CN109039659A - G.fast reverse power supply system, terminal device and local side apparatus - Google Patents
G.fast reverse power supply system, terminal device and local side apparatus Download PDFInfo
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- CN109039659A CN109039659A CN201810612427.5A CN201810612427A CN109039659A CN 109039659 A CN109039659 A CN 109039659A CN 201810612427 A CN201810612427 A CN 201810612427A CN 109039659 A CN109039659 A CN 109039659A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
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Abstract
The invention discloses a kind of G.fast reverse power supply systems, comprising: G.fast terminating circuit, terminal signaling coupling circuit, PSE power supply module, terminal signaling interface, G.fast local side circuit, local side signal coupling circuit, PD are by electric module drawn game end signal interface；The G.fast terminating circuit, terminal signaling coupling circuit and PSE power supply module are sequentially connected, and the terminal signaling interface is attempted by between the terminal signaling coupling circuit and PSE power supply module；The G.fast local side circuit, local side signal coupling circuit and PD are sequentially connected by electric module, and the local side signaling interface is attempted by the local side signal coupling circuit and PD by between electric module；The terminal telephone line interface of the terminal signaling interface is connected with the local side telephone line interface of the local side signaling interface by telephone wire.G.fast reverse power supply system of the present invention can realize the reverse power supply of G.fast technology based on telephone wire.
Description
Technical field
The present invention relates to the communications fields more particularly to a kind of G.fast reverse power supply system, terminal device and local side to set
It is standby.
Background technique
New user's digital line G.fast technology can use existing copper cable and realize 1Gbps transmission rate, while reversed confession
Power technology can allow operator without dedicated AC power source, more convenient progress equipment installation, to realize more efficient and lower
The network of cost is disposed.
Traditional power over Ethernet (PoE) is exactly to transmit power supply by ethernet line, that is, passes through ethernet line one end
Power supply unit (PSE) alternating current of 220V is converted to power receiving equipment of the DC power transmission to the ethernet line other end of 48V
(PD), the direct current of 48V is converted to the lower direct current of voltage again and supplies terminal device by PD, to realize ethernet line power supply
Purpose.And the reverse power supply technology based on telephone wire is different from traditional PoE technology, is to pass through phone by network-termination device
Line is powered to local side apparatus, 2014 the European Telecommunication Standard committee (ETSI) drafted based on telephone wire reverse power supply
Standard, to instruct the development with specification technique.
But current G.fast technology is in primary developing stage, and the G.fast reverse power supply technology based on telephone wire is not marked also
Standardization, there is presently no the concrete schemes for realizing G.fast technology reverse power supply.
Summary of the invention
The embodiment of the present invention proposes a kind of G.fast reverse power supply system, terminal device and local side apparatus, does not need
For the additional power supply circuit of G.fast Technology design, the reverse power supply of G.fast technology can be realized based on telephone wire.
The embodiment of the invention provides a kind of G.fast reverse power supply system, the G.fast reverse power supply system includes:
G.fast terminating circuit, terminal signaling coupling circuit, PSE power supply module, terminal signaling interface, G.fast local side circuit, local side
Signal coupling circuit, PD are by electric module drawn game end signal interface；
The G.fast terminating circuit has terminal input/output end port, and there are two the terminal signaling coupling circuit tools
Terminal couple input and two terminal coupled outputs, the PSE power supply module have cathode output end and cathode output end,
The terminal signaling interface has the first signaling interface and terminal telephone line interface；
Two terminals of the terminal input/output end port of the G.fast terminating circuit and the terminal signaling coupling circuit
Couple input connection, two terminal coupled outputs of the terminal signaling coupling circuit pass through the first connecting line and the respectively
Two connecting lines are connect with the cathode output end of the PSE power supply module and cathode output end, and the terminal signaling interface passes through the
One signaling interface is attempted by between first connecting line and the second connecting line；
The G.fast local side circuit has local side input/output end port, and there are two the local side signal coupling circuit tools
Local side couple input and two local side coupled outputs, the PD are had positive receiving end and cathode receiving end by electric module,
The local side signaling interface has second signal interface and local side telephone line interface；
Two local sides of the local side input/output end port of the G.fast local side circuit and the local side signal coupling circuit
Couple input connection, two local side coupled outputs of the local side signal coupling circuit pass through third connecting line and the respectively
For four connecting lines with the PD by the positive receiving end and cathode receiving end of electric module, the local side signaling interface passes through second signal
Interface is attempted by between the third connecting line and the 4th connecting line；
The local side telephone line interface of the terminal telephone line interface drawn game end signal interface of the terminal signaling interface passes through electricity
Talk about line connection.
Compared with prior art, G.fast reverse power supply system described in the embodiment of the present invention, by being set in client terminal
Set the terminal signaling coupling circuit connecting with G.fast terminating circuit, and the PSE being connected with the terminal signaling coupling circuit
Power supply module, in local side setting and the local side signal coupling circuit of G.fast local side circuit connection, and with the local side signal
The connected PD of coupling circuit will be attempted by the terminal signaling coupling circuit and PSE confession by electric module, and by telephone wire
Terminal signaling interface between electric module and the office being attempted by between the local side signal coupling circuit and the PD power receiving equipment
End signal interface is connected, so that PSE power supply module is powered and passed through to G.fast terminating circuit, terminal signaling coupling circuit
While telephone wire is powered to PD by electric module, local side signal coupling circuit and G.fast local side circuit, client terminal
The G.fast signal of G.fast signal and local side is also may be coupled on telephone wire, realizes the interaction of G.fast signal.The present invention
G.fast reverse power supply system described in embodiment can realize the reverse power supply of G.fast technology based on telephone wire, and realize G.fast
The communication of signal does not need as G.fast technology additional designs power supply circuit, and deployment is simple.
Further, the PSE power supply module and the PD are met IEEE802.3af consensus standard by the setting of electric module
Or IEEE802.3at consensus standard.
Further, the terminal signaling coupling circuit include terminal signaling coupling transformer and terminal capacitance；
For the terminal signaling coupling transformer tool there are two input terminal and two output ends, the terminal signaling couples transformation
Two input terminals of device are two terminal couple inputs of the terminal signaling coupling circuit, and the terminal signaling couples transformation
Two output ends of device are connect with first connecting line and the second connecting line respectively；The terminal capacitance is serially connected in described
On the connecting line that terminal signaling coupling transformer is connect with second connecting line；
The local side signal coupling circuit includes local side signal coupling transformer and local side capacitance；
For the local side signal coupling transformer tool there are two input terminal and two output ends, the local side signal couples transformation
Two input terminals of device are two terminal couple inputs of the local side signal coupling circuit, and the local side signal couples transformation
Two output ends of device are connect with the third connecting line and the 4th connecting line respectively；The local side capacitance is serially connected in described
On the connecting line that local side signal coupling transformer is connect with the 4th connecting line.
The terminal signaling coupling transformer and the local side signal coupling transformer are respectively to electric by G.fast terminal
The G.fast signal of road and G.fast local side circuit is coupled on telephone wire, the terminal capacitance and local side blocking electricity
Rong Ze is for preventing the supply voltage of the PSE power supply module from interfering to G.fast signal.
Further, the terminal signaling coupling circuit further include the two-way TVS pipe of terminal, and the two-way TVS pipe of terminal is simultaneously
It connects between two output ends of the terminal signaling coupling transformer；
Institute's local side signal coupling circuit further includes the two-way TVS pipe of local side, and the two-way TVS pipe of local side is attempted by the local side
Between two output ends of signal coupling transformer.
The two-way TVS pipe of the terminal and the two-way TVS pipe of local side are then respectively to protect the G.fast terminating circuit and institute
State G.fast local side circuit.
Further, the number of turns of the terminal signaling coupling transformer and the local side signal coupling transformer is 1:1, electricity
Sensibility reciprocal is greater than or equal to 12.5uH, and insertion loss is less than 3dB, the capacitor of the terminal capacitance and the local side capacitance
Value is 3300pF~5600pF.
Further, including terminal anti-surge circuit and local side anti-surge circuit；
The terminal anti-surge circuit includes the first anti-surge circuit and the second anti-surge circuit, the first Anti-surging electricity
Road is connected on first connecting line, and second anti-surge circuit is connected on second connecting line；
The local side surge circuit includes third anti-surge circuit and the 4th anti-surge circuit, the third anti-surge circuit
It is connected on the third connecting line, the 4th anti-surge circuit is connected on the 4th connecting line.
Further, first anti-surge circuit includes first resistor and the first inductance parallel with one another；Described second
Anti-surge circuit includes second resistance and the second inductance parallel with one another；The third anti-surge circuit includes parallel with one another
Three resistance and third inductance；4th anti-surge circuit includes the 4th resistance and the 4th inductance parallel with one another.
Further, the resistance value of the first resistor, second resistance, 3rd resistor and the 4th resistance be 180R~
330R；First inductance, the second inductance, third inductance and the 4th inductance inductance value be 33uH~56uH.
Another embodiment of the present invention provides a kind of terminal device, the terminal device includes: G.fast terminating circuit, end
End signal coupling circuit, PSE power supply module and terminal signaling interface；
The G.fast terminating circuit has terminal input/output end port, and there are two the terminal signaling coupling circuit tools
Terminal couple input and two terminal coupled outputs, the PSE power supply module have cathode output end and cathode output end,
The terminal signaling interface has the first signaling interface and terminal telephone line interface；
Two terminals of the terminal input/output end port of the G.fast terminating circuit and the terminal signaling coupling circuit
Couple input connection, two terminal coupled outputs of the terminal signaling coupling circuit pass through the first connecting line and the respectively
Two connecting lines are connect with the cathode output end of the PSE power supply module and cathode output end, and the terminal signaling interface passes through the
One signaling interface is attempted by between first connecting line and the second connecting line.
Another embodiment of the present invention provides a kind of local side apparatus, the local side apparatus includes: G.fast local side circuit, office
End signal coupling circuit, PD are by electric module drawn game end signal interface；
The G.fast local side circuit has local side input/output end port, and there are two the local side signal coupling circuit tools
Local side couple input and two local side coupled outputs, the PD are had positive receiving end and cathode receiving end by electric module,
The local side signaling interface has second signal interface and local side telephone line interface；
Two local sides of the local side input/output end port of the G.fast local side circuit and the local side signal coupling circuit
Couple input connection, two local side coupled outputs of the local side signal coupling circuit pass through third connecting line and the respectively
For four connecting lines with the PD by the positive receiving end and cathode receiving end of electric module, the local side signaling interface passes through second signal
Interface is attempted by between the third connecting line and the 4th connecting line.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the G.fast reverse power supply system that first embodiment of the invention provides.
Fig. 2 is the structural schematic diagram of terminal signaling coupling circuit described in first embodiment of the invention.
Fig. 3 is the structural schematic diagram of local side signal coupling circuit described in first embodiment of the invention.
Fig. 4 is the structural schematic diagram of PSE power supply module described in first embodiment of the invention.
Fig. 5 is the structural schematic diagram for the G.fast reverse power supply system that second embodiment of the invention provides.
Fig. 6 is a kind of structural schematic diagram for terminal device that third embodiment of the invention provides.
Fig. 7 is a kind of structural schematic diagram for local side apparatus that fourth embodiment of the invention provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of structural schematic diagram of the G.fast reverse power supply system provided for first embodiment of the invention.
The G.fast reverse power supply system includes G.fast terminating circuit 100, terminal signaling coupling circuit 200, PSE confession
Electric module 300, terminal signaling interface 400, G.fast local side circuit 100`, local side signal coupling circuit 200`, PD are by electric module
300` drawn game end signal interface 400`.
The G.fast terminating circuit 100 has terminal input/output end port；The terminal signaling coupling circuit 200 have
There are two terminal couple input and two terminal coupled outputs；The PSE power supply module 300 has electrode input end, bears
Pole input terminal, cathode output end and cathode output end；The terminal signaling interface 400 has the first signaling interface and terminal telephone
Line interface.
The two of the terminal input/output end port of the G.fast terminating circuit 100 and the terminal signaling coupling circuit 200
A terminal couple input connection；Two terminal coupled outputs of the terminal signaling coupling circuit 200 pass through first respectively
Connecting line a and the second connecting line b are connect with the cathode output end of the PSE power supply module 300 and cathode output end；The PSE
The electrode input end and negative input of power supply module 300 are for accessing alternating current；The terminal signaling interface 400 passes through the first letter
Number interface is attempted by between the first connecting line a and the second connecting line b.
The G.fast local side circuit 100` has local side input/output end port；The local side signal coupling circuit 200`
There are two local side couple input and two local side coupled outputs for tool；The PD by electric module 300` have positive receiving end and
Cathode receiving end；The local side signaling interface 400` has second signal interface and local side telephone line interface.
The local side input/output end port of the G.fast local side circuit 100` is with the local side signal coupling circuit 200`'s
Two local side couple input connections；Two local side coupled outputs of the local side signal coupling circuit 200` pass through respectively
Positive receiving end and cathode receiving end of the three connecting line c and the 4th connecting line d and PD by electric module 300`；The local side letter
Number interface 400` is attempted by between the third connecting line c and the 4th connecting line d by second signal interface.
The local side telephone line interface of the terminal telephone line interface drawn game end signal interface 400` of the terminal signaling interface 400
It is connected by telephone wire.
In the present embodiment, the PSE power supply module 300 and the PD are met by the setting of electric module 300`
IEEE802.3af consensus standard or IEEE802.3at consensus standard.
In the present embodiment, the 400 drawn game end signal interface 400` of terminal signaling interface is RJ11 interface.
G.fast reverse power supply system described in the present embodiment is connect by being arranged in client terminal with G.fast terminating circuit
Terminal signaling coupling circuit, and the PSE power supply module being connected with the terminal signaling coupling circuit, local side setting with
The local side signal coupling circuit of G.fast local side circuit connection, and the PD being connected with the local side signal coupling circuit is by electric mould
Block, and connect the terminal signaling being attempted by between the terminal signaling coupling circuit and the PSE power supply module by telephone wire
Mouth is connected with the local side signaling interface being attempted by between the local side signal coupling circuit and the PD power receiving equipment, so that
PSE power supply module is to G.fast terminating circuit, the power supply of terminal signaling coupling circuit and passes through telephone wire to PD by electric module, office
While end signal coupling circuit and G.fast local side circuit are powered, the G.fast signal of client terminal and the G.fast letter of local side
It number also may be coupled on telephone wire, realizes the interaction of G.fast signal.
Please refer to Fig. 2-3, the respectively knot of terminal signaling coupling circuit drawn game end signal coupling circuit described in the present embodiment
Structure schematic diagram.
As shown in Fig. 2, the terminal signaling coupling circuit 200 include terminal signaling coupling transformer T1, terminal blocking electricity
Hold the C1 and two-way TVS pipe D1 of terminal.
There are two input terminal and two output ends for the terminal signaling coupling transformer T1 tool.The terminal signaling coupling becomes
Two input terminals of depressor T1 are two terminal couple inputs of the terminal signaling coupling circuit 200, the terminal signaling
Two output ends of coupling transformer T1 are connect with the first connecting line a and the second connecting line b respectively.The terminal blocking electricity
Hold C1 to be serially connected on the connecting line that the terminal signaling coupling transformer T1 is connect with the second connecting line b.The terminal is double
It is attempted by two output ends of the terminal signaling coupling transformer T1 to TVS pipe D1 and is located at terminal signaling coupling and become
Between depressor T1 and the terminal capacitance C1.
As shown in figure 3, the local side signal coupling circuit 200` includes local side signal coupling transformer T2, local side blocking electricity
Hold the C2 and two-way TVS pipe D2 of local side.
There are two input terminal and two output ends for the local side signal coupling transformer T2 tool.The local side signal coupling becomes
Two input terminals of depressor T2 are two terminal couple inputs of the local side signal coupling circuit 200`, the local side signal
Two output ends of coupling transformer T2 are connect with the third connecting line c and the 4th connecting line d respectively.The local side blocking electricity
Hold C2 to be serially connected on the connecting line that the local side signal coupling transformer T2 is connect with the 4th connecting line d.The local side is double
It is attempted by two output ends of the local side signal coupling transformer T2 to TVS pipe D2 and is located at local side signal coupling and become
Between depressor T2 and the local side capacitance C2.
In the present embodiment, the number of turns of the terminal signaling coupling transformer T1 and the local side signal coupling transformer T2
For 1:1, inductance is greater than or equal to 12.5uH, and insertion loss is less than 3dB.The terminal capacitance C1 and the local side blocking
The capacitance of capacitor C2 is 3300pF~5600pF.
In the present embodiment, the terminal signaling coupling transformer T1 and the local side signal coupling transformer T2 are used respectively
The G.fast signal of G.fast terminating circuit 100 and G.fast local side circuit 100` to be coupled on telephone wire.The terminal
Capacitance C1 and the local side capacitance C2 are then used to prevent the supply voltage of the PSE power supply module 300 to G.fast
Signal interferes.The two-way TVS pipe D1 and two-way TVS pipe D2 of local side of terminal is then respectively used to protect the G.fast terminal
Circuit and the G.fast local side circuit.
Referring to Fig. 4, the PSE power supply module 300 wraps for the structural schematic diagram of PSE power supply module described in the present embodiment
AC-DC conversion circuit 301 and PD detection circuit 302 are included, the AC-DC conversion circuit 301 connects with the PD detection circuit 302
It connects.The PD detection circuit 302 to detect the local side apparatus of access terminal signaling interface 400 with the presence or absence of PD by electric module,
Direct current supply PD is converted to by electric mould to decide whether to control the AC-DC conversion circuit 301 according to testing result for alternating current
Block.
In the present embodiment, the electrode input end of the PSE power supply module 300 and negative input are electrically connected with city, with
Conversion is carried out to alternating current by the AC-DC conversion circuit 301 and supplies the terminal signaling coupling circuit 200 and described
G.fast terminating circuit 100.It is described when the PSE power supply module 300 detects in local side apparatus that there are PD by electric module 300`
The AC conversion of 220V is then corresponding by the power demand of electric module 300` according to the PD by AC-DC conversion circuit 301
Direct current supplies the PD by electric module 300` by telephone wire, then is given local side signal coupling electricity by electric module 300` by PD
Road 200` and G.fast local side circuit 100` power supply, to realize the reverse power supply based on telephone wire.Meanwhile the G.fast is whole
The G.fast signal of terminal circuit 100 passes through by terminal signaling coupling transformer T1, terminal capacitance C1 and the two-way TVS pipe of terminal
The terminal signaling coupling circuit 200 of D1 composition are coupled on the telephone wire connecting with the terminal signaling interface 400, to be transmitted to
The G.fast local side circuit 100`；And the G.fast signal of the G.fast local side circuit 100` also can be by by local side signal
The local side signal coupling circuit 200` of coupling transformer T2, local side capacitance C2 and the two-way TVS pipe D2 composition of local side is coupled to
On the telephone wire being connect with the local side signaling interface 400`, to be transmitted in the G.fast terminating circuit 100, complete
G.fast signal processing realizes the communication of G.fast signal.
Compared with prior art, G.fast reverse power supply system described in the present embodiment, by client terminal setting with
The terminal signaling coupling circuit of G.fast terminating circuit connection, and the PSE power supply being connected with the terminal signaling coupling circuit
Module is coupled in the local side signal coupling circuit of local side setting and G.fast local side circuit connection, and with the local side signal
The connected PD of circuit will be attempted by the terminal signaling coupling circuit and PSE power supply mould by electric module, and by telephone wire
Terminal signaling interface between block and the local side being attempted by between the local side signal coupling circuit and the PD power receiving equipment are believed
Number interface is connected, so that PSE power supply module is powered and pass through phone to G.fast terminating circuit, terminal signaling coupling circuit
While line is powered to the PD by electric module, the local side signal coupling circuit and the G.fast local side circuit, client is whole
The G.fast signal at end and the G.fast signal of local side are also may be coupled on telephone wire, realize the interaction of G.fast signal.I.e.
G.fast reverse power supply system described in the embodiment of the present invention can realize the reverse power supply of G.fast technology based on telephone wire, and realize
The communication of G.fast signal does not need as G.fast technology additional designs power supply circuit, and deployment is simple.
Please refer to the structural schematic diagram that Fig. 5 is the G.fast reverse power supply system that second embodiment of the invention provides.This reality
The difference for applying example and first embodiment is:
The G.fast reverse power supply system further includes terminal anti-surge circuit 500 and local side anti-surge circuit 500`.
The terminal anti-surge circuit 500 includes the first anti-surge circuit 501 and the second anti-surge circuit 502.Described
One anti-surge circuit 501 is connected on the first connecting line a, and second anti-surge circuit 502 is connected on described second and connects
On wiring b.Wherein, first anti-surge circuit 501 includes first resistor R1 parallel with one another and the first inductance L1；Described
Two anti-surge circuit 501` include second resistance R2 and the second inductance L2 parallel with one another.
The local side surge circuit 500` includes third anti-surge circuit 501` and the 4th anti-surge circuit 502`, and described
Three anti-surge circuit 501` are connected on the third connecting line c, and the 4th anti-surge circuit 502` is connected on the described 4th
On connecting line b.Wherein, the third anti-surge circuit 501` includes 3rd resistor R3 and third inductance L3 parallel with one another；Institute
Stating the 4th anti-surge circuit 502` includes the 4th resistance R4 and the 4th inductance L4 parallel with one another.
In the present embodiment, the resistance value of the first resistor R1, second resistance R2,3rd resistor R3 and the 4th resistance R4
For 180R~330R；The first inductance L1, the second inductance L2, third inductance L3 and the 4th inductance L4 inductance value be 33uH~
56uH。
The terminal anti-surge circuit 500 and the local side anti-surge circuit 500` are for inhibiting Conduction Interference and surge anti-
Shield, to guarantee that the electric signal of the PSE power supply module 300 does not influence the quality of G.fas signal.
Referring to Fig. 6, the structural schematic diagram of the terminal device provided for third embodiment of the invention.
The terminal device includes G.fast terminating circuit 100, terminal signaling coupling circuit 200, PSE power supply module 300
With terminal signaling interface 400.
The G.fast terminating circuit 100 has terminal input/output end port；The terminal signaling coupling circuit 200 have
There are two terminal couple input and two terminal coupled outputs；The PSE power supply module 300 has cathode output end and bears
Pole output end；The terminal signaling interface 400 has the first signaling interface and terminal telephone line interface.
The two of the terminal input/output end port of the G.fast terminating circuit 100 and the terminal signaling coupling circuit 200
A terminal couple input connection；Two terminal coupled outputs of the terminal signaling coupling circuit 200 pass through first respectively
Connecting line a and the second connecting line b are connect with the cathode output end of the PSE power supply module 300 and cathode output end；The terminal
Signaling interface 400 is attempted by between first connecting line and the connection of the second connecting line by the first signaling interface.
In the present embodiment, the setting of the PSE power supply module 300 meet IEEE802.3af consensus standard or
IEEE802.3at consensus standard.
In the present embodiment, the terminal device further includes terminal anti-surge circuit 500.The terminal anti-surge circuit
500 include the first anti-surge circuit 501 and the second anti-surge circuit 502.First anti-surge circuit 501 is connected on described
On one connecting line a, second anti-surge circuit 502 is connected on the second connecting line b.Wherein, first Anti-surging
Circuit 501 includes first resistor R1 parallel with one another and the first inductance L1；Second anti-surge circuit 502 includes parallel with one another
Second resistance R2 and the second inductance L2.
Terminal device described in the present embodiment to by the terminal telephone line interface of the terminal signaling interface 400 and and its
The local side apparatus connection to match realizes the application deployment of G.fast technology to constitute G.fast reverse power supply system.
Please refer to the structural schematic diagram that Fig. 7 is the local side apparatus that fourth embodiment of the invention provides.
The local side apparatus includes G.fast local side circuit 100`, local side signal coupling circuit 200`, PD by electric module 300
` drawn game end signal interface 400`.
The G.fast local side circuit 100` has local side input/output end port；The local side signal coupling circuit 200`
There are two local side couple input and two local side coupled outputs for tool；The PD by electric module 300` have positive receiving end and
Cathode receiving end；The local side signaling interface 400` has second signal interface and local side telephone line interface.
The local side input/output end port of the G.fast local side circuit 100` is with the local side signal coupling circuit 200`'s
Two local side couple input connections；Two local side coupled outputs of the local side signal coupling circuit 200` pass through respectively
Positive receiving end and cathode receiving end of the three connecting line c and the 4th connecting line d and PD by electric module 300`, the local side letter
Number interface 400` is attempted by between the third connecting line and the 4th connecting line by second signal interface.
In the present embodiment, the PD by the setting of electric module 300` meet IEEE802.3af consensus standard or
IEEE802.3at consensus standard.
In the present embodiment, the local side apparatus further includes local side anti-surge circuit 500`.The local side anti-surge circuit
500` includes third anti-surge circuit 501` and the 4th anti-surge circuit 502`.The third anti-surge circuit 501` is connected on institute
It states on third connecting line c, the 4th anti-surge circuit 502` is connected on the 4th connecting line d.Wherein, the third is anti-
Surge circuit 501` includes 3rd resistor R3 and third inductance L3 parallel with one another；The 4th anti-surge circuit 502` includes phase
Mutually the 4th resistance R4 and the 4th inductance L4 in parallel.
Local side apparatus described in the present embodiment to by the local side signaling interface 400` telephone line interface and with its phase
Matched terminal device connection realizes the application deployment of G.fast technology to constitute G.fast reverse power supply system.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of G.fast reverse power supply system, which is characterized in that the G.fast reverse power supply system includes:
G.fast terminating circuit, terminal signaling coupling circuit, PSE power supply module, terminal signaling interface, G.fast local side circuit,
Local side signal coupling circuit, PD are by electric module drawn game end signal interface；
The G.fast terminating circuit has terminal input/output end port, and there are two terminals for the terminal signaling coupling circuit tool
Couple input and two terminal coupled outputs, the PSE power supply module has cathode output end and cathode output end, described
Terminal signaling interface has the first signaling interface and terminal telephone line interface；
The terminal input/output end port of the G.fast terminating circuit is coupled with two terminals of the terminal signaling coupling circuit
Input terminal connection, two terminal coupled outputs of the terminal signaling coupling circuit pass through the first connecting line and second respectively and connect
Wiring is connect with the cathode output end of the PSE power supply module and cathode output end, and the terminal signaling interface passes through the first letter
Number interface is attempted by between first connecting line and the second connecting line；
The G.fast local side circuit has local side input/output end port, and there are two local sides for the local side signal coupling circuit tool
Couple input and two local side coupled outputs, the PD is had positive receiving end and cathode receiving end by electric module, described
Local side signaling interface has second signal interface and local side telephone line interface；
The local side input/output end port of the G.fast local side circuit is coupled with two local sides of the local side signal coupling circuit
Input terminal connection, two local side coupled outputs of the local side signal coupling circuit pass through third connecting line and the 4th respectively and connect
With the PD by the positive receiving end and cathode receiving end of electric module, the local side signaling interface passes through second signal interface for wiring
It is attempted by between the third connecting line and the 4th connecting line；
The local side telephone line interface of the terminal telephone line interface drawn game end signal interface of the terminal signaling interface passes through telephone wire
Connection.
2. G.fast reverse power supply system according to claim 1, it is characterised in that:
The PSE power supply module and the PD are met IEEE802.3af consensus standard or IEEE802.3at by the setting of electric module
Consensus standard.
3. G.fast reverse power supply system according to claim 1, it is characterised in that:
The terminal signaling coupling circuit include terminal signaling coupling transformer and terminal capacitance；
The terminal signaling coupling transformer has there are two input terminal and two output ends, the terminal signaling coupling transformer
Two input terminals are two terminal couple inputs of the terminal signaling coupling circuit, the terminal signaling coupling transformer
Two output ends are connect with first connecting line and the second connecting line respectively；The terminal capacitance is serially connected in the terminal
On the connecting line that signal coupling transformer is connect with second connecting line；
The local side signal coupling circuit includes local side signal coupling transformer and local side capacitance；
The local side signal coupling transformer has there are two input terminal and two output ends, the local side signal coupling transformer
Two input terminals are two terminal couple inputs of the local side signal coupling circuit, the local side signal coupling transformer
Two output ends are connect with the third connecting line and the 4th connecting line respectively；The local side capacitance is serially connected in the local side
On the connecting line that signal coupling transformer is connect with the 4th connecting line.
4. G.fast reverse power supply system according to claim 3, it is characterised in that:
The terminal signaling coupling circuit further include the two-way TVS pipe of terminal, and the two-way TVS pipe of terminal is attempted by the terminal letter
Between two output ends of number coupling transformer；
Institute's local side signal coupling circuit further includes the two-way TVS pipe of local side, and the two-way TVS pipe of local side is attempted by the local side signal
Between two output ends of coupling transformer.
5. G.fast reverse power supply system according to claim 3, it is characterised in that: the terminal signaling coupling transformer
The number of turns with the local side signal coupling transformer is 1:1, and inductance is greater than or equal to 12.5uH, and insertion loss is less than 3dB, institute
The capacitance for stating terminal capacitance and local side capacitance is 3300pF~5600pF.
6. G.fast reverse power supply system according to any one of claims 1 to 5, it is characterised in that: including terminal wave resistance
Gush circuit and local side anti-surge circuit；
The terminal anti-surge circuit includes the first anti-surge circuit and the second anti-surge circuit, the first anti-surge circuit string
It is associated on first connecting line, second anti-surge circuit is connected on second connecting line；
The local side surge circuit includes third anti-surge circuit and the 4th anti-surge circuit, the third anti-surge circuit series connection
On the third connecting line, the 4th anti-surge circuit is connected on the 4th connecting line.
7. G.fast reverse power supply system according to claim 6, it is characterised in that: first anti-surge circuit includes
First resistor and the first inductance parallel with one another；Second anti-surge circuit includes second resistance and the second electricity parallel with one another
Sense；The third anti-surge circuit includes 3rd resistor and third inductance parallel with one another；4th anti-surge circuit includes
4th resistance parallel with one another and the 4th inductance.
8. G.fast reverse power supply system according to claim 7, it is characterised in that: the first resistor, second resistance,
3rd resistor and the resistance value of the 4th resistance are 180R~330R；First inductance, the second inductance, third inductance and the 4th electricity
The inductance value of sense is 33uH~56uH.
9. a kind of terminal device, which is characterized in that the terminal device includes: G.fast terminating circuit, terminal signaling coupling electricity
Road, PSE power supply module, terminal signaling interface；
The G.fast terminating circuit has terminal input/output end port, and there are two terminals for the terminal signaling coupling circuit tool
Couple input and two terminal coupled outputs, the PSE power supply module has cathode output end and cathode output end, described
Terminal signaling interface has the first signaling interface and terminal telephone line interface；
The terminal input/output end port of the G.fast terminating circuit is coupled with two terminals of the terminal signaling coupling circuit
Input terminal connection, two terminal coupled outputs of the terminal signaling coupling circuit pass through the first connecting line and second respectively and connect
Wiring is connect with the cathode output end of the PSE power supply module and cathode output end, and the terminal signaling interface passes through the first letter
Number interface is attempted by between first connecting line and the second connecting line.
10. a kind of local side apparatus, it is characterised in that: the local side apparatus includes: G.fast local side circuit, local side signal coupling electricity
Road, PD are by electric module drawn game end signal interface；
The G.fast local side circuit has local side input/output end port, and there are two local sides for the local side signal coupling circuit tool
Couple input and two local side coupled outputs, the PD is had positive receiving end and cathode receiving end by electric module, described
Local side signaling interface has third signaling interface and local side telephone line interface；
The local side input/output end port of the G.fast local side circuit is coupled with two local sides of the local side signal coupling circuit
Input terminal connection, two local side coupled outputs of the local side signal coupling circuit pass through third connecting line and the 4th respectively and connect
With the PD by the positive receiving end and cathode receiving end of electric module, the local side signaling interface passes through third signaling interface for wiring
It is attempted by between the third connecting line and the 4th connecting line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810612427.5A CN109039659B (en) | 2018-06-13 | 2018-06-13 | Fast reverse power supply system and local side equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810612427.5A CN109039659B (en) | 2018-06-13 | 2018-06-13 | Fast reverse power supply system and local side equipment |
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| CN109039659B CN109039659B (en) | 2021-06-04 |
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| CN201810612427.5A Active CN109039659B (en) | 2018-06-13 | 2018-06-13 | Fast reverse power supply system and local side equipment |
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| CN109039659B (en) | 2021-06-04 |
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