CN104041001A - Digital user line local end device, terminal device and reverse power supply system - Google Patents
Digital user line local end device, terminal device and reverse power supply system Download PDFInfo
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- CN104041001A CN104041001A CN201480000389.8A CN201480000389A CN104041001A CN 104041001 A CN104041001 A CN 104041001A CN 201480000389 A CN201480000389 A CN 201480000389A CN 104041001 A CN104041001 A CN 104041001A
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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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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a digital user line local end device, a terminal device and a reverse power supply system, in order to increase a reverse power supply distance. The digital user line local end device comprises a local end treatment module, a current-carrying module, at least one path of local end first line pair, at least one path of local end second line pair and a local end interface module; the local end first line pair and the local end second line pair are respectively corresponding; the local end treatment module is in connection with the local end interface module through the local end first line pair; the current-carrying module is in connection with the local end first line pair; the first end of the local end second line pair is in connection with the corresponding local end first line pair, and the second end of the local end second line pair is in connection with the local end interface module; the local end second line pair and the local end first line pair meanwhile transmit direct current voltage signals and are connected to a terminal side to increase transmission current of the line pair connected to the terminal side, thereby increasing a terminal side reverse power supply distance.
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 swift and violent popularization of high speed development and the multimedia service of technique of internet, the demand of the network bandwidth is increasing, and cable broadband access is registered one's residence and developed to fiber entering household by twisted-pair feeder.But in the transformation of the old community of part, can run into the realistic problem of fiber entering household difficulty, 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 (Fiber to the Distribution Point, FTTDP) a solution that fiber/copper line moves down, FTTDP scheme be optical fiber based on traditional to roadside (Fiber to the Curb, FTTC) scheme, further optical fiber is moved down into curbside cabinet or community machine room, curbside cabinet or community machine room are placed remote digital user line access multiplexing device (Digital Subscriber Line Access Multiplexer, DSLAM), again by DSLAM by twisted pair line connection to user's family.
Because FTTDP distance users is closer, in 15m～300m left and right, 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 can adopt civil power to carry out power supply to the device, due to the website enormous amount of FTTDP, this is a huge burden for operator.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.
Oppositely power supply is the possibility that solves FTTDP powerup issue, example is as shown in Figure 1: comprise local side apparatus 101, terminal equipment 102, oppositely power supply receiving end (Powered Device, PD) 103, oppositely power supply feeder ear (Power Supply Equipment, PSE) 104, and line is to 105.Between local side apparatus 101 and terminal equipment 102, adopt G.Fast, also can be the Digital Subscriber Line such as VDSL2/ADSL2/2+ (Digital Subscriber Line, DSL) technology is oppositely powered feeder ear 104 at user's side output dc voltage, by isolation/protection module 107, be coupled on twisted-pair feeder.The direct voltage that oppositely power supply receiving end 103 passes through after local side is isolated G.Fast by isolation/protection module 107 extracts, and inputs as power supply.Between G.Fast and direct voltage, be coupled by isolation module.
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, is subject to electric module, at least one road bureau end First Line holds the second line to drawn game end interface module to, at least one road bureau; Described local side First Line to described local side the second line to corresponding one by one;
Described local side processing module is connected with described local side interface module by described local side First Line pair; Described be subject to electric module with described local side First Line to being connected; The right first end of described local side the second line is with corresponding described local side First Line to connecting, and the second right end of described local side the 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 the second line to being connected the interface of end side device;
Described local side First Line pair, transmits the d. c. voltage signal coming and receives described local side the second line to transmitting the d. c. voltage signal coming for transmission of digital signals, receiving terminal side;
Described local side the second line pair, the d. c. voltage signal coming for the transmission of receiving terminal side, is transferred to described local side First Line pair by this d. c. voltage signal;
Described local side processing module, the digital signal for the treatment of described local side First Line to transmission;
Describedly being subject to electric module, for receiving the each d. c. voltage signal of described local side First Line to transmission, is the device power supply of local side side according to each d. c. voltage signal.
In conjunction with described first aspect, the possible implementation of the first of described first aspect is provided, in the possible implementation of described the first of described first aspect, also comprise local side the first isolation module, described in be subject to electric module by described local side the first isolation module with described local side First Line to being connected;
Described local side the first isolation module, for be subject to described in isolating electric module and described local side First Line between digital signal, make described local side First Line be subject to electric module to each d. c. voltage signal of transmission by described in rear arrival.
In conjunction with the possible implementation of described the first of described first aspect, the possible implementation of the second of described first aspect is provided, in the possible implementation of described the second of described first aspect, also comprise local side the second isolation module, the right first end of described local side the second line by described local side the second isolation module with described local side First Line to being connected;
Described local side the second isolation module, for isolate described local side the second line pair and described local side First Line between digital signal, make described local side the second line to the d. c. voltage signal receiving by the described local side First Line pair of rear arrival.
In conjunction with the possible implementation of described the second of described first aspect, the third possible implementation of described first aspect is provided, in described the third possible implementation of described first aspect, also comprise local side break-make module, described local side the 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 the second isolation module and described local side First Line between the break-make that is connected.
In conjunction with described the third possible implementation of described first aspect, the 4th kind of possible implementation of described first aspect is provided, in described the 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 implementation in described first to fourth kind of possible implementation of described first aspect or described first aspect, the 5th kind of possible implementation of described first aspect is provided, in described the 5th kind of possible implementation of described first aspect, described local side the 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 implementation in described second to the 4th kind of possible implementation of described first aspect or described first aspect, the 6th kind of possible implementation of described first aspect is provided, in described the 6th kind of possible implementation of described first aspect, described local side the 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 the 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 the second line to d. c. voltage signal is provided; Due to local side First Line to local side the second line to corresponding transmission line be parallel connection therefore, can reduce the resistance of transmission line, electric current in transmission line is increased, thereby obtains larger reverse power supply distance.
Second aspect, provides a kind of Digital Subscriber Line terminal installation, comprise terminal processing module, supply module, terminal First Line to, terminal the second line to and terminal interface module;
The described terminal First Line that described terminal processing module passes through pair is connected with described terminal interface module; Described supply module with described terminal First Line to being connected; Described in the right first end of described terminal the second line, terminal First Line is to connecting, and the second right end of described terminal the second line is connected with described terminal interface module;
Described terminal interface module, for provide described terminal First Line to described terminal the second line pair interface being 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 the second line to transmission d. c. voltage signal;
Described terminal the second line pair, for receiving the d. c. voltage signal to transmission by described terminal First Line, and provides this d. c. voltage signal to local side side device;
Described terminal processing module, the digital signal for the treatment of described terminal First Line to transmission;
Described supply module, for to described terminal First Line to a d. c. voltage signal is provided.
In conjunction with described second aspect, the possible implementation of the first of described second aspect is provided, in the possible implementation of described the first of described second aspect, also comprise terminal the first isolation module, described supply module by described terminal the first isolation module with described terminal First Line to being connected;
Described terminal the first isolation module, for isolate described supply module and described terminal First Line between digital signal, make d. c. voltage signal that described supply module provides by the described terminal First Line pair of rear arrival.
In conjunction with the possible implementation of described the first of described second aspect, the possible implementation of the second of described second aspect is provided, in the possible implementation of described the second of described second aspect, also comprise terminal the second isolation module, the right first end of described terminal the second line by described terminal the second isolation module with described terminal First Line to being connected;
Described terminal the second isolation module, for isolate described terminal the second line to and described terminal First Line between digital signal, make described terminal First Line to transmission d. c. voltage signal by described terminal the second line pair of rear arrival.
In conjunction with the possible implementation of described the second of described second aspect, the third possible implementation of described second aspect is provided, in described the third possible implementation of described second aspect, also comprise terminal break-make module, described terminal the 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 the second isolation module and described terminal First Line between the break-make that is connected.
In conjunction with described the third possible implementation of described second aspect, the 4th kind of possible implementation of described second aspect is provided, in described the 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 implementation in described first to fourth kind of possible implementation of described second aspect or described second aspect, the 5th kind of possible implementation of described second aspect is provided, in described the 5th kind of possible implementation of described second aspect, described terminal the 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 implementation in described second to the 4th kind of possible implementation of described second aspect or described second aspect, the 6th kind of possible implementation of described second aspect is provided, in described the 6th kind of possible implementation of described second aspect, described terminal the 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 the 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 the second line to d. c. voltage signal is provided; Because terminal First Line is to being in parallel with terminal the second line to corresponding transmission line, therefore, can reduce the resistance of transmission line, the electric current in transmission line is increased, thereby obtain larger reverse power supply distance.
The third aspect, provide 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, described in each the terminal interface module of terminal installation by First Line to being connected with the local side interface module of described local side device with the second line pair, the terminal First Line of described First Line pair and described terminal installation to a local side First Line of described local side device to corresponding, terminal second line of described First Line pair and described terminal installation to local side second line of 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 the second line pair, with the terminal First Line of described terminal installation to terminal the second line to connecting one to one, can transmit d. c. voltage signal simultaneously, by described terminal installation by this transmission line to local side First Line to local side the second line to d. c. voltage signal is provided; Because two-wire transmits d. c. voltage signal to parallel connection, can reduce the resistance of transmission line, the electric current in transmission line is increased, thereby obtain larger reverse power supply distance.
Brief description of the drawings
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 installation that Fig. 6 provides for the embodiment of the present invention;
The structural representation of the second Digital Subscriber Line terminal installation that Fig. 7 provides for the embodiment of the present invention;
The structural representation of the third Digital Subscriber Line terminal installation that Fig. 8 provides for the embodiment of the present invention;
The structural representation of the 4th kind of Digital Subscriber Line terminal installation 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 that increases reverse power supply distance.Technical scheme for a better understanding of the present invention, below in conjunction with Figure of description, is elaborated 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 embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment mono-
Referring to 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, be subject to electric 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 the second line corresponding one by one to 204.
Described local side processing module 201 is connected with described local side interface module 207 203 by described local side First Line; Describedly be connected 203 with described local side First Line by electric module 202; Described local side the second line to 204 first end with corresponding described local side First Line to 203 connections, described local side the second line is connected with described local side interface module 207 the second end of 204.
Described local side interface module 207, for providing described local side First Line to 203 and the interface of described local side the second line to 204 connection end side devices.
Described local side First Line, to 203, transmits the d. c. voltage signal coming and receives the d. c. voltage signal that described local side the second line comes 204 transmission for transmission of digital signals, receiving terminal side.
Described local side the second line is to 204, and the d. c. voltage signal coming for the transmission of receiving terminal side, is transferred to described local side First Line to 203 by this d. c. voltage signal.
Described local side processing module 201, the digital signal for the treatment of described local side First Line to 203 transmission.
Describedly being subject to electric module 202, for receiving the each d. c. voltage signal of described local side First Line to 203 transmission, is the device power supply of local side side according to each d. c. voltage signal.
In the embodiment of the present invention, the local side First Line of described local side device to 203 and local side the second line can transmit d. c. voltage signal to 204 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 203 and local side the second line provide d. c. voltage signal to 204; Due to local side First Line to 203 and local side the second line to the transmission line of 204 correspondences be parallel connection therefore, can reduce the resistance of transmission line, electric current in transmission line is increased, thereby obtains larger reverse power supply distance.
Referring to 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 the first isolation module 205, described in be connected 203 with described local side First Line by described local side the first isolation module 205 by electric module 202.
Described local side the first isolation module 205, for being subject to described in isolating electric module 202 and described local side First Line to the digital signal between 203, make described local side First Line to each d. c. voltage signal of 203 transmission by being subject to electric module 202 described in rear arrival.
In the embodiment of the present invention, by described local side the first isolation module 205 is set, make described local side First Line to each d. c. voltage signal of 203 transmission by being subject to electric module 202 described in rear arrival, and digital signal is subject to electric module 202 described in can not being transferred to, thereby digital data transmission can not be interfered, increase the oppositely stability of power supply simultaneously.
Referring to 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 the second isolation module 206, and described local side the second line is connected 203 with described local side First Line by described local side the second isolation module 206 204 first end.
Described local side the second isolation module 206, for isolate described local side the second line to 204 and described local side First Line to the digital signal between 203, make described local side the second line to the d. c. voltage signal of 204 receptions by the described local side First Line of rear arrival to 203.
In the embodiment of the present invention, by described local side the second isolation module 206 is set, make described local side the second line to each d. c. voltage signal of 204 transmission by the described local side First Line of rear arrival to 203, increase the oppositely stability of power supply.
Referring to 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 the second isolation module 206, and described local side the second line is connected 203 with described local side First Line by described local side the second isolation module 206 204 first end.
Described local side the second isolation module 206, for isolate described local side the second line to 204 and described local side First Line to the digital signal between 203, make described local side the second line to the d. c. voltage signal of 204 receptions by the described local side First Line of rear arrival to 203.
; the 4th kind of numeral subscriber line local side device 200D both arranged described local side the first isolation module 205; described local side the second isolation module 206 is set again; make described local side the second line to each d. c. voltage signal of 204 transmission 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 being subject to electric module 202 described in rear arrival; and digital signal is subject to electric module 202 described in can not being transferred to, further improve digital data transmission and the reverse stability of power supply.
In the various embodiments described above, described local side the 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 the 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 according to actual design requirement, installing space and cost etc., does not repeat them here.
Simultaneously, for convenient control described local side the second isolation module 206 with described local side First Line to 203 on off operating modes that are connected, numeral subscriber line local side device 200D shown in the device 200C of numeral subscriber line local side shown in Fig. 4 and Fig. 5, can also provide and there is the module of controlling on-off function, for example local side break-make module 208, described local side the 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 the second isolation module 206 and described local side First Line to the break-make being connected between 203.Described local side break-make module 208 can multiple paired combinations and switch insulated from each other.Be for example two switches insulated from each other, by this, in the time that hope disconnects described local side the second isolation module 206 and described local side First Line and is connected between to 203, open this switch and can realize.
Certainly, described local side break-make module 208 also can offer numeral subscriber line local side device 200A and numeral subscriber line local side device 200B, also can be arranged at as required other link positions.For example, 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 the second line to 204 and described local side First Line between 203; Again for example, 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 the first isolation module 205 and described local side First Line between 203.Visible described local side break-make module 208 can arrange as required more flexibly.And the embodiment of the present invention is only in order 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, be subject to electric module 202, road bureau's end First Line to 203, a road bureau holds the second line to 204 drawn game end interface modules 207.Two-way is expressed as: local side processing module 201, be subject to electric module 202, two-way local side First Line to 203, two-way local side the second line is to 204 drawn game end interface modules 207, two-way local side First Line to 203 and two-way local side the second line to 204 man-to-man combinations respectively.Multichannel is similar to two-way, multichannel local side First Line to 203 and multichannel local side the second line to 204 respectively man-to-man combinations.
Embodiment bis-
Referring to Fig. 6, the embodiment of the present invention provides a kind of Digital Subscriber Line terminal installation 300A, comprise terminal processing module 301, supply module 302, terminal First Line to 303, terminal the 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 the second line is to terminal First Line described in 304 first end to 303 connections, and described terminal the second line is connected with described terminal interface module 307 the second end of 304.
Described terminal interface module 307, for provide described terminal First Line to 303 with described terminal the second line to 304 interfaces that are connected with local side side device.
Described terminal First Line is to 303, for transmission of digital signals, transmit a d. c. voltage signal that described supply module 302 provides and to described terminal the second line to 304 transmission d. c. voltage signals.
Described terminal the second line, to 304, for receiving the d. c. voltage signal to 303 transmission by described terminal First Line, and provides this d. c. voltage signal to local side side device.
Described terminal processing module 301, the digital signal for the treatment 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 to 303 and terminal the second line can transmit d. c. voltage signal to 304 simultaneously, after being connected with local side side device by transmission line, by this transmission line to local side First Line to 203 and local side the second line provide d. c. voltage signal to 204; Due to terminal First Line to 303 and terminal the second line be in parallel to the transmission line of 304 correspondences, therefore, can reduce the resistance of transmission line, the electric current in transmission line is increased, thereby obtains larger reverse power supply distance.
Referring to Fig. 7, on the basis of the terminal installation of Digital Subscriber Line shown in Fig. 6 300A, provide the second Digital Subscriber Line terminal installation 300B.Be with Digital Subscriber Line terminal installation 300A difference, Digital Subscriber Line terminal installation 300B also comprises terminal the first isolation module 305, and described supply module 302 is connected 303 with described terminal First Line by described terminal the first isolation module 305.
Described terminal the first isolation module 305, for isolating described supply module 302 and described terminal First Line to the digital signal between 303, make d. c. voltage signal that described supply module 302 provides by the described terminal First Line of rear arrival to 303.
In the embodiment of the present invention, by described terminal the first isolation module 305 is set, after the d. c. voltage signal that supply module 302 is provided passes through, arrive described terminal First Line to 303, increase the oppositely stability of power supply.
Referring to Fig. 8, on the basis of the terminal installation of Digital Subscriber Line shown in Fig. 6 300A, provide the third Digital Subscriber Line terminal installation 300C.Be with Digital Subscriber Line terminal installation 300A difference, Digital Subscriber Line terminal installation 300B also comprises terminal the second isolation module 306, and described terminal the second line is connected 303 with described terminal First Line by described terminal the second isolation module 306 304 first end.
Described terminal the second isolation module 306, for isolate described terminal the 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 signal of 303 transmission by described terminal the second line of rear arrival to 304.
In the embodiment of the present invention, by described terminal the second isolation module 306 is set, after described terminal First Line is passed through the d. c. voltage signal of 303 transmission, arrive described terminal the second line to 304, and isolate the digital signal of described terminal First Line to 303 transmission, described terminal the second line can not exert an influence to 303 transmission of digital signals to described terminal First Line to 304, thus the stability that increases digital data transmission and oppositely power.
Referring to Fig. 9, on the basis of the terminal installation of Digital Subscriber Line shown in Fig. 7 300B, provide the 4th kind of Digital Subscriber Line terminal installation 300D.Be with Digital Subscriber Line terminal installation 300B difference, Digital Subscriber Line terminal installation 300D also comprises terminal the second isolation module 306, and described terminal the second line is connected 303 with described terminal First Line by described terminal the second isolation module 306 304 first end.
Described terminal the second isolation module 306, for isolate described terminal the 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 signal of 303 transmission by described terminal the second line of rear arrival to 304.
, the 4th kind of Digital Subscriber Line terminal installation 300D both arranged described terminal the first isolation module 305, described terminal the second isolation module 306 is set again, make each d. c. voltage signal that described supply module 302 provides by the described terminal First Line of the rear arrival of described terminal the first isolation module 305 to 303, make described terminal First Line to the d. c. voltage signal of 303 transmission by described terminal the second line of the rear arrival of described terminal the second isolation module 306 to 304, and digital signal can not be transferred to described terminal the second line to 304, the stability that further improves digital data transmission and oppositely power.
In the various embodiments described above, described terminal the 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 the 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 according to actual design requirement, installing space and cost etc., does not repeat them here.
Simultaneously, for convenient control described terminal the second isolation module 306 with described terminal First Line to 303 on off operating modes that are connected, Digital Subscriber Line terminal installation 300D shown in the terminal installation 300C of Digital Subscriber Line shown in Fig. 8 and Fig. 9, can also provide and there is the module of controlling on-off function, for example terminal break-make module 308, described terminal the 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 the second isolation module 306 and described terminal First Line to the break-make being connected between 303.Described terminal break-make module 308 can multiple paired combinations and switch insulated from each other.Be for example two switches insulated from each other, by this, in the time that hope disconnects described terminal the second isolation module 306 and described terminal First Line and is connected between to 303, open this switch and can realize.
Similar to described local side break-make module 208, described terminal break-make module 308 also can offer Digital Subscriber Line terminal installation 300A and Digital Subscriber Line terminal installation 300B, also can be arranged at as required other link positions.For example, in the terminal installation of Digital Subscriber Line shown in Fig. 6 300A, institute's terminal break-make module 308 be directly arranged at described terminal the second line to 304 and described terminal First Line between 303; Again for example, in the terminal installation of Digital Subscriber Line shown in Fig. 7 300B, institute's terminal break-make module 308 is arranged at described terminal the first isolation module 305 and described terminal First Line between 303.Visible described terminal break-make module 308 can arrange as required more flexibly.And the embodiment of the present invention is only in order to illustrate, the present invention is not limited to this.
Embodiment tri-
Referring to 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 mono-provides, the described Digital Subscriber Line terminal installation 300 providing with at least one embodiment bis-, described in each, the terminal interface module 307 of Digital Subscriber Line terminal installation 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 to 403 with the terminal First Line of described terminal installation 300 to 303 and a local side First Line of described numeral subscriber line local side device 200 corresponding to 203, described the second line to 404 with terminal second line of described Digital Subscriber Line terminal installation 300 to 304 and local side second line of described local side device corresponding to 204.
For make the transmission of digital signal and oppositely power supply have higher stability, common and described numeral subscriber line local side device 200 and with described Digital Subscriber Line terminal installation 300 in, at least one side device tool isolation module.For example, digital subscriber local side device 200A, 200B, 200C or 200D coordinate with digital subscriber terminal device 300D; Again for example, digital subscriber local side device 200B coordinates with digital subscriber terminal device 300C; Again for example, digital subscriber local side device 200C coordinates with digital subscriber terminal device 300B; Again for example, digital subscriber local side device 200D coordinates with digital subscriber terminal device 300A, 300B or 300C; Thereby form the reverse electric power system of Digital Subscriber Line that user 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 the second line to 204, with the terminal First Line of described Digital Subscriber Line terminal installation 300 to 303 and terminal the second line connect one to one to 304, can transmit d. c. voltage signal simultaneously, by described Digital Subscriber Line terminal installation 300 by this transmission line to local side First Line to 203 and local side the second line provide d. c. voltage signal to 204; Because two-wire transmits d. c. voltage signal to parallel connection, can reduce the resistance of transmission line, the electric current in transmission line is increased, thereby obtain larger reverse power supply distance.
It should be noted that, the digital signal relating in the embodiment of the present invention, can be the signal that adopts the digital user line technology such as G.Fast, VDSL2/ADSL2/2+ to produce, the signal that yet can produce for other digital user line technologies, make special regulation at this.
Those skilled in the art should understand, the application's embodiment can be provided as method, system or computer program.Therefore, the application can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the application can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The application is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present application, equipment (system) and computer program.Should understand can be by 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 the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.
Although described the application's preferred embodiment, once those skilled in the art obtain the basic creative concept of cicada, can make other change and amendment to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of the application's scope.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the embodiment of the present application the embodiment of the present application.Like this, if these amendments of the embodiment of the present application and within modification belongs to the scope of the application's claim and equivalent technologies thereof, the application is also intended to comprise these changes and modification interior.
Claims (15)
1. a numeral subscriber line local side device, is characterized in that, comprises local side processing module, is subject to electric module, at least one road bureau end First Line holds the second line to drawn game end interface module to, at least one road bureau; Described local side First Line to described local side the second line to corresponding one by one;
Described local side processing module is connected with described local side interface module by described local side First Line pair; Described be subject to electric module with described local side First Line to being connected; The right first end of described local side the second line is with corresponding described local side First Line to connecting, and the second right end of described local side the 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 the second line to being connected the interface of end side device;
Described local side First Line pair, transmits the d. c. voltage signal coming and receives described local side the second line to transmitting the d. c. voltage signal coming for transmission of digital signals, receiving terminal side;
Described local side the second line pair, the d. c. voltage signal coming for the transmission of receiving terminal side, is transferred to described local side First Line pair by this d. c. voltage signal;
Described local side processing module, the digital signal for the treatment of described local side First Line to transmission;
Describedly being subject to electric module, for receiving the each d. c. voltage signal of described local side First Line to transmission, is the device power supply of local side side according to each d. c. voltage signal.
2. local side device as claimed in claim 1, is characterized in that, also comprises local side the first isolation module, described in be subject to electric module by described local side the first isolation module with described local side First Line to being connected;
Described local side the first isolation module, for be subject to described in isolating electric module and described local side First Line between digital signal, make described local side First Line be subject to electric module to each d. c. voltage signal of transmission by described in rear arrival.
3. local side device as claimed in claim 2, is characterized in that, also comprises local side the second isolation module, the right first end of described local side the second line by described local side the second isolation module with described local side First Line to being connected;
Described local side the second isolation module, for isolate described local side the second line pair and described local side First Line between digital signal, make described local side the second line to the d. c. voltage signal receiving 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 comprises local side break-make module, described local side the 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 the 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, 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 claim 2 to 5 any one, is characterized in that, described local side the 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 claim 3 to 5 any one, is characterized in that, described local side the 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 installation, is characterized in that, comprise terminal processing module, supply module, terminal First Line to, terminal the second line to and terminal interface module;
The described terminal First Line that described terminal processing module passes through pair is connected with described terminal interface module; Described supply module with described terminal First Line to being connected; Described in the right first end of described terminal the second line, terminal First Line is to connecting, and the second right end of described terminal the second line is connected with described terminal interface module;
Described terminal interface module, for provide described terminal First Line to described terminal the second line pair interface being 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 the second line to transmission d. c. voltage signal;
Described terminal the second line pair, for receiving the d. c. voltage signal to transmission by described terminal First Line, and provides this d. c. voltage signal to local side side device;
Described terminal processing module, the digital signal for the treatment of described terminal First Line to transmission;
Described supply module, for to described terminal First Line to a d. c. voltage signal is provided.
9. terminal installation as claimed in claim 8, is characterized in that, also comprises terminal the first isolation module, described supply module by described terminal the first isolation module with described terminal First Line to being connected;
Described terminal the first isolation module, for isolate described supply module and described terminal First Line between digital signal, make d. c. voltage signal that described supply module provides by the described terminal First Line pair of rear arrival.
10. terminal installation as claimed in claim 9, is characterized in that, also comprises terminal the second isolation module, the right first end of described terminal the second line by described terminal the second isolation module with described terminal First Line to being connected;
Described terminal the second isolation module, for isolate described terminal the second line to and described terminal First Line between digital signal, make described terminal First Line to transmission d. c. voltage signal by described terminal the second line pair of rear arrival.
11. terminal installations as claimed in claim 10, is characterized in that, also comprise terminal break-make module, described terminal the 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 the 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 claim 9 to 12 any one, is characterized in that, described terminal the 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 claim 10 to 12 any one, is characterized in that, described terminal the 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 and at least one terminal installation as described in claim 8 to 14 any one as described in claim 1 to 7 any one, described in each the terminal interface module of terminal installation by First Line to being connected with the local side interface module of described local side device with the second line pair, the terminal First Line of described First Line pair and described terminal installation to a local side First Line of described local side device to corresponding, terminal second line of described First Line pair and described terminal installation to local side second line of 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 true CN104041001A (en) | 2014-09-10 |
| CN104041001B CN104041001B (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104041001B (en) |
| WO (1) | WO2015154311A1 (en) |
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| 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 |
| CN106301546A (en) * | 2015-06-09 | 2017-01-04 | 中兴通讯股份有限公司 | Reverse power supply circuit detection processing method and processing device |
| 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 |
| WO2017214922A1 (en) * | 2016-06-16 | 2017-12-21 | 华为技术有限公司 | Switching device |
| WO2018223863A1 (en) * | 2017-06-07 | 2018-12-13 | 中兴通讯股份有限公司 | Central office equipment, and reverse power supply system and method |
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| WO2018223863A1 (en) * | 2017-06-07 | 2018-12-13 | 中兴通讯股份有限公司 | Central office equipment, and reverse power supply system and method |
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Also Published As
| Publication number | Publication date |
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| CN104041001B (en) | 2016-03-09 |
| WO2015154311A1 (en) | 2015-10-15 |
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