CN207099075U - A kind of OLT device - Google Patents
A kind of OLT device Download PDFInfo
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- CN207099075U CN207099075U CN201720766955.7U CN201720766955U CN207099075U CN 207099075 U CN207099075 U CN 207099075U CN 201720766955 U CN201720766955 U CN 201720766955U CN 207099075 U CN207099075 U CN 207099075U
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- olt device
- port
- demultiplexer
- signal
- image intensifer
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
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Abstract
A kind of OLT device 1, input port 2 and main control module 3 including communication connection, the OLT device 1 also includes demultiplexer 4, image intensifer 5, the network port 8 and Broadcast Port 9, the main control module 3 exports signal all the way and is connected to demultiplexer 4 by optical fiber, its signal all the way exported is connected to image intensifer 5 by optical fiber, the output end of the demultiplexer 4 is connected to the network port 8, and the output end of the image intensifer 5 is connected to Broadcast Port 9.The composite optical signal that the demultiplexer 4 inputs input port 2, resolve into wavelength 1490nm and 1550nm downstream signal and broadcast singal.After the image intensifer 5 amplifies broadcast singal gain, exported by Broadcast Port 9.Within broadcast singal transmission range will be by 20km, extend within 200km, the needs of remote subscriber can be met.
Description
Technical field
It the utility model is related to a kind of communication master device technical field, more particularly to a kind of OLT device.
Background technology
EPON (PON, Passive Optical Network) system is generally by the optical line terminal of office side
Optical network unit (ONU, Optical NetworkUnit)/light net of (OLT, Optical Line Terminal), user side
Network terminal (ONT, Optical Network Termination) and Optical Distribution Network (ODN, Optical
DistributionNetwork) form.Cable television is transmitted based on PON, digital broadcasting-television signal matter can be greatly improved
Amount, OLT device play important effect as the terminal between backbone network and user.In the prior art, optical signal is passing through
After crossing OLT, effective propagation path, for densely populated cities and towns, can be passed within 20 kms with OLT device quantity to make up
It is defeated apart from upper deficiency, without being affected greatly to economic benefit.For the residential block away from cities and towns, if reaching digital wide
The purpose of TV high quality transmission is broadcast, then needs substantial amounts of transferring equipment.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of OLT device, relatively low cost can be used, completed
Digital broadcast television long range, the transmission of high quality.
To reach above-mentioned purpose, the technical solution of the utility model is as follows：A kind of OLT device, including communication connection are defeated
Inbound port and main control module, the OLT device also include demultiplexer, image intensifer, the network port and Broadcast Port, the master
Signal is connected to demultiplexer to the output of control module by optical fiber all the way, and its signal all the way exported is connected to light amplification by optical fiber
Device, the output end of the demultiplexer are connected to the network port, and the output end of the image intensifer is connected to Broadcast Port.
As preferable, the OLT device is also included light beam signal decomposition at least a branch of varying strength optical signal
Optical splitter, the optical splitter is communicatively coupled between the image intensifer and the Broadcast Port.
As preferable, the OLT device also includes the optical signal of two beam different wave lengths being combined in same root optical fiber
Multiplexer, multiplexer communication is connected between the demultiplexer and the network port.
As preferable, described one output end of optical splitter is connected with an input end communication of the multiplexer.
As preferable, the input port includes telephone network, radio network, linking Internet port.
Compared with prior art, the beneficial effects of the utility model are：
1st, the OLT device can be in the case where not influenceing closely subscriber phone net, radio network, internet experience
Remote subscriber provides the digital broadcast television service of high quality.
2nd, required each effector is integrated in same body by the OLT device, saves the occupancy in local side space, while device
The OLT device of change is also convenient for later maintenance and the upgrading of function.
3rd, each device function unification of the OLT device, simple in construction, cost is low.
Brief description of the drawings
For the technical scheme in clearer explanation the utility model embodiment technology, embodiment technology will be retouched below
The required accompanying drawing used is briefly described in stating, it should be apparent that, drawings in the following description are only the utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of device schematic diagram of OLT device one embodiment of the utility model.
Wherein, 1-OLT equipment, 2- input ports, 3- main control modules, 4- demultiplexers, 5- image intensifers, 6- optical splitters,
7- multiplexers, the 8- network ports, 9- Broadcast Ports.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clear, complete description, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Embodiment based on this in practical, those of ordinary skill in the art are not on the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Embodiment
As illustrated, disclosing a kind of OLT device 1 in the present embodiment, include the input port 2 and master control mould of communication connection
Block 3, above-mentioned OLT device 1 also include demultiplexer 4, image intensifer 5, the network port 8 and Broadcast Port 9, above-mentioned main control module 3
Signal is connected to demultiplexer 4 by optical fiber all the way for output, and its signal all the way exported is connected to image intensifer 5 by optical fiber,
The output end of above-mentioned demultiplexer 4 is connected to the network port 8, and the output end of above-mentioned image intensifer 5 is connected to Broadcast Port 9.On
State the composite optical signal that demultiplexer 4 inputs input port 2, resolve into wavelength 1490nm and 1550nm downstream signal with it is wide
Broadcast signal.After above-mentioned image intensifer 5 amplifies broadcast singal gain, exported by Broadcast Port 9.Broadcast singal transmission range will be by
Within 20km, extend within 200km, the needs of remote subscriber can be met.
Above-mentioned OLT device 1 also includes the optical splitter 6 by light beam signal decomposition at least a branch of varying strength optical signal,
Above-mentioned optical splitter 6 is communicatively coupled between above-mentioned image intensifer 5 and above-mentioned Broadcast Port 9.Above-mentioned optical splitter 6 is connected with least one
Individual Broadcast Port 9, digital broadcast television is provided for different remote subscribers.
As preferable, above-mentioned OLT device 1 also includes the optical signal of two beam different wave lengths being combined in same root optical fiber
Multiplexer 7, the communication of above-mentioned multiplexer 7 is connected between above-mentioned demultiplexer 4 and the above-mentioned network port 8, with compound different ripples
Long optical signal.
Above-mentioned 6 one output ends of optical splitter are connected with an input end communication of above-mentioned multiplexer 7, by above-mentioned demultiplexer
The optical signal of wavelength separated is pressed in 4, is combined to together, is exported by the network port 8 again, to meet that closely user is wide with numeral
Broadcast the demand of TV.
The input port 2 includes telephone network, radio network, linking Internet port, realizes unification of three nets.
Current embodiment require that supplementary notes is：This OLT device is specific using device and image intensifer etc. by main control module, solution
Hardware configuration composition, fractional hardware has a participation of software program in the process of running, and the software program of auxiliary the machine operation is equal
For existing reproducible software program, the innovative point of the application is not formed.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with novel point.
Claims (5)
1. a kind of OLT device, include the input port and main control module of communication connection, it is characterised in that：The OLT device is also wrapped
Demultiplexer, image intensifer, the network port and Broadcast Port are included, signal is connected to by optical fiber all the way for the main control module output
Demultiplexer, its signal all the way exported are connected to image intensifer by optical fiber, and the output end of the demultiplexer is connected to net
Network port, the output end of the image intensifer are connected to Broadcast Port.
2. OLT device according to claim 1, it is characterised in that：The OLT device is also included light beam signal decomposition
Into the optical splitter of at least a branch of varying strength optical signal, the optical splitter is communicatively coupled to the image intensifer and the initiator
Between mouthful.
3. OLT device according to claim 2, it is characterised in that：The OLT device is also included two beam different wave lengths
Optical signal is combined to the multiplexer in same root optical fiber, and the multiplexer communication is connected to the demultiplexer and the network-side
Between mouthful.
4. OLT device according to claim 3, it is characterised in that：Described one output end of optical splitter and the multiplexer
One input end communication connection.
5. according to the OLT device described in claim 1, it is characterised in that the input port includes telephone network, radio network, interconnection
Net access interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720766955.7U CN207099075U (en) | 2017-06-28 | 2017-06-28 | A kind of OLT device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720766955.7U CN207099075U (en) | 2017-06-28 | 2017-06-28 | A kind of OLT device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207099075U true CN207099075U (en) | 2018-03-13 |
Family
ID=61554445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720766955.7U Active CN207099075U (en) | 2017-06-28 | 2017-06-28 | A kind of OLT device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207099075U (en) |
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2017
- 2017-06-28 CN CN201720766955.7U patent/CN207099075U/en active Active
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