CN2687967Y - Digital user line accessing multiplexer interface board - Google Patents
Digital user line accessing multiplexer interface board Download PDFInfo
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- CN2687967Y CN2687967Y CN 03272318 CN03272318U CN2687967Y CN 2687967 Y CN2687967 Y CN 2687967Y CN 03272318 CN03272318 CN 03272318 CN 03272318 U CN03272318 U CN 03272318U CN 2687967 Y CN2687967 Y CN 2687967Y
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- interface device
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- digital subscriber
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Abstract
The utility model discloses a digital user line accessing multiplexer interface board which comprises a central processing unit (CPU), a system interface device and a general interface device. The CPU is connected with the system interface device and the general interface device by the internal data bus and is initialized. The system interface device is connected with the general interface device. The general interface device provides a standard external interface. The connecting technique of the user interface board can adopt ADSL, SHDSL, VDSL and LAN. The digital user line accessing multiplexer interface board adopts the standard interface to realize that the main frame is cascaded with the auxiliary frame. A general veneer is used to realize the network interface board function, the network interface expanded board function and the system expanded board function and simplify the complex degree of the system and guarantee that the interface board does not need to be changed when the network of the system is transformed and make the system be broadened more conveniently and flexibly.
Description
Technical field
The utility model relates to communication technical field, relates in particular to the interface board in a kind of Digital Subscriber Line Access Multiplexer.
Background technology
Along with the development of communication network, there has been increasing user enjoying the facility that work, life and amusement brought that them are given in the broadband.In numerous broadband access technologys, the XDSL technology utilizes existing twisted-pair feeder resource as transmission medium, adapt to different customer demands, development has formed ADSL (Asymmetric Digital Subscriber Line, be asymmetric digital subscriber loop), SHDSL (Single-pair High-speed Digital Subscriber Line, be that single line is to high-speed digital subscriber line), VDSL (Very-high-bit-rate Digital Subscriber Line, be the very high bit rate digital subscriber loop) etc. multiple access technology, obtained in the world to use widely, obtained good economic benefit and social benefit.
In realizing numerous equipment that the XDSL technology inserts, DSLAM (Digital SubscriberLine Access Multiplexer, i.e. Digital Subscriber Line Access Multiplexer) is most widely used telecommunication apparatus.DSLAM is installed in local local side, a plurality of DSL line sharings got up to transmit, and be user side DSL circuit destination node.Along with the number of users that single office point is inserted is more and more, the capacity of the DSLAM that needs is also increasing.Therefore, require DSLAM to have autgmentability flexibly.At first stage of construction, at first support the user of some, along with increasing of user, need progressively enlarge the capacity of DSLAM.
The following several technical schemes of the general employing of prior art:
1, the user when the office point progressively increases, and when surpassing the capacity of a DSLAM, just increases another one DSLAM equipment.Same office point, a plurality of DSLAM equipment, each DSLAM equipment provide a professional upstream Interface to link to each other with convergence device.
As shown in Figure 1, DSLAM (A) and DSLAM (B) are two separate equipment, comprise master control borad, user's plate, network interface board, broadband test plate etc. in each DSLAM equipment, have following shortcoming:
(1), DSLAM (A) and DSLAM (B) be two separate equipment, needs convergence device to provide two branches other up outlet, wasted the port resource of convergence device;
(2), DSLAM (A) and DSLAM (B) be two separate equipment, be not easy to administer and maintain.For some can be public equipment, for example must all there be a cover in broadband user's test board among each DSLAM, has improved system cost.
2, the user when the office point progressively increases, and when surpassing the capacity of a DSLAM, just increases another one DSLAM equipment.Same office point, a plurality of DSLAM equipment.DSLAM equipment originally provides the extension of network interface of standard, 155M light mouth etc. for example, and the DSLAM equipment that increases newly is connected the user by the extension of network interface with convergence device.
As shown in Figure 2, DSLAM (A) and DSLAM (B) are two separate equipment, comprise master control borad, user's plate, network interface board, broadband test plate etc. in each DSLAM equipment, also have the interface expansion board among the DSLAM (A), the interface expansion board of the network interface board of DSLAM (B) by DSLAM (A) is connected the user of DSLAM (B) with convergence device.
Compare with prior art 1, the technical program has solved the shortcoming (1) in the prior art 1, promptly only need provide a upstream Interface; But shortcoming (2) does not solve, and DSLAM-A and DSLAM-B are two separate equipment, are not easy to administer and maintain.For some can be shared equipment, for example must all there be a cover in broadband user's testing equipment among each DSLAM, has improved system cost.
3, the user when the office point progressively increases, and when surpassing the capacity of a DSLAM, increases from frame equipment.Main frame be connected by inner subtending cable from frame.Veneer from frame equipment is managed by System ExPand card by the master control borad in the main frame.So, same office point has only a DSLAM equipment.
As shown in Figure 3, increase DSLAM from frame, DSLAM comprises from frame from frame master control borad, user's plate, network interface board etc., in DSLAM master's frame except that master control borad, user's plate, broadband test plate, network interface board, also has System ExPand card, be connected with the System ExPand card of main frame by inner subtending cable from the network interface board of frame, have following shortcoming:
Compare with 2 technical scheme with prior art 1, this programme has solved shortcoming (1) and the shortcoming (2) in the prior art 1; But also having significantly deficiency, mainly is because System ExPand card provides the internal system interface, so can't dock with standard interface.Therefore, two kinds of different DSLAM can't connect by System ExPand card, and causing using becomes new restriction.
The utility model content
Technical problem to be solved in the utility model is: when overcoming existing DSLAM equipment increase from the frame dilatation, what adopt is the internal system interface, can't dock the inconvenience that is brought with standard interface, the utility model adopts a kind of DSLAM interface board, standard interface is provided, thereby the simplified system complexity makes things convenient for the expansion of DSLAM equipment.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be:
This Digital Subscriber Line Access Multiplexer Universal interface board, comprise CPU (CPU), system interface device and general-purpose interface device, described CPU joins by internal data bus and system interface device, general-purpose interface device, and it is carried out initialization; Described system interface device and general-purpose interface device join, and the general-purpose interface device provides the external interface of standard.
If Digital Subscriber Line Access Multiplexer (DSLAM) equipment adopts ATM(Asynchronous Transfer Mode) to insert, then described system interface device is the atm interface device, joins by ATM universal test and operating physical layer interface (UTOPIA) with the general-purpose interface device; The external interface of described general-purpose interface device is atm interface or SDH (Synchronous Digital Hierarchy) (SDH) interface.
If DSLAM equipment adopts local area network (LAN) to insert, then described system interface device is the Ethernet interface device, joins by gigabit Media Independent Interface (GMII) or Media Independent Interface (MII) with the general-purpose interface device; The external interface of described general-purpose interface device is an Ethernet interface.
Described Universal interface board is veneer independently, or is combined into a veneer with Digital Subscriber Line Access Multiplexer from the master control borad of frame.
The beneficial effects of the utility model are: the utility model has been realized the function of network interface board, network interface expansion board and three veneers of System ExPand card with a kind of general interface board, simplified the complexity of DSLAM system, when the DSLAM System Expansion, can utilize the standard interface of Universal interface board realize main frame with from the frame cascade, thereby convergence device only need provide a up outlet, has saved the port resource of convergence device; And the veneer from frame equipment can manage by the master control borad in the main frame, and the equipment in the master and slave frame can be shared, reduced system cost; When utilizing the standard interface of Universal interface board can guarantee the networking generation conversion of system, do not need to change interface board, thereby make system extension more convenient and flexible.
Description of drawings
Fig. 1 is prior art 1 a networking structure schematic diagram;
Fig. 2 is prior art 2 networking structure schematic diagrames;
Fig. 3 is prior art 3 networking structure schematic diagrames;
Fig. 4 is the utility model Universal interface board one structural representation;
Fig. 5 is the utility model Universal interface board two structural representations;
Fig. 6 is the utility model networking structure schematic diagram one;
Fig. 7 is the utility model networking structure schematic diagram two;
Fig. 8 is that the agreement of the utility model control flows realizes schematic diagram.
Embodiment
With embodiment the utility model is described in further detail with reference to the accompanying drawings below:
The utility model provides standard interface by a kind of veneer with general-purpose interface is provided in the DSALM system, realize network interface board, interface expansion board and three kinds of functions of System ExPand card.This veneer can be used as network interface board and uses, and links to each other with convergence device; Can be used as the network interface expansion board and use, be connected with other DSLAM equipment; Also can be used as System ExPand card and use, cascade enlarges the capacity of single DSLAM equipment from frame.
As shown in Figure 4, if DSLAM equipment adopts ATM(Asynchronous Transfer Mode) to insert, then the system configuration of Universal interface board as shown in the figure, Universal interface board mainly is made up of CPU, atm interface device, general-purpose interface device three parts.The CPU module is connected with other devices by internal data bus, mainly finishes the initial work of atm interface device and general-purpose interface device.Atm interface device and system line join, and by UTOPIA interface (Universal Test﹠amp; Operations PHY Interface for ATM, i.e. Universal Test ﹠ Operations PHY Interface for ATM) join with the general-purpose interface device, finish the exchange of cell; The general-purpose interface device can have a plurality of, and the ATM 155M interface or SDH (SDH (Synchronous Digital Hierarchy)) interface of standard is provided, and is used for and is connected from frame, other DSLAM equipment or atm network.
As shown in Figure 5, if DSLAM equipment adopts LAN (local area network (LAN)) access technology, then the system configuration of Universal interface board as shown in the figure, Universal interface board is made up of CPU, Ethernet interface device, general-purpose interface device three parts.The CPU module is connected with other devices by internal data bus, finishes the initial work of Ethernet interface device and general-purpose interface device.Ethernet interface device and system line join, and join with the general-purpose interface device by gigabit Media Independent Interface (GMII) or Media Independent Interface (MII), finish the exchange of Frame; The general-purpose interface device can have a plurality of, and the Ethernet interface of standard is provided, and is used for and is connected from frame, other DSLAM equipment or lan network.
Universal interface board mainly contains following three kinds of working methods:
(1), as standard network interface, be connected with convergence-level equipment, as shown in Figure 6.
(2), as standard network interface, be connected with other DSLAM, provide service convergence, as shown in Figure 6.
These two kinds of working methods and original system are basic identical, repeat no more here.
(3), as System ExPand card is provided, and link to each other from frame, the capacity of expansion system, as shown in Figure 7.
From the frame Business Stream:
, be linked into after the system by user's plate from the frame user's data, send to the Universal interface board of main frame then by Universal interface board from frame, and then the Universal interface board by being connected with convergence device, data are sent to convergence device.Then by the Universal interface board of main frame, the Universal interface board to from frame arrives the user's plate from frame to the data of network side then, to user's computer.
Control flows (two kinds of implementation methods are arranged):
1, the master control borad of main frame with all set up a management channels from all veneers of frame, the veneer of its management method and main frame is managed identical.Adopt this method, therefore the management channels that the master control borad of main frame is set up can manage more complicated along with increasing from increasing of frame veneer.
2, from the control messages of frame user plate, all send to master control borad from frame, then from the frame master control borad with message by service channel send to the main frame that links to each other from frame in Universal interface board, will send to the master control borad of main frame from the control messages of frame by this interface board.This method is fairly simple for the link layer of main frame, and the master control borad management in the main frame is from frame, only need set up the management channels of a Universal interface board in the main frame, realizes being more prone to.
The agreement that is illustrated in figure 8 as this control flows realizes schematic diagram, among the figure with HDLC (High-level Data Link Control, be High-Level Data Link Control) be example, explanation is from the communication means between frame user plate and the main frame master control borad, control messages adopts HDLC-procedure, also can use other agreements to realize, for example TCP/IP etc. transmits at PHY (physical layer) by ATM (asynchronous transfer mode) cell then.
Also can be integrated with the master control borad from frame from the Universal interface board of frame, system configuration is further simplified like this, convenient system extension and control.
Utilize the utility model, the access technology of user board can adopt ADSL (asymmetric number loop), SHDSL (single line is to high-speed digital subscriber line), VDSL (very high bit rate digital subscriber loop), LAN (local area network (LAN)) etc.The system interface device can be serial and puts multiple spot connected mode or bus mode, the utility model adopt standard interface realize main frame with from the frame cascade, network interface board, network interface expansion board and three kinds of functions of System ExPand card have been realized with a kind of general veneer, simplified the complexity of system, in the time of the networking generation conversion of assurance system, need not change interface board, thereby make system extension more convenient and flexible.
Claims (6)
1, a kind of Digital Subscriber Line Access Multiplexer Universal interface board, it is characterized in that: comprise CPU (CPU), system interface device and general-purpose interface device, described CPU joins by internal data bus and system interface device, general-purpose interface device, and it is carried out initialization; Described system interface device and general-purpose interface device join, and the general-purpose interface device provides the external interface of standard.
2, Digital Subscriber Line Access Multiplexer Universal interface board according to claim 1, it is characterized in that: if Digital Subscriber Line Access Multiplexer (DSLAM) equipment adopts ATM(Asynchronous Transfer Mode) to insert, then described system interface device is the atm interface device, joins by ATM universal test and operating physical layer interface (UTOPIA) with the general-purpose interface device.
3, Digital Subscriber Line Access Multiplexer Universal interface board according to claim 2 is characterized in that: the external interface of described general-purpose interface device is atm interface or SDH (Synchronous Digital Hierarchy) (SDH) interface.
4, Digital Subscriber Line Access Multiplexer Universal interface board according to claim 1, it is characterized in that: if DSLAM equipment adopts local area network (LAN) to insert, then described system interface device is the Ethernet interface device, joins by gigabit Media Independent Interface (GMII) or Media Independent Interface (MII) with the general-purpose interface device.
5, Digital Subscriber Line Access Multiplexer Universal interface board according to claim 4 is characterized in that: the external interface of described general-purpose interface device is an Ethernet interface.
6, according to claim 1,2 or 4 described Digital Subscriber Line Access Multiplexer Universal interface boards, it is characterized in that: described Universal interface board is veneer independently, or is combined into a veneer with Digital Subscriber Line Access Multiplexer from the master control borad of frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03272318 CN2687967Y (en) | 2003-07-06 | 2003-07-06 | Digital user line accessing multiplexer interface board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03272318 CN2687967Y (en) | 2003-07-06 | 2003-07-06 | Digital user line accessing multiplexer interface board |
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| CN2687967Y true CN2687967Y (en) | 2005-03-23 |
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| CN 03272318 Expired - Lifetime CN2687967Y (en) | 2003-07-06 | 2003-07-06 | Digital user line accessing multiplexer interface board |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006122490A1 (en) * | 2005-05-17 | 2006-11-23 | Huawei Technologies Co., Ltd. | A dsl subscriber board which can increase bandwidth and a method which can increase the bandwidth of dsl subscriber board |
| WO2008025296A1 (en) * | 2006-08-29 | 2008-03-06 | Huawei Technologies Co., Ltd. | Integrated access single board for accessing multiple businesses |
| CN1992731B (en) * | 2005-12-29 | 2010-04-21 | 上海贝尔阿尔卡特股份有限公司 | Access multiplexer of realizing multiple access modes with digital user line and method thereof |
| CN101030919B (en) * | 2006-03-02 | 2010-05-12 | 中兴通讯股份有限公司 | Method for converting duplexing interface board address realtime network address |
| CN101309209B (en) * | 2008-05-12 | 2012-07-04 | 华为技术有限公司 | Single board software restoring method and single board thereof |
-
2003
- 2003-07-06 CN CN 03272318 patent/CN2687967Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006122490A1 (en) * | 2005-05-17 | 2006-11-23 | Huawei Technologies Co., Ltd. | A dsl subscriber board which can increase bandwidth and a method which can increase the bandwidth of dsl subscriber board |
| US7599389B2 (en) | 2005-05-17 | 2009-10-06 | Huawei Technologies Co., Ltd. | DSL subscriber board with increasable bandwidth and method for increasing bandwidth of a DSL subscriber board |
| CN1992731B (en) * | 2005-12-29 | 2010-04-21 | 上海贝尔阿尔卡特股份有限公司 | Access multiplexer of realizing multiple access modes with digital user line and method thereof |
| CN101030919B (en) * | 2006-03-02 | 2010-05-12 | 中兴通讯股份有限公司 | Method for converting duplexing interface board address realtime network address |
| WO2008025296A1 (en) * | 2006-08-29 | 2008-03-06 | Huawei Technologies Co., Ltd. | Integrated access single board for accessing multiple businesses |
| CN101309209B (en) * | 2008-05-12 | 2012-07-04 | 华为技术有限公司 | Single board software restoring method and single board thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130706 Granted publication date: 20050323 |