CN201238314Y - Synthetic service integration switching terminal device - Google Patents
Synthetic service integration switching terminal device Download PDFInfo
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- CN201238314Y CN201238314Y CNU200820078103XU CN200820078103U CN201238314Y CN 201238314 Y CN201238314 Y CN 201238314Y CN U200820078103X U CNU200820078103X U CN U200820078103XU CN 200820078103 U CN200820078103 U CN 200820078103U CN 201238314 Y CN201238314 Y CN 201238314Y
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Abstract
The utility model discloses a comprehensive-business multiplexing exchanging terminal device, and in particular relates to an spot-to-multi-spot communication comprehensive business multiplexing exchanging terminal device in the communication field, which mainly comprises a speech channel interface circuit, a control circuit, a group interface circuit, a monitoring circuit, a power source, and the like. The device is used for the group network communication from one spot to multiple spots so as to complete the multiple connection, the branch connection and the exchanging of the voice business, and to complete the multiple connection, the branch connection and the exchanging of the asynchronous data business, and to realize the multiple connection and the branch connection of the network data. The device has the advantages of high integration, simple configuration, flexible application and the like, and is particularly applicable to the one-spot-to-multi-spot middle-small capacity scattering network deployment communication terminals.
Description
Technical field
The utility model relates to the multiplexing exchange termination device of a kind of integrated service in the communications field, is specially adapted to the multiplexing exchange of the scattering point-to-multipoint delivery integrated service of low capacity.
Background technology
Big capacity scatter communication equipment because volume is big, power consumption is big, costs an arm and a leg, and generally is used as the primary transmission of fixed station or backbone network.At present, the scatter communication equipment of middle low capacity is all reducing aspect volume, the power consumption significantly, and its mobility and flexibility are greatly improved.Along with middle low capacity scatter communication equipment is used more and more widely in motor-driven communication aspects, in group-net communication, need a kind of terminal equipment that the transport service of middle low capacity scatter communication equipment can be carried out multiple connection, tap, exchange.In addition, the business of middle low capacity scatter communication transmission has speech, asynchronous data, network data, and its interface is nonstandard interface.Therefore, carry out group-net communication between the equipment and become problem demanding prompt solution.
Summary of the invention
The purpose of this utility model is to avoid the weak point in the above-mentioned background technology and provides a kind of is the multiplexing exchange termination device of integrated service that middle low capacity scattering group-net communication used flexibly, can handle multiple business.The utility model is applicable to a bit group-net communication of multiple spot, can be at most a bit to 4 points, and promptly a central station communicates four peripheral stations.The utility model is finished multiple connection, tap and the exchange of voice service; Finish multiple connection, tap and the exchange of asynchronous data traffic; Finish the multiple connection and the tap of network data.The utlity model has the integrated level height, configuration is simple, uses characteristics such as flexible.
The purpose of this utility model is achieved in that it comprises speech path interface circuit 1, control circuit 2, line interface circuit 3, supervisory circuit 4, power supply 5, the discrepancy port one of described speech path interface circuit 1 links to each other with two wires telephony interface A end, goes out inbound port 2 and links to each other with the discrepancy port one of control circuit 2; Control circuit 2 goes out inbound port 2 and links to each other with asynchronous data B end, going out inbound port 4 links to each other with the inbound port 2 that goes out of supervisory circuit 4, going out inbound port 5 links to each other with the discrepancy port one of supervisory circuit 4, go out inbound port 3 and link to each other, go out inbound port 6 and link to each other with the inbound port 7 that goes out of line interface circuit 3 with the discrepancy port one of line interface circuit 3; The inbound port 6 that goes out of line interface circuit 3 links to each other with network port C; Power supply 5 goes out end 1+V voltage end and links to each other with the input port 8 of line interface circuit 3.
The utility model control circuit 2 comprises asynchronous data interface level inverse transformer 6, synchronous asynchronous transducer 7, data exchange unit 8, exchanges data signaling generator 9, exchanges data signaling identifier 10 voice signaling identifiers 11, voice signaling generator 12, speech channel interchanger 13, asynchronous data interface level converter 14, asynchronous and synchronous transducer 15, wherein output port 2 pin of speech signaling identifier 11 link to each other with input 1 pin of speech channel interchanger 13; Output port 2 pin of speech channel interchanger 13 link to each other with input port 2 pin of signaling generator 12, gateway 3 pin of speech channel interchanger 13 link to each other with the discrepancy port one of line interface circuit 3, gateway 4 pin of speech channel interchanger 13 link to each other with the inbound port 7 that goes out of line interface circuit 3, gateway 5 pin of speech channel interchanger 13 link to each other with the inbound port 2 that goes out of speech path interface circuit 1, and gateway 6 pin of speech channel interchanger 13 link to each other with the discrepancy port one of supervisory circuit 4; Input port 1 pin of asynchronous data interface level converter 14 links to each other with the output of asynchronous data B, and output port 2 pin are connected to input port 1 pin of asynchronous and synchronous transducer 15; Output port 2 pin of asynchronous and synchronous transducer 15 are connected to input port 1 pin of data exchange unit 8; Output port 2 pin of data exchange unit 8 are connected to input port 2 pin of synchronous asynchronous transducer 7, and inbound port 5 pin that go out of data exchange unit 8 link to each other with the inbound port 2 that goes out of supervisory circuit 4; Output port 1 pin of synchronous asynchronous transducer 7 links to each other with input port 2 pin of asynchronous data interface level inverse transformer 6; Output port 1 pin of asynchronous data interface level inverse transformer 6 links to each other with asynchronous data B input port; Input port 1 pin of data signaling generator 9 links to each other with output port 3 pin of data exchange unit 8; Output port 1 pin of data signaling identifier 10 links to each other with input port 4 pin of data exchange unit 8; Asynchronous data interface level inverse transformer 6, synchronous asynchronous transducer 7, data exchange unit 8, exchanges data signaling generator 9, exchanges data signaling identifier 10 voice signaling identifiers 11, voice signaling generator 12, speech channel interchanger 13, asynchronous data interface level converter 14, asynchronous and synchronous transducer 15 are respectively gone into end 7 pin and are gone out end+V voltage end with power supply 5 and be connected, respectively go into to hold 8 pin earth terminals.
The utility model line interface circuit 3 comprises multiplexer-demultiplexer 16, group road automatic identification device 17, wherein, gateway 1 pin of multiplexer-demultiplexer 16 links to each other with the inbound port 3 that goes out of control circuit 2, gateway 2 pin link to each other with the inbound port 6 that goes out of control circuit 2, end 3 pin of coming in and going out link to each other with network port C, go out inbound port 4 pin, 5 pin, 6 pin, 7 pin and hold 1 pin, 2 pin, 3 pin, 4 pin to link to each other with the discrepancy of group road automatic identification device 17 respectively; Multiplexer-demultiplexer 16, group's road automatic identification device 17 are respectively gone into end 7 pin and are gone out end+V voltage end with power supply 5 and be connected, respectively go into to hold 8 pin earth terminals.
The utility model is compared background technology and is had following advantage:
1. the utility model installation and control circuit 2 and line interface circuit 3 in same equipment can be finished the multiple connection tap and the exchange of multiple business, comprises voice service, asynchronous data traffic and Network.
2. the monitoring of the exchange data using in the utility model control circuit 2 dial mode is set up data link, the quick foundation of two paths of data link arbitrarily in can realizing netting.When setting up data link, the callee does not need manual intervention, can set up automatically; When transmission channel breaks or arbitrary end shutdown, data link all can keep, but still proper communication during the channel recovery.
3. line interface circuit of the present utility model 3 adopts group road automatic identification technologies, and the group circuit-switched data of peripheral station can be connected on any one line interface of central station and not traffic affecting transmission and exchanging.
4. the integrated degree height of the utility model, so volume is little, in light weight, stable and reliable for performance, easy to maintenance.
Description of drawings
Fig. 1 is the electric functional-block diagram of the utility model embodiment.
Fig. 2 is the electrical schematic diagram of the utility model control circuit 2 embodiment.
Fig. 3 is the electrical schematic diagram of the embodiment of the utility model interface circuit 3.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model is made up of speech path interface circuit 1, control circuit 2, line interface circuit 3, supervisory circuit 4 and power supply 5, and Fig. 1 is an electric functional-block diagram of the present utility model, and embodiment presses Fig. 1 connection line.Speech path interface circuit 1 provides two wires common phone interface and exchanger user line interface among Fig. 1, and two wires common phone interface can connect ordinary telephone set, adopts interior other phones of dial mode and net to connect; The exchanger user line interface can be connected to public telephone network, military automatic telephone network, motor-driven backbone network, field operations net etc., make the common voice user in this communication system two wires can and the outer net telephone subscriber between realize intercommunication.Embodiment speech path interface circuit 1 adopts commercially available special purpose interface chip manufacturing, can finish 2/4 line conversion, impedance matching, phone power supply, dislodging machine testing, ringing-current output, simulation off-hook, ringing-current detection etc.Place piezo-resistance before the interface,, can play the certain protection effect at the thunder and lightning hitting time.Support the Dual Tone Multifrequency mode of common phone to dial, interface features meets the national military standard relevant criterion.Signal adopts the transmission of 600 Ω balancing twisted-pair lines can reach 1km.Speech coding adopts AMBE coding, code rate 2.4kb/s.Echo Cancellation can reach 50ms.
The utility model control circuit 2 is finished the exchange of speech channel; Finish asynchronous data the conversion of level conversion, asynchronous and synchronous, asynchronous data link foundation and cancel.Control circuit 2 comprises asynchronous data interface level inverse transformer 6, synchronous asynchronous transducer 7, data exchange unit 8, exchanges data signaling generator 9, exchanges data signaling identifier 10 voice signaling identifiers 11, voice signaling generator 12, speech channel interchanger 13, asynchronous data interface level converter 14, asynchronous and synchronous transducer 15.Fig. 2 is the electrical schematic diagram of the utility model control circuit 2 embodiment, and embodiment presses Fig. 2 connection line.
Asynchronous data interface level inverse transformer 6 is finished the conversion of asynchronous data Transistor-Transistor Logic level to the RS-232 level; Synchronous asynchronous transducer 7 converts synchrodata to the frame format of asynchronous data; Data exchange unit 8 is finished the function of exchange of data; Exchanges data signaling generator 9 produces the signaling that the clearing house needs; The exchanges data signaling that 10 identifications of exchanges data signaling identifier are received; The speech exchange of signaling that 11 identifications of voice signaling identifier are received; Voice signaling generator 12 produces the signaling that the speech channel clearing house needs; Speech channel interchanger 13 is finished the exchange of speech channel; Asynchronous data interface level converter 14 is Transistor-Transistor Logic level with asynchronous data by the RS-232 level conversion; Asynchronous and synchronous transducer 15 is converted to synchrodata with asynchronous data.Embodiment asynchronous data interface level inverse transformer 6 adopts the MAX3232EEAE chip of Maxiam company to realize with asynchronous data interface level converter 14; Synchronous asynchronous transducer 7, data exchange unit 8, exchanges data signaling generator 9, exchanges data signaling identifier 10 voice signaling identifiers 11, voice signaling generator 12, speech channel interchanger 13 adopt the FPGA circuit EP1C12Q240I7 of ALTERA company to realize with asynchronous and synchronous transducer 15.
Asynchronous data interface meets RS-232 electric interfaces and frame format, and transfer of data adopts asynchronous system, and data rate can be supported 1.2kbps, 2.4kbps and 4.8kbps.
Asynchronous data is adopted the asynchronous and synchronous conversion method, convert synchronous data flow to, realize the rate adapted of data simultaneously, and then carry out the multiple connection transmission.Asynchronous and synchronous conversion can reduce when wireless transmission channel error code to the damage of data flow.
The multiple connection and the tap of business datum finished in the effect of the utility model line interface circuit 3; And identification group road.Functions such as 4 road RS-422 interface conversion on realization and transmission equipment group road, group road subdivision connect.Every road interface rate can be set to 4.8 and 80kbps.The line interface circuit can be monitored having or not of group's mouthful code stream and clock signal, and group road tap OOF signal can be provided.It comprises multiplexer-demultiplexer 16, group road automatic identification device 17.Fig. 3 is the electrical schematic diagram of the embodiment of the utility model interface circuit 3, and embodiment presses Fig. 3 connection line.Multiplexer-demultiplexer 16 is finished the multiple connection and the tap of asynchronous data, voice data, network data.Group road automatic identification device 17 is identification group road automatically, finishes the interconnection on group road.Multiplexer-demultiplexer 16 and group road automatic identification device 17 adopt the FPGA circuit EP2C35F484I8N of ALTERA company to realize.
4 effects of the utility model supervisory circuit are that equipment is provided with, and display working condition.Exchange data using monitoring dial mode in the control circuit 2 is set up data link, the quick foundation of two paths of data link arbitrarily in can realizing netting.When setting up data link, the callee does not need manual intervention, can set up automatically; When transmission channel breaks or arbitrary end shutdown, data link all can keep, but still proper communication during the channel recovery.Embodiment supervisory circuit 4 adopts the ARM chip AT91R40807 of atmel corp to realize.
5 effects of the utility model power supply are to provide operating voltage for each parts.Embodiment power supply 5 adopts commercially available multiple power source module making, and its output voltage+V is+5V.
The utility model operation principle is as follows:
When carrying out data communication, at first to set up link.Select the number of destination data by the interface of monitoring, can set up link then, after data exchange unit 8 detects the application of setting up link, earlier to dial the number and analyze; By number analysis, can learn location, destination station number, then, send out to station accordingly and to set up link request, when receive reply after, on time slot corresponding, link is promptly set up success with the data allocations of correspondence.After setting up successfully, supervisory circuit 4 is preserved the link information of link.Either party sends when cancelling link request by monitoring, and data exchange unit 8 is cancelled link corresponding and notified monitoring that corresponding link information is fallen clearly.
When the communication of point-to-multipoint, central station often has a plurality of groups of roads.Line interface circuit 3 can prevent because the communication failure that the plug wrong plug causes.Concrete principle is to make a mark to the group road of each peripheral station, and when central station was received one tunnel group road, can judge was which peripheral station transmits, and adjusted the interface with tap then.
The utility model mounting structure is as follows: the circuit devcie among Fig. 1 to Fig. 3 is pressed Fig. 1 to Fig. 3 connection line.Their version is installed in respectively in six printed boards, printed board has two block lengths, wide is the printed board of 220 * 140mm, one block length, wide is the printed board of 262 * 120mm, one block length, wide is the printed board of 220 * 120mm, one block length, wide is the printed board of 116 * 83mm, one block length, wide is the printed board of 300 * 120mm, they be installed in one long, wide, height is in the equipment cabinets of 483 * 420 * 89mm, the LCD and the button of supervisory circuit 4 are installed on the front panel of cabinet, two wires phone input/output terminal socket is installed on the plate in the back, the input/output terminal socket of asynchronous data, the input/output terminal socket of network data, the assembly cost utility model.
Claims (3)
1. multiplexing exchange termination device of integrated service, it comprises speech path interface circuit (1), supervisory circuit (4), power supply (5), it is characterized in that: it comprises control circuit (2), line interface circuit (3), the discrepancy port one of described speech path interface circuit (1) links to each other with two wires telephony interface A end, goes out inbound port 2 and links to each other with the discrepancy port one of control circuit (2); Control circuit (2) goes out inbound port 2 and links to each other with asynchronous data B end, going out inbound port 4 links to each other with the inbound port 2 that goes out of supervisory circuit (4), going out inbound port 5 links to each other with the discrepancy port one of supervisory circuit (4), go out inbound port 3 and link to each other, go out inbound port 6 and link to each other with the inbound port 7 that goes out of line interface circuit (3) with the discrepancy port one of line interface circuit (3); The inbound port 6 that goes out of line interface circuit (3) links to each other with network port C; Power supply (5) goes out end 1+V voltage end and links to each other with the input port 8 of line interface circuit (3).
2. the multiplexing exchange termination device of integrated service according to claim 1, it is characterized in that: control circuit (2) comprises asynchronous data interface level inverse transformer (6), synchronous asynchronous transducer (7), data exchange unit (8), exchanges data signaling generator (9), exchanges data signaling identifier (10) voice signaling identifier (11), voice signaling generator (12), speech channel interchanger (13), asynchronous data interface level converter (14), asynchronous and synchronous transducer (15), wherein output port 2 pin of speech signaling identifier (11) link to each other with input 1 pin of speech channel interchanger (13); Output port 2 pin of speech channel interchanger (13) link to each other with input port 2 pin of signaling generator (12), gateway 3 pin of speech channel interchanger (13) link to each other with the discrepancy port one of line interface circuit (3), gateway 4 pin of speech channel interchanger (13) link to each other with the inbound port 7 that goes out of line interface circuit (3), gateway 5 pin of speech channel interchanger (13) link to each other with the inbound port 2 that goes out of speech path interface circuit (1), and gateway 6 pin of speech channel interchanger (13) link to each other with the discrepancy port one of supervisory circuit (4); Input port 1 pin of asynchronous data interface level converter (14) links to each other with the output of asynchronous data B, and output port 2 pin are connected to input port 1 pin of asynchronous and synchronous transducer (15); Output port 2 pin of asynchronous and synchronous transducer (15) are connected to input port 1 pin of data exchange unit (8); Output port 2 pin of data exchange unit (8) are connected to input port 2 pin of synchronous asynchronous transducer (7), and inbound port 5 pin that go out of data exchange unit (8) link to each other with the inbound port 2 that goes out of supervisory circuit (4); Output port 1 pin of synchronous asynchronous transducer (7) links to each other with input port 2 pin of asynchronous data interface level inverse transformer (6); Output port 1 pin of asynchronous data interface level inverse transformer (6) links to each other with asynchronous data B input port; Input port 1 pin of data signaling generator (9) links to each other with output port 3 pin of data exchange unit (8); Output port 1 pin of data signaling identifier (10) links to each other with input port 4 pin of data exchange unit (8); Asynchronous data interface level inverse transformer (6), synchronous asynchronous transducer (7), data exchange unit (8), exchanges data signaling generator (9), exchanges data signaling identifier (10) voice signaling identifier (11), voice signaling generator (12), speech channel interchanger (13), asynchronous data interface level converter (14), asynchronous and synchronous transducer (15) are respectively gone into end 7 pin and are gone out end+V voltage end with power supply (5) and be connected, respectively go into to hold 8 pin earth terminals.
3. the multiplexing exchange termination device of integrated service according to claim 1 and 2, it is characterized in that: line interface circuit (3) comprises multiplexer-demultiplexer (16), group's road automatic identification device (17), wherein, gateway 1 pin of multiplexer-demultiplexer (16) links to each other with the inbound port 3 that goes out of control circuit (2), gateway 2 pin link to each other with the inbound port 6 that goes out of control circuit (2), end 3 pin of coming in and going out link to each other with network port C, go out inbound port 4 pin, 5 pin, 6 pin, 7 pin and hold 1 pin, 2 pin, 3 pin, 4 pin to link to each other with the discrepancy of group road automatic identification device (17) respectively; Multiplexer-demultiplexer (16), group's road automatic identification device (17) are respectively gone into end 7 pin and are gone out end+V voltage end with power supply (5) and be connected, respectively go into to hold 8 pin earth terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820078103XU CN201238314Y (en) | 2008-07-31 | 2008-07-31 | Synthetic service integration switching terminal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820078103XU CN201238314Y (en) | 2008-07-31 | 2008-07-31 | Synthetic service integration switching terminal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201238314Y true CN201238314Y (en) | 2009-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820078103XU Expired - Fee Related CN201238314Y (en) | 2008-07-31 | 2008-07-31 | Synthetic service integration switching terminal device |
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| Country | Link |
|---|---|
| CN (1) | CN201238314Y (en) |
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2008
- 2008-07-31 CN CNU200820078103XU patent/CN201238314Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20160731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |