CN101577765B - Line multiplexed communication equipment based on twisted pair, system and network thereof - Google Patents
Line multiplexed communication equipment based on twisted pair, system and network thereof Download PDFInfo
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- CN101577765B CN101577765B CN2009100835965A CN200910083596A CN101577765B CN 101577765 B CN101577765 B CN 101577765B CN 2009100835965 A CN2009100835965 A CN 2009100835965A CN 200910083596 A CN200910083596 A CN 200910083596A CN 101577765 B CN101577765 B CN 101577765B
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Abstract
The invention discloses a line multiplexed communication device based on twisted pair, a system and a network thereof, belonging to the technical field of communication. The line multiplexed communication device based on twisted pair comprises a PCM module, an SHDSL interface module and an alarm instruction module; the SHDSL interface module comprises one path or two paths of SHDSL interfaces, peripheral circuits, ASIC modules and MCU control modules; the line multiplexed communication system comprises two or more line multiplexed communication devices based on twisted pair, wherein one line multiplexed communication device based on twisted pair is used as a local end subsystem, the other line multiplexed communication devices based on twisted pair are used as far-end subsystems, and all the subsystems are connected by the twisted pair; and the line multiplexed communication network based on the twisted pair comprises two or more line multiplexed communication systems based on the twisted pair. The invention uses the twist pair to realize the line multiplexed communication system, one pair of twisted pair can connect multiple lines of phones, thus saving line cost.
Description
Technical field
The invention belongs to communication technical field, relate in particular to a kind of line sharing communication equipment, system and network thereof based on twisted-pair feeder.
Background technology
Along with rising steadily of copper valency, the cable cost that causes communication system to be used acutely rises, to the communication line investment pressure increase of non-optical cable.In order to save network construction cost, on the less link of some traffic carrying capacitys, adopt twisted-pair feeder to replace cable to build transmission link, become a kind of effective way of reducing investment outlay.
The symmetrical HDSL High-Speed Digital Subscriber Line of SHDSL (Symmetrical High bite Digital Subscriber Line) is to provide a kind of technology of transmitting bi-directional symmetrical band data business by what ITU-T defined on singly to twisted-pair feeder, meets G.991.2 proposed standard of International Telecommunication Association.Owing to adopt 16 level grid coding pulse amplitude modulation (TC-PAM) technology of superior performance, compressed transmission spectrum, improved noiseproof feature, prolonged transmission range.According to the requirement of ITU-TG.991.2, the transmission capacity of SHDSL line system can change in 192kbps to 2304kbps scope, and its change step should be supported 8kbps.And the payload transmission speed of actual SHDSL equipment is typically designed to N * 64kbps (DSO), and wherein the minimum value of N is 3; For the TDM transfer system, the maximum of N gets 32 usually, and for the ATM transfer system, the maximum of N then can be taken to 36.
Basic SHDSL line transmission system receives transmitter (STU-C) by local side and far-end receipts transmitters (STU-R) are formed.Usually local side STU-C concentrates and places and provide the network side upstream Interface, forms local side couple in multiplexer (DSLAM) equipment.DSLAM equipment adopts the TDM-E1-G.703 electrical interface usually; Far-end STU-R and user side data-interface have constituted the user side cpe device, and cpe device provides the TDM-E1-G.703 interface usually.
Yet the transmission range of SHDSL circuit is limited, and present existing line sharing system is mainly by optical cable transmission or the transmission of E1 circuit.Still there is not the line sharing system that utilizes twisted-pair feeder to realize.
Summary of the invention
The objective of the invention is to, a kind of line sharing communication equipment, system and network thereof based on twisted-pair feeder is provided, realize the communication function of long distance, multi-site, multi-service classification on a pair of twisted-pair feeder.
Technical scheme of the present invention is that a kind of line sharing communication equipment based on twisted-pair feeder comprises the PCM module, it is characterized in that described line sharing communication equipment also comprises SHDSL interface module and alarm indicating module;
SHDSL interface module and PCM module realize interconnection by the E1 bus that the PCM module provides;
The alarm indicating module is connected with the PCM module with the SHDSL interface module respectively;
Described SHDSL interface module comprises 1 tunnel or 2 road SHDSL interfaces, peripheral circuit, ASIC module and MCU control module; Wherein, peripheral circuit, ASIC module and MCU control module are connected successively; The SHDSL interface is used to connect other line sharing communication equipments based on twisted-pair feeder; Peripheral circuit is used for the conversion of SHDSL interface level; The ASIC module is used for the conversion of host-host protocol; The MCU control module is used to control the ASIC module.
Described peripheral circuit comprises rechargeable battery, is used to twisted-pair feeder that voltage is provided.
A kind of line sharing communication system based on twisted-pair feeder, it is characterized in that described line sharing communication system comprises the line sharing communication equipment based on twisted-pair feeder more than 2 or 2, wherein, 1 line sharing communication equipment based on twisted-pair feeder is as the local side subsystem, other based on the line sharing communication equipment of twisted-pair feeder as the far-end subsystem;
Each road SHDSL interface of the SHDSL interface module of local side subsystem all is arranged to the local side pattern;
One road SHDSL interface of the SHDSL interface module of far-end subsystem is arranged to the local side pattern, and another road SHDSL interface is arranged to far-end mode;
One road SHDSL interface of the SHDSL interface module of local side subsystem links to each other by twisted-pair feeder with the road SHDSL interface of being arranged to far-end mode of the SHDSL interface module of far-end subsystem, realizes being connected of local side subsystem and far-end subsystem; One road SHDSL interface of the local side pattern of being arranged to of the SHDSL interface module of far-end subsystem is connected with the road SHDSL interface of being arranged to far-end mode of other far-end subsystems by twisted-pair feeder, realizes being connected of far-end subsystem and far-end subsystem.
Described local side subsystem also comprises up E1 interface and descending E1 interface.
The PCM module of described local side subsystem links to each other with stored-program control exchange by telephone wire.
The PCM module of described far-end subsystem links to each other with phone by telephone wire.
A kind of line sharing communication network based on twisted-pair feeder, it is characterized in that described communication network comprises the line sharing communication system based on twisted-pair feeder more than 2 or 2, wherein, each local side subsystem based on the line sharing communication system of twisted-pair feeder all passes through the E1 circuit, the up E1 interface of self is connected with the descending E1 interface of the next one based on the local side subsystem of the line sharing communication system of twisted-pair feeder, realizes in twos in succession by the E1 Self-healing Rings passage of sharing.
Beneficial effect of the present invention is, uses twisted-pair feeder to realize the line sharing communication system, and a pair of twisted-pair feeder can connect multiplex telephony, need not connect a pair of twisted-pair feeder by every road phone, thereby save line cost; In addition, the present invention is lower than the line sharing communication system input of using optical cable or E1 circuit to realize.
Description of drawings
Fig. 1 is based on the hardware of the line sharing communication equipment of twisted-pair feeder and forms structure chart;
Fig. 2 is a SHDSL interface module schematic diagram;
Fig. 3 is based on the line sharing communication system architecture figure of twisted-pair feeder; Wherein, (a) be the structure chart that the local side subsystem connects two far-end subsystems respectively; (b) be the structure chart that the local side subsystem connects two far-end subsystems in proper order;
The inside network management information that Fig. 4 is based on the line sharing communication system of twisted-pair feeder transmits schematic diagram;
Fig. 5 is based on the line sharing communication network architecture schematic diagram of twisted-pair feeder;
Fig. 6 is based on the emergency communication schematic diagram of the line sharing communication system of twisted-pair feeder; Wherein, (a) be based on the line sharing communication system SHDSL interface gateway schematic diagram of twisted-pair feeder, (b) being this far-end subsystem short circuit schematic diagram after the power down of far-end subsystem, is the far-end subsystem short circuit schematic diagram adjacent with this far-end subsystem (c), (d) is all subsystem short circuit schematic diagrames.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment is elaborated.Should be emphasized that following explanation only is exemplary, rather than in order to limit the scope of the invention and to use.
Fig. 1 is based on the hardware of the line sharing communication equipment of twisted-pair feeder and forms structure chart.Among Fig. 1, the line sharing communication equipment based on twisted-pair feeder provided by the invention comprises PCM module, SHDSL interface module and alarm indicating module.Wherein, the PCM module is existing technology, similar to common PCM module, also comprise clock synchronization/phase lock circuitry, Nx64K digital crossover circuit DXC, logic, sequence circuit, network management interface, interface monitors control Driver Circuit, various A/D interfaces, power supply with stream bell unit, also have phonecard interface, magnetite interface etc.
Fig. 2 is a SHDSL interface module schematic diagram.Among Fig. 2, the SHDSL interface module of the line sharing communication equipment based on twisted-pair feeder provided by the invention comprises 1 tunnel or 2 road SHDSL interfaces, peripheral circuit, ASIC module and MCU control module; Wherein, peripheral circuit, ASIC module and MCU control module are connected successively; The SHDSL interface is used to connect other line sharing communication equipments based on twisted-pair feeder; Peripheral circuit is used for the conversion of SHDSL interface level; The ASIC module is used for the conversion of host-host protocol; The MCU control module is used to control the ASIC module.SHDSL interface module and PCM module realize interconnection by the E1 bus that the PCM module provides, concrete connected mode is: the transposition circuit of PCM module provides N bar E1 bus, the PCM module is with No. 1 E1 bus, the first via SHDSL interface of SHDSL interface module is with No. 2 E1 buses, the second road SHDSL interface of SHDSL interface module is with No. 3 E1 buses, external 2 E1 interfaces (when the line sharing communication equipment uses as the local side subsystem) use 4, No. 5 buses, by the software control on the MCUS, realize the interconnection of certain time slot on the bus.
The alarm indicating module is connected with the PCM module with the SHDSL interface module respectively.The alarm indicating module provides the operating state of various veneers or module and the alarm-monitor of SHDSL line status, and sends corresponding acousto-optic indication according to equipment running status.
The line sharing communication equipment based on twisted-pair feeder that the present invention proposes is a core with powerful cross matrix, functions such as integrated digital/simulation access, multiplexing, intersection, transmission.Can realize following function:
Automatic telephone, E/M interface, 2/4 line audio frequency, carrier wave, magnetite, common-battery etc.
10Base-T, V.35, RS232/485 etc.
SHDSL interface card: 2XE1 (two-way SHDSL integrated circuit board)
64 * E1 intersects entirely, supports the CAS signaling to intersect.
10Base-T, V.35 transducer container.
Fig. 3 is based on the line sharing communication system architecture figure of twisted-pair feeder.Shown in Fig. 3 is a kind of two kinds of system construction drawings of the line sharing communication system based on twisted-pair feeder.Communication system comprises the line sharing communication equipment based on twisted-pair feeder more than 2 or 2, and wherein, 1 line sharing communication equipment based on twisted-pair feeder is as the local side subsystem, other based on the line sharing communication equipment of twisted-pair feeder as the far-end subsystem.Each road SHDSL interface of the SHDSL interface module of local side subsystem all is arranged to the local side pattern; One road SHDSL interface of the SHDSL interface module of far-end subsystem is arranged to the local side pattern, and another road SHDSL interface is arranged to far-end mode.The PCM module of local side subsystem links to each other with stored-program control exchange by telephone wire 301, and the PCM module of far-end subsystem links to each other with phone by telephone wire 301.One road SHDSL interface of the SHDSL interface module of local side subsystem links to each other by twisted-pair feeder 302 with the road SHDSL interface of being arranged to far-end mode of the SHDSL interface module of far-end subsystem, realizes being connected of local side subsystem and far-end subsystem.Fig. 3 (a) is the structure chart that the local side subsystem connects two far-end subsystems respectively, and the two-way SHDSL interface of the SHDSL interface module of local side subsystem connects a far-end subsystem respectively.Fig. 3 (b) is the structure chart that the local side subsystem connects two far-end subsystems in proper order, one road SHDSL interface of the local side pattern of being arranged to of the SHDSL interface module of far-end subsystem is connected with the road SHDSL interface of being arranged to far-end mode of other far-end subsystems by twisted-pair feeder 302, realizes being connected of far-end subsystem and far-end subsystem.Pass through E1 bus 303 under in house software control based on PCM module in the line sharing communication equipment of twisted-pair feeder and SHDSL interface module, realize interconnection.
The inside network management information that Fig. 4 is based on the line sharing communication system of twisted-pair feeder transmits schematic diagram.As shown in Figure 4, the line sharing communication system based on twisted-pair feeder of the present invention provides the built-in system management interface.Link to each other with the corresponding interface of computer by network management interface (being generally the RS232/485 interface) the PCM module of local side subsystem, can realize system management based on the line sharing communication system of twisted-pair feeder, comprise PCM module information and SHDSL interface module information aggregating, and monitor and manage at the local side subsystem with owning administration's terminal system and far-end subsystem.System management can realize functions such as real-time monitoring equipment operation conditions, fault location, time slot reallocation, the adjustment of speech channel level.
Administrative section specifically comprises:
(1) interpolation of branch office, deletion and modification;
(2) interpolation of equipment, deletion;
(3) setting of equipment time slot, gain;
(4) data are preserved and system help.
The monitoring part specifically comprises:
(1) path testing: the tunnel condition of test speech channel;
(2) equipment state test: the situation of query facility real time execution;
(3) detect automatically: the signal of touring test all devices.
Fig. 5 is based on the line sharing communication network architecture schematic diagram of twisted-pair feeder.Described according to Fig. 4, line sharing communication system based on twisted-pair feeder provided by the invention, can realize the management of system, this is the management of ground floor, the present invention also provides the line sharing communication network based on twisted-pair feeder, can realize that simultaneously this is second layer management to the management of a plurality of line sharing communication systems based on twisted-pair feeder.Among Fig. 5, a kind of line sharing communication network provided by the invention based on twisted-pair feeder, comprise the line sharing communication system more than 2 or 2 based on twisted-pair feeder, wherein, each local side subsystem based on the line sharing communication system of twisted-pair feeder all passes through the E1 circuit, the up E1 interface of self is connected with the descending E1 interface of the next one based on the local side subsystem of the line sharing communication system of twisted-pair feeder, realizes in twos in succession by the E1 Self-healing Rings passage of sharing.In order to carry out network management, can also increase a network management center in the network, this network management center provides two E1 interfaces, up E1 interface is connected with a descending E1 interface based on the local side subsystem of the line sharing communication system of twisted-pair feeder, descending E1 interface is connected with adjacent another up E1 interface based on the local side subsystem of the line sharing communication system of twisted-pair feeder, so just network management center is linked in the line sharing communication network based on twisted-pair feeder.Network management center is by each local side subsystem based on the line sharing communication system of twisted-pair feeder in the network, PCM module information and the SHDSL interface module information of compiling all local sides of this communication system and far-end subsystem, functions such as real-time monitoring equipment operation conditions, fault location, time slot reallocation, the adjustment of speech channel level.
Line sharing communication system based on twisted-pair feeder provided by the invention also has the emergency communication function, and promptly when any one subsystem power down, whole system still can provide the phone call function.Its principle is: if the power down of local side subsystem, so can be by the program of subsystem inside, with the outside line of the magnetite interface of local side subsystem PCM module and twisted-pair feeder from being dynamically connected, utilize the distinctive signal in the circuit then, notify adjacent far-end subsystem successively, the twisted-pair feeder that makes each far-end is communicated with the magnetite interface circuit of PCM module of self simultaneously, has so just formed N magnetite phone while and is connected on the same twisted-pair feeder, realizes interim emergency communication.If some far-end subsystems power down, can utilize the distinctive signal in the subsystem to notify local side subsystem and other far-end subsystems simultaneously so, the magnetite interface of the PCM module of the magnetite interface of PCM module of local side subsystem and each far-end subsystem is parallel on the twisted-pair feeder simultaneously, realizes and the same interim communication of local side subsystem power down.Above-mentioned distinctive signal is meant voltage signal, in design, a rechargeable battery is arranged in the peripheral circuit of SHDSL interface module, on one side battery charge, Yi Bian provide voltage to 0.9mm line footpath copper cable.When local terminal has a power failure, on the copper cable of 0.9mm line footpath, just there has not been voltage, the opposite end detects on the copper cable of 0.9mm line footpath does not have voltage, just start emergency processing program, each subsystem in the reporting system on this direction need be done being connected of magnetite interface and 0.9mm line footpath copper cable, has so just finished the emergency communication under the power-down conditions.When local terminal equipment is sent a telegram here once more, 0.9mm line footpath copper cable has had voltage again, the opposite end detects 0.9mm line footpath copper cable voltage again, just start the emergency recovery program, each subsystem in the reporting system on this direction need be done the magnetite interface and be connected with the copper cable disconnection of 0.9mm line footpath, has so just finished the incoming call self-recovering function.
Fig. 6 is based on the emergency communication schematic diagram of the line sharing communication system of twisted-pair feeder.Among Fig. 6, (a) be based on the line sharing communication system SHDSL interface gateway schematic diagram of twisted-pair feeder, this moment system's operate as normal; (b) be this far-end subsystem short circuit schematic diagram after the power down of far-end subsystem, when certain far-end subsystem detects when not having voltage on the twisted-pair feeder, the magnetite interface of this subsystem PCM module is connected with twisted-pair feeder; Simultaneously, start emergency processing program, each subsystem in the reporting system on this direction is done being connected of magnetite interface and twisted-pair feeder; (c) be the far-end subsystem short circuit schematic diagram adjacent with this far-end subsystem, what at first receive the emergency processing program notice is two subsystems adjacent with the power down subsystem, and these two subsystems are done being connected of magnetite interface and twisted-pair feeder; (d) be all subsystem short circuit schematic diagrames, after all subsystems in the system were received emergency processing program notice, all subsystems were done being connected of magnetite interface and twisted-pair feeder, finally formed a plurality of magnetite phones simultaneously and be connected on the same twisted-pair feeder.
When power recovery, distinctive signal on the twisted-pair feeder can be given notice mutually, start the emergency recovery program, each subsystem in the reporting system on this direction is done the magnetite interface, and disconnection is connected with twisted-pair feeder, system will start the dialing of SHDSL transmission unit simultaneously shakes hands synchronously, thereby finishes the incoming call self-recovering function.
The present invention uses twisted-pair feeder to realize the line sharing communication system, and a pair of twisted-pair feeder can connect multiplex telephony, need not connect a pair of twisted-pair feeder by every road phone, thereby save line cost; In addition, the present invention is lower than the line sharing communication system input of using optical cable or E1 circuit to realize.
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 claim.
Claims (7)
1. the line sharing communication equipment based on twisted-pair feeder comprises the PCM module, it is characterized in that described line sharing communication equipment also comprises SHDSL interface module and alarm indicating module;
SHDSL interface module and PCM module realize interconnection by the E1 bus that the PCM module provides;
The alarm indicating module is connected with the PCM module with the SHDSL interface module respectively;
Described SHDSL interface module comprises 1 tunnel or 2 road SHDSL interfaces, peripheral circuit, ASIC module and MCU control module; Wherein, peripheral circuit, ASIC module and MCU control module are connected successively; The SHDSL interface is used to connect other line sharing communication equipments based on twisted-pair feeder; Peripheral circuit is used for the conversion of SHDSL interface level; The ASIC module is used for the conversion of host-host protocol; The MCU control module is used to control the ASIC module.
2. a kind of line sharing communication equipment based on twisted-pair feeder according to claim 1 is characterized in that described peripheral circuit comprises rechargeable battery, is used to twisted-pair feeder that voltage is provided.
3. line sharing communication system based on twisted-pair feeder, it is characterized in that described line sharing communication system comprises the line sharing communication equipment based on twisted-pair feeder as claimed in claim 1 more than 2 or 2, wherein, 1 line sharing communication equipment based on twisted-pair feeder is as the local side subsystem, other based on the line sharing communication equipment of twisted-pair feeder as the far-end subsystem;
Each road SHDSL interface of the SHDSL interface module of local side subsystem all is arranged to the local side pattern;
One road SHDSL interface of the SHDSL interface module of far-end subsystem is arranged to the local side pattern, and another road SHDSL interface is arranged to far-end mode;
One road SHDSL interface of the SHDSL interface module of local side subsystem links to each other by twisted-pair feeder with the road SHDSL interface of being arranged to far-end mode of the SHDSL interface module of far-end subsystem, realizes being connected of local side subsystem and far-end subsystem; One road SHDSL interface of the local side pattern of being arranged to of the SHDSL interface module of far-end subsystem is connected with the road SHDSL interface of being arranged to far-end mode of other far-end subsystems by twisted-pair feeder, realizes being connected of far-end subsystem and far-end subsystem.
4. a kind of line sharing communication system based on twisted-pair feeder according to claim 3 is characterized in that described local side subsystem also comprises up E1 interface and descending E1 interface.
5. a kind of line sharing communication system based on twisted-pair feeder according to claim 3 is characterized in that the PCM module of described local side subsystem links to each other with stored-program control exchange by telephone wire.
6. a kind of line sharing communication system based on twisted-pair feeder according to claim 3 is characterized in that the PCM module of described far-end subsystem links to each other with phone by telephone wire.
7. line sharing communication network based on twisted-pair feeder, it is characterized in that described line sharing communication network comprises the line sharing communication system based on twisted-pair feeder as claimed in claim 3 more than 2 or 2, wherein, each local side subsystem based on the line sharing communication system of twisted-pair feeder all passes through the E1 circuit, the up E1 interface of self is connected with the descending E1 interface of the next one based on the local side subsystem of the line sharing communication system of twisted-pair feeder, realizes in twos in succession by the E1 Self-healing Rings passage of sharing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100835965A CN101577765B (en) | 2009-05-12 | 2009-05-12 | Line multiplexed communication equipment based on twisted pair, system and network thereof |
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| CN2009100835965A CN101577765B (en) | 2009-05-12 | 2009-05-12 | Line multiplexed communication equipment based on twisted pair, system and network thereof |
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| CN101577765B true CN101577765B (en) | 2011-10-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101931651A (en) * | 2010-08-24 | 2010-12-29 | 广州日滨科技发展有限公司 | Remote network monitoring system |
| CN103326746B (en) * | 2013-06-24 | 2014-12-24 | 南京华东电子集团有限公司 | Broadband remote-transmission centralized control system based on multiple SHDSLs |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1139367A (en) * | 1995-06-28 | 1997-01-01 | 陕西省渭南为华通信技术研究所 | Digital group shunting share system |
| CN1234667A (en) * | 1998-05-06 | 1999-11-10 | 深圳市特发泰科通信有限公司 | Intelligent digit complex-connection system and net-composing method |
| CN1306362A (en) * | 2000-03-03 | 2001-08-01 | 深圳市中兴通讯股份有限公司 | Multi-service remote-end integrated unit and its networking method |
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2009
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1139367A (en) * | 1995-06-28 | 1997-01-01 | 陕西省渭南为华通信技术研究所 | Digital group shunting share system |
| CN1234667A (en) * | 1998-05-06 | 1999-11-10 | 深圳市特发泰科通信有限公司 | Intelligent digit complex-connection system and net-composing method |
| CN1306362A (en) * | 2000-03-03 | 2001-08-01 | 深圳市中兴通讯股份有限公司 | Multi-service remote-end integrated unit and its networking method |
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Granted publication date: 20111012 Termination date: 20200512 |