
110 and multiple wavelength division multiplexers 120.
Beam splitter 110 is a kind of passive device, and also known as optical branching device, they do not need external energy, as long as there is input light
.Beam splitter 110 is made up of incident and exit slit, reflecting mirror and dispersion element, and its effect is to inhale required resonance
Take-up is separated.The critical component of beam splitter 110 is dispersion element.In the present embodiment, the beam splitter 110 is provided with
One input 111 and multiple first outfans 112.The first input end 111 of the beam splitter 110 is used to receive video signal.
The video signal received by the first input end 111 is divided into multi-channel video signal by the beam splitter 110, and by multichannel institute
State video signal to export respectively by multiple first outfans 112.
Further, the beam splitter 110 is fiber splitter 110.For example, fused biconical taper fiber splitter 110, described
Fused biconical taper fiber splitter 110 is lost low, good stability, and small volume.
Each described wavelength division multiplexer 120 is provided with the second input 121, the 3rd input 122 and the second outfan
123.3rd input 122 of each wavelength division multiplexer 120 is coupled with external switch.The beam splitter 110 is distinguished
Couple with the plurality of wavelength division multiplexer 120, further, multiple first outfans 112 of the beam splitter 110 respectively with it is right
Second input 121 of the wavelength division multiplexer 120 answered is coupled.Each described wavelength division multiplexer 120 is defeated by described second
Enter end 121 and receive the video signal and described external switch of the beam splitter 110 by the output of the first outfan 112
The broadband signal of input, and the video signal and the broadband signal are fused into into composite signal all the way, by described second
Outfan 123 sends.
Further, the wavelength division multiplexer 120 can be CWDM (Coarse Wavelength Division
Multiplexer, coarse wavelength division multiplexer device 120) or DWDM (Dense Wavelength Division Multiplexer, it is close
Collection wavelength division multiplexer 120).
The optical signal of different wave length is multiplexed to simple optical fiber and is transmitted by CWDM using optical multiplexer, in the reception of link
End, the mixed signal in optical fiber is decomposed into the signal of different wave length by optical demultiplexer, is connected to corresponding receiving device,
CWDM has the advantages that broader wavelength interval and low cost, wherein, the current standard wave length of industry is at intervals of 20nm.
DWDM referred in the optical fiber specified, and the tight spectrum spacing of single fiber carrier is multiplexed, with facility
With the transmission performance that can be reached, for example, the dispersion or decay of minimum degree is reached.In this way, in given letter
Under breath transmission capacity, it is possible to reduce the total quantity of required optical fiber.
Further, the model and species of the plurality of wavelength division multiplexer 120 can be with identical, it is also possible to different, described
Multiple wavelength division multiplexers 120 can select different wavelength division multiplexers 120 according to the different video signal of the wavelength for receiving.
In the present embodiment, the video signal received by the first input end 111 is divided into many by the beam splitter 110
Road video signal, and video signal described in multichannel is respectively outputted to by multiple first outfans 112 corresponding described
Second input 121 of wavelength division multiplexer 120, it is defeated by first that each described wavelength division multiplexer 120 receives the beam splitter 110
Go out the video signals of the output of end 112 and the broadband signal of described external switch input, and by the video signal and
The broadband signal is fused into composite signal all the way, is sent by second outfan 123.
The central office equipment 100 that this utility model embodiment is provided, due to by wavelength-division multiplex respectively by video signal and
The broadband signal that described external switch sends is fused into composite signal all the way, and sends so that only need in central office
Just three can be simply realized using the central office equipment 100 in the case where the network of current operator laying is not changed
Net fusion, and cause the composite signal after synthesis to only need to be sent to local side apparatus by by an optical fiber respectively, significantly
Optical fiber is saved.Further, the beam splitter 110 and multiple wavelength division multiplexers 120 are integrated in into a central office equipment
In 100, the reliability and stability of equipment is improve.
Fig. 2 shows a kind of structured flowchart of central office equipment 100 that this utility model second embodiment is provided.This practicality
The central office equipment 100 that new embodiment is provided, compared with the central office equipment 100 provided in a upper embodiment, the equipment
Also include image intensifer 140.
Image intensifer 140, is a kind of sub-system products being amplified to optical signal.In the present embodiment, the light amplification
Device 140 is provided with the 5th input 141 for receiving video signal and is provided with for the beam splitter 110
4th outfan 142 of the coupling of one input 111.Further, the image intensifer 140 be fiber amplifier, the optical fiber
Amplifier is miniaturization, integrated fiber amplifier, can further reduce the volume of the central office equipment 100.
It is understood that in the beam splitter 110 and multiple wavelength division multiplexers 120 in the present embodiment and a upper embodiment
It is identical, just repeat no more herein.
In the present embodiment, the video signal received by the 5th input 141 is carried out letter by the image intensifer 140
The amplification of number intensity, and by the first input end 111 of the 4th outfan 142 output to the beam splitter 110, described point
The video signal for receiving is divided into multi-channel video signal by light device 110, and by video signal described in multichannel by multiple described the
One outfan 112 is respectively outputted to the second input 121 of the corresponding wavelength division multiplexer 120, each described wavelength-division multiplex
It is defeated by the video signal and described external switch of the output of the first outfan 112 that device 120 receives the beam splitter 110
The broadband signal for entering, and the video signal and the broadband signal are fused into into composite signal all the way, it is defeated by described second
Go out end 123 to send.
The central office equipment 100 that the present embodiment is provided, except a upper embodiment can be solved in addition to soluble problem, by
In image intensifer 140 is also provided with, the video signal for receiving the amplification of signal intensity is carried out into so that by beam splitter
Video signal intensity after 110 light splitting also increases, so as to pass through the signal intensity of the composite signal that wavelength division multiplexer 120 synthesizes
It is bigger, transmission at a distance is so more beneficial for, and as a result of fiber amplifier, further reduce the central office and set
Standby 100 volume.
Fig. 3 shows a kind of structured flowchart of central office equipment 100 that this utility model 3rd embodiment is provided.This practicality
The central office equipment 100 that new embodiment is provided, compared with the central office equipment 100 provided in first embodiment, the equipment
Also include wavelength shifter 130.
The wavelength shifter 130 is coupled respectively with external switch and the beam splitter 110, further, the ripple
Long transducer 130 is provided with the 4th input 131 that couples with described external switch and is provided with multiple 3rd outfans
132, the plurality of 3rd outfan 132 is coupled respectively with the second input 121 of the corresponding wavelength division multiplexer 120.
4th input 131 of the wavelength shifter 130 is used to receive the receiving wide-band signal of external switch input,
The broadband signal for receiving is converted to the wavelength shifter 130 broadband signal of preset wavelength, for example, will receive
1310nm wavelength broadband signal by wavelength shifter 130 be converted into 1550nm wavelength broadband signal, Ke Yili
Solution be, it is not limited to this, after the wavelength of broadband signal is changed, sent out respectively by the 3rd outfan 132
It is sent to the second input 121 of corresponding each wavelength division multiplexer 120.In this way so that the central office equipment 100
It is no longer limited by the scope of the wavelength of the incoming broadband signal of wavelength and the switch of video signal, each wavelength-division multiplex
Device 120 could be arranged to identical wavelength division multiplexer 120, when the ripple of wavelength and the broadband signal of the video signal
Appearance is simultaneously, it is only necessary to be transformed into different wavelength by the wavelength convert machine, you can enter by the wavelength division multiplexer 120
The synthesis of row signal.
Further, the wavelength shifter 130 is optical transponder unit, for example, semiconductor optical amplifier wavelength conversion
Device.
It is understood that in the beam splitter 110 and multiple wavelength division multiplexers 120 and first embodiment in the present embodiment
It is identical, just repeat no more herein.
In the present embodiment, the video signal received by the first input end 111 is divided into many by the beam splitter 110
Road video signal, and video signal described in multichannel is respectively outputted to by multiple first outfans 112 corresponding described
Second input 121 of wavelength division multiplexer 120.The wavelength shifter 130 receives external switch by the 4th input 131
The receiving wide-band signal of input, by the broadband signal for receiving the broadband signal of preset wavelength, and the described 3rd are converted to
Outfan 132 is separately sent to the second input 121 of corresponding each wavelength division multiplexer 120, each described wavelength division multiplexer
120 receive the video signal and described external switch input of the beam splitter 110 by the output of the first outfan 112
Broadband signal, and the video signal and the broadband signal are fused into into composite signal all the way, export by described second
End 123 sends.
The central office equipment 100 that this utility model embodiment is provided, except solving what is can solve the problem that in first embodiment
Outside problem, as a result of the wavelength shifter 130 so that the central office equipment 100 is no longer limited by video signal
The scope of the wavelength of the incoming broadband signal of wavelength and the switch, each wavelength division multiplexer 120 could be arranged to completely
Identical wavelength division multiplexer 120, when the wavelength of the video signal is identical with the wavelength of the broadband signal, it is only necessary to pass through
The wavelength convert machine is transformed into different wavelength, you can carry out the synthesis of signal by the wavelength division multiplexer 120.
Fig. 4 shows a kind of structured flowchart of central office equipment 100 that this utility model fourth embodiment is provided.This practicality
The central office equipment 100 that new embodiment is provided, compared with the central office equipment 100 provided in a upper embodiment, the equipment
Also include image intensifer 140.
Image intensifer 140, is a kind of sub-system products being amplified to optical signal.In the present embodiment, the light amplification
Device 140 is provided with the 5th input 141 for receiving video signal and is provided with for the beam splitter 110
4th outfan 142 of the coupling of one input 111.Further, the image intensifer 140 be fiber amplifier, the optical fiber
Amplifier is miniaturization, integrated fiber amplifier, can further reduce the volume of the central office equipment 100.
It is understood that beam splitter 110, multiple wavelength division multiplexers 120 and wavelength division multiplexer 120 in the present embodiment with
It is identical in a upper embodiment, just repeat no more herein.
In the present embodiment, the video signal received by the 5th input 141 is carried out letter by the image intensifer 140
The amplification of number intensity, and by the first input end 111 of the 4th outfan 142 output to the beam splitter 110, described point
The video signal received by the first input end 111 is divided into multi-channel video signal by light device 110, and by video described in multichannel
Signal is respectively outputted to the second input of the corresponding wavelength division multiplexer 120 by multiple first outfans 112
121.The wavelength shifter 130 receives the receiving wide-band signal of external switch input by the 4th input 131, will be described
The broadband signal for receiving is converted to the broadband signal of preset wavelength, and the 3rd outfan 132 be separately sent to it is corresponding
Second input 121 of each wavelength division multiplexer 120, each described wavelength division multiplexer 120 receives the beam splitter 110 by the
The video signal of the output of one outfan 112 and the broadband signal of described external switch input, and the video is believed
Number and the broadband signal be fused into composite signal all the way, sent by second outfan 123.
The central office equipment 100 that the present embodiment is provided, except a upper embodiment can be solved in addition to soluble problem, by
In image intensifer 140 is also provided with, the video signal for receiving the amplification of signal intensity is carried out into so that by beam splitter
Video signal intensity after 110 light splitting also increases, so as to pass through the signal intensity of the composite signal that wavelength division multiplexer 120 synthesizes
It is bigger, transmission at a distance is so more beneficial for, and as a result of fiber amplifier, further reduce the central office and set
Standby 100 volume.
Fig. 5 shows a kind of three-network integration system 700 that the embodiment of this utility model the 5th is provided, and the system includes：
Central office equipment 100, video signal output device 200, broadband signal outut device 300, local side receiving device 400, it is described to regard
Frequency signal output apparatus 200, the broadband signal outut device 300 and the local side receiving device 400 respectively with it is described in
Heart office equipment 100 connects.
The video signal output device 200 is used to for video signal to be sent to the central office equipment 100.For example, may be used
Being equipment of the photoelectricity general bureau for launching video signal.Wherein, the video signal output device 200 can be for exporting
Wavelength is the equipment of the video signal of 1550nm.
The broadband signal outut device 300 is used to for broadband signal to be sent to the central office equipment 100.
The central office equipment 100 is used to for the video signal being respectively received and the broadband signal to be fused into one
Road composite signal is simultaneously sent to the local side receiving device 400.
It is understood that the central office equipment 100 can be the central office equipment mentioned in above-mentioned any embodiment
100, here is omitted.
The local side receiving device 400 is used to receive the composite signal of the transmission of the central office equipment 100, and by institute
State and be decomposed into the video signal and the broadband signal.
Further, the local side receiving device 400 is wavelength division multiplexer 120.
Further, the system can also include：Optical line terminal 500 and optical node 600, the optical line terminal
500 and the optical node 600 be connected with the outfan of the local side receiving device 400 respectively.
In the present embodiment, video signal is sent to the central office equipment by the video signal output device 200
100, broadband signal is sent to the central office equipment 100, the central office equipment by the broadband signal outut device 300
The video signal being respectively received and the broadband signal are fused into composite signal all the way and are sent to the local side by 100
Receiving device 400, the local side receiving device 400 receives the composite signal of the transmission of the central office equipment 100, and by institute
State and be decomposed into the video signal and the broadband signal, and be sent to optical line terminal 500 and optical node 600.
The three-network integration system 700 that the present embodiment is provided, due to using the central office equipment 100 in central office so that
The integration of three networks can be simply realized in the case where the network of current operator laying is not changed.And by the beam splitter
110 and multiple wavelength division multiplexers 120 be integrated in a central office equipment 100, improve the reliability and stability of equipment.
Further, after due to signal fused, the central office equipment 100 is only needed to respectively i.e. can be by the conjunction by an optical fiber
Local side apparatus are sent to into signal, the composite signal is resolved into video signal and width by local side apparatus by taking by wavelength-division
Band signal, greatly reduces the usage amount of optical fiber, further realizes scale networking.
It should be noted that each embodiment in this specification is described by the way of progressive, each embodiment weight
Point explanation is all difference with other embodiment, between each embodiment identical similar part mutually referring to.
In addition, each functional module in this utility model each embodiment can integrate to be formed one it is independent
Part, or modules individualism, it is also possible to which two or more modules are integrated to form an independent part.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposit between operating
In any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that a series of process, method, article or equipment including key elements not only will including those
Element, but also including other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to, for this
For the technical staff in field, this utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.It should be noted that
Arrive：Similar label and letter represents similar terms in following accompanying drawing, therefore, once determined in a certain Xiang Yi accompanying drawing
Justice, then need not further be defined and be explained in subsequent accompanying drawing to it.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any those familiar with the art can readily occur in change in the technical scope that this utility model is disclosed
Or replace, all should cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be described with power
The protection domain that profit is required is defined.
Claims (10)
1. a kind of central office equipment, is applied to three-network integration system, it is characterised in that the equipment includes：Beam splitter and many
Individual wavelength division multiplexer, the beam splitter is provided with first input end and multiple first outfans, and each described wavelength division multiplexer is equal
The second input, the 3rd input and the second outfan are provided with, the first input end of the beam splitter is used to receive video letter
Number, multiple first outfans of the beam splitter are coupled respectively with the second input of the corresponding wavelength division multiplexer, each
3rd input of the wavelength division multiplexer is coupled with external switch；
The beam splitter is used to for the video signal received by the first input end to be divided into multi-channel video signal, and by multichannel
The video signal is respectively outputted to the second input of the corresponding wavelength division multiplexer by multiple first outfans；
Each described wavelength division multiplexer be used for receive the beam splitter by the first outfan output the video signal and
The broadband signal of external switch input, and the video signal and the broadband signal are fused into into synthesis letter all the way
Number, sent by second outfan.
2. equipment according to claim 1, it is characterised in that the equipment also includes wavelength shifter, the wavelength turns
Parallel operation is provided with the 4th input that couples with described external switch and is provided with multiple 3rd outfans, the plurality of
3rd outfan is coupled respectively with the second input of the corresponding wavelength division multiplexer.
3., according to the equipment described in claim 1 or 2, it is characterised in that the equipment also includes image intensifer, the light is put
Big device is provided with the 5th input for receiving video signal and is provided with for the first input end with the beam splitter
4th outfan of coupling.
4. according to the equipment described in claim 3, it is characterised in that the image intensifer is fiber amplifier.
5. according to the equipment described in claim 1 or 2, it is characterised in that the beam splitter is fiber splitter.
6. according to the equipment described in claim 1 or 2, it is characterised in that the wavelength division multiplexer is dense wave division multiplexer.
7. a kind of three-network integration system, it is characterised in that the system includes：Center as described in any one of claim 1 to 6
Office's equipment, video signal output device, broadband signal outut device, local side receiving device, the video signal output device, institute
State broadband signal outut device and the local side receiving device be connected respectively with the central office equipment,
The video signal output device is used to for video signal to be sent to the central office equipment；
The broadband signal outut device is used to for broadband signal to be sent to the central office equipment；
The central office equipment is used to that the video signal being respectively received and the broadband signal to be fused into and be synthesized all the way
Signal is simultaneously sent to the local side receiving device；
The local side receiving device is used to receiving the composite signal that the central office equipment sends, and by the composite signal
It is decomposed into the video signal and the broadband signal.
8. system according to claim 7, it is characterised in that the system also includes：Optical line terminal and optical node,
The optical line terminal and the optical node are connected respectively with the outfan of the local side receiving device.
9. system according to claim 7, it is characterised in that the video signal output device is to be for output wavelength
The equipment of the video signal of 1550nm.
10. the system according to any one of claim 7 to 9, it is characterised in that the local side receiving device is multiple for wavelength-division
Use device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621211815.5U CN206181285U (en) | 2016-11-10 | 2016-11-10 | Central office equipment and three nets fusion system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621211815.5U CN206181285U (en) | 2016-11-10 | 2016-11-10 | Central office equipment and three nets fusion system |
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| Publication Number | Publication Date |
|---|---|
| CN206181285U true CN206181285U (en) | 2017-05-17 |
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ID=58684417
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| CN201621211815.5U Active CN206181285U (en) | 2016-11-10 | 2016-11-10 | Central office equipment and three nets fusion system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106303769A (en) * | 2016-11-10 | 2017-01-04 | 成都必合科技有限公司 | A kind of central office equipment and three-network integration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106303769A (en) * | 2016-11-10 | 2017-01-04 | 成都必合科技有限公司 | A kind of central office equipment and three-network integration system |
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