CN201718009U - Signal separator and digital individual line access multiplexing system - Google Patents
Signal separator and digital individual line access multiplexing system Download PDFInfo
- Publication number
- CN201718009U CN201718009U CN2010201932778U CN201020193277U CN201718009U CN 201718009 U CN201718009 U CN 201718009U CN 2010201932778 U CN2010201932778 U CN 2010201932778U CN 201020193277 U CN201020193277 U CN 201020193277U CN 201718009 U CN201718009 U CN 201718009U
- Authority
- CN
- China
- Prior art keywords
- signal input
- pin
- input port
- filter
- incoming line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Filters And Equalizers (AREA)
Abstract
The utility model is suitable for the field of communication, and provides a signal separator and a digital individual line access multiplexing system. The signal separator comprises a signal input terminal, a broad band signal output terminal and a voice signal output terminal, wherein the signal input terminal and the broad band signal output terminal are the same terminal physically, and an RLC (Radio Link Control) network filter is connected between the signal input terminal and the broad band signal output terminal and comprises at least four-grade cascading filtering units. Inductors of the RLC network filter are provided with a double-layered coil winding structure, so that the width of an attenuation band of the signal separator is greatly improved.
Description
Technical field
The utility model belongs to the communications field, relates in particular to a kind of demultiplexer and digital subscriber line access multiplexing system.
Background technology
Development along with modern communication technology, signal transmission form also is developed to present optical fiber by initial twisted-pair feeder, so just require the frequency bandwidth of our Splitter product to improve constantly, curb to satisfy the clutter that in the environment of frequency band broad, HFS is influenced voice signal, thereby improve conversation and online quality.
Present integrated services digital network (Integrated Services Digital Network, ISDN) frequency range of the band attenuation of the prior art standard of series of products is to 12MHz, attenuation band is narrower, can not adapt to modern Very-high-speed Digital Subscriber Line (Very-high-speed Digital Subscriber Line, the VDSL) requirement of product environment for use gradually.
The utility model content
The purpose of this utility model is to provide a kind of demultiplexer, is intended to solve the narrow problem of existing demultiplexer attenuation band.
The utility model is to realize like this, a kind of demultiplexer, comprise signal input port, broadband signal output port and voice signal output port, described signal input port and described broadband signal output port are same port physically, be connected with a RLC network filter between described signal input port and the described voice signal output port, described RLC network filter comprises the filter unit of at least 4 grades of cascades;
Filter branch of forming by resistance R 2 and capacitor C 2 on second incoming line that the 1st grade of filter unit in the described RLC network filter comprise the filter branch of being made up of resistance R 1 and capacitor C 1 on first incoming line that is connected described signal input port, be connected described signal input port and magnetic core inductance L 1 with double-deck winding structure; Wherein the 1st pin of magnetic core inductance L 1 and the 2nd pin are connected to the two ends of the filter branch of being made up of resistance R 1 and capacitor C 1, and the 3rd pin of magnetic core inductance L 1 and the 4th pin are connected to the two ends of the filter branch of being made up of resistance R 2 and capacitor C 2;
All the other filter units except that the 1st grade of filter unit in the described RLC network filter comprise electric capacity on first incoming line that is connected described signal input port respectively, be connected electric capacity on second incoming line of described signal input port and the magnetic core inductance with double-deck winding structure; Wherein the 1st pin of magnetic core inductance and the 2nd pin are connected to the two ends of the electric capacity on first incoming line of described signal input port, and the 3rd pin of magnetic core inductance L 1 and the 4th pin are connected to the two ends of the electric capacity on second incoming line of described signal input port;
Described RLC network filter also comprises some main capacitances, described main capacitance between the filter units at different levels and cross-over connection between first incoming line and second incoming line of described signal input port.
The utility model also provides a kind of digital subscriber line access multiplexing system, comprising:
Receive external digital signal and carry out the demultiplexer of Signal Separation;
Be connected, receive described demultiplexer with described demultiplexer and separate the common exchanging telephone network PSTN equipment that obtains voice signal;
Be connected, receive described demultiplexer with described demultiplexer and separate the digital subscriber line access multiplexing DSLAM equipment that obtains broadband signal;
Described demultiplexer comprises signal input port, broadband signal output port and voice signal output port, described signal input port and described broadband signal output port are same port physically, be connected with a RLC network filter between described signal input port and the described voice signal output port, described RLC network filter comprises the filter unit of at least 4 grades of cascades;
The filter branch of forming by resistance R 2 and capacitor C 2 on second incoming line that the 1st grade of filter unit in the described RLC network filter comprise the filter branch of being made up of resistance R 1 and capacitor C 1 on first incoming line that is connected described signal input port, be connected described signal input port and have double-deck winding structure magnetic core inductance L 1; Wherein the 1st pin of magnetic core inductance L 1 and the 2nd pin are connected to the two ends of the filter branch of being made up of resistance R 1 and capacitor C 1, and the 3rd pin of magnetic core inductance L 1 and the 4th pin are connected to the two ends of the filter branch of being made up of resistance R 2 and capacitor C 2;
All the other filter units except that the 1st grade of filter unit in the described RLC network filter comprise electric capacity on first incoming line that is connected described signal input port respectively, be connected the electric capacity on second incoming line of described signal input port and have double-deck winding structure magnetic core inductance; Wherein the 1st pin of magnetic core inductance and the 2nd pin are connected to the two ends of the electric capacity on first incoming line of described signal input port, and the 3rd pin of magnetic core inductance L 1 and the 4th pin are connected to the two ends of the electric capacity on second incoming line of described signal input port;
Described RLC network filter also comprises some main capacitances, described main capacitance between the filter units at different levels and cross-over connection between first incoming line and second incoming line of described signal input port.
Further, last 1 grade of filter unit of described RLC network filter is connected with one and has two-wire and around the magnet ring common mode inductance of structure, the 1st pin of described magnet ring common mode inductance and the 2nd pin are connected on first incoming line of described signal input port, and the 3rd pin of described magnet ring common mode inductance and the 4th pin are connected on second incoming line of described signal input port.
Further, described main capacitance is the main capacitance that the high-precision metal polypropylene is made.
Further, described signal input port, broadband signal output port and voice signal output port all adopt curved 2PIN formula connector.
Further, described demultiplexer also comprises some paster devices, and electric capacity in the described network filter and resistance are the paster device, are positioned over the bottom of the inductance in the network filter.
Further, described demultiplexer is integrated on the PCB.
In the utility model, inductance in the RLC network filter adopts small size skeleton and high density magnetic core, by double-deck method for winding, reduces line capacitance, to reach the purpose of performance index such as improving unbalanced to ground and high frequency attenuation, can improve the width of demultiplexer attenuation band greatly.Simultaneously, at last 1 grade of filter unit of RLC network filter magnet ring common mode inductance in addition, can further suppress high-frequency interferencing signal.In addition, all first incoming line and main capacitances between second incoming line that are connected across signal input port all adopt high-precision metal polypropylene material to make, and can satisfy the requirement of product to 135/150 impedance compatibility, make product performance index more stable simultaneously.Input, output port all adopt curved 2PIN formula connector to realize fully conserve space.For further reducing the size conserve space, whole demultiplexer can be integrated on the PCB, interface is used in unified planning.In addition, all paster devices all are placed on the bottom of inductance, can also protect the paster device to be subjected to the damage of external force like this when utilizing the space better.
Description of drawings
Fig. 1 is the structure principle chart of the digital subscriber line access multiplexing system that provides of the utility model embodiment;
Fig. 2 is the demultiplexer circuit schematic diagram that the utility model embodiment provides;
Fig. 3 is the shape schematic diagram of the input/output port of the demultiplexer that provides of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Among the utility model embodiment, be used to realize that the main body of demultiplexer that broadband signal and voice signal are separated is built by resistance, electric capacity and inductance, inductance wherein has double-deck winding structure, helps to improve the width of attenuation band.
Fig. 1 shows the structural principle of the digital subscriber line access multiplexing system that the utility model embodiment provides, and for convenience of description, only shows the part relevant with present embodiment.
With reference to Fig. 1, demultiplexer 1 receives the digital signal of outside input by external cable, include width signal and voice signal in this digital signal, demultiplexer 1 is used for width signal is wherein separated with voice signal, and the voice signal that separation obtains exported to by the connected PSTN equipment 2 of PSTN cable PSTN cable, the broadband signal that separation is obtained exports to by the connected DSLAM equipment 3 of digital subscriber line access multiplexing cable DSLAM cable.
Fig. 2 shows the circuit structure of demultiplexer 1 among Fig. 1, and corresponding with port among Fig. 1, wherein the LINE port is a signal input port, and the xDSL port is the broadband signal output port, and isdn port is the voice signal output port.Among the utility model embodiment, signal input port LINE and broadband signal output port xDSL are same port physically, be connected with a RLC network filter between signal input port LINE and the voice signal output port ISDN, this RLC network filter comprises the filter unit of at least 4 grades of cascades, and Fig. 2 is that example describes with 4 grades of filter units only.
The filter branch of forming by resistance R 2 and capacitor C 2 on second incoming line that the 1st grade of filter unit wherein comprise the filter branch of being made up of resistance R 1 and capacitor C 1 on first incoming line that is connected signal input port LINE, be connected signal input port LINE and adopt magnetic core inductance L 1 with double-deck winding structure; Wherein the 1st pin of magnetic core inductance L 1 and the 2nd pin are connected to the two ends of the filter branch of being made up of resistance R 1 and capacitor C 1, and the 3rd pin of magnetic core inductance L 1 and the 4th pin are connected to the two ends of the filter branch of being made up of resistance R 2 and capacitor C 2.All the other filter units except that the 1st grade of filter unit comprise capacitor C 4, C7, C10 on first incoming line that is connected signal input port LINE respectively, be connected capacitor C 5, C8, C11 on second incoming line of signal input port LINE and magnetic core inductance L 2, L3, the L4 with double-deck winding structure; Wherein the 1st pin of magnetic core inductance L 2, L3, L4 and the 2nd pin are connected to the two ends of the electric capacity (C4, C7, C10) on first incoming line of signal input port LINE, and the 3rd pin of magnetic core inductance L 1 and the 4th pin are connected to the two ends of the electric capacity (C5, C8, C11) on second incoming line of signal input port LINE.The RLC network filter also comprises some main capacitance C3, C6, C9, C12, this main capacitance between the filter units at different levels and cross-over connection between first incoming line and second incoming line of signal input port LINE.
Above-mentioned RLC network filter is a 1-80Khz low pass filter, the 150Khz-30Mhz signal is carried out-decay of 65dB, realization effectively separates with xDSL frequency 150Khz-30Mhz speech frequency 1-80Khz, reaches non-interfering purpose when conversing at the same time and surfing the Net.
For further suppressing high-frequency interferencing signal, be connected with one at last 1 grade of filter unit of RLC network filter and have two-wire and around the magnet ring common mode inductance of structure, as the L5 among Fig. 2, on first incoming line that the 1st pin of this magnet ring common mode inductance L5 and the 2nd pin are connected signal input port LINE, the 3rd pin and the 4th pin are connected on second incoming line of signal input port LINE.
In the present embodiment, the 1st pin and the 4th pin of magnetic core inductance L 1 shown in Figure 2, L2, L3, L4 are end of the same name, and the 1st pin and the 3rd pin of magnet ring common mode inductance L5 are end of the same name, represent with black circle in Fig. 2.In like manner the 2nd pin of magnetic core inductance L 1, L2, L3, L4 and the 3rd pin also are end of the same name, and the 2nd pin and the 4th pin of magnet ring common mode inductance L5 are end of the same name, represent with soft dot in Fig. 2.
In addition, all first incoming line and main capacitances between second incoming line that are connected across signal input port all adopt high-precision metal polypropylene material to make, and can satisfy the requirement of product to 135/150 impedance compatibility, make product performance index more stable simultaneously.
Input port in the present embodiment, output port all adopt curved 2PIN formula connector to realize that as shown in Figure 3, fully conserve space for this purpose, also can be integrated in whole demultiplexer on one PCB, and interface is used in unified planning.
In addition; capacitor C 1-C11 in the demultiplexer 1 and resistance R 1-R2 are the paster device; in the present embodiment above-mentioned all paster devices all are placed on the bottom of the inductance L 1-L4 in the network filter, when utilizing the space better, can also protect the paster device to be subjected to the damage of external force like this.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. demultiplexer, it is characterized in that, comprise signal input port, broadband signal output port and voice signal output port, described signal input port and described broadband signal output port are same port physically, be connected with a RLC network filter between described signal input port and the described voice signal output port, described RLC network filter comprises the filter unit of at least 4 grades of cascades;
Filter branch of forming by resistance R 2 and capacitor C 2 on second incoming line that the 1st grade of filter unit in the described RLC network filter comprise the filter branch of being made up of resistance R 1 and capacitor C 1 on first incoming line that is connected described signal input port, be connected described signal input port and magnetic core inductance L 1 with double-deck winding structure; Wherein the 1st pin of magnetic core inductance L 1 and the 2nd pin are connected to the two ends of the filter branch of being made up of resistance R 1 and capacitor C 1, and the 3rd pin of magnetic core inductance L 1 and the 4th pin are connected to the two ends of the filter branch of being made up of resistance R 2 and capacitor C 2;
All the other filter units except that the 1st grade of filter unit in the described RLC network filter comprise electric capacity on first incoming line that is connected described signal input port respectively, be connected electric capacity on second incoming line of described signal input port and the magnetic core inductance with double-deck winding structure; Wherein the 1st pin of magnetic core inductance and the 2nd pin are connected to the two ends of the electric capacity on first incoming line of described signal input port, and the 3rd pin of magnetic core inductance L 1 and the 4th pin are connected to the two ends of the electric capacity on second incoming line of described signal input port;
Described RLC network filter also comprises some main capacitances, described main capacitance between the filter units at different levels and cross-over connection between first incoming line and second incoming line of described signal input port.
2. demultiplexer as claimed in claim 1, it is characterized in that, last 1 grade of filter unit of described RLC network filter is connected with one and has two-wire and around the magnet ring common mode inductance of structure, the 1st pin of described magnet ring common mode inductance and the 2nd pin are connected on first incoming line of described signal input port, and the 3rd pin of described magnet ring common mode inductance and the 4th pin are connected on second incoming line of described signal input port.
3. demultiplexer as claimed in claim 1 is characterized in that, described main capacitance is the main capacitance that the high-precision metal polypropylene is made.
4. demultiplexer as claimed in claim 1 is characterized in that, described signal input port, broadband signal output port and voice signal output port all adopt curved 2PIN formula connector.
5. demultiplexer as claimed in claim 1 is characterized in that electric capacity in the described network filter and resistance are the paster device, is positioned over the bottom of the inductance in the network filter.
6. demultiplexer as claimed in claim 1 is characterized in that described demultiplexer is integrated on the PCB.
7. a digital subscriber line access multiplexing system is characterized in that, comprising:
Receive external digital signal and carry out the demultiplexer of Signal Separation;
Be connected, receive described demultiplexer with described demultiplexer and separate the common exchanging telephone network PSTN equipment that obtains voice signal;
Be connected, receive described demultiplexer with described demultiplexer and separate the digital subscriber line access multiplexing DSLAM equipment that obtains broadband signal;
Described demultiplexer comprises signal input port, broadband signal output port and voice signal output port, described signal input port and described broadband signal output port are same port physically, be connected with a RLC network filter between described signal input port and the described voice signal output port, described RLC network filter comprises the filter unit of at least 4 grades of cascades;
The filter branch of forming by resistance R 2 and capacitor C 2 on second incoming line that the 1st grade of filter unit in the described RLC network filter comprise the filter branch of being made up of resistance R 1 and capacitor C 1 on first incoming line that is connected described signal input port, be connected described signal input port and have double-deck winding structure magnetic core inductance L 1; Wherein the 1st pin of magnetic core inductance L 1 and the 2nd pin are connected to the two ends of the filter branch of being made up of resistance R 1 and capacitor C 1, and the 3rd pin of magnetic core inductance L 1 and the 4th pin are connected to the two ends of the filter branch of being made up of resistance R 2 and capacitor C 2;
All the other filter units except that the 1st grade of filter unit in the described RLC network filter comprise electric capacity on first incoming line that is connected described signal input port respectively, be connected the electric capacity on second incoming line of described signal input port and have double-deck winding structure magnetic core inductance; Wherein the 1st pin of magnetic core inductance and the 2nd pin are connected to the two ends of the electric capacity on first incoming line of described signal input port, and the 3rd pin of magnetic core inductance L 1 and the 4th pin are connected to the two ends of the electric capacity on second incoming line of described signal input port;
Described RLC network filter also comprises some main capacitances, described main capacitance between the filter units at different levels and cross-over connection between first incoming line and second incoming line of described signal input port.
8. digital subscriber line access multiplexing as claimed in claim 7 system, it is characterized in that, last 1 grade of filter unit of described RLC network filter is connected with a magnet ring common mode inductance, the 1st pin of described magnet ring common mode inductance and the 2nd pin are connected on first incoming line of described signal input port, and the 3rd pin of described magnet ring common mode inductance and the 4th pin are connected on second incoming line of described signal input port.
9. digital subscriber line access multiplexing as claimed in claim 7 system is characterized in that described main capacitance is the main capacitance that the high-precision metal polypropylene is made.
10. digital subscriber line access multiplexing as claimed in claim 7 system is characterized in that described signal input port, broadband signal output port and voice signal output port all adopt curved 2PIN formula connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201932778U CN201718009U (en) | 2010-05-12 | 2010-05-12 | Signal separator and digital individual line access multiplexing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201932778U CN201718009U (en) | 2010-05-12 | 2010-05-12 | Signal separator and digital individual line access multiplexing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201718009U true CN201718009U (en) | 2011-01-19 |
Family
ID=43464018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201932778U Expired - Fee Related CN201718009U (en) | 2010-05-12 | 2010-05-12 | Signal separator and digital individual line access multiplexing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201718009U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093740A (en) * | 2012-12-19 | 2013-05-08 | 广东威创视讯科技股份有限公司 | Tiled display system and mounting method of the same |
-
2010
- 2010-05-12 CN CN2010201932778U patent/CN201718009U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093740A (en) * | 2012-12-19 | 2013-05-08 | 广东威创视讯科技股份有限公司 | Tiled display system and mounting method of the same |
| CN103093740B (en) * | 2012-12-19 | 2015-10-07 | 广东威创视讯科技股份有限公司 | Splice displaying system and installation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6728367B1 (en) | Apparatus and method for filtering voiceband and metering tone frequencies of a mixed voice/data signal | |
| US6144734A (en) | Low-pass filters for splitterless pots and data transmission | |
| CN107424766A (en) | A kind of integrated form network filtering device | |
| US7457405B2 (en) | Enhanced low pass filter | |
| CN114915507B (en) | Gigabit POE power supply communication circuit | |
| CN101546909A (en) | Protective circuit, communication equipment and method for protecting device in communication equipment | |
| CN201718009U (en) | Signal separator and digital individual line access multiplexing system | |
| CN207869198U (en) | A kind of low-frequency filter using magnetic bead as HF switch | |
| JP2002539648A (en) | Low pass filter for ASDL diplexer | |
| CN102082886B (en) | Circuit and equipment of digital subscriber line | |
| CN101207368A (en) | Wave filter circuit | |
| CA2326929C (en) | A frequency sensitive inductance device in pots splitter design | |
| CN217114747U (en) | Port physical layer isolation signal coupler for network telephone exchange network card | |
| CN201114330Y (en) | ADSL voice separator circuit | |
| CN201114331Y (en) | ADSL voice separator | |
| CN201854338U (en) | Voice splitting module for asymmetric digital subscriber line (ADSL) and voice splitter | |
| CN101154963A (en) | Voice separating device with low-pass filtering compensation circuit | |
| CN208028966U (en) | A kind of telephone set with routing function | |
| CN207425509U (en) | A kind of thin loop constructions of G.fast | |
| CN205356499U (en) | Dsl separator | |
| CN207150694U (en) | A kind of VDSL2 Splitters and its circuit | |
| US8558642B2 (en) | Splitter circuits for separating signals | |
| CN2550970Y (en) | Wall buried type voice net shunt | |
| CN219372398U (en) | Filtering net gape circuit | |
| CN112865837B (en) | Communication apparatus and communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20140512 |