CN104041001B - A kind of numeral subscriber line local side device, terminal installation and reverse electric power system - Google Patents
A kind of numeral subscriber line local side device, terminal installation and reverse electric power system Download PDFInfo
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- CN104041001B CN104041001B CN201480000389.8A CN201480000389A CN104041001B CN 104041001 B CN104041001 B CN 104041001B CN 201480000389 A CN201480000389 A CN 201480000389A CN 104041001 B CN104041001 B CN 104041001B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/44—Arrangements for feeding power to a repeater along the transmission line
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/542—Systems for transmission via power distribution lines the information being in digital form
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/548—Systems for transmission via power distribution lines the power on the line being DC
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Abstract
The invention discloses a kind of numeral subscriber line local side device, terminal installation and reverse electric power system, to realize the object increasing reverse power supply distance.Described numeral subscriber line local side device, comprising: local side processing module, powered module, at least one road bureau end First Line hold the second line to drawn game end interface module to, at least one road bureau; Described local side First Line to described local side second line to one_to_one corresponding; Described local side processing module is connected with described local side interface module by described local side First Line pair; Described powered module and described local side First Line are to being connected; The right first end of described local side second line is with corresponding described local side First Line to connection, and right the second end of described local side second line is connected with described local side interface module; By make local side second line to local side First Line to transmitting d. c. voltage signal simultaneously, after being connected with end side, increase the transmission current that the line that is connected with end side is right, thus the reverse power supply distance of increase end side.
Description
Technical field
The present invention relates to communication technical field, espespecially a kind of numeral subscriber line local side device, terminal installation and reverse electric power system.
Background technology
Along with the high speed development of technique of internet and the swift and violent popularization of multimedia service, the demand of the network bandwidth is increasing, and cable broadband access is being registered one's residence to fiber entering household by twisted-pair feeder and developed.But in the transformation of the old community of part, can run into the realistic problem of fiber entering household difficulty, make optical fiber can only be routed near resident family entrance, last segment cable of registering one's residence also needs to use existing twisted-pair feeder resource.For this scene, prior art provides optical fiber to distributing point (FibertotheDistributionPoint, FTTDP) a solution that fiber/copper line moves down, FTTDP scheme is to roadside (FibertotheCurb based on traditional optical fiber, FTTC) scheme, optical fiber is moved down into curbside cabinet or community machine room further, remote digital subscriber line access multiplexer (DigitalSubscriberLineAccessMultiplexer placed by curbside cabinet or community machine room, DSLAM), then by DSLAM by twisted pair line connection to user's family.
Because FTTDP distance users is closer, at about 15m ~ 300m, therefore website quantity very huge (tens thousand of even hundreds thousand of websites).Due in FTTDP installation site, generally do not have ready-made civil power to take, even and if civil power can be adopted to carry out power supply to the device, due to the website enormous amount of FTTDP, this is for operator being a huge burden.Therefore, how solving a difficult problem for the problem Cheng Liao operator of equipment power-extracting, is also that FTTDP solution needs commercial huge obstacle.
Reverse power supply is the possibility solving FTTDP powerup issue, such as shown in Fig. 1: comprise local side apparatus 101, terminal equipment 102, reverse power supply receiving end (PoweredDevice, PD) 103, reverse power supply feeder ear (PowerSupplyEquipment, PSE) 104, and line is to 105.G.Fast is adopted between local side apparatus 101 and terminal equipment 102, also can be the Digital Subscriber Line such as VDSL2/ADSL2/2+ (DigitalSubscriberLine, DSL) technology oppositely powers feeder ear 104 at user side output dc voltage, by isolation/protection module 107, be coupled on twisted-pair feeder.The direct voltage that reverse power supply receiving end 103 passes through after isolation/protection module 107 is then isolated G.Fast by local side extracts, and inputs as power supply.Be coupled by isolation module between G.Fast and direct voltage.
Above-mentioned reverse power supply technique has following problem: only utilize single line to being reverse power supply+DSL, another line is to vacant; And oppositely the distance of power supply is limited.
Summary of the invention
The embodiment of the present invention provides a kind of numeral subscriber line local side device, terminal installation and reverse electric power system, in order to solve the little problem of the reverse power supply distance of Digital Subscriber Line.
First aspect, provides a kind of numeral subscriber line local side device, comprises local side processing module, powered module, at least one road bureau end First Line hold the second line to drawn game end interface module to, at least one road bureau; Described local side First Line to described local side second line to one_to_one corresponding;
Described local side processing module is connected with described local side interface module by described local side First Line pair; Described powered module and described local side First Line are to being connected; The right first end of described local side second line is with corresponding described local side First Line to connection, and right the second end of described local side second line is connected with described local side interface module;
Described local side interface module, for provide described local side First Line to described local side second line to the interface being connected end side device;
Described local side First Line pair, transmits next d. c. voltage signal for transmission of digital signals, receiving terminal side and receives the described local side second line d. c. voltage signal next to transmission;
Described local side second line pair, for the d. c. voltage signal that the transmission of receiving terminal side comes, is transferred to described local side First Line pair by this d. c. voltage signal;
Described local side processing module, for the treatment of the digital signal of described local side First Line to transmission;
Described powered module, for receiving each d. c. voltage signal of described local side First Line to transmission, powers according to the device that each d. c. voltage signal is local side side.
In conjunction with described first aspect, the first possible implementation of described first aspect is provided, in the first possible implementation described in described first aspect, also comprise local side first isolation module, described powered module by described local side first isolation module with described local side First Line to being connected;
Described local side first isolation module, for isolate described powered module and described local side First Line between digital signal, make described local side First Line to each d. c. voltage signal of transmission by the described powered module of rear arrival.
In conjunction with the first possible implementation described of described first aspect, the implementation that the second of described first aspect is possible is provided, in the implementation that described the second of described first aspect is possible, also comprise local side second isolation module, the right first end of described local side second line by described local side second isolation module with described local side First Line to being connected;
Described local side second isolation module, for isolate described local side second line pair and described local side First Line between digital signal, make described local side second line to the d. c. voltage signal received by the described local side First Line pair of rear arrival.
In conjunction with the implementation that described the second of described first aspect is possible, the third possible implementation of described first aspect is provided, in the third possible implementation described in described first aspect, also comprise local side break-make module, described local side second isolation module by described local side break-make module with described local side First Line to being connected;
Described local side break-make module, for control described local side second isolation module and described local side First Line between the break-make that is connected.
In conjunction with the third possible implementation described of described first aspect, 4th kind of possible implementation of described first aspect is provided, in the described 4th kind of possible implementation of described first aspect, described local side break-make module comprises at least two switches insulated from each other.
In conjunction with any one implementation in described first to fourth kind of possible implementation of described first aspect or described first aspect, 5th kind of possible implementation of described first aspect is provided, in the described 5th kind of possible implementation of described first aspect, described local side first isolation module at least comprises two inductance insulated from each other; Or, at least comprise two low pass filters insulated from each other.
In conjunction with any one implementation in described second to the 4th kind of possible implementation of described first aspect or described first aspect, 6th kind of possible implementation of described first aspect is provided, in the described 6th kind of possible implementation of described first aspect, described local side second isolation module comprises two inductance insulated from each other; Or, comprise two low pass filters insulated from each other.
Embodiment of the present invention beneficial effect is as follows: in embodiment of the present invention scheme, the local side First Line of described local side device to local side second line to can transmit d. c. voltage signal simultaneously, after being connected with end side device by transmission line, by end side device by this transmission line to local side First Line to local side second line to providing d. c. voltage signal; Because local side First Line is to being in parallel with local side second line to the transmission line of correspondence, therefore, the resistance of transmission line can be reduced, the electric current in transmission line is increased, thus the reverse power supply distance that acquisition is larger.
Second aspect, provides a kind of digital subscriber line terminal device, comprise terminal processing module, supply module, terminal First Line to, terminal second line to and terminal interface module;
The described terminal First Line pair that described terminal processing module passes through is connected with described terminal interface module; Described supply module and described terminal First Line are to being connected; The right first end of described terminal second line is with described terminal First Line to being connected, and right the second end of described terminal second line is connected with described terminal interface module;
Described terminal interface module, for provide described terminal First Line to the described terminal second line pair interface be connected with local side side device;
Described terminal First Line pair, for transmission of digital signals, transmit a d. c. voltage signal that described supply module provides and to described terminal second line to transmission d. c. voltage signal;
Described terminal second line pair, for receiving the d. c. voltage signal of described terminal First Line to transmission, and provides this d. c. voltage signal to local side side device;
Described terminal processing module, for the treatment of the digital signal of described terminal First Line to transmission;
Described supply module, for described terminal First Line to providing a d. c. voltage signal.
In conjunction with described second aspect, the first possible implementation of described second aspect is provided, in the first possible implementation described in described second aspect, also comprise terminal first isolation module, described supply module by described terminal first isolation module with described terminal First Line to being connected;
Described terminal first isolation module, for isolate described supply module and described terminal First Line between digital signal, the d. c. voltage signal that described supply module is provided is by the described terminal First Line pair of rear arrival.
In conjunction with the first possible implementation described of described second aspect, the implementation that the second of described second aspect is possible is provided, in the implementation that described the second of described second aspect is possible, also comprise terminal second isolation module, the right first end of described terminal second line by described terminal second isolation module with described terminal First Line to being connected;
Described terminal second isolation module, for isolate described terminal second line to and described terminal First Line between digital signal, make described terminal First Line to transmission d. c. voltage signal by rear arrival described terminal second line pair.
In conjunction with the implementation that described the second of described second aspect is possible, the third possible implementation of described second aspect is provided, in the third possible implementation described in described second aspect, also comprise terminal break-make module, described terminal second isolation module by described terminal break-make module with described terminal First Line to being connected;
Described terminal break-make module, for control described terminal second isolation module and described terminal First Line between the break-make that is connected.
In conjunction with the third possible implementation described of described second aspect, 4th kind of possible implementation of described second aspect is provided, in the described 4th kind of possible implementation of described second aspect, described terminal break-make module comprises at least two switches insulated from each other.
In conjunction with any one implementation in described first to fourth kind of possible implementation of described second aspect or described second aspect, 5th kind of possible implementation of described second aspect is provided, in the described 5th kind of possible implementation of described second aspect, described terminal first isolation module at least comprises two inductance insulated from each other; Or, at least comprise two low pass filters insulated from each other.
In conjunction with any one implementation in described second to the 4th kind of possible implementation of described second aspect or described second aspect, 6th kind of possible implementation of described second aspect is provided, in the described 6th kind of possible implementation of described second aspect, described terminal second isolation module comprises two inductance insulated from each other; Or, comprise two low pass filters insulated from each other.
Embodiment of the present invention beneficial effect is as follows: in embodiment of the present invention scheme, the terminal First Line of described terminal installation to terminal second line to can transmit d. c. voltage signal simultaneously, after being connected with local side side device by transmission line, by this transmission line to local side First Line to local side second line to providing d. c. voltage signal; Because terminal First Line is to being in parallel with terminal second line to the transmission line of correspondence, therefore, the resistance of transmission line can be reduced, the electric current in transmission line is increased, thus the reverse power supply distance that acquisition is larger.
The third aspect, there is provided a kind of Digital Subscriber Line reverse electric power system, comprise as first aspect second to the 6th kind of implementation that any one is possible provide as described in local side device, with at least one as second aspect second to the 6th kind of implementation that any one is possible provide as described in terminal installation, the terminal interface module of terminal installation described in each is connected with the local side interface module of described local side device with the second line pair by First Line, the terminal First Line of described First Line pair and described terminal installation to the local side First Line with described local side device to corresponding, terminal second line of described second line pair and described terminal installation to local side second line with described local side device to corresponding.
Embodiment of the present invention beneficial effect is as follows: in embodiment of the present invention scheme, the local side First Line of described local side device to local side second line pair, with the terminal First Line of described terminal installation to terminal second line to connecting one to one, d. c. voltage signal can be transmitted simultaneously, by described terminal installation by this transmission line to local side First Line to local side second line to providing d. c. voltage signal; Because two-wire transmits d. c. voltage signal to parallel connection, the resistance of transmission line can be reduced, the electric current in transmission line is increased, thus obtain larger reverse power supply distance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the reverse electric power system of Digital Subscriber Line in prior art;
The structural representation of the first numeral subscriber line local side device that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the second numeral subscriber line local side device that Fig. 3 provides for the embodiment of the present invention;
The structural representation of the third numeral subscriber line local side device that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the 4th kind of numeral subscriber line local side device that Fig. 5 provides for the embodiment of the present invention;
The structural representation of the first digital subscriber line terminal device that Fig. 6 provides for the embodiment of the present invention;
The structural representation of the second digital subscriber line terminal device that Fig. 7 provides for the embodiment of the present invention;
The structural representation of the third digital subscriber line terminal device that Fig. 8 provides for the embodiment of the present invention;
The structural representation of the 4th kind of digital subscriber line terminal device that Fig. 9 provides for the embodiment of the present invention;
The structural representation of the reverse electric power system of a kind of Digital Subscriber Line that Figure 10 provides for the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of numeral subscriber line local side device and terminal installation, to realize the object increasing reverse power supply distance.Technical scheme for a better understanding of the present invention, below in conjunction with Figure of description, is described in detail to the scheme of the embodiment of the present invention.
Should be clear and definite, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
See Fig. 2, the embodiment of the present invention provides a kind of numeral subscriber line local side device 200A, comprise local side processing module 201, powered module 202, at least one road bureau end First Line to 203, at least one road bureau holds the second line to 204 drawn game end interface modules 207; Described local side First Line to 203 and described local side second line to 204 one_to_one corresponding.
Described local side processing module 201 is connected with described local side interface module 207 203 by described local side First Line; Described powered module 202 is connected 203 with described local side First Line; Described local side second line connects 203 with corresponding described local side First Line the first end of 204, and described local side second line is connected with described local side interface module 207 second end of 204.
Described local side interface module 207, to 204 is connected the interface of end side device to 203 with described local side second line for providing described local side First Line.
Described local side First Line, to 203, transmits next d. c. voltage signal for transmission of digital signals, receiving terminal side and receives the described local side second line d. c. voltage signal next to 204 transmission.
This d. c. voltage signal, to 204, for the d. c. voltage signal that the transmission of receiving terminal side comes, is transferred to described local side First Line to 203 by described local side second line.
Described local side processing module 201, for the treatment of the digital signal of described local side First Line to 203 transmission.
Described powered module 202, for receiving each d. c. voltage signal of described local side First Line to 203 transmission, powers according to the device that each d. c. voltage signal is local side side.
In the embodiment of the present invention, the local side First Line of described local side device can transmit d. c. voltage signal to 203 and local side second line to 204 simultaneously, after being connected with end side device by transmission line, provide d. c. voltage signal to 203 and local side second line to 204 to local side First Line by this transmission line by end side device; Because local side First Line is in parallel to 203 and local side second line to the transmission line of 204 correspondences, therefore, the resistance of transmission line can be reduced, the electric current in transmission line is increased, thus the reverse power supply distance that acquisition is larger.
See Fig. 3, on the basis of the device of numeral subscriber line local side shown in Fig. 2 200A, provide the second numeral subscriber line local side device 200B.Be with numeral subscriber line local side device 200A difference, numeral subscriber line local side device 200B also comprises local side first isolation module 205, and described powered module 202 is connected 203 with described local side First Line by described local side first isolation module 205.
Described local side first isolation module 205, for isolating described powered module 202 and described local side First Line to the digital signal between 203, makes described local side First Line to each d. c. voltage signals of 203 transmission by the described powered module 202 of rear arrival.
In the embodiment of the present invention, by arranging described local side first isolation module 205, make described local side First Line to each d. c. voltage signal of 203 transmission by the described powered module 202 of rear arrival, and digital signal can not be transferred to described powered module 202, thus digital data transmission can not be interfered, increase the stability of oppositely power supply simultaneously.
See Fig. 4, on the basis of the device of numeral subscriber line local side shown in Fig. 2 200A, provide the third numeral subscriber line local side device 200C.Be with numeral subscriber line local side device 200A difference, numeral subscriber line local side device 200C also comprises local side second isolation module 206, and described local side second line is connected 203 with described local side First Line by described local side second isolation module 206 first end of 204.
Described local side second isolation module 206, for isolate described local side second line to 204 and described local side First Line to the digital signal between 203, make described local side second line to 204 d. c. voltage signals received by the described local side First Line of rear arrival to 203.
In the embodiment of the present invention, by arranging described local side second isolation module 206, make described local side second line to each d. c. voltage signals of 204 transmission by the described local side First Line of rear arrival to 203, increase the stability of oppositely power supply.
See Fig. 5, on the basis of the device of numeral subscriber line local side shown in Fig. 3 200B, provide the 4th kind of numeral subscriber line local side device 200D.Be with numeral subscriber line local side device 200B difference, numeral subscriber line local side device 200D also comprises local side second isolation module 206, and described local side second line is connected 203 with described local side First Line by described local side second isolation module 206 first end of 204.
Described local side second isolation module 206, for isolate described local side second line to 204 and described local side First Line to the digital signal between 203, make described local side second line to 204 d. c. voltage signals received by the described local side First Line of rear arrival to 203.
Namely, 4th kind of numeral subscriber line local side device 200D had both arranged described local side first isolation module 205, described local side second isolation module 206 is set again, make described local side second line to 204 transmission each d. c. voltage signals by the described local side First Line of rear arrival to 203, make described local side First Line to each d. c. voltage signal of 203 transmission by the described powered module 202 of rear arrival, and digital signal can not be transferred to described powered module 202, improve the stability of digital data transmission and oppositely power supply further.
In the various embodiments described above, described local side first isolation module 205 at least comprises two inductance insulated from each other; Or, at least comprise two low pass filters insulated from each other.Described local side second isolation module 206 comprises two inductance insulated from each other; Or, comprise two low pass filters insulated from each other.Concrete device is selected, and carries out, do not repeat them here according to actual design requirement, installing space and cost etc.
Simultaneously, conveniently control the on off operating mode that described local side second isolation module 206 is connected 203 with described local side First Line, numeral subscriber line local side device 200D shown in the device of numeral subscriber line local side shown in Fig. 4 200C and Fig. 5, the module having and control on-off function can also be provided, such as local side break-make module 208, described local side second isolation module 206 is connected 203 with described local side First Line by described local side break-make module 208.Described local side break-make module 208 is for controlling described local side second isolation module 206 and described local side First Line to the break-make be connected between 203.Described local side break-make module 208 can multiple pair-wise combination and switch insulated from each other.Be such as two switches insulated from each other, by this, hope disconnect described local side second isolation module 206 and described local side First Line to 203 between be connected time, opening this switch can realize.
Certainly, described local side break-make module 208 also can be supplied to numeral subscriber line local side device 200A and numeral subscriber line local side device 200B, also can be arranged at other link positions as required.Such as, in the device of numeral subscriber line local side shown in Fig. 2 200A, described local side break-make module 208 be directly arranged at described local side second line to 204 and described local side First Line between 203; Again such as, in the device of numeral subscriber line local side shown in Fig. 3 200B, described local side break-make module 208 is arranged at described local side first isolation module 205 and described local side First Line between 203.Visible described local side break-make module 208 can be arranged as required more flexibly.And the embodiment of the present invention is only to illustrate, the present invention is not limited to this.
In addition, numeral subscriber line local side device 200A, 200B, 200C and 200D that the present embodiment provides can be single channel, two-way or multichannel equipment, can be understood as, a road is expressed as: local side processing module 201, powered module 202, road bureau end First Line hold the second line to 204 drawn game end interface modules 207 to 203, one road bureau.Two-way is expressed as: local side processing module 201, powered module 202, two-way local side First Line to 203, two-way local side second line to 204 drawn game end interface modules 207, two-way local side First Line to 203 and two-way local side second line to 204 man-to-man combinations respectively.Multichannel is similar to two-way, and namely multichannel local side First Line distinguishes man-to-man combinations to 203 and multichannel local side second line to 204.
Embodiment two
See Fig. 6, the embodiment of the present invention provides a kind of digital subscriber line terminal device 300A, comprise terminal processing module 301, supply module 302, terminal First Line to 303, terminal second line is to 304 and terminal interface module 307.
The described terminal First Line that described terminal processing module 301 passes through is connected with described terminal interface module 307 303; Described supply module 302 is connected 303 with described terminal First Line; Described terminal second line to 304 first end described in terminal First Line to 303 connect, described terminal second line is connected with described terminal interface module 307 second end of 304.
Described terminal interface module 307, for the interface providing described terminal First Line to be connected with local side side device 304 with described terminal second line 303.
Described terminal First Line to 303, for transmission of digital signals, transmit a d. c. voltage signal that described supply module 302 provides and to described terminal second line to 304 transmission d. c. voltage signals.
Described terminal second line, to 304, for receiving the d. c. voltage signal of described terminal First Line to 303 transmission, and provides this d. c. voltage signal to local side side device.
Described terminal processing module 301, for the treatment of the digital signal of described terminal First Line to 303 transmission;
Described supply module 302, for providing a d. c. voltage signal to described terminal First Line to 303.
In the embodiment of the present invention, the terminal First Line of described terminal installation can transmit d. c. voltage signal to 303 and terminal second line to 304 simultaneously, after being connected with local side side device by transmission line, provide d. c. voltage signal to 203 and local side second line to 204 to local side First Line by this transmission line; Because terminal First Line is in parallel to 303 and terminal second line to the transmission line of 304 correspondences, therefore, the resistance of transmission line can be reduced, the electric current in transmission line is increased, thus the reverse power supply distance that acquisition is larger.
See Fig. 7, on the basis of the device of digital subscriber line terminal shown in Fig. 6 300A, provide the second digital subscriber line terminal device 300B.Be with digital subscriber line terminal device 300A difference, digital subscriber line terminal device 300B also comprises terminal first isolation module 305, and described supply module 302 is connected 303 with described terminal First Line by described terminal first isolation module 305.
Described terminal first isolation module 305, for isolating described supply module 302 and described terminal First Line to the digital signal between 303, the d. c. voltage signal that described supply module 302 is provided by the described terminal First Line of rear arrival to 303.
In the embodiment of the present invention, by arranging described terminal first isolation module 305, after the d. c. voltage signal that supply module 302 is provided passes through, arriving described terminal First Line to 303, increasing the stability of oppositely power supply.
See Fig. 8, on the basis of the device of digital subscriber line terminal shown in Fig. 6 300A, provide the third digital subscriber line terminal device 300C.Be with digital subscriber line terminal device 300A difference, digital subscriber line terminal device 300B also comprises terminal second isolation module 306, and described terminal second line is connected 303 with described terminal First Line by described terminal second isolation module 306 first end of 304.
Described terminal second isolation module 306, for isolate described terminal second line to 304 and described terminal First Line to the digital signal between 303, make described terminal First Line to the d. c. voltage signals of 303 transmission by rear arrival described terminal second line to 304.
In the embodiment of the present invention, by arranging described terminal second isolation module 306, after the d. c. voltage signal of described terminal First Line to 303 transmission is passed through, arrive described terminal second line to 304, and isolate the digital signal of described terminal First Line to 303 transmission, described terminal second line can not have an impact to 303 transmission of digital signals to described terminal First Line to 304, thus increases the stability of digital data transmission and oppositely power supply.
See Fig. 9, on the basis of the device of digital subscriber line terminal shown in Fig. 7 300B, provide the 4th kind of digital subscriber line terminal device 300D.Be with digital subscriber line terminal device 300B difference, digital subscriber line terminal device 300D also comprises terminal second isolation module 306, and described terminal second line is connected 303 with described terminal First Line by described terminal second isolation module 306 first end of 304.
Described terminal second isolation module 306, for isolate described terminal second line to 304 and described terminal First Line to the digital signal between 303, make described terminal First Line to the d. c. voltage signals of 303 transmission by rear arrival described terminal second line to 304.
Namely, 4th kind of digital subscriber line terminal device 300D had both arranged described terminal first isolation module 305, described terminal second isolation module 306 is set again, each d. c. voltage signal that described supply module 302 is provided is by arriving described terminal First Line to 303 after described terminal first isolation module 305, make described terminal First Line to the d. c. voltage signal of 303 transmission by arriving described terminal second line after described terminal second isolation module 306 to 304, and digital signal can not be transferred to described terminal second line to 304, the stability of further raising digital data transmission and oppositely power supply.
In the various embodiments described above, described terminal first isolation module 305 at least comprises two inductance insulated from each other; Or, at least comprise two low pass filters insulated from each other.Described terminal second isolation module 306 comprises two inductance insulated from each other; Or, comprise two low pass filters insulated from each other.Concrete device is selected, and carries out, do not repeat them here according to actual design requirement, installing space and cost etc.
Simultaneously, conveniently control the on off operating mode that described terminal second isolation module 306 is connected 303 with described terminal First Line, digital subscriber line terminal device 300D shown in the device of digital subscriber line terminal shown in Fig. 8 300C and Fig. 9, the module having and control on-off function can also be provided, such as terminal break-make module 308, described terminal second isolation module 306 is connected 303 with described terminal First Line by described terminal break-make module 308.Described terminal break-make module 308 is for controlling described terminal second isolation module 306 and described terminal First Line to the break-make be connected between 303.Described terminal break-make module 308 can multiple pair-wise combination and switch insulated from each other.Be such as two switches insulated from each other, by this, hope disconnect described terminal second isolation module 306 and described terminal First Line to 303 between be connected time, opening this switch can realize.
Similar to described local side break-make module 208, described terminal break-make module 308 also can be supplied to digital subscriber line terminal device 300A and digital subscriber line terminal device 300B, also can be arranged at other link positions as required.Such as, in the device of digital subscriber line terminal shown in Fig. 6 300A, institute's terminal break-make module 308 be directly arranged at described terminal second line to 304 and described terminal First Line between 303; Again such as, in the device of digital subscriber line terminal shown in Fig. 7 300B, institute's terminal break-make module 308 is arranged at described terminal first isolation module 305 and described terminal First Line between 303.Visible described terminal break-make module 308 can be arranged as required more flexibly.And the embodiment of the present invention is only to illustrate, the present invention is not limited to this.
Embodiment three
See Figure 10, the embodiment of the present invention provides a kind of Digital Subscriber Line reverse electric power system 400, comprise the described numeral subscriber line local side device 200 that embodiment one provides, with the described digital subscriber line terminal device 300 that at least one embodiment two provides, the terminal interface module 307 of digital subscriber line terminal device described in each is connected with the local side interface module 207 of described numeral subscriber line local side device 200 404 with the second line 403 by First Line, described First Line is corresponding to 203 with the local side First Line of terminal First Line to 303 and described numeral subscriber line local side device 200 of described terminal installation 300 to 403, described second line is corresponding to 204 with local side second line of terminal second line to 304 and described local side device of described digital subscriber line terminal device 300 to 404.
In order to make the transmission of digital signal and oppositely power supply have higher stability, usual and described numeral subscriber line local side device 200 and with in described digital subscriber line terminal device 300, at least side device tool isolation module.Such as, digital subscriber local side device 200A, 200B, 200C or 200D coordinates with digital subscriber terminal device 300D; Again such as, digital subscriber local side device 200B coordinates with digital subscriber terminal device 300C; Again such as, digital subscriber local side device 200C coordinates with digital subscriber terminal device 300B; Again such as, digital subscriber local side device 200D coordinates with digital subscriber terminal device 300A, 300B or 300C; Thus forming the reverse electric power system of Digital Subscriber Line of user's needs, concrete Reference numeral please refer to Fig. 2 to Fig. 9.
In the embodiment of the present invention, the local side First Line of described numeral subscriber line local side device 200 to 203 and local side second line to 204, with the terminal First Line of described digital subscriber line terminal device 300,303 and terminal second line are connected one to one to 304, d. c. voltage signal can be transmitted simultaneously, provide d. c. voltage signal to 203 and local side second line to 204 to local side First Line by this transmission line by described digital subscriber line terminal device 300; Because two-wire transmits d. c. voltage signal to parallel connection, the resistance of transmission line can be reduced, the electric current in transmission line is increased, thus obtain larger reverse power supply distance.
It should be noted that, the digital signal related in the embodiment of the present invention, can for the signal adopting the digital user line technologies such as G.Fast, VDSL2/ADSL2/2+ to produce, the signal that yet can produce for other digital user line technologies, does not make special regulation at this.
Those skilled in the art should understand, the embodiment of the application can be provided as method, system or computer program.Therefore, the application can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the application can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The application describes with reference to according to the flow chart of the method for the embodiment of the present application, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although described the preferred embodiment of the application, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the application's scope.
Obviously, those skilled in the art can carry out various change and modification to the embodiment of the present application and not depart from the spirit and scope of the embodiment of the present application.Like this, if these amendments of the embodiment of the present application and modification belong within the scope of the application's claim and equivalent technologies thereof, then the application is also intended to comprise these change and modification.
Claims (15)
1. a numeral subscriber line local side device, is characterized in that, comprises local side processing module, powered module, at least one road bureau end First Line hold the second line to drawn game end interface module to, at least one road bureau; Described local side First Line to described local side second line to one_to_one corresponding;
Described local side processing module is connected with described local side interface module by described local side First Line pair; Described powered module and described local side First Line are to being connected; The right first end of described local side second line is with corresponding described local side First Line to connection, and right the second end of described local side second line is connected with described local side interface module;
Described local side interface module, for provide described local side First Line to described local side second line to the interface being connected end side device;
Described local side First Line pair, transmits next d. c. voltage signal for transmission of digital signals, receiving terminal side and receives the described local side second line d. c. voltage signal next to transmission;
Described local side second line pair, for the d. c. voltage signal that the transmission of receiving terminal side comes, is transferred to described local side First Line pair by this d. c. voltage signal;
Described local side processing module, for the treatment of the digital signal of described local side First Line to transmission;
Described powered module, for receiving each d. c. voltage signal of described local side First Line to transmission, powers according to the device that each d. c. voltage signal is local side side.
2. local side device as claimed in claim 1, is characterized in that, also comprise local side first isolation module, described powered module by described local side first isolation module with described local side First Line to being connected;
Described local side first isolation module, for isolate described powered module and described local side First Line between digital signal, make described local side First Line to each d. c. voltage signal of transmission by the described powered module of rear arrival.
3. local side device as claimed in claim 2, is characterized in that, also comprise local side second isolation module, the right first end of described local side second line by described local side second isolation module with described local side First Line to being connected;
Described local side second isolation module, for isolate described local side second line pair and described local side First Line between digital signal, make described local side second line to the d. c. voltage signal received by the described local side First Line pair of rear arrival.
4. local side device as claimed in claim 3, is characterized in that, also comprise local side break-make module, described local side second isolation module by described local side break-make module with described local side First Line to being connected;
Described local side break-make module, for control described local side second isolation module and described local side First Line between the break-make that is connected.
5. local side device as claimed in claim 4, it is characterized in that, described local side break-make module comprises at least two switches insulated from each other.
6. the local side device as described in any one of claim 2 to 5, is characterized in that, described local side first isolation module at least comprises two inductance insulated from each other; Or, at least comprise two low pass filters insulated from each other.
7. the local side device as described in any one of claim 3 to 5, is characterized in that, described local side second isolation module comprises two inductance insulated from each other; Or, comprise two low pass filters insulated from each other.
8. a digital subscriber line terminal device, is characterized in that, comprise terminal processing module, supply module, terminal First Line to, terminal second line to and terminal interface module;
The described terminal First Line pair that described terminal processing module passes through is connected with described terminal interface module; Described supply module and described terminal First Line are to being connected; The right first end of described terminal second line is with described terminal First Line to being connected, and right the second end of described terminal second line is connected with described terminal interface module;
Described terminal interface module, for provide described terminal First Line to the described terminal second line pair interface be connected with local side side device;
Described terminal First Line pair, for transmission of digital signals, transmit a d. c. voltage signal that described supply module provides and to described terminal second line to transmission d. c. voltage signal;
Described terminal second line pair, for receiving the d. c. voltage signal of described terminal First Line to transmission, and provides this d. c. voltage signal to local side side device;
Described terminal processing module, for the treatment of the digital signal of described terminal First Line to transmission;
Described supply module, for described terminal First Line to providing a d. c. voltage signal.
9. terminal installation as claimed in claim 8, is characterized in that, also comprise terminal first isolation module, described supply module by described terminal first isolation module with described terminal First Line to being connected;
Described terminal first isolation module, for isolate described supply module and described terminal First Line between digital signal, the d. c. voltage signal that described supply module is provided is by the described terminal First Line pair of rear arrival.
10. terminal installation as claimed in claim 9, is characterized in that, also comprise terminal second isolation module, the right first end of described terminal second line by described terminal second isolation module with described terminal First Line to being connected;
Described terminal second isolation module, for isolate described terminal second line to and described terminal First Line between digital signal, make described terminal First Line to transmission d. c. voltage signal by rear arrival described terminal second line pair.
11. terminal installations as claimed in claim 10, is characterized in that, also comprise terminal break-make module, described terminal second isolation module by described terminal break-make module with described terminal First Line to being connected;
Described terminal break-make module, for control described terminal second isolation module and described terminal First Line between the break-make that is connected.
12. terminal installations as claimed in claim 11, is characterized in that, described terminal break-make module comprises at least two switches insulated from each other.
13. terminal installations as described in any one of claim 9 to 12, it is characterized in that, described terminal first isolation module at least comprises two inductance insulated from each other; Or, at least comprise two low pass filters insulated from each other.
14. terminal installations as described in any one of claim 10 to 12, it is characterized in that, described terminal second isolation module comprises two inductance insulated from each other; Or, comprise two low pass filters insulated from each other.
15. 1 kinds of reverse electric power systems of Digital Subscriber Line, it is characterized in that, comprise local side device as described in any one of claim 1 to 7 and at least one terminal installation as described in any one of claim 8 to 14, the terminal interface module of terminal installation described in each is connected with the local side interface module of described local side device with the second line pair by First Line, the terminal First Line of described First Line pair and described terminal installation to the local side First Line with described local side device to corresponding, terminal second line of described second line pair and described terminal installation to local side second line with described local side device to corresponding.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/075212 WO2015154311A1 (en) | 2014-04-11 | 2014-04-11 | Digital subscriber line local-side device, terminal device and reverse power supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104041001A CN104041001A (en) | 2014-09-10 |
| CN104041001B true CN104041001B (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201480000389.8A Active CN104041001B (en) | 2014-04-11 | 2014-04-11 | A kind of numeral subscriber line local side device, terminal installation and reverse electric power system |
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| Country | Link |
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| CN (1) | CN104041001B (en) |
| WO (1) | WO2015154311A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506399A (en) * | 2014-12-23 | 2015-04-08 | 上海市共进通信技术有限公司 | PON (passive optical network) and VDSL (very high speed digital subscriber line) based broadband network interconnection realization system |
| CN106301546B (en) * | 2015-06-09 | 2019-07-02 | 中兴通讯股份有限公司 | Reverse power supply circuit detection processing method and device |
| EP3451581B1 (en) * | 2016-06-16 | 2020-08-05 | Huawei Technologies Co., Ltd. | Switching device |
| CN109005041B (en) * | 2017-06-07 | 2022-05-13 | 中兴通讯股份有限公司 | Local side equipment, reverse power supply system and method |
| CN107395474A (en) * | 2017-09-06 | 2017-11-24 | 嘉兴佳利电子有限公司 | A kind of integrated G.fast reverse power supply compatibility xDSL FTTx copper cable entering devices |
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| CN101764901A (en) * | 2008-12-26 | 2010-06-30 | 中国电信股份有限公司 | Implementation system, equipment and method for convergence sharing of digital user line port |
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| CN202906431U (en) * | 2012-09-24 | 2013-04-24 | 华为技术有限公司 | Power supply equipment |
| US8601289B1 (en) * | 2011-02-21 | 2013-12-03 | Adtran, Inc. | Optical network unit with redundant reverse powering from customer premises equipment |
| CN103634086A (en) * | 2012-08-28 | 2014-03-12 | 中兴通讯股份有限公司 | Method for adjusting uplink and downlink time allocation, system, local-side equipment and customer premise equipment (CPE) |
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| CN101764901A (en) * | 2008-12-26 | 2010-06-30 | 中国电信股份有限公司 | Implementation system, equipment and method for convergence sharing of digital user line port |
| US8601289B1 (en) * | 2011-02-21 | 2013-12-03 | Adtran, Inc. | Optical network unit with redundant reverse powering from customer premises equipment |
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| CN103634086A (en) * | 2012-08-28 | 2014-03-12 | 中兴通讯股份有限公司 | Method for adjusting uplink and downlink time allocation, system, local-side equipment and customer premise equipment (CPE) |
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Also Published As
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| WO2015154311A1 (en) | 2015-10-15 |
| CN104041001A (en) | 2014-09-10 |
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