CN106330319A - Terminal equipment and three-network integration system - Google Patents
Terminal equipment and three-network integration system Download PDFInfo
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- CN106330319A CN106330319A CN201611006133.5A CN201611006133A CN106330319A CN 106330319 A CN106330319 A CN 106330319A CN 201611006133 A CN201611006133 A CN 201611006133A CN 106330319 A CN106330319 A CN 106330319A
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- division multiplexer
- signal
- input
- wavelength
- outfan
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
- H04L12/2869—Operational details of access network equipments
- H04L12/2878—Access multiplexer, e.g. DSLAM
- H04L12/2887—Access multiplexer, e.g. DSLAM characterised by the offered subscriber services
- H04L12/2889—Multiservice, e.g. MSAN
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/27—Arrangements for networking
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
- H04L12/2869—Operational details of access network equipments
- H04L12/2878—Access multiplexer, e.g. DSLAM
- H04L12/2879—Access multiplexer, e.g. DSLAM characterised by the network type on the uplink side, i.e. towards the service provider network
- H04L12/2885—Arrangements interfacing with optical systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0016—Construction using wavelength multiplexing or demultiplexing
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computing Systems (AREA)
- Optical Communication System (AREA)
Abstract
The embodiment of the invention provides a piece of terminal equipment and a three-network integration system. The equipment comprises a wavelength converter, a first wavelength division multiplexer and a second wavelength division multiplexer, wherein the first input end of the wavelength converter is used for receiving OLT uplink signal, the first output end of the wavelength converter is coupled with the third input end of the first wavelength division multiplexer; the second input end of the first wavelength division multiplexer is used for receiving the video signal/OLT uplink signal, the second output end of the first wavelength division multiplexer is coupled with the fourth input end of the second wavelength division multiplexer, and the fifth input end of the second wavelength division multiplexer is used for receiving PON signals. The equipment can realize three-network integration simply under the condition of not changing the network of the current operators, the equipment has high stability, reliability and small volume.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of local side apparatus and three-network integration system.
Background technology
Operator's transmission network is based on base band transmission, and broadcasting and TV video accesses general employing RF video and accesses, two kinds of letters
Number cannot transmit in operator's digital transmission equipment more simultaneously, realize two kinds of signals the most simultaneously and transmit simultaneously, then need
Change the network environment that operator has laid, or need to increase the many equipment of needs, waste manpower and materials greatly.
Summary of the invention
In view of this, the purpose of the embodiment of the present invention is to provide a kind of local side apparatus and three-network integration system, to solve
The problems referred to above.
To achieve these goals, the technical scheme that the embodiment of the present invention uses is as follows:
First aspect, embodiments provides a kind of local side apparatus, is applied to three-network integration system, described equipment bag
Including: wavelength shifter, first wave division multiplexer and the second wavelength division multiplexer, described wavelength shifter is provided with the first input
End and the first outfan, described first wave division multiplexer is provided with the second input, the 3rd input and the second outfan, described
Second wavelength division multiplexer is provided with four-input terminal, the 5th input and the 3rd outfan, and the first of described wavelength shifter is defeated
Enter to hold for receiving OLT upward signal, the first outfan of described wavelength shifter and the 3rd of described first wave division multiplexer
Input couples, and the second input of described first wave division multiplexer is used for receiving video signal/OLT upward signal, and described the
Second outfan of one wavelength division multiplexer couples with the four-input terminal of described second wavelength division multiplexer, described second wavelength-division multiplex
Device the 5th input be used for receiving PON signal；Described wavelength shifter will be for receiving by described first input end
OLT upward signal be converted to the OLT upward signal of preset wavelength, and export described first wave by described first outfan
Described 3rd input of division multiplexer；Described first wave division multiplexer for by the OLT upward signal of described preset wavelength with
And after the video signal/OLT upward signal received by described second input is merged, generate the first composite signal, and lead to
Cross described second outfan and export the four-input terminal of described second wavelength division multiplexer；Described second wavelength division multiplexer is used
After by described first composite signal and the described PON signal fused by described 5th input reception, generate the second conjunction
Become signal, described second composite signal is sent by the 3rd outfan.
Second aspect, embodiments provides a kind of three-network integration system, and described system includes: local side apparatus, PON
Signal output apparatus, the 3rd wavelength division multiplexer and central office equipment, described local side apparatus exports with described PON signal respectively
Equipment and described 3rd wavelength division multiplexer connect, described central office equipment for send by video signal/OLT upward signal with
And the composite signal after the synthesis of OLT upward signal；Described 3rd wavelength division multiplexer is for decompositing the composite signal received
Described video signal/OLT upward signal and described OLT upward signal；Described PON signal output apparatus is for by PON signal
It is sent to described local side apparatus；Described local side apparatus is for receiving described PON signal, the described up letter of video signal/OLT respectively
Number and described OLT upward signal, and by up to described PON signal, described video signal/OLT upward signal and described OLT
Form the second composite signal after signal fused, and send.
Compared with prior art, the local side apparatus of embodiment of the present invention offer and three-network integration system, by using first
OLT upward signal and video signal/OLT upward signal of described preset wavelength are merged generation the first synthesis by wavelength division multiplexer
Signal, and use the second wavelength division multiplexer that described first composite signal and PON signal fused are generated the second composite signal, and
It is sent to user terminal so that have only to use described local side apparatus just can not change network that current operator lays
In the case of, simply realize the integration of three networks.Further, owing to wavelength shifter, first wave division multiplexer and the second wavelength-division is multiple
It is integrated in an equipment with device, improves the stability of equipment, reliability and homogeneity of product, reduce equipment volume.
For making the above-mentioned purpose of the present invention, feature and advantage to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below by embodiment required use attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other relevant accompanying drawings.
Fig. 1 is the structured flowchart of a kind of local side apparatus that first embodiment of the invention provides.
Fig. 2 is the structured flowchart of a kind of local side apparatus that second embodiment of the invention provides.
Fig. 3 is the structured flowchart of a kind of local side apparatus that third embodiment of the invention provides.
Fig. 4 is the structured flowchart of a kind of local side apparatus that fourth embodiment of the invention provides.
Fig. 5 is the structured flowchart of a kind of three-network integration system that fifth embodiment of the invention provides.
Detailed description of the invention
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Generally exist
Can arrange and design with various different configurations with the assembly of the embodiment of the present invention that illustrates described in accompanying drawing herein.Cause
This, be not intended to limit claimed invention to the detailed description of the embodiments of the invention provided in the accompanying drawings below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment obtained on the premise of going out creative work, broadly falls into the scope of protection of the invention.
It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing
Individual accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.Meanwhile, the present invention's
In description, term " first ", " second " etc. are only used for distinguishing and describe, and it is not intended that indicate or hint relative importance.
Fig. 1 shows a kind of local side apparatus 100 structured flowchart that first embodiment of the invention provides.The embodiment of the present invention carries
Having supplied a kind of local side apparatus 100, described equipment includes: wavelength shifter 110, first wave division multiplexer 120 and the second wavelength-division
Multiplexer 130.
Described wavelength shifter 110 is provided with first input end 111 and the first outfan 112.Described wavelength shifter 110
First input end 111 receive OLT upward signal, the described OLT upward signal received is changed by described wavelength shifter 110
For the OLT upward signal of preset wavelength, such as, the OLT upward signal of the wavelength of the 1310nm received is passed through wavelength shifter
The OLT upward signal of 110 wavelength being converted into 1550nm, it is to be understood that be not limited thereto, when by OLT upward signal
Wavelength change after, sent by described first outfan 112.Wherein, described OLT upward signal can be the Ge/ of OLT
10Ge upward signal.
Further, described wavelength shifter 110 is optical transponder unit, such as, and semiconductor optical amplifier wavelength conversion
Device, semiconductor optical amplifier wavelength shifter, semiconductor optical amplifier wavelength shifter etc..
Described first wave division multiplexer 120 is provided with the second input the 121, the 3rd input 122 and the second outfan
123.Described wavelength shifter 110 couples with described first wave division multiplexer 120, further, and described wavelength shifter 110
First outfan 112 couples with the 3rd input 122 of described first wave division multiplexer 120, and described wavelength shifter 110 passes through
The OLT upward signal of described preset wavelength is sent to described first wave division multiplexer 120 by described first outfan 112.Described
Second input 121 of first wave division multiplexer 120 is used for receiving video signal/OLT upward signal, and the 3rd input 122 is used
In the OLT upward signal receiving described preset wavelength.
Described second wavelength division multiplexer 130 is provided with four-input terminal the 131, the 5th input 132 and the 3rd outfan
133.Described first wave division multiplexer 120 couples with described second wavelength division multiplexer 130, and further, described first wavelength-division is multiple
Couple with the four-input terminal 131 of the second outfan 123 of device 120 with described second wavelength division multiplexer 130.Described first wavelength-division
The OLT upward signal of described preset wavelength and the video that received by described second input 121 are believed by multiplexer 120
Number/after OLT upward signal merges, generate the first composite signal, and exported by described second outfan 123.Described second ripple
Division multiplexer 130 the 5th input 132 be used for receiving PON signal.Described second wavelength division multiplexer 130 closes described first
After becoming signal and described PON signal fused, generate the second composite signal, by described second composite signal by the 3rd outfan
133 send.
Further, described first wave division multiplexer 120 and/or described second wavelength division multiplexer 130 can be CWDM
(Coarse Wavelength Division Multiplexer, coarse wavelength division multiplexer device) or DWDM (Dense
Wavelength Division Multiplexer, dense wave division multiplexer).
CWDM utilizes optical multiplexer to be transmitted with to simple optical fiber by the optical multiplexed signal of different wave length, in the reception of link
End, is decomposed into the signal of different wave length, is connected to receive accordingly equipment by optical demultiplexer by the mixed signal in optical fiber,
CWDM has the advantage of broader wavelength interval and low cost, and wherein, the standard wave length that industry is current is spaced apart 20nm.
DWDM refers in the optical fiber specified, and multiplexes the tight spectrum spacing of single fiber carrier, in order to profit
By the transmission performance that can reach, such as, minimize dispersion or the decay of degree.In this way, at given letter
Under breath transmission capacity, it is possible to reduce the total quantity of required optical fiber.
In the present embodiment, described wavelength shifter 110 is by up for the OLT received by described first input end 111
Signal is converted to the OLT upward signal of preset wavelength, and by described first outfan 112 output to described first wavelength-division multiplex
Described 3rd input 122 of device 120, described first wave division multiplexer 120 by the OLT upward signal of described preset wavelength and
Video signal/OLT the upward signal received by described second input 121 merges generation the first composite signal, and passes through
Described second outfan 123 output is to the four-input terminal 131 of described second wavelength division multiplexer 130, described second wavelength-division multiplex
Device 130, by after the first composite signal and the described PON signal fused that received by described 5th input 132, generates second
Composite signal, is sent described second composite signal by the 3rd outfan 133.
The local side apparatus 100 that the embodiment of the present invention provides, by using first wave division multiplexer 120 by described preset wavelength
OLT upward signal and video signal/OLT upward signal merge and generate the first composite signal, and use the second wavelength-division multiplex
Described first composite signal and PON signal fused are generated the second composite signal by device 130, and are sent to user terminal so that
Have only to use the described local side apparatus 100 just can be in the case of not changing the network that current operator is laid, the most in fact
The existing integration of three networks.Further, owing to wavelength shifter 110, first wave division multiplexer 120 and the second wavelength division multiplexer 130 are collected
Become in an equipment, improve the stability of equipment, reliability and homogeneity of product, reduce equipment volume.
Fig. 2 shows a kind of local side apparatus 100 structured flowchart that second embodiment of the invention provides.The present embodiment provides
A kind of local side apparatus 100 also includes image intensifer 150, institute relative to a upper embodiment, the local side apparatus 100 that the present embodiment provides
Stating image intensifer 150 and be provided with the 7th input 151 and the 5th outfan 152, described 7th input 151 is with described first
Second outfan 123 of wavelength division multiplexer 120 couples, the of described 5th outfan 152 and described second wavelength division multiplexer 130
Four-input terminal 131 couples.
Image intensifer 150, is a kind of sub-system products being amplified optical signal, further, in the present embodiment, institute
Stating image intensifer 150 is fiber amplifier, and described fiber amplifier is miniaturization, integrated fiber amplifier, it is possible to further
Reduce the volume of described local side apparatus 100.
It is understood that wavelength shifter 110, first wave division multiplexer 120 and the second wavelength-division in the present embodiment
Multiplexer 130 is identical with a upper embodiment, the most just repeats no more.
In the present embodiment, described wavelength shifter 110 is by up for the OLT received by described first input end 111
Signal is converted to the OLT upward signal of preset wavelength, and by described first outfan 112 output to described first wavelength-division multiplex
Described 3rd input 122 of device 120, described first wave division multiplexer 120 by the OLT upward signal of described preset wavelength and
Video signal/OLT the upward signal received by described second input 121 merges generation the first composite signal, and passes through
Described second outfan 123 output is to the 7th input 151 of described image intensifer 150, and described image intensifer 150 is by described the
After the signal intensity of one composite signal amplifies, by the 5th outfan 152 output to the 4th of described second wavelength division multiplexer 130
Input 131, described second wavelength division multiplexer 130 will amplify after the first composite signal and by described 5th input
After the 132 described PON signal fused received, generate the second composite signal, by described second composite signal by the 3rd outfan
133 send.
The local side apparatus 100 that the embodiment of the present invention provides, in addition to can realizing the effect that first embodiment can realize,
Owing to have employed image intensifer 150, the signal being transmitted through from central office is carried out the amplification of signal intensity in post synthesis so that
The loss being likely to be due to remote optical fiber causes weakening of signal, is strengthened herein, is more beneficial for follow-up at the second ripple
Division multiplexer 130 merges with PON signal so that the signal after the integration of three networks becomes apparent from, and owing to have employed light
Fiber amplifier, reduces the volume of described local side apparatus 100 further.
Fig. 3 shows a kind of local side apparatus 100 structured flowchart that third embodiment of the invention provides.The embodiment of the present invention carries
Having supplied a kind of local side apparatus 100, described equipment includes: wavelength shifter 110, first wave division multiplexer 120, beam splitter 140 with
And multiple second wavelength division multiplexer 130.
Beam splitter 140 is a kind of passive device, and also known as optical branching device, they need not external energy, as long as there being input light
?.Beam splitter 140 is made up of incident and exit slit, reflecting mirror and dispersion element, and its effect is required resonance to be inhaled
Take-up is separated.The critical component of beam splitter 140 is dispersion element.In the present embodiment, described beam splitter 140 is provided with
Six inputs 141 and multiple 4th outfans 142.Described beam splitter 140 couples with described first wave division multiplexer 120, enters one
Step, the 6th input 141 of described beam splitter 140 couples with the second outfan 123 of described first wave division multiplexer 120,
For receiving described first composite signal by described 6th input 141.Described beam splitter 140 is by described first composite signal
Resolve into multichannel the first composite signal, and multiple to corresponding described second wavelength-division by multiple described 4th outfan 142 outputs
Four-input terminal 131 with device 130.
Further, described beam splitter 140 is fiber splitter 140.Such as, fused biconical taper fiber splitter 140, described
Fused biconical taper fiber splitter 140 is lost low, good stability, and small volume.
It is understood that wavelength shifter 110 in the present embodiment, first wave division multiplexer the 120, second wavelength-division multiplex
Device 130 is all identical with first embodiment, and here is omitted, and each described second wavelength division multiplexer 130 is provided with described
Four-input terminal the 131, the 5th input 132 and the 3rd outfan 133.
In the present embodiment, described wavelength shifter 110 is by up for the OLT received by described first input end 111
Signal is converted to the OLT upward signal of preset wavelength, and by described first outfan 112 output to described first wavelength-division multiplex
Described 3rd input 122 of device 120, described first wave division multiplexer 120 by the OLT upward signal of described preset wavelength and
Video signal/OLT the upward signal received by described second input 121 merges generation the first composite signal, and passes through
Described second outfan 123 output is to the 6th input 141 of described beam splitter 140, and described beam splitter 140 closes described first
Signal decomposition is become to become multichannel the first composite signal, and by multiple described 4th outfan 142 outputs to corresponding described second
The four-input terminal 131 of wavelength division multiplexer 130.Each described second wavelength division multiplexer 130 is respectively by described first composite signal
And after the described PON signal fused by described 5th input 132 reception, generate the second composite signal, and difference respectively
Described second composite signal is sent to each user terminal by the 3rd outfan 133.
The local side apparatus 100 that the embodiment of the present invention provides, in addition to realizing the function that first embodiment can realize, by
In being also provided with beam splitter 140 so that the signal being transmitted through from central office, it is possible to only by a local side apparatus 100 just by more
Many user terminals use, and decrease the cost that user uses, it is possible to realize scale networking.
Fig. 4 shows a kind of local side apparatus 100 structured flowchart that fourth embodiment of the invention provides.The present embodiment provides
A kind of local side apparatus 100 is compared with a upper embodiment, and the local side apparatus 100 that the present embodiment provides also includes image intensifer 150,
Described image intensifer 150 is provided with the 7th input 151 and the 5th outfan 152, described 7th input 151 and described the
Second outfan 123 of one wavelength division multiplexer 120 couples, and described 5th outfan 152 inputs with the 6th of described beam splitter 140
End 141 coupling.
Image intensifer 150, is a kind of sub-system products being amplified optical signal, further, in the present embodiment, institute
Stating image intensifer 150 is fiber amplifier, and described fiber amplifier is miniaturization, integrated fiber amplifier, it is possible to further
Reduce the volume of described local side apparatus 100.
It is understood that wavelength shifter 110 in the present embodiment, first wave division multiplexer 120, beam splitter 140 and
Second wavelength division multiplexer 130 is identical with a upper embodiment, the most just repeats no more.
In the present embodiment, described wavelength shifter 110 is by up for the OLT received by described first input end 111
Signal is converted to the OLT upward signal of preset wavelength, and by described first outfan 112 output to described first wavelength-division multiplex
Described 3rd input 122 of device 120, described first wave division multiplexer 120 by the OLT upward signal of described preset wavelength and
Video signal/OLT the upward signal received by described second input 121 merges generation the first composite signal, and passes through
Described second outfan 123 output is to the 7th input 151 of described image intensifer 150, and described image intensifer 150 is by described the
After the signal intensity of one composite signal amplifies, by the 6th input of the 5th outfan 152 output to described beam splitter 140
141, described first composite signal is resolved into multichannel the first composite signal by described beam splitter 140, and by the multiple described 4th
Outfan 142 output is to the four-input terminal 131 of corresponding described second wavelength division multiplexer 130.Each described second wavelength-division is multiple
Respectively the first composite signal after described amplification and the described PON that received by described 5th input 132 are believed with device 130
After number merging, generate the second composite signal respectively, and respectively described second composite signal is sent to by the 3rd outfan 133
Each user terminal.
The local side apparatus 100 that the embodiment of the present invention provides, in addition to can realizing the effect that a upper embodiment can realize,
Owing to have employed image intensifer 150, the signal being transmitted through from central office is carried out the amplification of signal intensity in post synthesis so that
The loss being likely to be due to remote optical fiber causes weakening of signal, is strengthened herein, is more beneficial for follow-up at the second ripple
Division multiplexer 130 merges with PON signal so that the signal after the integration of three networks becomes apparent from, and owing to have employed light
Fiber amplifier, reduces the volume of described local side apparatus 100 further.
Fig. 5 shows a kind of three-network integration system 700 structured flowchart that fifth embodiment of the invention provides.The present embodiment carries
A kind of three-network integration system 700 of confession includes: local side apparatus 100, PON signal output apparatus the 200, the 3rd wavelength division multiplexer 300,
And central office equipment 400, described local side apparatus 100 respectively with described PON signal output apparatus 200 and described 3rd wavelength-division
Multiplexer 300 connects.
Described central office equipment 400 is for sending after video signal/OLT upward signal and the synthesis of OLT upward signal
Composite signal.
Described 3rd wavelength division multiplexer 300 is up for the composite signal received decomposites described video signal/OLT
Signal and described OLT upward signal.
Further, the wavelength of described video signal/OLT upward signal is 1550nm.
Described PON signal output apparatus 200 for being sent to described local side apparatus 100 by PON signal.
Described local side apparatus 100 is for receiving described PON signal, described video signal/OLT upward signal and institute respectively
State OLT upward signal, and described PON signal, described video signal/OLT upward signal and described OLT upward signal are merged
Rear formation the second composite signal, and send.
There is provided it is understood that described local side apparatus 100 can include but are not limited to each embodiment above-mentioned
Local side apparatus 100.
Further, described system also includes subscriber terminal equipment 600, described local side apparatus 100 and described user terminal
Equipment 600 connects
The three-network integration system 700 that the embodiment of the present invention provides, owing to have employed described local side apparatus 100 so that only needs
Described local side apparatus 100 is used just can simply to realize three in the case of not changing the network that current operator is laid
Net merges, and the composite signal decomposition that can be sent by described central office equipment 400 due to described 3rd wavelength division multiplexer 300
Go out described video signal/OLT upward signal and described OLT upward signal so that pass from central office toward described local side apparatus 100
Delivery signal has only to, by an optical fiber, greatly reduce the usage amount of optical fiber.
It should be noted that each embodiment in this specification all uses the mode gone forward one by one to describe, each embodiment weight
Point explanation is all the difference with other embodiments, and between each embodiment, identical similar part sees mutually.
It addition, each functional module in each embodiment of the present invention can integrate one independent portion of formation
Point, it is also possible to it is modules individualism, it is also possible to two or more modules are integrated to form an independent part.
It should be noted that in this article, the relational terms of such as first and second or the like is used merely to a reality
Body or operation separate with another entity or operating space, and deposit between not necessarily requiring or imply these entities or operating
Relation or order in any this reality.And, term " includes ", " comprising " or its any other variant are intended to
Comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Including process, method, article or the equipment of described key element there is also other identical element.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.It should also be noted that similar label and letter exist
Figure below represents similar terms, therefore, the most a certain Xiang Yi accompanying drawing is defined, is then not required in accompanying drawing subsequently
It is defined further and explains.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with scope of the claims.
Claims (10)
1. a local side apparatus, is applied to three-network integration system, it is characterised in that described equipment includes: wavelength shifter, first
Wavelength division multiplexer and the second wavelength division multiplexer, described wavelength shifter is provided with first input end and the first outfan, described
First wave division multiplexer is provided with the second input, the 3rd input and the second outfan, and described second wavelength division multiplexer is arranged
Having four-input terminal, the 5th input and the 3rd outfan, it is up that the first input end of described wavelength shifter is used for receiving OLT
Signal, the first outfan of described wavelength shifter couples with the 3rd input of described first wave division multiplexer, and described first
Second input of wavelength division multiplexer is used for receiving video signal/OLT upward signal, and the second of described first wave division multiplexer is defeated
Go out end couple with the four-input terminal of described second wavelength division multiplexer, described second wavelength division multiplexer the 5th input be used for
Receive PON signal；
Described wavelength shifter is for being converted to preset wavelength by the OLT upward signal received by described first input end
OLT upward signal, and described 3rd input of described first wave division multiplexer is exported by described first outfan；
Described first wave division multiplexer is for the OLT upward signal by described preset wavelength and by described second input termination
After the video signal received/OLT upward signal merges, generate the first composite signal, and exported by described second outfan
The four-input terminal of described second wavelength division multiplexer；
Described second wavelength division multiplexer is for by described first composite signal and by described in described 5th input reception
After PON signal fused, generate the second composite signal, described second composite signal is sent by the 3rd outfan.
Equipment the most according to claim 1, it is characterised in that the number of described second wavelength division multiplexer is multiple, each
Described second wavelength division multiplexer is provided with described four-input terminal, the 5th input and the 3rd outfan, and described equipment also wraps
Including beam splitter, described beam splitter is provided with the 6th input and multiple 4th outfans, the second of described first wave division multiplexer
Outfan couples with the 6th input of described beam splitter, multiple described 4th outfans respectively with the second corresponding wavelength-division multiplex
The four-input terminal coupling of device,
Described beam splitter is used for receiving described first composite signal by described 6th input, and by described first composite signal
Resolve into multichannel the first composite signal, and exported described second wavelength division multiplexer of correspondence by multiple described 4th outfans
Four-input terminal.
Equipment the most according to claim 2, it is characterised in that described equipment also includes image intensifer, described image intensifer
It is provided with the second outfan of the 7th input and the 5th outfan, described 7th input and described first wave division multiplexer
Coupling, described 5th outfan couples with the 6th input of described beam splitter.
Equipment the most according to claim 1, it is characterised in that described equipment also includes image intensifer, described image intensifer
It is provided with the second outfan of the 7th input and the 5th outfan, described 7th input and described first wave division multiplexer
Coupling, described 5th outfan couples with the four-input terminal of described second wavelength division multiplexer.
5. according to the equipment according to any one of claim 3 or 4, it is characterised in that described image intensifer is fiber amplifier.
6. according to the equipment according to any one of Claims 2 or 3, it is characterised in that described beam splitter is fiber splitter.
Equipment the most according to any one of claim 1 to 4, it is characterised in that described first wave division multiplexer and/or institute
Stating the second wavelength division multiplexer is dense wave division multiplexer.
8. a three-network integration system, it is characterised in that described system includes: the office as according to any one of claim 1 to 7
End equipment, PON signal output apparatus, the 3rd wavelength division multiplexer and central office equipment, described local side apparatus is respectively with described
PON signal output apparatus and described 3rd wavelength division multiplexer connect,
Described central office equipment is for sending the synthesis letter after video signal/OLT upward signal and OLT upward signal being synthesized
Number；
Described 3rd wavelength division multiplexer for the composite signal received decomposited described video signal/OLT upward signal with
And described OLT upward signal；
Described PON signal output apparatus is for being sent to described local side apparatus by PON signal；
Described local side apparatus is for receiving described PON signal, described video signal/OLT upward signal and described OLT respectively
Row signal, and formed after the fusion of described PON signal, described video signal/OLT upward signal and described OLT upward signal
Second composite signal, and send.
System the most according to claim 8, it is characterised in that the wavelength of described video signal/OLT upward signal is
1550nm。
System the most according to claim 8, it is characterised in that described system also includes subscriber terminal equipment, described local side
Equipment is connected with described subscriber terminal equipment.
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| CN206181038U (en) * | 2016-11-10 | 2017-05-17 | 成都必合科技有限公司 | Local side equipment and three nets fusion system |
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| CN102271020A (en) * | 2011-07-25 | 2011-12-07 | 深圳朗光科技有限公司 | OLT (Optical Line Terminal) link module and passive optical network |
| US20140270774A1 (en) * | 2013-03-15 | 2014-09-18 | Cox Communications, Inc. | Systems and Methods of Hybrid DWDM Aggregation and Extension for Time Division Multiplexing Passive Optical Networks |
| CN103763161A (en) * | 2013-10-21 | 2014-04-30 | 华中科技大学 | Tri-network integration access module and control method thereof |
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