CN207200901U - A kind of optical network communication equipment and system - Google Patents
A kind of optical network communication equipment and system Download PDFInfo
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- CN207200901U CN207200901U CN201720301265.4U CN201720301265U CN207200901U CN 207200901 U CN207200901 U CN 207200901U CN 201720301265 U CN201720301265 U CN 201720301265U CN 207200901 U CN207200901 U CN 207200901U
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Abstract
The utility model provides a kind of optical network communication equipment and system, including OLT Switching Modules, at least one optical network interface and at least one Medium Dependent Interface；The outside optical network unit of the corresponding connection one of each optical network interface is simultaneously connected with the OLT Switching Modules, the OLT Switching Modules connect at least one ethernet terminal of outside first, each corresponding first ethernet terminal of the Medium Dependent Interface by least one Medium Dependent Interface.The utility model embodiment by provide it is a kind of be integrated in one and set while possess optical network communication equipment and the system including the equipment of optical-fiber network access and Ethernet exchanging function, the network topology structure of existing Ethernet passive optical network can effectively be simplified, the unified management to OLT Switching Modules and ethernet switching module can be realized simultaneously, it is easy to accomplish and be widely popularized.
Description
Technical field
The utility model embodiment belongs to technical field of optical network communication, more particularly to a kind of optical network communication equipment and is
System.
Background technology
With the continuous development of optical network communication technology, Ethernet passive optical network progresses into cell, market, office building
Deng place, it is widely used in the security device, intelligent TV set, PC (personal computer, personal computer) of building eventually
The network service of the various network equipments such as end, great convenience is brought for the production and life of people.
However, Ethernet passive optical network framework common at present is based primarily upon optical line terminal (OLT, optical
Line terminal) and management type Ethernet switch realize, the various network equipments first by optical network unit (ONU,
Optical Network Unit) optical line terminal is connected to, then optical line terminal is connected to by optical network unit, then by light
Line terminal is connected to Ethernet switch, is finally connected to control data corporation by Ethernet switch, and optical link is whole
End and management type Ethernet switch manage each via different webmasters, and network topology structure is complicated and without unified net
Pipe, it has not been convenient to manage concentratedly.
Utility model content
The utility model embodiment provides a kind of optical network communication equipment and system, it is intended to it is passive to solve existing Ethernet
The network topology structure of optical-fiber network framework is complicated and without unified webmaster, it has not been convenient to the problem of managing concentratedly.
On the one hand the utility model embodiment provides a kind of optical network communication equipment, it includes the optical network communication equipment
Including OLT Switching Modules, at least one optical network interface and at least one Medium Dependent Interface；
The outside optical network unit of the corresponding connection one of each optical network interface simultaneously connects with the OLT Switching Modules
Connect, the OLT Switching Modules connect at least one ethernet terminal of outside first by least one Medium Dependent Interface, each
Corresponding first ethernet terminal of the Medium Dependent Interface；
The optical-fiber network optical signal that connected optical network unit is sent is converted to light by each optical network interface
Network telecommunication number is simultaneously sent to the OLT Switching Modules, the light that the OLT Switching Modules send each optical network interface
Network telecommunication number at least ethernet signal and is sent respectively to described at least one by least one Medium Dependent Interface all the way
One ethernet terminal；
At least one first ethernet terminal sends at least ethernet signal all the way, institute to the OLT Switching Modules
Stating OLT Switching Modules, ethernet signal is converted to optical-fiber network electric signal and is sent to each optical-fiber network all the way by described at least
Interface, the optical-fiber network electric signal that each optical network interface is received be converted to optical-fiber network optical signal and be sent to
Its optical network unit connected.
In one embodiment, the OLT Switching Modules include optical-fiber network control unit, at least one optical-fiber network conversion list
First, at least one optical-fiber network MAC port, at least one ethernet mac port, switching control unit, control administrative unit and extremely
A few Ethernet Transmit-Receive Unit, each optical network interface corresponds to an optical-fiber network converting unit, each described
Optical-fiber network converting unit corresponds to an optical-fiber network MAC port and an ethernet mac port, each ether
Net Transmit-Receive Unit corresponds to a first MDI port；
The corresponding optical network interface connection of each optical-fiber network converting unit, each optical-fiber network conversion are single
Member is connected by its corresponding optical-fiber network MAC port with the optical-fiber network control unit, and the optical-fiber network control unit passes through
Each ethernet mac port is connected with the switching control unit, it is described control administrative unit respectively with the optical-fiber network
Control unit connects with the switching control unit, and the switching control unit connects with each Ethernet Transmit-Receive Unit respectively
Connect, the corresponding Medium Dependent Interface connection of each Ethernet Transmit-Receive Unit；
The optical-fiber network electric signal that each optical-fiber network converting unit is received is converted into parallel optical-fiber network MAC
Signal is simultaneously sent to the optical-fiber network control unit by its corresponding optical-fiber network MAC port, and the optical-fiber network control unit will
The parallel optical-fiber network MAC signals that each optical-fiber network converting unit is sent be converted into ethernet mac signal and by with it is every
Ethernet mac port corresponding to the individual optical-fiber network converting unit is sent to the switching control unit, described to exchange control list
The ethernet mac signal that member is received is converted into multichannel ethernet mac signal and is sent respectively to each Ethernet
Transmit-Receive Unit, the ethernet mac signal that each Ethernet Transmit-Receive Unit is received are converted to ethernet signal simultaneously
Corresponding first ethernet terminal is sent to by corresponding Medium Dependent Interface, the control administrative unit is respectively to the light
The working condition of network control unit and the switching control unit is coordinated and managed and controlled；
It is concurrent that the ethernet signal that each Ethernet Transmit-Receive Unit is received is converted to ethernet mac signal
The switching control unit is given, the multichannel ethernet mac signal that the switching control unit is received is converted into and institute
State ethernet mac signal corresponding to ethernet mac port number and institute is sent to by each ethernet mac port respectively
State network control unit, the ethernet mac that the optical-fiber network control unit will be received by each ethernet mac port
Signal is converted to optical-fiber network MAC signals and is sent to by optical-fiber network MAC port corresponding with each ethernet mac port
Corresponding optical-fiber network converting unit, the parallel optical-fiber network MAC signals that each optical-fiber network converting unit is received
It is converted into serial optical-fiber network electric signal and is sent to its corresponding optical network interface.
In one embodiment, the optical-fiber network control unit is OLT chips or optical-fiber network kernel, and the optical-fiber network is changed
Unit is optical-fiber network deserializer, and the switching control unit is Ethernet switching chip or Ethernet exchanging kernel, described
Ethernet Transmit-Receive Unit is ethernet transceiver.
In one embodiment, the optical network interface is PON optical ports.
In one embodiment, two optical network interfaces of optical network communication equipment and multiple Medium Dependent Interfaces.
In one embodiment, first ethernet terminal includes security device.
In one embodiment, the security device includes network video recorder, streaming media server or video decoding
Device.
On the other hand the utility model embodiment also provides a kind of optical network communication system, it includes above-mentioned optical-fiber network and led to
Believe equipment, the optical network unit and first ethernet terminal, each optical network unit with least one outside
Second ethernet terminal connects.
In one embodiment, second ethernet terminal includes video monitoring equipment.
In one embodiment, the video monitoring equipment includes gun type camera or ball video camera.
The utility model embodiment possesses optical-fiber network access and ether while being integrated in one and set by providing one kind
The optical network communication equipment of net function of exchange and the system including the equipment, it can effectively simplify existing Ethernet passive light
The network topology structure of network, while the unified management to OLT Switching Modules and ethernet switching module can be realized, it is easy to real
Now and it is widely popularized.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are some embodiments of the utility model,
For those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Other accompanying drawings.
Fig. 1 is the basic structure schematic diagram for the optical network communication equipment that one embodiment of the present utility model provides；
Fig. 2 is the concrete structure schematic diagram for the optical network communication equipment that one embodiment of the present utility model provides；
Fig. 3 is the structural representation for the optical network communication system that one embodiment of the present utility model provides.
Embodiment
In order that those skilled in the art more fully understand the utility model, it is real below in conjunction with the utility model
The accompanying drawing in example is applied, the technical scheme in the embodiment of the utility model is explicitly described, it is clear that described embodiment
It is the embodiment of the utility model part, rather than whole embodiments.Based on the embodiment in the utility model, this area
The every other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, should all belong to this practicality
Novel protected scope.
Term " comprising " and their any changes in specification and claims of the present utility model and above-mentioned accompanying drawing
Shape, it is intended that cover non-exclusive include.Such as process, method or system comprising series of steps or unit, product or
The step of equipment is not limited to list or unit, but alternatively also include the step of not listing or unit, or it is optional
Ground is also included for the intrinsic other steps of these processes, method, product or equipment or unit.In addition, term " first ", " the
Two " and " the 3rd " etc. are to be used to distinguish different objects, not for description particular order.
As shown in figure 1, one embodiment of the present utility model provides a kind of optical network communication equipment 100, it includes OLT friendships
Changing the mold block 10, at least one optical network interface and at least one MDI, (Medium Dependent Interface, medium are related
Interface) interface.
It is exemplary in Fig. 1 that two optical network interfaces and n Medium Dependent Interface are shown, it is expressed as the He of optical network interface 21
Optical network interface 22, Medium Dependent Interface 31, Medium Dependent Interface 32 ... and 3n, wherein, n >=1 and n is positive integer.In figure after each device
The ellipsis " ... " in face represents also multiple and is not shown with the device identical device.
Annexation in the optical network communication equipment 100 that the present embodiment is provided between each device is：
The outside optical network unit of the corresponding connection one of each optical network interface is simultaneously connected with OLT Switching Modules 10, in Fig. 1
Exemplary shows the connecting optical network unit 201 of optical network interface 21, the connecting optical network unit 202 of optical network interface 22 and light net
Network interface 21 and optical network interface 22 are connected with OLT Switching Modules 10；
OLT Switching Modules connect at least one ethernet terminal of outside first, each MDI by least one Medium Dependent Interface
Interface one the first ethernet terminal of corresponding connection, it is exemplary in Fig. 1 to show that OLT Switching Modules 10 are connected by Medium Dependent Interface 31
Connect the first ethernet terminal 301, the first ethernet terminal 302 connected by Medium Dependent Interface 32 ..., connected by Medium Dependent Interface 3n
First ethernet terminal 30n.
In a particular application, optical network interface is specifically as follows PON optical ports, and the first ethernet terminal can specifically include net
Network video cassette recorder (NVR, Network Video Recorder), streaming media server (SMS, Streaming media
) or the security device such as Video Decoder (video decoder) server.
The operation principle of each device is in the optical network communication equipment 100 that the present embodiment is provided：
The optical-fiber network optical signal that connected optical network unit is sent is converted to optical-fiber network by each optical network interface
Electric signal is simultaneously sent to OLT Switching Modules, the optical-fiber network electric signal at least one that OLT Switching Modules send each optical network interface
Road ethernet signal is simultaneously sent respectively at least one first ethernet terminal by least one Medium Dependent Interface；
At least one first ethernet terminal sends at least ethernet signal all the way, OLT Switching Modules to OLT Switching Modules
Will at least ethernet signal is converted to optical-fiber network electric signal and is sent to each optical network interface all the way, each optical network interface is equal
The optical-fiber network electric signal received is converted to optical-fiber network optical signal and is sent to connected optical network unit.
Each device in the optical network communication equipment that the present embodiment is provided can be combined closely by various integrated means
And the autonomous device for being integrally formed one while there is optical-fiber network conversion and Ethernet exchanging function is integrated in, to realize optical link
Terminal and the function of management type Ethernet switch are integrated, reduce volume and reduce wiring.
The present embodiment is set by providing a kind of optical network communication for being provided simultaneously with optical-fiber network access and Ethernet exchanging function
The standby and system including the equipment, it can effectively simplify the network topology structure of existing Ethernet passive optical network, simultaneously
The unified management to OLT Switching Modules and ethernet switching module can be realized, it is easy to accomplish and be widely popularized.
As shown in Fig. 2 in one embodiment of the present utility model, the OLT Switching Modules in the embodiment corresponding to Fig. 1
10 specifically include optical-fiber network control unit 11, at least one optical-fiber network converting unit, at least one optical-fiber network MAC port, at least
One ethernet mac port, switching control unit 16, control administrative unit 17 and at least one Ethernet Transmit-Receive Unit, each
Optical network interface corresponds to an optical-fiber network converting unit, and each optical-fiber network converting unit corresponds to an optical-fiber network MAC port
With an ethernet mac port, each Ethernet Transmit-Receive Unit corresponds to a first MDI port.
In Fig. 2 it is exemplary show optical-fiber network converting unit 121 corresponding with optical network interface 21, with optical network interface 22
Corresponding optical-fiber network converting unit 122, optical-fiber network MAC port 131 corresponding with optical-fiber network converting unit 121 and ethernet mac
Port 141, optical-fiber network MAC port 132 corresponding with optical-fiber network converting unit 122 and ethernet mac port 142 and Ethernet
Medium Dependent Interface 31 corresponding to Transmit-Receive Unit 151, Medium Dependent Interface 32 corresponding with Ethernet Transmit-Receive Unit 152 ... and and Ethernet
Medium Dependent Interface 3n corresponding to Transmit-Receive Unit 15n.
In a particular application, optical-fiber network control unit is specifically as follows OLT chips or optical-fiber network kernel or passed through
Universal integrated circuit, such as CPU (Central Processing Unit, central processing unit), or pass through ASIC
(Application Specific Integrated Circuit, application specific integrated circuit) has corresponding function come what is realized
Device；Optical-fiber network converting unit is specifically as follows optical-fiber network deserializer (EPON Serdes)；Switching control unit specifically may be used
Think Ethernet switching chip or Ethernet exchanging kernel or by universal integrated circuit, such as CPU (Central
Processing Unit, central processing unit), or pass through ASIC (Application Specific Integrated
Circuit, application specific integrated circuit) come the device with corresponding function realized；Control administrative unit is specifically as follows control pipe
Manage chip or by universal integrated circuit, such as CPU (Central Processing Unit, central processing unit),
Or have by ASIC (Application Specific Integrated Circuit, application specific integrated circuit) come what is realized
The device of corresponding function；Ethernet Transmit-Receive Unit is specifically as follows ethernet transceiver.
The annexation of each device is in the OLT Switching Modules 10 that the present embodiment is provided：
The corresponding optical network interface connection of each optical-fiber network converting unit, it is exemplary in Fig. 2 that optical-fiber network is shown
Converting unit 121 is connected with optical network interface 21, and optical-fiber network converting unit 122 is connected with optical network interface 22；
Each optical-fiber network converting unit is connected by its corresponding optical-fiber network MAC port with optical-fiber network control unit, Fig. 2
In it is exemplary show that optical-fiber network converting unit 121 is connected by optical-fiber network MAC port 131 with optical-fiber network control unit 11, light
Network switching unit 122 is connected by optical-fiber network MAC port 132 with optical-fiber network control unit 11；
Optical-fiber network control unit 11 is connected by each ethernet mac port with switching control unit 16, exemplary in Fig. 2
Show that optical-fiber network control unit 11 passes through ethernet mac port 141 and ethernet mac port 142 and switching control unit 16
Connection；
Control administrative unit 17 is connected with optical-fiber network control unit 11 and switching control unit 16 respectively,
Switching control unit 16 is connected with each Ethernet Transmit-Receive Unit respectively, exemplary in Fig. 2 to show to exchange control
Unit 16 respectively with Ethernet Transmit-Receive Unit 151, Ethernet Transmit-Receive Unit 152 ... and Ethernet Transmit-Receive Unit 15n is connected；
The corresponding Medium Dependent Interface connection of each Ethernet Transmit-Receive Unit, it is exemplary in Fig. 2 to show that Ethernet is received and dispatched
Unit 151 is connected with Medium Dependent Interface 31, Ethernet Transmit-Receive Unit 152 is connected with Medium Dependent Interface 32 ..., Ethernet Transmit-Receive Unit
15n is connected with Medium Dependent Interface 3n.
The operation principle of each device is in the OLT Switching Modules 10 that the present embodiment is provided：
The optical-fiber network electric signal that each optical-fiber network converting unit is received is converted into parallel optical-fiber network MAC signals
And optical-fiber network control unit is sent to by its corresponding optical-fiber network MAC port, optical-fiber network control unit turns each optical-fiber network
Change unit transmission parallel optical-fiber network MAC signals be converted into ethernet mac signal and by with each optical-fiber network converting unit
Corresponding ethernet mac port is sent to switching control unit, and the ethernet mac signal that switching control unit is received turns
Change multichannel ethernet mac signal into and be sent respectively to each Ethernet Transmit-Receive Unit, each Ethernet Transmit-Receive Unit is by it
The ethernet mac signal received is converted to ethernet signal and is sent to corresponding first by corresponding Medium Dependent Interface
Ethernet terminal, control administrative unit carry out coordinating pipe to optical-fiber network control unit and the working condition of switching control unit respectively
Reason and control；
The ethernet signal that each Ethernet Transmit-Receive Unit is received is converted to ethernet mac signal and is sent to
Switching control unit, the multichannel ethernet mac signal that switching control unit is received are converted into and ethernet mac port number
Ethernet mac signal corresponding to amount is simultaneously sent to network control unit, optical-fiber network control by each ethernet mac port respectively
Unit by the ethernet mac signal received by each ethernet mac port be converted to optical-fiber network MAC signals and by with it is every
Optical-fiber network MAC port corresponding to individual ethernet mac port is sent to corresponding optical-fiber network converting unit, and each optical-fiber network conversion is single
The parallel optical-fiber network MAC signals that member is received are converted into serial optical-fiber network electric signal and are sent to its corresponding light
Network interface.
The present embodiment is by providing a kind of integrated form for incorporating optical line terminal and management type Ethernet switch function
OLT Switching Modules, it is possible to prevente effectively from carrying out net using different types of optical line terminal and management type Ethernet switch
The equipment of the problem of model mismatches, be incompatible between equipment caused by network communication and different manufacturers production needs different
Professional staff safeguarded, the problem of wasting maintenance cost, can effectively improve the stability of equipment and saving safeguard into
This.
As shown in figure 3, one embodiment of the present utility model also provides a kind of smooth network communication system, it is included described above
Optical network communication equipment 100, at least one optical network unit and at least one first ethernet terminal, each optical network unit are equal
It is connected with least one ethernet terminal of outside second.
As shown in figure 3, exemplary in the present embodiment show multiple optical network units 200, multiple first ethernet terminals
300 and multiple second ethernet terminals 400, the ellipsis " ... " in figure after each equipment represents to set with the equipment identical
It is standby large number of not specifically illustrated.
As shown in figure 3, in the present embodiment, the first ethernet terminal specifically includes network video recorder 301, Streaming Media clothes
Business device 302 and Video Decoder 303, the second ethernet terminal specifically includes gun type camera 401 and the grade of ball video camera 402 regards
Frequency monitoring device.
The present embodiment, can be effectively simple by providing a kind of optical network communication system based on above-mentioned optical network communication equipment
Change the attachment structure of traditional optical-fiber network framework, can be widely applied to need to connect the light of the building of multitude of video monitoring device
Network connection, equipment cost and wiring cost are saved.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of optical network communication equipment, it is characterised in that the optical network communication equipment includes OLT Switching Modules, at least one
Individual optical network interface and at least one Medium Dependent Interface；
The outside optical network unit of the corresponding connection one of each optical network interface is simultaneously connected, institute with the OLT Switching Modules
State OLT Switching Modules and at least one ethernet terminal of outside first is connected by least one Medium Dependent Interface, it is each described
Corresponding first ethernet terminal of Medium Dependent Interface；
The optical-fiber network optical signal that connected optical network unit is sent is converted to optical-fiber network by each optical network interface
Electric signal is simultaneously sent to the OLT Switching Modules, the optical-fiber network that the OLT Switching Modules send each optical network interface
Electric signal at least all the way ethernet signal and by least one Medium Dependent Interface be sent respectively to described at least one first with
Too network termination；
At least one first ethernet terminal sends at least ethernet signal all the way, the OLT to the OLT Switching Modules
Ethernet signal is converted to optical-fiber network electric signal and is sent to each optical network interface Switching Module all the way by described at least,
The optical-fiber network electric signal that each optical network interface is received is converted to optical-fiber network optical signal and is sent to be connected with it
The optical network unit connect.
2. optical network communication equipment as claimed in claim 1, it is characterised in that the OLT Switching Modules include optical-fiber network control
Unit processed, at least one optical-fiber network converting unit, at least one optical-fiber network MAC port, at least one ethernet mac port, hand over
Control unit, control administrative unit and at least one Ethernet Transmit-Receive Unit are changed, each optical network interface is corresponding one
The optical-fiber network converting unit, each optical-fiber network converting unit correspond to an optical-fiber network MAC port and an institute
Ethernet mac port is stated, each Ethernet Transmit-Receive Unit corresponds to a Medium Dependent Interface；
The corresponding optical network interface connection of each optical-fiber network converting unit, each optical-fiber network converting unit are equal
It is connected by its corresponding optical-fiber network MAC port with the optical-fiber network control unit, the optical-fiber network control unit passes through each
The ethernet mac port is connected with the switching control unit, and the control administrative unit controls with the optical-fiber network respectively
Unit is connected with the switching control unit, and the switching control unit is connected with each Ethernet Transmit-Receive Unit respectively,
The corresponding Medium Dependent Interface connection of each Ethernet Transmit-Receive Unit；
The optical-fiber network electric signal that each optical-fiber network converting unit is received is converted into parallel optical-fiber network MAC signals
And the optical-fiber network control unit is sent to by its corresponding optical-fiber network MAC port, the optical-fiber network control unit will be each
The parallel optical-fiber network MAC signals that the optical-fiber network converting unit is sent be converted into ethernet mac signal and by with each institute
State ethernet mac port corresponding to optical-fiber network converting unit and be sent to the switching control unit, the switching control unit will
Its ethernet mac signal received is converted into multichannel ethernet mac signal and is sent respectively to each Ethernet transmitting-receiving
Unit, the ethernet mac signal that each Ethernet Transmit-Receive Unit is received are converted to ethernet signal and passed through
Corresponding Medium Dependent Interface is sent to corresponding first ethernet terminal, and the control administrative unit is respectively to the optical-fiber network
Control unit and the working condition of the switching control unit are coordinated and managed and controlled；
The ethernet signal that each Ethernet Transmit-Receive Unit is received is converted to ethernet mac signal and is sent to
The switching control unit, the multichannel ethernet mac signal that the switching control unit is received be converted into it is described with
Ethernet mac signal and the net is sent to by each ethernet mac port respectively too corresponding to net MAC port quantity
Network control unit, the ethernet mac signal that the optical-fiber network control unit will be received by each ethernet mac port
Be converted to optical-fiber network MAC signals and by with each ethernet mac port corresponding to optical-fiber network MAC port be sent to it is corresponding
Optical-fiber network converting unit, the parallel optical-fiber network MAC signals conversion that each optical-fiber network converting unit is received
Into serial optical-fiber network electric signal and it is sent to its corresponding optical network interface.
3. optical network communication equipment as claimed in claim 2, it is characterised in that the optical-fiber network control unit is OLT chips
Or optical-fiber network kernel, the optical-fiber network converting unit are optical-fiber network deserializer, the switching control unit is handed over for Ethernet
Chip or Ethernet exchanging kernel are changed, the Ethernet Transmit-Receive Unit is ethernet transceiver.
4. optical network communication equipment as claimed in claim 1, it is characterised in that the optical network interface is PON optical ports.
5. optical network communication equipment as claimed in claim 1, it is characterised in that two optical network interfaces of optical network communication equipment
With multiple Medium Dependent Interfaces.
6. the optical network communication equipment as described in any one of Claims 1 to 5, it is characterised in that first ethernet terminal
Including security device.
7. optical network communication equipment as claimed in claim 6, it is characterised in that the security device includes network video
Machine, streaming media server or Video Decoder.
8. a kind of optical network communication system, it is characterised in that the smooth network communication system is included such as any one of claim 1~7
The optical network communication equipment, the optical network unit and first ethernet terminal, each optical network unit with
At least one ethernet terminal of outside second connection.
9. optical network communication system as claimed in claim 8, it is characterised in that second ethernet terminal is supervised including video
Control equipment.
10. optical network communication system as claimed in claim 9, it is characterised in that the video monitoring equipment is taken the photograph including gun-type
Camera or ball video camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720301265.4U CN207200901U (en) | 2017-03-24 | 2017-03-24 | A kind of optical network communication equipment and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720301265.4U CN207200901U (en) | 2017-03-24 | 2017-03-24 | A kind of optical network communication equipment and system |
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| Publication Number | Publication Date |
|---|---|
| CN207200901U true CN207200901U (en) | 2018-04-06 |
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| CN201720301265.4U Active CN207200901U (en) | 2017-03-24 | 2017-03-24 | A kind of optical network communication equipment and system |
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| CN (1) | CN207200901U (en) |
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