CN207460190U - A kind of GPON trunkings of internal battery system - Google Patents
A kind of GPON trunkings of internal battery system Download PDFInfo
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- CN207460190U CN207460190U CN201721431106.2U CN201721431106U CN207460190U CN 207460190 U CN207460190 U CN 207460190U CN 201721431106 U CN201721431106 U CN 201721431106U CN 207460190 U CN207460190 U CN 207460190U
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Abstract
The utility model discloses a kind of GPON trunkings of internal battery system, are arranged between OLT ends and ONU end, including：First signal path, second signal path and the power-supply system for the power supply of GPON equipment.The input terminal of first signal path is connected with the OLT ends, and the output terminal of first signal path is connected with the ONU end.The input terminal of the second signal path is connected with the ONU end, and the output terminal of the second signal path is connected with the OLT ends.Technical solutions of the utility model realize GPON networks at OLT ends to the transmission between ONU end, and guarantee light signal will not decay, while normal work of the realization under power down mode.
Description
Technical field
The utility model is related to trunking technical field, the GPON relayings of more particularly to a kind of internal battery system are set
It is standby.
Background technology
GPON networks have obtained substantial amounts of commercialization, but at some in special circumstances, GPON networks OLT (local side) arrives ONU
Distance between (user terminal) is too long, and the attenuation of optical fiber is too big, can not be directly connected to by optical fiber, in needing to place in centre
After equipment, the signal of transmission loss is recovered.Simultaneously if necessary to transmit GPON signals using other equipment, it is also desirable to
Again recover signal between OLT and ONU, and handled, since GPON is using the continuous 2.5Gbps signal transmissions of downlink, uplink is adopted
With burst 1.25Gbps, so can not be realized using common relaying technique.
Utility model content
The main purpose of the utility model is to propose a kind of GPON trunkings of internal battery system, it is intended to realize GPON
Network will not decay in OLT ends to the transmission between ONU end, guarantee light signal, while normal work of the realization under power down mode
Make.
To achieve the above object, the utility model proposes internal battery system GPON trunkings, be arranged on OLT ends
Between ONU end, including：First signal path, second signal path and the power-supply system for the power supply of GPON equipment.Described
The input terminal of one signal path is connected with the OLT ends, and the output terminal of first signal path is connected with the ONU end.Institute
The input terminal for stating second signal path is connected with the ONU end, and the output terminal of the second signal path connects with the OLT ends
It connects.
Preferably, first signal path includes：ONU optical modules receiving terminal, signal shaper, laser driving mould
Block, laser.The input terminal of the ONU optical modules receiving terminal is connected with the OLT ends, the ONU optical modules receiving terminal it is defeated
Outlet is connected with the input terminal of the signal shaper.The output terminal of the signal shaper and the laser drive module
Input terminal connects, and the output terminal of the laser drive module is connected with the input terminal of the laser, the laser it is defeated
Outlet is connected with the ONU end.
Preferably, the second signal path includes：Detector, transimpedance amplifier TIA, limiting amplifier LA, signal
Selecting module, CPU, ONU optical module transmitting terminal, 100MHz clocks, GE signal generators.The input terminal of the detector with it is described
ONU end connects, and the output terminal of the detector is connected with the input terminal of the transimpedance amplifier TIA.The mutual impedance amplification
Input terminal of the output terminal of device TIA respectively with the input terminal of the limiting amplifier LA and ONU optical module transmitting terminals is connected.It is described
The output terminal of limiting amplifier LA connects respectively with the input terminal of the transimpedance amplifier TIA and the input terminal of signal selection module
It connects, and output terminal of the input terminal of the limiting amplifier LA also with the 100MHz clocks is connected.The signal selection module
Output terminal be connected with the input terminal of the ONU optical modules transmitting terminal, and the input terminal of the signal selection module also respectively with
The output terminal of the CPU is connected with the output terminal of GE signal generators.The output terminal of the ONU optical modules transmitting terminal with it is described
OLT ends connect.
Preferably, the power-supply system includes power input interface, power supply changeover device, power supply selection output interface, charging
Controller, lithium iron battery.The power input interface is connected with the input terminal of the power supply changeover device, the power supply changeover device
The input terminal that output terminal selects output interface and the charge controller with the power supply respectively is connected, the charge controller
Output terminal is connected respectively with the lithium iron battery and power supply selection follower.
Preferably, an optical splitter is added between the trunking and the ONU end.
Preferably, the trunking adds a radio transmission apparatus with the OLT ends.
Compared with prior art, the beneficial effects of the utility model are：It solves GPON signals and arrives ONU end at OLT ends
Recover amplification, carrying out processing to GPON recovery signals makes it that can be transmitted in other equipment, merges, is solved in nothing with battery system
Can work in the case of electricity 4~6 it is small when.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to the structure shown in these attached drawings.
Fig. 1 is the functional block diagram of the utility model trunking；
Fig. 2 is the functional block diagram of the utility model power-supply system；
Fig. 3 is an embodiment block diagram of the utility model trunking；
Fig. 4 is another embodiment block diagram of the utility model trunking.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
A kind of GPON trunkings for internal battery system that the present embodiment proposes, are arranged between OLT ends and ONU end,
Including：First signal path, second signal path and the power-supply system for the power supply of GPON equipment.First signal path
Input terminal is connected with the OLT ends, and the output terminal of first signal path is connected with the ONU end.The secondary signal road
The input terminal in footpath is connected with the ONU end, and the output terminal of the second signal path is connected with the OLT ends.
It should be noted that the first signal path completes the signal transmission from OLT ends to ONU end, OLT ends are sent to ONU
The signal at end is the optical signal of normal 1490nm.First signal path includes：ONU optical modules receiving terminal, signal shaper swash
Light device drive module, laser.The input terminal of the ONU optical modules receiving terminal is connected with the OLT ends, the ONU optical modules
The output terminal of receiving terminal is connected with the input terminal of the signal shaper.The output terminal of the signal shaper and the laser
The input terminal connection of drive module, the output terminal of the laser drive module is connected with the input terminal of the laser, described
The output terminal of laser is connected with the ONU end.
ONU optical modules receiving terminal uses ONU optical modules commonly used in the prior art, receives the 1490nm's that OLT ends are sent
Optical signal, and convert thereof into electric signal and be sent to signal shaper, signal shaper carries out signal processing regeneration, removal is trembled
It is dynamic, so as to recover signal quality, laser drive module is sent the signal to, laser drive module is according to the signal received
Laser required voltage and electric current supply are completed, so as to fulfill modulation function.Laser turns the electric signal received again
The optical signal for being changed to 1490nm is sent to ONU end, so as to complete the signal transmission from OLT ends to ONU end.
It should be noted that second signal path is completed to be sent to OLT from ONU end to the signal transmission at OLT ends, ONU end
The signal at end is burst 1310nm signals.Second signal path includes：Detector, transimpedance amplifier TIA, limiting amplifier
LA, signal selection module, CPU, ONU optical module transmitting terminal, 100MHz clocks, GE signal generators.The input of the detector
End is connected with the ONU end, and the output terminal of the detector is connected with the input terminal of the transimpedance amplifier TIA.It is described mutual
The output terminal of impedance amplifier TIA respectively with the input terminal of the limiting amplifier LA and the input terminal of ONU optical module transmitting terminals
Connection.The output terminal of the limiting amplifier LA input terminal and signal selection module with the transimpedance amplifier TIA respectively
Input terminal connection, and output terminal of the input terminal of the limiting amplifier LA also with the 100MHz clocks is connected.The letter
The output terminal of number selecting module is connected with the input terminal of the ONU optical modules transmitting terminal, and the input of the signal selection module
The output terminal also respectively with the output terminal of the CPU and GE signal generators is held to be connected.The output of the ONU optical modules transmitting terminal
End is connected with the OLT ends.
Detector receives the burst 1310nm optical signals of ONU end transmission, and the optical signal is converted to electric signal and is sent
To transimpedance amplifier TIA.Transimpedance amplifier TIA is amplified received signal processing, but due to the letter of ONU end transmission
Number for burst, and signal amplitude is it is also possible to different, it is therefore desirable to provide reset signal, transimpedance amplifier TIA
Reset signal is provided by limiting amplifier LA.It should be noted that since the signal that ONU end is sent is burst, if mutual resistance
Anti- amplifier TIA does not receive the signal of ONU end transmission, and transimpedance amplifier TIA can generate LOS dropouts instruction letter
Number, and by respectively its be sent to signal selection module, CPU and ONU optical module transmitting terminals.
The transimpedance amplifier TIA received the signals sent are further amplified limiting amplifier LA, and will be after amplification
The too big signal of amplitude is limited, and the amplitude for making all signals is equally big.The same with transimpedance amplifier TIA, ONU end is sent
Signal amplitude it is also possible to different, so needing to provide reset signal for limiting amplifier LA.In the present embodiment, use
Reset signal of the 100Mhz clocks as limiting amplifier LA because when resetting, only influences the voltage value that prime signal leaves,
So not influencing by the quality of signal, therefore this method may be employed and avoid the external world that from can not realizing ONU without reset signal
Send the problem of signal recovers in end.Limiting amplifier LA generates one while 100Mhz reset clock signals are obtained simultaneously
Reset signal is sent to transimpedance amplifier TIA, and providing signal for transimpedance amplifier TIA resets, and the signal of recovery is sent out
It send to signal selection module.
Signal selection module carries out signal behavior, the signal after selection is sent to ONU optical modules according to the instruction of CPU
Transmitting terminal.ONU optical modules transmitting terminal is ONU optical modules commonly used in the prior art, and the electric signal received is converted into
The optical signal of 1310nm is sent to OLT ends.So as to complete the signal transmission from ONU end to OLT ends.
It should be noted that adding an optical splitter between trunking and ONU end, trunking can also increase with OLT ends
If radio transmission apparatus, CPU module mainly completes the control of signal selection module.As shown in figure 3, if trunking is used for OLT
To between optical splitter, then control signal selecting module selects the signal output that limiting amplifier LA is sent.If in as shown in figure 4,
It, since the signal that ONU end is sent is burst, cuts in and out between optical splitter for radio transmission apparatus after equipment,
When dropout LOS indication signals instruction ONU end has signal output, control signal selecting module selection limiting amplifier LA is sent
Signal output to ONU optical module transmitting terminals, when dropout LOS indication signals instruction ONU end does not have signal output, control
Signal selection module selects the signal output that GE signal generators generate to ONU optical module transmitting terminals.It should be noted that GE believes
Number for ONU end there is no signal output when, generate the signal of 1000Mbps, be sent to signal selection module, selecting module should
Signal is sent to ONU optical module transmitting terminals, so as to ensure that ONU optical module transmitting terminals are constantly in emission state.
Further, as shown in Fig. 2, power-supply system includes power input interface, power supply changeover device, power supply output is selected to connect
Mouth, charge controller, lithium iron battery.The power input interface is connected with the input terminal of the power supply changeover device, the power supply
The input terminal that the output terminal of converter selects output interface and the charge controller with the power supply respectively is connected, the charging
The output terminal of controller is connected respectively with the lithium iron battery and power supply selection follower.
Power input interface is connected with externally fed power supply, receive 220V and 48V power input, by lightning protection processing and
Power supply changeover device is sent to after filtering process.220V the and 48V power supplys received are converted into 12V power supplys by power supply changeover device,
It is respectively sent to power supply and selects defeated interface and charge controller.Charge controller receives the 12V power supplys of power supply changeover device transmission
Afterwards, charge to lithium iron battery, and monitor the electricity of lithium iron battery in real time, after lithium iron battery electricity is full of, just stops charging, prevent
Only overshoot.When lithium iron battery electricity is less than certain electricity, just lithium iron battery is controlled no longer to discharge.Meanwhile charge controller is also
The electricity of lithium iron battery can be sent to power supply selection output interface, in the case of external power outage, normally supplied for system
Electricity ensures the normal work of system.It should be noted that when external power supply normal power supply, power supply selection output interface selection
It is trunking system power supply by external power supply, when external power supply has a power failure, power supply selection output interface selection passes through iron lithium
Battery is trunking system power supply, so as to ensure that trunking system can also work normally 4 in the case where powering without the external world
~6 it is small when.
It these are only the preferred embodiment of the utility model, it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is directly or indirectly used in
Other related technical areas are equally included in the patent within the scope of the utility model.
Claims (6)
1. a kind of GPON trunkings of internal battery system, are arranged between OLT ends and ONU end, which is characterized in that including：
First signal path, second signal path and the power-supply system for the power supply of GPON equipment；The input terminal of first signal path
It is connected with the OLT ends, the output terminal of first signal path is connected with the ONU end；The second signal path it is defeated
Enter end to be connected with the ONU end, the output terminal of the second signal path is connected with the OLT ends.
2. the GPON trunkings of internal battery system as described in claim 1, which is characterized in that first signal path
Including：ONU optical modules receiving terminal, signal shaper, laser drive module, laser；The ONU optical modules receiving terminal it is defeated
Enter end to be connected with the OLT ends, the output terminal of the ONU optical modules receiving terminal is connected with the input terminal of the signal shaper；
The output terminal of the signal shaper is connected with the input terminal of the laser drive module, the laser drive module it is defeated
Outlet is connected with the input terminal of the laser, and the output terminal of the laser is connected with the ONU end.
3. the GPON trunkings of internal battery system as described in claim 1, which is characterized in that the second signal path
Including：Detector, transimpedance amplifier TIA, limiting amplifier LA, signal selection module, CPU, ONU optical module transmitting terminal,
100MHz clocks, GE signal generators；The input terminal of the detector is connected with the ONU end, the output terminal of the detector
It is connected with the input terminal of the transimpedance amplifier TIA；The output terminal of the transimpedance amplifier TIA is put respectively with the amplitude limit
The input terminal of big device LA is connected with the input terminal of ONU optical module transmitting terminals；The output terminal of the limiting amplifier LA respectively with institute
The input terminal of transimpedance amplifier TIA is stated to connect with the input terminal of signal selection module, and the input of the limiting amplifier LA
The output terminal also with the 100MHz clocks is held to be connected；The output terminal of the signal selection module emits with the ONU optical modules
End input terminal connection, and the input terminal of the signal selection module also respectively with the output terminal of the CPU and GE signal generations
The output terminal connection of device；The output terminal of the ONU optical modules transmitting terminal is connected with the OLT ends.
4. the GPON trunkings of internal battery system as described in claim 1, which is characterized in that the power-supply system includes
Power input interface, power supply changeover device, power supply selection output interface, charge controller, lithium iron battery；The power input interface
It is connected with the input terminal of the power supply changeover device, the output terminal of the power supply changeover device selects output interface with the power supply respectively
It is connected with the input terminal of the charge controller, the output terminal of the charge controller selects respectively with the lithium iron battery and power supply
Select follower connection.
5. the GPON trunkings of the internal battery system as described in Claims 1 to 4 is any, which is characterized in that the relaying
An optical splitter is added between equipment and the ONU end.
6. the GPON trunkings of internal battery system as claimed in claim 5, which is characterized in that the trunking and institute
It states OLT ends and adds a radio transmission apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721431106.2U CN207460190U (en) | 2017-10-31 | 2017-10-31 | A kind of GPON trunkings of internal battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721431106.2U CN207460190U (en) | 2017-10-31 | 2017-10-31 | A kind of GPON trunkings of internal battery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207460190U true CN207460190U (en) | 2018-06-05 |
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ID=62252995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721431106.2U Active CN207460190U (en) | 2017-10-31 | 2017-10-31 | A kind of GPON trunkings of internal battery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207460190U (en) |
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2017
- 2017-10-31 CN CN201721431106.2U patent/CN207460190U/en active Active
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