CN103078662A - Loaded transmission circuit for VDSL (very-high-bit-rate digital subscriber loop) signals on direct current (DC) voltage cable - Google Patents
Loaded transmission circuit for VDSL (very-high-bit-rate digital subscriber loop) signals on direct current (DC) voltage cable Download PDFInfo
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- CN103078662A CN103078662A CN2012105894567A CN201210589456A CN103078662A CN 103078662 A CN103078662 A CN 103078662A CN 2012105894567 A CN2012105894567 A CN 2012105894567A CN 201210589456 A CN201210589456 A CN 201210589456A CN 103078662 A CN103078662 A CN 103078662A
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Abstract
The invention relates to a loaded transmission circuit for VDSL (very-high-bit-rate digital subscriber loop) signals on a direct current (DC) voltage cable, belonging to the field of communication transmission. The circuit comprises an inductor T1, an inductor T2, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a voltage stabilizing diode D1, a voltage stabilizing diode D2, a resistor R1, a resistor R2, a cable core I and a cable core II. By adopting the circuit, the DC voltage low-frequency transmission circuit can be superimposed on a VDSL signal high-frequency transmission circuit, the problem of realizing VDSL signal loaded transmission on the DC voltage cable is solved, and co-cable transmission of DC voltage and the VDSL signals can be realized on the two-core cable. The circuit can be used in technical fields requiring co-cable transmission of the DC voltage and communication, such as cabled power supply communication for deep water equipment and cabled power supply communication for mine equipment.
Description
Technical field
The present invention relates to the loading transmission circuit of a kind of VDSL signal on the direct voltage cable, belong to field of communication transmission.
Background technology
General VDSL method for transmitting signals adopts couple of conductor independently to transmit.When needs direct voltage and VDSL signal co-cable transmission, adopt 2 pairs of wires in the same cable to transmit respectively.Less than 4 o'clock, then can't satisfy the requirement of direct voltage and VDSL signal co-cable transmission at available cable core number.
Summary of the invention
The invention provides the loading transmission circuit of a kind of VDSL signal on the direct voltage cable, can realize direct voltage and VDSL signal co-cable transmission at 2 core cables.
The objective of the invention is to be achieved through the following technical solutions.
The loading transmission circuit of a kind of VDSL signal on the direct voltage cable, described circuit comprises: inductance T1, T2, capacitor C 1～C4, voltage stabilizing didoe D1, D2, resistance R 1, R2, and cable core I, cable core II; Wherein the two ends of cable core I are respectively side a and b, and the two ends of cable core II are respectively C end and D end;
Described circuit connecting mode is as follows:
Inductance T1 one end is connected with the input anode of direct voltage;
The negative pole of voltage stabilizing didoe D1 is connected with an end of resistance R 1, and the positive pole of voltage stabilizing didoe D1 is connected with the other end of resistance R 1, consists of protective circuit;
One end of capacitor C 1 respectively with the negative pole of voltage stabilizing didoe D1 with after an end of resistance R 1 is connected, be connected with input signal end 1, the other end of capacitor C 1 be combined into one the tunnel after the inductance T1 other end is connected, be connected with the A end of cable core I;
One end of capacitor C 2 respectively with the positive pole of voltage stabilizing didoe D1 with after the other end of resistance R 1 is connected, be connected with input signal end 2, the other end of capacitor C 2 is connected the C end with the input negative terminal of direct voltage respectively and is connected with the cable core II;
Inductance T2 one end is the output plus terminal of direct voltage;
The negative pole of voltage stabilizing didoe D2 is connected with an end of resistance R 2, and the positive pole of voltage stabilizing didoe D2 is connected with the other end of resistance R 2, consists of protective circuit;
One end of capacitor C 3 respectively with the negative pole of voltage stabilizing didoe D2 with after an end of resistance R 2 is connected, extended vacant termination is output signal end 1, the other end of capacitor C 3 be combined into one the tunnel after the inductance T2 other end is connected, be connected with the B end of cable core I;
One end of capacitor C 4 respectively with the positive pole of voltage stabilizing didoe D2 with after the other end of resistance R 2 is connected, extended vacant termination is output signal end 2, the other end of capacitor C 4 is connected with the cable core II after the D end connects, and is the output negative terminal of direct voltage.
Wherein, the effect of inductance T1, T2 is, prevents that high frequency VDSL signal from entering the input of direct voltage, damages the power supply that direct voltage is provided;
The effect of capacitor C 1, C2 is to prevent that direct voltage from entering the VDSL signal input part; The effect of capacitor C 3, C4 is to prevent that direct voltage from entering the VDSL signal output part;
The effect of protective circuit is, for avoiding excessive voltage damage caused at VDSL signal transmission two ends, and respectively cross-over connection resistance R 1 and R2 carry out the dividing potential drop protection between input signal end and output signal end; For avoiding upper surge that damage is caused at VDSL signal transmission two ends, cross-over connection voltage stabilizing didoe D1 and D2 carry out voltage-stabilizing protection respectively between input signal end and output signal end.
Beneficial effect
The invention provides the loading transmission circuit of a kind of VDSL signal on the direct voltage cable, described circuit has been realized the stack of direct voltage low-frequency transmission circuit and VDSL signal high frequency transmission circuit, solve the problem that realizes the transmission of VDSL signal loading at the direct voltage cable, can realize direct voltage and VDSL signal co-cable transmission at 2 core cables.Described circuit needing can be used for the technical field of direct voltage and the co-cable transmission of communicating by letter, and has cable cable to be arranged for fields such as telecommunications for telecommunication, pit gear such as deep water equipment.
Description of drawings
Fig. 1 is the principle schematic of the loading transmission circuit of VDSL signal on the direct voltage cable.
Embodiment
Below in conjunction with embodiment, this patent is described in further detail.
Embodiment
The loading transmission circuit of VDSL signal as shown in Figure 1 on the direct voltage cable, described circuit comprises: inductance T1, T2, capacitor C 1～C4, voltage stabilizing didoe D1, D2, resistance R 1, R2, and cable core I, cable core II; Wherein the two ends of cable core I are respectively side a and b, and the two ends of cable core II are respectively C end and D end;
Described circuit connecting mode is as follows:
Inductance T1 one end is connected with the input anode of direct voltage;
The negative pole of voltage stabilizing didoe D1 is connected with an end of resistance R 1, and the positive pole of voltage stabilizing didoe D1 is connected with the other end of resistance R 1, consists of protective circuit;
One end of capacitor C 1 respectively with the negative pole of voltage stabilizing didoe D1 with after an end of resistance R 1 is connected, be connected with input signal end 1, the other end of capacitor C 1 be combined into one the tunnel after the inductance T1 other end is connected, be connected with the A end of cable core I;
One end of capacitor C 2 respectively with the positive pole of voltage stabilizing didoe D1 with after the other end of resistance R 1 is connected, be connected with input signal end 2, the other end of capacitor C 2 is connected the C end with the input negative terminal of direct voltage respectively and is connected with the cable core II;
Inductance T2 one end is the output plus terminal of direct voltage;
The negative pole of voltage stabilizing didoe D2 is connected with an end of resistance R 2, and the positive pole of voltage stabilizing didoe D2 is connected with the other end of resistance R 2, consists of protective circuit;
One end of capacitor C 3 respectively with the negative pole of voltage stabilizing didoe D2 with after an end of resistance R 2 is connected, extended vacant termination is output signal end 1, the other end of capacitor C 3 be combined into one the tunnel after the inductance T2 other end is connected, be connected with the B end of cable core I;
One end of capacitor C 4 respectively with the positive pole of voltage stabilizing didoe D2 with after the other end of resistance R 2 is connected, extended vacant termination is output signal end 2, the other end of capacitor C 4 is connected with the cable core II after the D end connects, and is the output negative terminal of direct voltage.
When the loading transmission method of specific implementation VDSL signal on the direct voltage cable, transmission line is selected 2 core cables of arbitrary length in 0.5m～3000m scope, direct voltage is arbitrary magnitude of voltage in 10V～250V scope, it is that 3A, inductance value are the inductance of 600 μ H that inductance T1 and T2 select rated current, it is that 630V, appearance value are the nonpolar electric capacity of 2.2 μ F that capacitor C 1 ~ C4 selects withstand voltage, it is the voltage stabilizing didoe of 9.1V that voltage stabilizing didoe D1 and D2 select the voltage stabilizing value, and it is that 100K, power are the resistance of 0.5W that resistance R 1 and R2 select resistance.
Described circuit working mode is as follows:
At the end of inductance T1 and the C end input direct voltage of cable core II, apply the VDSL signal at input signal end 1 and input signal end 2 simultaneously; The VDSL signal is respectively by capacitor C 1, C2, in A, 2 of C and direct voltage stack; Described VDSL signal and direct voltage are all by cable core I, II transmission; When output, direct voltage is output by the D end of inductance T2 one end and cable core II, and the VDSL signal by capacitor C 3, C4, is output at output signal end 1 and output signal end 2 respectively.
In sum, above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. the loading transmission circuit of a VDSL signal on the direct voltage cable, it is characterized in that: described circuit comprises: inductance T1, T2, capacitor C 1～C4, voltage stabilizing didoe D1, D2, resistance R 1, R2, and cable core I, cable core II; Wherein the two ends of cable core I are respectively side a and b, and the two ends of cable core II are respectively C end and D end;
Described circuit connecting mode is as follows:
Inductance T1 one end is connected with the input anode of direct voltage;
The negative pole of voltage stabilizing didoe D1 is connected with an end of resistance R 1, and the positive pole of voltage stabilizing didoe D1 is connected with the other end of resistance R 1, consists of protective circuit;
One end of capacitor C 1 respectively with the negative pole of voltage stabilizing didoe D1 with after an end of resistance R 1 is connected, be connected with input signal end 1, the other end of capacitor C 1 be combined into one the tunnel after the inductance T1 other end is connected, be connected with the A end of cable core I;
One end of capacitor C 2 respectively with the positive pole of voltage stabilizing didoe D1 with after the other end of resistance R 1 is connected, be connected with input signal end 2, the other end of capacitor C 2 is connected the C end with the input negative terminal of direct voltage respectively and is connected with the cable core II;
Inductance T2 one end is the output plus terminal of direct voltage;
The negative pole of voltage stabilizing didoe D2 is connected with an end of resistance R 2, and the positive pole of voltage stabilizing didoe D2 is connected with the other end of resistance R 2, consists of protective circuit;
One end of capacitor C 3 respectively with the negative pole of voltage stabilizing didoe D2 with after an end of resistance R 2 is connected, extended vacant termination is output signal end 1, the other end of capacitor C 3 be combined into one the tunnel after the inductance T2 other end is connected, be connected with the B end of cable core I;
One end of capacitor C 4 respectively with the positive pole of voltage stabilizing didoe D2 with after the other end of resistance R 2 is connected, extended vacant termination is output signal end 2, the other end of capacitor C 4 is connected with the cable core II after the D end connects, and is the output negative terminal of direct voltage.
2. the loading transmission circuit of a kind of VDSL signal according to claim 1 on the direct voltage cable, it is characterized in that: transmission line is selected 2 core cables of arbitrary length in 0.5m～3000m scope, direct voltage is arbitrary magnitude of voltage in 10V～250V scope, it is 3A that inductance T1 and T2 select rated current, inductance value is the inductance of 600 μ H, it is 630V that capacitor C 1 ~ C4 selects withstand voltage, the appearance value is the nonpolar electric capacity of 2.2 μ F, it is the voltage stabilizing didoe of 9.1V that voltage stabilizing didoe D1 and D2 select the voltage stabilizing value, and it is 100K that resistance R 1 and R2 select resistance, power is the resistance of 0.5W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105894567A CN103078662A (en) | 2012-12-29 | 2012-12-29 | Loaded transmission circuit for VDSL (very-high-bit-rate digital subscriber loop) signals on direct current (DC) voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105894567A CN103078662A (en) | 2012-12-29 | 2012-12-29 | Loaded transmission circuit for VDSL (very-high-bit-rate digital subscriber loop) signals on direct current (DC) voltage cable |
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| Publication Number | Publication Date |
|---|---|
| CN103078662A true CN103078662A (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105894567A Pending CN103078662A (en) | 2012-12-29 | 2012-12-29 | Loaded transmission circuit for VDSL (very-high-bit-rate digital subscriber loop) signals on direct current (DC) voltage cable |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2728121Y (en) * | 2004-04-30 | 2005-09-21 | 上海贝电实业股份有限公司 | A VDSL remote power supplier |
| WO2009030875A1 (en) * | 2007-09-05 | 2009-03-12 | Tyco Electronics Uk Ltd | Xdsl bypass test facility |
| WO2009108095A1 (en) * | 2008-02-29 | 2009-09-03 | Telefonaktiebolaget L M Ericsson (Publ) | Test apparatus |
| CN201466666U (en) * | 2009-06-24 | 2010-05-12 | 杭州东冠通信建设有限公司 | VDSL-type photoelectric security unit |
| CN202364213U (en) * | 2011-12-07 | 2012-08-01 | 深圳市嘉世通科技有限公司 | High voltage direct current remote supply carrier communication circuit |
| CN102790629A (en) * | 2011-05-18 | 2012-11-21 | 亚旭电脑股份有限公司 | Hybrid circuit for ultra-high speed digital subscriber loop |
| CN203104440U (en) * | 2012-12-29 | 2013-07-31 | 中国船舶重工集团公司第七一○研究所 | A loading transmission circuit of a VDSL signal transmitting on a direct voltage cable |
-
2012
- 2012-12-29 CN CN2012105894567A patent/CN103078662A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2728121Y (en) * | 2004-04-30 | 2005-09-21 | 上海贝电实业股份有限公司 | A VDSL remote power supplier |
| WO2009030875A1 (en) * | 2007-09-05 | 2009-03-12 | Tyco Electronics Uk Ltd | Xdsl bypass test facility |
| WO2009108095A1 (en) * | 2008-02-29 | 2009-09-03 | Telefonaktiebolaget L M Ericsson (Publ) | Test apparatus |
| CN201466666U (en) * | 2009-06-24 | 2010-05-12 | 杭州东冠通信建设有限公司 | VDSL-type photoelectric security unit |
| CN102790629A (en) * | 2011-05-18 | 2012-11-21 | 亚旭电脑股份有限公司 | Hybrid circuit for ultra-high speed digital subscriber loop |
| CN202364213U (en) * | 2011-12-07 | 2012-08-01 | 深圳市嘉世通科技有限公司 | High voltage direct current remote supply carrier communication circuit |
| CN203104440U (en) * | 2012-12-29 | 2013-07-31 | 中国船舶重工集团公司第七一○研究所 | A loading transmission circuit of a VDSL signal transmitting on a direct voltage cable |
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Application publication date: 20130501 |