CN201467389U - Multi-interface integrated access device - Google Patents
Multi-interface integrated access device Download PDFInfo
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- CN201467389U CN201467389U CN2009201077645U CN200920107764U CN201467389U CN 201467389 U CN201467389 U CN 201467389U CN 2009201077645 U CN2009201077645 U CN 2009201077645U CN 200920107764 U CN200920107764 U CN 200920107764U CN 201467389 U CN201467389 U CN 201467389U
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Abstract
The utility model discloses a multi-interface integrated access device which comprises a framing and deframing module, a multiplexing and demultiplexing module and an optical path encoding and decoding module, wherein the framing and deframing module is used for allocating the received encoded data flow sent from a management terminal to 4 E1 paths according to the generated positioning clock signals, or is used for sending the data flow in the 4 E1 paths to the management terminal after time slot division; the multiplexing and demultiplexing module is connected with the framing and deframing module and is used for multiplexing the data flow in the 4 E1 paths into 8M data flow, or is used for demultiplexing the 8M data flow into the data flow in the 4 E1 paths after synchronization and sending the data flow to the framing and deframing module; and the optical path encoding and decoding module is connected with the multiplexing and demultiplexing module and is used for encoding the 8M E1 data flow into optical fiber transmission data code flow and sending the optical fiber transmission data code flow to a network server to realize the centralized monitoring for the management terminal, or is used for receiving the optical fiber transmission code flow sent to the management terminal and decoding the optical fiber transmission code flow into E1 data flow to be sent to the multiplexing and demultiplexing module. The technical scheme of the utility model can realize the access management of the integrated service of users in a special network.
Description
Technical field
The utility model relates to the data transmission set in the communications field, more particularly, relates to a kind of many interface synthesis access device.
Background technology
Binary system light pulse " 0 " sign indicating number that transmits in optical fiber telecommunications system and " 1 " sign indicating number carry out break-make by binary digital signal to light source and modulate and produce.And digital signal is sampled, is quantized the continually varying analog signal and the back of encoding produces, and is called PCM (pulse code modulation, pulse code modulation).
At present,, satisfy the transmission of user's big data quantity, can carry the more data transport service because PCM can provide very high bandwidth.So the PCM technology has been widely used in the dedicated communications network in public network and fields such as the energy, traffic, oil, finance, trade and army.
Usually, existing P CM integrated access equipment is to be based upon on the 2M bandwidth to realize multiplex technique, and interface is single mostly, does not possess the demand of versatility, has limited diversity of operations; And integration is low, operation and maintenance complexity, business demand that can not the satisfying magnanimity terminal.
Along with developing rapidly of the communication technology, at the problem that above-mentioned prior art exists, the PCM technology is had higher requirement, require to provide a kind of transmission equipment that general-purpose interface can carry multiple business that has, to realize the service access in the private wire network.
The utility model content
The purpose of this utility model provides a kind of many interface synthesis access device, and abundant interface can be provided, the transmission of carrying multiple business.
The technical solution of the utility model is as follows:
A kind of many interface synthesis access device, technical scheme comprises:
Framing is separated frame module, is used for according to the location clock signal that generates, and the distribution of flows that the office terminal after the process that receives is encoded sends is in 4 road E1 circuits; Perhaps, the data flow in 4 road E1 circuits is carried out sending to the office terminal after time slot decomposes;
Multiplexing separating used module, separates frame module with described framing and links to each other, and is used for the data flow multiplexing of described 4 road E1 circuits is become 8,000,000 data flow; Perhaps be used for sending to described framing and separating frame module with being multiplexed into 4 road E1 track datas stream after 8,000,000 the synchronization of data streams;
The optical link coding/decoding module links to each other with described multiplexing separating with module, is used for described 4 road E1 track data stream encryptions are become the data code flow of Optical Fiber Transmission, and sends to the webserver, to realize the centralized monitor to the office terminal; Perhaps be used to receive the Optical Fiber Transmission code stream that sends to the office terminal, and described code stream decoding is become to send to described multiplexing separating after the E1 data flow and use module.
Preferably, described equipment also comprises:
Subscriber Interface Module SIM is separated frame module with described framing and is linked to each other, and after the data flow that the office terminal that is used for receiving sends is carried out sample code, sends to described framing and separates frame module; Be used for that perhaps the described framing that receives is separated the time slot data that frame module extracts and send to the office terminal.
Preferably, described Subscriber Interface Module SIM specifically comprises:
Be used to receive the speech channel data, and after simulated audio signal is converted into digital signal, be inserted into speech path interface unit in the corresponding E1 time slot according to E1 time slot location clock;
Be used to receive and send the level signal of RS232 data, through being inserted into RS232 data interface unit in the E1 data flow according to E1 time slot location clock after the rate adapted;
Be used to receive the V.35 V.35 interface unit of the data of user terminal transmission;
Be used to receive the data that the external signal receiving chip sends, after the Ethernet protocol transducer is handled, convert the E1 signal to and be sent to framing and separate Ethernet interface unit in the frame module; With
Be used for the video flowing behind the compressed encoding, carry out synchronously through the buffer memory of programmable logic device and digital signal processing chip and audio digital signals after, be inserted into image and audio interface unit in effective time slot of E1 according to E1 time slot location clock.
Preferably, described optical link coding/decoding module specifically comprises: be used for data that the office terminal is sent or the 1B1H codec that the Optical Fiber Transmission code stream that receives from light path is carried out encoding and decoding; With link to each other with described 1B1H codec, be used for the track data extraction unit that the data that send from the office terminal or described Optical Fiber Transmission code stream extract signal clock.
Preferably, described equipment also comprises:
Time slot intersection control module is separated frame module with described Subscriber Interface Module SIM and framing and is linked to each other, and is used to receive time slot configuration order outside toggle switch configuration or the network management system configuration, the time slot position control information that produces the described Subscriber Interface Module SIM of control.
Preferably, described equipment also comprises:
Intersect control module, office terminal and the webserver with time slot and link to each other, be used to receive the instruction administration module of external control devices and office terminal configuration.
Preferably, described equipment also comprises:
Separate frame module with described framing, multiplexing separating with module links to each other with Subscriber Interface Module SIM, is used to produce the clock module of the various clock signals of internal system needs.
Adopt technical scheme described in the utility model,, provide abundant interface resource, can realize the access of the signaling interface and the data-interface of multiple speech channel for realizing the access control of user's integrated service; And by adopting technical solutions according to the invention can realize the terminal in the system is carried out centralized monitor, simple to operate, circuit is easy, and the reliability height.
Description of drawings
Fig. 1 is the brief configuration schematic diagram of equipment described in the utility model;
Fig. 2 is the work schematic diagram of the speech path interface unit of equipment described in the utility model;
Fig. 3 is the work schematic diagram of the V.35 interface unit of equipment described in the utility model.
Embodiment
The utility model proposes a kind of many interface synthesis access device, by adopting high performance chips computing technique, Programmable Logic Device, gigabit Ethernet transmission technology to provide enough fast information processing capability, also be that realization two-forty PCM technology and 8M bandwidth are laid a good foundation for described many interface synthesis access device.
Equipment described in the utility model, the service of multiple business can be provided to the user in private network, as numerical data private line service, speech, visual transport service, remote teaching etc. be applicable to the transfer of data rate requirement higherly, and the higher user of bandwidth requirement uses.
Adopt equipment described in the utility model, for the network management that has realized the user of large group integrated service provides management interface, multiple business is fused to multiple business in the equipment by abundant multiple interfaces manages concentratedly, comprise data service, speech channel and graphic service or the like.And adopt equipment described in the utility model to greatly reduce user's cost of investment, be convenient to safeguard.
In order better to understand the technical solution of the utility model, describe below in conjunction with specific embodiment.
As shown in Figure 1, a kind of many interface synthesis access device of the utility model, technical scheme comprises:
Framing is separated frame module 12, is used for according to the location clock signal that generates, and the distribution of flows that the office terminal after the process that receives is encoded sends is in 4 road E1 circuits; Perhaps, the data flow in 4 road E1 circuits is carried out sending to the office terminal after time slot decomposes;
Multiplexing separating with module 13 separated frame module with described framing and linked to each other, and is used for the data flow multiplexing of described 4 road E1 circuits is become 8,000,000 data flow; Perhaps be used for sending to described framing and separating frame module with being multiplexed into 4 road E1 track datas stream after 8,000,000 the synchronization of data streams;
Optical link coding/decoding module 14 links to each other with described multiplexing separating with module, is used for described 8,000,000 E1 data stream encoding is become the data code flow of Optical Fiber Transmission, and sends to the webserver, to realize the centralized monitor to the office terminal; Perhaps be used to receive the Optical Fiber Transmission code stream that sends to the office terminal, and with described code stream decoding become send to after the E1 data flow described multiplexing/separate and use module.
Further, framing separate frame module be to 8 road sign standards G.703 the E1 signal of standard carry out the Code And Decode of Clock Extraction, HDB3 (High Density Bipolar of order 3code, High Density Bipolar 3) signal, G.704 separate frame and framing;
The generation of user interface location clock, rate adapted, time slot allocation etc.Framing is separated frame module and is responsible for data flow that a large amount of office terminals that receive by Subscriber Interface Module SIM are sent, and is regular in 4 road E1 data flow according to the location clock, and sends to the multiplexing and demultiplexing module and handle.
Further, because number of users is a lot of in private network, so the multiplexing and demultiplexing module is that the mass data that the user sends is converged 4 road E1 data flow that the back generates, be multiplexed to one road Bitstream signal or road bit stream that network side is come is decomposed into 4 road E1 signals.In the process of the code stream that receiving light path comes, the multiplexing and demultiplexing module comprises the whole adjustment of sign indicating number, functions such as clock generating, code stream multiple connection are filled in, located to bit; Sending in the data procedures of user terminal to network side, the multiplexing and demultiplexing module mainly comprises functions such as the contrary adjustment of sign indicating number speed, data phase-locked loop.
Further, sending in the data procedures of user terminal to network side, the bit stream that the optical link coding/decoding module is sent user side here is encoded into the sign indicating number type that is suitable for Optical Fiber Transmission; In the process of the code stream that receiving light path comes, the bit stream decoding that the optical link coding/decoding module comes optical link becomes the NRZ sign indicating number, and ((NonReturn Zero, NRZ) gives the user side module.
Wherein, described optical link coding/decoding module specifically comprises: be used for data that the office terminal is sent or the 1B1H codec that the Optical Fiber Transmission code stream that receives from light path is carried out encoding and decoding; With link to each other with described 1B1H codec, be used for the track data extraction unit that the data that send from the office terminal or described Optical Fiber Transmission code stream extract signal clock.Can also comprise frame synchronization detecting unit etc.
Further, described equipment also comprises:
Subscriber Interface Module SIM 11 is separated frame module with described framing and is linked to each other, and after the data flow that the office terminal that is used for receiving sends is carried out sample code, sends to described framing and separates frame module; Be used for that perhaps the described framing that receives is separated the time slot data that frame module extracts and send to the office terminal.
Further, described Subscriber Interface Module SIM specifically comprises:
Be used to receive the speech channel data, and after simulated audio signal is converted into digital signal, be inserted into speech path interface unit 111 in the corresponding E1 time slot according to E1 time slot location clock;
Be used to receive and send the level signal of RS232 data, through being inserted into RS232 data interface unit 112 in the E1 data flow according to E1 time slot location clock after the rate adapted;
Be used to receive the V.35 V.35 interface unit 113 of the data of user terminal transmission;
Be used to receive the data that the external signal receiving chip sends, after the Ethernet protocol transducer is handled, convert the E1 signal to and be sent to framing and separate Ethernet interface unit 114 in the frame module; With
Be used for the video flowing behind the compressed encoding, carry out synchronously through the buffer memory of programmable logic device and digital signal processing chip and audio digital signals after, be inserted into image and audio interface unit 115 in effective time slot of E1 according to E1 time slot location clock.
In particular, the speech path interface unit mainly adopts PCM (modulation of pulse network sign indicating number) technology, and the audio signal of simulating is converted into does not have the digital signal that contracts, and is inserted in the corresponding E1 time slot according to E1 time slot location clock then.The speech path interface unit can provide the various interface circuit to adapt to different voice terminals.Speech path interface course of work schematic diagram is referring to Fig. 2.
In particular, the RS232 data interface unit mainly is made up of high-speed sampling module, BUFFER (buffer memory) module.The received signal level that the high-speed sampling module is responsible for the RS232 data receives and sends.The BUFFER module is carried out rate adapted and is inserted in the E1 bit stream according to E1 time slot location clock then.
In particular, V.35 interface unit is responsible for handling and is come from the data that user terminal V.35 comes.Comprise two kinds of pattern: dte (data terminal equipment) and dce (data communications equipment).Under the dte pattern, V.35 interface module is advanced inner FIFO according to the location clock of user terminal with Data Receiving, under the control of E1 time slot location clock it is read into framing and separates frame module.Under the dce pattern, carry out the reception and the transmission of data by clock internal control.V.35 the course of work schematic diagram of interface unit is referring to Fig. 3.
In particular, the Ethernet interface unit is used to receive the data that the external signal receiving chip sends, and passes through the processing of Ethernet protocol transducer then, converts the E1 signal to and is sent to framing and separates in the frame module and handle.
In particular, image and audio interface unit, be used for the video flowing behind the compressed encoding, through EPLD (Electrically Programmable Logic Device, the electrically programmable logical device) and DSP (Digital Signal Processing, Digital Signal Processing) buffer memory of chip, audio digital signals synchronously after, processings of packing, the control of locating clock according to the E1 time slot is inserted in 30 effective time slots of E1.
Further, described equipment also comprises:
Time slot intersection control module 15 is separated frame module with described Subscriber Interface Module SIM and framing and is linked to each other, and is used to receive time slot configuration order outside toggle switch configuration or the network management system configuration, the time slot position control information that produces the described Subscriber Interface Module SIM of control.
Further, described equipment also comprises:
Intersect control module, office terminal and the webserver with time slot and link to each other, be used to receive the administration module 16 of the instruction of external control devices and office terminal configuration.
Specifically, administration module is the interface of facilities and administration terminal or dial-up deploy switch, alarm indicator etc., be responsible for to receive configuration-direct or send alarm, state information. system or control or inquire about by outside hyper terminal CLI interface or interface, office terminal, perhaps carry out the remote online upgrading of equipment or management etc.
Preferably, described equipment also comprises:
Separate frame module with described framing, multiplexing separating with module links to each other with Subscriber Interface Module SIM, is used to produce the clock module 17 of the various clock signals of device interior needs.
Adopt technical scheme described in the utility model, detailed process is as follows:
When receiving the data of user terminal or office terminal transmission by Subscriber Interface Module SIM, behind its sample code, separating location clock that frame module produces according to framing sends described data into framing and separates in the frame module, described framing is separated frame module, the distribution of flows that the user is sent is in 4 road E1 circuits, and send to multiplexing separating and use module, described multiplexing separating with the data code flow of module with a 8M of the support of the data flow multiplexing in 4 road E1 circuits, handle the code stream that support is applicable to Optical Fiber Transmission by the optical link coding module, send to the webserver, so that the data in the management are carried out unified management.
When the optical link coding module receives the Optical Fiber Transmission code stream of webserver transmission, the code stream decoding of Optical Fiber Transmission is become data code flow, and send into multiplexing separating and use module, described multiplexing separating with module passes through this data flow to generate 4 road E1 data after the Synchronous Processing, and send to framing and separate frame module, described framing is separated frame module and the data based time slot of 4 tunnel E1 is intersected the control of control module is carried out after time slot decomposes, the time slot data that extract user terminal are given Subscriber Interface Module SIM, interface carries out contravariant with it and changes user data into and send to user terminal, realizes the control of network management server to the office terminal.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (7)
1. interface synthesis access device more than a kind is characterized in that, comprising:
Framing is separated frame module, is used for according to the location clock signal that generates, and the distribution of flows that the office terminal after the process that receives is encoded sends is in the circuit of 4 road E1; Perhaps, the track data stream of 4 road E1 is carried out sending to the office terminal after time slot decomposes;
Multiplexing separating used module, separates frame module with described framing and links to each other, and is used for the data flow multiplexing of described 4 road E1 circuits is become 8,000,000 data flow; Perhaps be used for and be multiplexed into the data flow of 4 road E1 circuits after 8,000,000 the synchronization of data streams, send to described framing and separate frame module;
The optical link coding/decoding module links to each other with described multiplexing separating with module, is used for described 4 road E1 track data stream encryptions are become the data code flow of Optical Fiber Transmission, and sends to the webserver, to realize the centralized monitor to the office terminal; Perhaps be used to receive the Optical Fiber Transmission code stream that sends to the office terminal, and described code stream decoding is become to send to described multiplexing separating after the E1 data flow and use module.
2. equipment according to claim 1 is characterized in that, described equipment also comprises:
Subscriber Interface Module SIM is separated frame module with described framing and is linked to each other, and after the data flow that the office terminal that is used for receiving sends is carried out sample code, sends to described framing and separates frame module; Be used for that perhaps the described framing that receives is separated the time slot data that frame module extracts and send to the office terminal.
3. equipment according to claim 2 is characterized in that, described Subscriber Interface Module SIM specifically comprises:
Be used to receive the speech channel data, and after simulated audio signal is converted into digital signal, be inserted into speech path interface unit in the corresponding E1 time slot according to E1 time slot location clock;
Be used to receive and send the level signal of RS232 data, through being inserted into RS232 data interface unit in the E1 data flow according to E1 time slot location clock after the rate adapted;
Be used to receive the V.35 V.35 interface unit of the data of user terminal transmission;
Be used to receive the data that the external signal receiving chip sends, after the Ethernet protocol transducer is handled, convert the E1 signal to and be sent to framing and separate Ethernet interface unit in the frame module;
Be used for the video flowing behind the compressed encoding, carry out synchronously through the buffer memory of programmable logic device and digital signal processing chip and audio digital signals after, be inserted into image and audio interface unit in effective time slot of E1 according to E1 time slot location clock.
4. equipment according to claim 1 is characterized in that, described optical link coding/decoding module specifically comprises: be used for data that the office terminal is sent or the 1B1H codec that the Optical Fiber Transmission code stream that receives from light path is carried out encoding and decoding; With link to each other with described 1B1H codec, be used for the track data extraction unit that the data that send from the office terminal or described Optical Fiber Transmission code stream extract signal clock.
5. equipment according to claim 2 is characterized in that, described equipment also comprises:
Time slot intersection control module is separated frame module with described Subscriber Interface Module SIM and framing and is linked to each other, and is used to receive the configuration of outside toggle switch or the time slot configuration order that network management server sends, the time slot position control information that produces the described Subscriber Interface Module SIM of control.
6. equipment according to claim 5 is characterized in that, described equipment also comprises:
Intersect control module, office terminal and the webserver with time slot and link to each other, be used to receive the administration module of the instruction of external control devices and office terminal configuration.
7. equipment according to claim 2 is characterized in that, described equipment also comprises:
Separate frame module with described framing, multiplexing separating with module links to each other with Subscriber Interface Module SIM, is used to produce the clock module of the various clock signals of device interior needs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201077645U CN201467389U (en) | 2009-04-29 | 2009-04-29 | Multi-interface integrated access device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201077645U CN201467389U (en) | 2009-04-29 | 2009-04-29 | Multi-interface integrated access device |
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| CN201467389U true CN201467389U (en) | 2010-05-12 |
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| CN2009201077645U Expired - Lifetime CN201467389U (en) | 2009-04-29 | 2009-04-29 | Multi-interface integrated access device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393962A (en) * | 2014-12-12 | 2015-03-04 | 成都朗锐芯科技发展有限公司 | Multi-way E1 deframing system |
| CN113489565A (en) * | 2021-08-09 | 2021-10-08 | 四川灵通电讯有限公司 | Multi-channel service shared channel transmission system based on synchronous time division multiplexing system |
-
2009
- 2009-04-29 CN CN2009201077645U patent/CN201467389U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393962A (en) * | 2014-12-12 | 2015-03-04 | 成都朗锐芯科技发展有限公司 | Multi-way E1 deframing system |
| CN113489565A (en) * | 2021-08-09 | 2021-10-08 | 四川灵通电讯有限公司 | Multi-channel service shared channel transmission system based on synchronous time division multiplexing system |
| CN113489565B (en) * | 2021-08-09 | 2023-11-24 | 四川灵通电讯有限公司 | Multi-channel service shared channel transmission system based on synchronous time division multiplexing system |
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